Analysis
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max time kernel
155s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
14-03-2024 11:38
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/1956-4-0x0000000005FD0000-0x000000000601A000-memory.dmp family_purelog_stealer -
SmokeLoader
Modular backdoor trojan in use since 2014.
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Executes dropped EXE 1 IoCs
Processes:
fjtuvrjpid process 3332 fjtuvrj -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
tmp.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\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 1956 set thread context of 1252 1956 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 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 behavior: EnumeratesProcesses 64 IoCs
Processes:
tmp.exeRegAsm.exepid process 1956 tmp.exe 1956 tmp.exe 1956 tmp.exe 1956 tmp.exe 1252 RegAsm.exe 1252 RegAsm.exe 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 3164 -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
RegAsm.exepid process 1252 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 9 IoCs
Processes:
tmp.exedescription pid process Token: SeDebugPrivilege 1956 tmp.exe Token: SeShutdownPrivilege 3164 Token: SeCreatePagefilePrivilege 3164 Token: SeShutdownPrivilege 3164 Token: SeCreatePagefilePrivilege 3164 Token: SeShutdownPrivilege 3164 Token: SeCreatePagefilePrivilege 3164 Token: SeShutdownPrivilege 3164 Token: SeCreatePagefilePrivilege 3164 -
Suspicious use of UnmapMainImage 1 IoCs
Processes:
pid process 3164 -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
tmp.exedescription pid process target process PID 1956 wrote to memory of 4192 1956 tmp.exe RegAsm.exe PID 1956 wrote to memory of 4192 1956 tmp.exe RegAsm.exe PID 1956 wrote to memory of 4192 1956 tmp.exe RegAsm.exe PID 1956 wrote to memory of 1176 1956 tmp.exe RegAsm.exe PID 1956 wrote to memory of 1176 1956 tmp.exe RegAsm.exe PID 1956 wrote to memory of 1176 1956 tmp.exe RegAsm.exe PID 1956 wrote to memory of 1252 1956 tmp.exe RegAsm.exe PID 1956 wrote to memory of 1252 1956 tmp.exe RegAsm.exe PID 1956 wrote to memory of 1252 1956 tmp.exe RegAsm.exe PID 1956 wrote to memory of 1252 1956 tmp.exe RegAsm.exe PID 1956 wrote to memory of 1252 1956 tmp.exe RegAsm.exe PID 1956 wrote to memory of 1252 1956 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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1956 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe2⤵PID:4192
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe2⤵PID:1176
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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:1252
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4168 --field-trial-handle=2236,i,5367110156796017614,12594004256180761011,262144 --variations-seed-version /prefetch:81⤵PID:4956
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C:\Users\Admin\AppData\Roaming\fjtuvrjC:\Users\Admin\AppData\Roaming\fjtuvrj1⤵
- Executes dropped EXE
PID:3332
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
63KB
MD50d5df43af2916f47d00c1573797c1a13
SHA1230ab5559e806574d26b4c20847c368ed55483b0
SHA256c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc
SHA512f96cf9e1890746b12daf839a6d0f16f062b72c1b8a40439f96583f242980f10f867720232a6fa0f7d4d7ac0a7a6143981a5a130d6417ea98b181447134c7cfe2