Analysis
- max time kernel
147s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system - submitted
17/04/2024, 19:23
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20240319-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
tmp.exe
Resource
win10v2004-20240412-en
8 signatures
150 seconds
General
- Target tmp.exe
- Size 284KB
- Sample240417-x3vs1sbf62
- SHA256 a7f605d4110bba430e02c7c5240e656fb3f1dd7f02dce985e9e5677169c9de55
- MD5 e3dc222d0a34c4b230f538a67bb7265d
- SHA1 d88345aef0e59341e6c4297d2685cb5f08c0aa80
- SHA512 3d775c3c940ddd3d43fa56726ae4f8c0442a4d576cb410e60e2f010e1ff6273a2064f646c6af4a6993ff78924c329ac821811f97402d1472495c1d7a6d838797
- SSDEEP 6144:ukXNoFja9QXwKN1NdR7ws5lDohIiTXcnXzrCZemJPg1ZVzqH:jiFWUtXjDojODrXeIBze
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- PureLog Stealer
PureLog Stealer is an infostealer written in C#.
- PureLog Stealer payload 1 IoCs
resource yara_rule behavioral2/memory/2084-4-0x0000000005D70000-0x0000000005DBA000-memory.dmp family_purelog_stealer - SmokeLoader
Modular backdoor trojan in use since 2014.
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SOCKET5 = "C:\\Users\\Admin\\AppData\\Roaming\\SOCKET5.exe" tmp.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2084 set thread context of 1244 2084 tmp.exe 89 - Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI RegAsm.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI RegAsm.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI RegAsm.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2084 tmp.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2084 wrote to memory of 1244 2084 tmp.exe 89 PID 2084 wrote to memory of 1244 2084 tmp.exe 89 PID 2084 wrote to memory of 1244 2084 tmp.exe 89 PID 2084 wrote to memory of 1244 2084 tmp.exe 89 PID 2084 wrote to memory of 1244 2084 tmp.exe 89 PID 2084 wrote to memory of 1244 2084 tmp.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2084 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe2⤵
- Checks SCSI registry key(s)
PID:1244
-