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Client-built300.exe

Generic Malware Admin Tool (Sysinternals etc ...) UPX Malicious Packer PE File PE32
  1. Resubmit sample
Category Machine Started Completed
FILE s1_win7_x6403_us June 14, 2023, 5:39 p.m. June 14, 2023, 5:48 p.m.
Size 1.8MB
Type PE32 executable (GUI) Intel 80386, for MS Windows
MD5 a49c5e330ff32fce3525644710daacdf
SHA256 121ae5f10dcf3d17712963a24c03b3abef427781924b6b72f2b48dfd1e6f3607
CRC32 E519BDB0
ssdeep 12288:wG+i1cTob5rpXuEq++p6xG5ssxODepysgSk9DyL1HUyIP9IylT8rhke6nuRs9U5m:wrkcG+p6U5U8ae6n+5ra7krn6qw
Yara
  • UPX_Zero - UPX packed file
  • Malicious_Packer_Zero - Malicious Packer
  • PE_Header_Zero - PE File Signature
  • Admin_Tool_IN_Zero - Admin Tool Sysinternals
  • IsPE32 - (no description)
  • Generic_Malware_Zero - Generic Malware

Name Response Post-Analysis Lookup
No hosts contacted.
IP Address Status Action
No hosts contacted.

Suricata Alerts

No Suricata Alerts

Suricata TLS

No Suricata TLS

Time & API Arguments Status Return Repeated

__exception__

 stacktrace: 
GetThreadDesktop+0xd7 GetWindowLongW-0x2c4 user32+0x16d3a @ 0x755f6d3a
GetClientRect+0xc5 CallWindowProcW-0xb user32+0x20d27 @ 0x75600d27
CallWindowProcA+0x1b GetClassNameA-0x95 user32+0x2794a @ 0x7560794a
client-built300+0x16a30f @ 0x56a30f
client-built300+0x169a06 @ 0x569a06
EbLoadRunTime+0x1166 DllFunctionCall-0xb5 msvbvm60+0xa048 @ 0x7294a048
BASIC_CLASS_QueryInterface+0xeca EbLoadRunTime-0x13a4 msvbvm60+0x7b3e @ 0x72947b3e
ThunRTMain+0x3dd EbCreateContext-0x2e36 msvbvm60+0x3981 @ 0x72943981
ThunRTMain+0x156 EbCreateContext-0x30bd msvbvm60+0x36fa @ 0x729436fa
ThunRTMain+0x5c EbCreateContext-0x31b7 msvbvm60+0x3600 @ 0x72943600
client-built300+0x19da @ 0x4019da
RtlInitializeExceptionChain+0x63 RtlAllocateActivationContextStack-0xa1 ntdll+0x39ed2 @ 0x778d9ed2
RtlInitializeExceptionChain+0x36 RtlAllocateActivationContextStack-0xce ntdll+0x39ea5 @ 0x778d9ea5

exception.instruction_r: f3 a5 0b ca 75 05 5f 5e c2 0c 00 f3 a4 5f 5e c2
exception.symbol: RtlMoveMemory+0x1b RtlFindActivationContextSectionGuid-0x270 ntdll+0x63c5b
exception.instruction: movsd dword ptr es:[edi], dword ptr [esi]
exception.module: ntdll.dll
exception.exception_code: 0xc0000005
exception.offset: 408667
exception.address: 0x77903c5b
registers.esp: 1636972
registers.edi: 40763392
registers.eax: 2005941312
registers.ebp: 1637176
registers.edx: 0
registers.ebx: 2725670
registers.esi: 3713295404
registers.ecx: 62
1 0 0
Time & API Arguments Status Return Repeated

NtAllocateVirtualMemory

 process_identifier: 840
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x02520000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 840
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x026e0000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 840
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x026f0000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 840
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x027b0000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 840
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x027c0000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 840
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x027d0000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0
Time & API Arguments Status Return Repeated

NtProtectVirtualMemory

 process_identifier: 840
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x02460000
process_handle: 0xffffffff
1 0 0
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DeepInstinct MALICIOUS
CrowdStrike win/malicious_confidence_100% (W)