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

Summary | ZeroBOX

leApp14.exe

Generic Malware PE32 PE File .NET EXE

Category	Machine	Started	Completed
FILE	s1_win7_x6403_us	Oct. 20, 2021, 5:35 p.m.	Oct. 20, 2021, 5:38 p.m.

Size	78.5KB
Type	PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5	`a395af3db4f82f425bba5f5c27ef6a8e`
SHA256	`b8d2d5095e10c9f0c52a6eeb3ecf6ff52858bdb21037749943a8f38d0da36724`
CRC32	`9E63714A`
ssdeep	`768:vQLoaz+HjUBzVvMQGIl7Q+DLBLaoUETTlzDI0soq2ZiGVGHGQG/4GmGhG/GN1KrL:vQZz+DUBzGI17LBVpU0sh4BGaL3u`
Yara	PE_Header_Zero - PE File Signature Generic_Malware_Zero - Generic Malware IsPE32 - (no description) Is_DotNET_EXE - (no description) Win_Backdoor_AsyncRAT_Zero - Win Backdoor AsyncRAT

leApp14.exe "C:\Users\test22\AppData\Local\Temp\leApp14.exe"
2404

Name	Response	Post-Analysis Lookup
apps.identrust.com	A 121.254.136.27 CNAME a1952.dscq.akamai.net CNAME identrust.edgesuite.net A 121.254.136.57	119.207.65.74
store2.gofile.io	A 31.14.69.10	31.14.69.10

IP Address	Status	Action
121.254.136.57	Active	Moloch
164.124.101.2	Active	Moloch
31.14.69.10	Active	Moloch

Suricata Alerts

Flow	SID	Signature	Category
TCP 192.168.56.103:49168 -> 31.14.69.10:443	906200022	SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)	undefined

Suricata TLS

Flow	Issuer	Subject	Fingerprint
TLS 1.2 192.168.56.103:49168 31.14.69.10:443	C=US, O=Let's Encrypt, CN=R3	CN=*.gofile.io	4c:cc:6b:32:8f:55:d8:cc:fa:f4:4d:ae:80:a1:dd:b7:e3:e2:84:ae

Queries for the computername (2 events)

Time & API	Arguments	Status	Return	Repeated
GetComputerNameA Oct. 20, 2021, 5:36 p.m.	computer_name: TEST22-PC	1	1	0
GetComputerNameW Oct. 20, 2021, 5:36 p.m.	computer_name: TEST22-PC	1	1	0

Checks if process is being debugged by a debugger (4 events)

Time & API	Arguments	Status	Return	Repeated
IsDebuggerPresent Oct. 20, 2021, 5:35 p.m.			0	0
IsDebuggerPresent Oct. 20, 2021, 5:35 p.m.			0	0
IsDebuggerPresent Oct. 20, 2021, 5:36 p.m.			0	0
IsDebuggerPresent Oct. 20, 2021, 5:36 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 Oct. 20, 2021, 5:35 p.m.		1	1	0

One or more potentially interesting buffers were extracted, these generally contain injected code, configuration data, etc.

Performs some HTTP requests (1 event)

request

GET http://apps.identrust.com/roots/dstrootcax3.p7c

Allocates read-write-execute memory (usually to unpack itself) (19 events)

Time & API	Arguments	Status	Return	Repeated
NtAllocateVirtualMemory Oct. 20, 2021, 5:35 p.m.	process_identifier: 2404 region_size: 2031616 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x007b0000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Oct. 20, 2021, 5:35 p.m.	process_identifier: 2404 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00960000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Oct. 20, 2021, 5:35 p.m.	process_identifier: 2404 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73bd1000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Oct. 20, 2021, 5:35 p.m.	process_identifier: 2404 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73bd2000 process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Oct. 20, 2021, 5:35 p.m.	process_identifier: 2404 region_size: 1245184 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00640000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Oct. 20, 2021, 5:35 p.m.	process_identifier: 2404 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00730000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Oct. 20, 2021, 5:35 p.m.	process_identifier: 2404 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00362000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Oct. 20, 2021, 5:35 p.m.	process_identifier: 2404 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00495000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Oct. 20, 2021, 5:35 p.m.	process_identifier: 2404 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0049b000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Oct. 20, 2021, 5:35 p.m.	process_identifier: 2404 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00497000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Oct. 20, 2021, 5:35 p.m.	process_identifier: 2404 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0037c000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Oct. 20, 2021, 5:35 p.m.	process_identifier: 2404 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x01f70000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Oct. 20, 2021, 5:35 p.m.	process_identifier: 2404 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0036a000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Oct. 20, 2021, 5:36 p.m.	process_identifier: 2404 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0038a000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Oct. 20, 2021, 5:36 p.m.	process_identifier: 2404 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00387000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Oct. 20, 2021, 5:36 p.m.	process_identifier: 2404 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00386000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Oct. 20, 2021, 5:36 p.m.	process_identifier: 2404 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0038b000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Oct. 20, 2021, 5:36 p.m.	process_identifier: 2404 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0037a000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory Oct. 20, 2021, 5:36 p.m.	process_identifier: 2404 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0036c000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0

Checks adapter addresses which can be used to detect virtual network interfaces (1 event)

Time & API	Arguments	Status	Return	Repeated
GetAdaptersAddresses Oct. 20, 2021, 5:36 p.m.	flags: 15 family: 0		111	0

File has been identified by 15 AntiVirus engines on VirusTotal as malicious (15 events)

Cybereason	malicious.9debb9
Cyren	W32/MSIL_Kryptik.FVA.gen!Eldorado
ESET-NOD32	a variant of MSIL/TrojanDownloader.Agent.JDX
APEX	Malicious
Kaspersky	HEUR:Trojan-Downloader.MSIL.Seraph.gen
Avast	Win32:RATX-gen [Trj]
DrWeb	Trojan.DownLoader43.47658
Microsoft	Trojan:Win32/Sabsik.FL.B!ml
ZoneAlarm	HEUR:Trojan-Downloader.MSIL.Seraph.gen
VBA32	Trojan-Downloader.MSIL.gen
SentinelOne	Static AI - Suspicious PE
BitDefenderTheta	Gen:NN.ZemsilF.34218.em0@aKl9KDo
AVG	Win32:RATX-gen [Trj]
CrowdStrike	win/malicious_confidence_60% (W)
MaxSecure	Trojan.Malware.300983.susgen