Analysis
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max time kernel
150s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
13-03-2024 03:17
Static task
static1
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
tmp.exe
Resource
win10v2004-20240226-en
General
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Target
tmp.exe
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Size
284KB
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MD5
e3dc222d0a34c4b230f538a67bb7265d
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SHA1
d88345aef0e59341e6c4297d2685cb5f08c0aa80
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SHA256
a7f605d4110bba430e02c7c5240e656fb3f1dd7f02dce985e9e5677169c9de55
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SHA512
3d775c3c940ddd3d43fa56726ae4f8c0442a4d576cb410e60e2f010e1ff6273a2064f646c6af4a6993ff78924c329ac821811f97402d1472495c1d7a6d838797
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SSDEEP
6144:ukXNoFja9QXwKN1NdR7ws5lDohIiTXcnXzrCZemJPg1ZVzqH:jiFWUtXjDojODrXeIBze
Malware Config
Extracted
smokeloader
2022
http://glueberry-og.cc/
http://glueberry-og.co/
http://glueberry-og.to/
Signatures
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PureLog Stealer
PureLog Stealer is an infostealer written in C#.
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PureLog Stealer payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2816-4-0x00000000061A0000-0x00000000061EA000-memory.dmp family_purelog_stealer -
SmokeLoader
Modular backdoor trojan in use since 2014.
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
tmp.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SOCKET5 = "C:\\Users\\Admin\\AppData\\Roaming\\SOCKET5.exe" tmp.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
tmp.exedescription pid process target process PID 2816 set thread context of 872 2816 tmp.exe RegAsm.exe -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
RegAsm.exedescription ioc process Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI RegAsm.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI RegAsm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI RegAsm.exe -
Modifies registry class 2 IoCs
Processes:
description ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Key created \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
RegAsm.exepid process 872 RegAsm.exe 872 RegAsm.exe 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 3368 -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
RegAsm.exepid process 872 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
tmp.exedescription pid process Token: SeDebugPrivilege 2816 tmp.exe Token: SeShutdownPrivilege 3368 Token: SeCreatePagefilePrivilege 3368 Token: SeShutdownPrivilege 3368 Token: SeCreatePagefilePrivilege 3368 -
Suspicious use of UnmapMainImage 1 IoCs
Processes:
pid process 3368 -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
tmp.exedescription pid process target process PID 2816 wrote to memory of 872 2816 tmp.exe RegAsm.exe PID 2816 wrote to memory of 872 2816 tmp.exe RegAsm.exe PID 2816 wrote to memory of 872 2816 tmp.exe RegAsm.exe PID 2816 wrote to memory of 872 2816 tmp.exe RegAsm.exe PID 2816 wrote to memory of 872 2816 tmp.exe RegAsm.exe PID 2816 wrote to memory of 872 2816 tmp.exe RegAsm.exe -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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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:2816 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:872