Analysis
- max time kernel
147s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20240419-en - resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system - submitted
29/04/2024, 01:06
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe
Resource
win7-20240221-en
72 signatures
150 seconds
Behavioral task
behavioral2
Sample
1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe
Resource
win10v2004-20240419-en
6 signatures
150 seconds
General
- Target 1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe
- Size 386KB
- Sample240429-bf4xhsdf57
- SHA256 1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc
- MD5 0c4043a9a9efff20810530fd0cad91d7
- SHA1 ca3adc7e4f1a027a2969749ccd5e2c1b06b88162
- SHA512 e5cb239c051ad141a56ca464be8068cebdc58029e39bc2d31495b27a5267604748f590397c2269d01b42f07af5a8840c8d3b339f4f042db165bd9c023a332d17
- SSDEEP 12288:J6zu3pBE2tnPIuE2nGewVMGrNRdb2KZkfgV3:Izu3pBE2tnP3nGBeGHkKZkO
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Detects executables (downlaoders) containing URLs to raw contents of a paste 1 IoCs
resource yara_rule behavioral2/memory/4972-5-0x0000000000400000-0x0000000000408000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RawPaste_URL - Detects executables packed with or use KoiVM 1 IoCs
resource yara_rule behavioral2/memory/4084-4-0x0000021A6B330000-0x0000021A6B38E000-memory.dmp INDICATOR_EXE_Packed_KoiVM - Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs
flow ioc 4 pastebin.com - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4084 set thread context of 4972 4084 1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe 88 - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4972 regsvcs.exe - Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4084 wrote to memory of 2768 4084 1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe 87 PID 4084 wrote to memory of 2768 4084 1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe 87 PID 4084 wrote to memory of 2768 4084 1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe 87 PID 4084 wrote to memory of 4972 4084 1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe 88 PID 4084 wrote to memory of 4972 4084 1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe 88 PID 4084 wrote to memory of 4972 4084 1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe 88 PID 4084 wrote to memory of 4972 4084 1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe 88 PID 4084 wrote to memory of 4972 4084 1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe 88 PID 4084 wrote to memory of 4972 4084 1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe 88 PID 4084 wrote to memory of 4972 4084 1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe 88 PID 4084 wrote to memory of 4972 4084 1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe 88 PID 4084 wrote to memory of 456 4084 1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe 89 PID 4084 wrote to memory of 456 4084 1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe 89 PID 4084 wrote to memory of 456 4084 1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe"C:\Users\Admin\AppData\Local\Temp\1153b99ea7a217692d63ef2c95b61f9b781862793ed5cdff3f53f0b43d9c8ccc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4084 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"2⤵PID:2768
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4972
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"2⤵PID:456
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