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Guide 2020-06-10
Version history 2020-06-10

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l6E.exe
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66ecb4573225b_vsbhfdg1...
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66ec0e61998bf_setup30.exe
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Desktop_Explorer.exe
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66ec3528901bb_winupdat...

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Summary | ZeroBOX

protect.msi

Malicious Library UPX MSOffice File PE File DLL OS Processor Check PE32 CAB

Category	Machine	Started	Completed
FILE	s1_win7_x6401	Sept. 22, 2023, 5:42 p.m.	Sept. 22, 2023, 5:52 p.m.

Size	13.7MB
Type	Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.2, MSI Installer, Code page: 1252, Title: Installation Database, Subject: Default, Author: ScreenConnect Software, Keywords: Default, Comments: Default, Template: Intel;1033, Revision Number: {BDB7A22F-2368-5B41-315D-8D376AABA7E8}, Create Time/Date: Fri Sep 1 23:29:12 2023, Last Saved Time/Date: Fri Sep 1 23:29:12 2023, Number of Pages: 200, Number of Words: 2, Name of Creating Application: Windows Installer XML Toolset (3.11.0.1701), Security: 2
MD5	`8a740944a8031c72ddd594c45bff03bc`
SHA256	`dcf28000b6584c2bb0dda2396fd840e5288df792a80bc3909fe0646d3375e1ba`
CRC32	`63213A03`
ssdeep	`196608:NkUKpnSrFhkUKpnUkUKpnJkUKpn8kUKpnH:jMnS5MneMnHMnGMnH`
Yara	Malicious_Library_Zero - Malicious_Library Microsoft_Office_File_Zero - Microsoft Office File CAB_file_format - CAB archive file OS_Processor_Check_Zero - OS Processor Check

msiexec.exe "C:\Windows\System32\msiexec.exe" /I C:\Users\test22\AppData\Local\Temp\protect.msi
2628
explorer.exe C:\Windows\Explorer.EXE
1452

Name	Response	Post-Analysis Lookup
instance-v6ojw1-relay.screenconnect.com	CNAME server-nixf8ba5709-relay.screenconnect.com A 147.75.84.236	147.75.84.236

IP Address	Status	Action
147.75.84.236	Active	Moloch
164.124.101.2	Active	Moloch

Suricata Alerts

Flow	SID	Signature	Category
TCP 192.168.56.101:49166 -> 147.75.84.236:443	2048051	ET POLICY ScreenConnect-ConnectWise Initial Checkin Packet M2	A Network Trojan was detected

Suricata TLS

No Suricata TLS

Queries for the computername (3 events)

Time & API	Arguments	Status	Return	Repeated
GetComputerNameW Sept. 22, 2023, 5:42 p.m.	computer_name: TEST22-PC	1	1	0
GetComputerNameA Sept. 22, 2023, 5:42 p.m.	computer_name: TEST22-PC	1	1	0
GetComputerNameW Sept. 22, 2023, 5:42 p.m.	computer_name: TEST22-PC	1	1	0

Checks if process is being debugged by a debugger (1 event)

Time & API	Arguments	Status	Return	Repeated
IsDebuggerPresent Sept. 22, 2023, 5:42 p.m.			0	0

Checks amount of memory in system, this can be used to detect virtual machines that have a low amount of memory available (1 event)

Time & API	Arguments	Status	Return	Repeated
GlobalMemoryStatusEx Sept. 22, 2023, 5:42 p.m.		1	1	0

Allocates read-write-execute memory (usually to unpack itself) (18 events)

Time & API	Arguments	Status	Return	Repeated
NtProtectVirtualMemory Sept. 22, 2023, 5:42 p.m.	process_identifier: 2628 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x736b1000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Sept. 22, 2023, 5:42 p.m.	process_identifier: 2628 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73951000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Sept. 22, 2023, 5:42 p.m.	process_identifier: 2628 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72b01000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Sept. 22, 2023, 5:42 p.m.	process_identifier: 2628 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72ac4000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Sept. 22, 2023, 5:42 p.m.	process_identifier: 2628 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72b02000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Sept. 22, 2023, 5:42 p.m.	process_identifier: 2628 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72781000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Sept. 22, 2023, 5:42 p.m.	process_identifier: 2628 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72761000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Sept. 22, 2023, 5:42 p.m.	process_identifier: 2628 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73921000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Sept. 22, 2023, 5:42 p.m.	process_identifier: 2628 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72741000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Sept. 22, 2023, 5:42 p.m.	process_identifier: 2628 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x726f1000 process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Sept. 22, 2023, 5:42 p.m.	process_identifier: 2628 region_size: 393216 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x03800000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Sept. 22, 2023, 5:42 p.m.	process_identifier: 2628 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x03820000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Sept. 22, 2023, 5:42 p.m.	process_identifier: 2628 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x726e2000 process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Sept. 22, 2023, 5:42 p.m.	process_identifier: 2628 region_size: 1441792 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x03940000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Sept. 22, 2023, 5:42 p.m.	process_identifier: 2628 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x03a60000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Sept. 22, 2023, 5:42 p.m.	process_identifier: 2628 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x72611000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Sept. 22, 2023, 5:42 p.m.	process_identifier: 2628 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x75511000 process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Sept. 22, 2023, 5:36 p.m.	process_identifier: 1452 region_size: 65536 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0000000003f10000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffffffffffff	1	0	0

Queries the disk size which could be used to detect virtual machine with small fixed size or dynamic allocation (4 events)

Time & API	Arguments	Status	Return	Repeated
GetDiskFreeSpaceExW Sept. 22, 2023, 5:42 p.m.	total_number_of_free_bytes: 13308600320 free_bytes_available: 13308600320 root_path: C:\ total_number_of_bytes: 34252779520	1	1	0
GetDiskFreeSpaceW Sept. 22, 2023, 5:42 p.m.	number_of_free_clusters: 3249170 sectors_per_cluster: 8 bytes_per_sector: 512 root_path: C:\ total_number_of_clusters: 8362495	1	1	0
GetDiskFreeSpaceExW Sept. 22, 2023, 5:42 p.m.	total_number_of_free_bytes: 13308530688 free_bytes_available: 13308530688 root_path: C:\ total_number_of_bytes: 34252779520	1	1	0
GetDiskFreeSpaceW Sept. 22, 2023, 5:42 p.m.	number_of_free_clusters: 3249153 sectors_per_cluster: 8 bytes_per_sector: 512 root_path: C:\ total_number_of_clusters: 8362495	1	1	0

Drops an executable to the user AppData folder (1 event)

file	C:\Users\test22\AppData\Local\Temp\MSIF637.tmp

File has been identified by 2 AntiVirus engines on VirusTotal as malicious (2 events)

Zillya	Trojan.Stealer.Win32.37991
McAfee-GW-Edition	Artemis!Trojan

Checks for the Locally Unique Identifier on the system for a suspicious privilege (16 events)

Time & API	Arguments	Status	Return	Repeated
LookupPrivilegeValueW Sept. 22, 2023, 5:42 p.m.	system_name: privilege_name: SeShutdownPrivilege	1	1	0
LookupPrivilegeValueW Sept. 22, 2023, 5:42 p.m.	system_name: privilege_name: SeCreateTokenPrivilege	1	1	0
LookupPrivilegeValueW Sept. 22, 2023, 5:42 p.m.	system_name: privilege_name: SeAssignPrimaryTokenPrivilege	1	1	0
LookupPrivilegeValueW Sept. 22, 2023, 5:42 p.m.	system_name: privilege_name: SeMachineAccountPrivilege	1	1	0
LookupPrivilegeValueW Sept. 22, 2023, 5:42 p.m.	system_name: privilege_name: SeTcbPrivilege	1	1	0
LookupPrivilegeValueW Sept. 22, 2023, 5:42 p.m.	system_name: privilege_name: SeSecurityPrivilege	1	1	0
LookupPrivilegeValueW Sept. 22, 2023, 5:42 p.m.	system_name: privilege_name: SeTakeOwnershipPrivilege	1	1	0
LookupPrivilegeValueW Sept. 22, 2023, 5:42 p.m.	system_name: privilege_name: SeLoadDriverPrivilege	1	1	0
LookupPrivilegeValueW Sept. 22, 2023, 5:42 p.m.	system_name: privilege_name: SeBackupPrivilege	1	1	0
LookupPrivilegeValueW Sept. 22, 2023, 5:42 p.m.	system_name: privilege_name: SeRestorePrivilege	1	1	0
LookupPrivilegeValueW Sept. 22, 2023, 5:42 p.m.	system_name: privilege_name: SeShutdownPrivilege	1	1	0
LookupPrivilegeValueW Sept. 22, 2023, 5:42 p.m.	system_name: privilege_name: SeDebugPrivilege	1	1	0
LookupPrivilegeValueW Sept. 22, 2023, 5:42 p.m.	system_name: privilege_name: SeRemoteShutdownPrivilege	1	1	0
LookupPrivilegeValueW Sept. 22, 2023, 5:42 p.m.	system_name: privilege_name: SeEnableDelegationPrivilege	1	1	0
LookupPrivilegeValueW Sept. 22, 2023, 5:42 p.m.	system_name: privilege_name: SeManageVolumePrivilege	1	1	0
LookupPrivilegeValueW Sept. 22, 2023, 5:42 p.m.	system_name: privilege_name: SeCreateGlobalPrivilege	1	1	0