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Analysis
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max time kernel
300s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20231020-en -
resource tags
arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system -
submitted
22/10/2023, 22:25
Static task
static1
Behavioral task
behavioral1
Sample
c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe
Resource
win10-20231020-en
General
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Target
c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe
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Size
180KB
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MD5
f4e75c531a041e9c7de6fd603b6b20cf
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SHA1
3c133d66d030c1714e9dda13ccaf115e0f3b11a0
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SHA256
c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234
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SHA512
984bb16cdf21f639da65266415d38d1640c0a60445842c58e06a23fff67dc7e12a6c146d717802a221123c0745887e414331317696ef0771ae7775134dd4ada1
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SSDEEP
3072:vyBN6fxr6AgsSrXxq2phoPEFpbZYXdsLIKFyQX:+A+Ag/rX82pCPIadDK
Malware Config
Extracted
smokeloader
up3
Extracted
smokeloader
2020
http://host-file-host6.com/
http://host-host-file8.com/
Signatures
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Deletes itself 1 IoCs
pid Process 1392 Process not Found -
Executes dropped EXE 2 IoCs
pid Process 2760 tjuedrv 2680 tjuedrv -
Loads dropped DLL 1 IoCs
pid Process 2760 tjuedrv -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2412 set thread context of 2184 2412 c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe 28 PID 2760 set thread context of 2680 2760 tjuedrv 33 -
Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI tjuedrv Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI tjuedrv Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI tjuedrv -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2184 c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe 2184 c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found 1392 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1392 Process not Found -
Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2184 c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe 2680 tjuedrv -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeShutdownPrivilege 1392 Process not Found -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 2412 wrote to memory of 2184 2412 c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe 28 PID 2412 wrote to memory of 2184 2412 c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe 28 PID 2412 wrote to memory of 2184 2412 c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe 28 PID 2412 wrote to memory of 2184 2412 c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe 28 PID 2412 wrote to memory of 2184 2412 c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe 28 PID 2412 wrote to memory of 2184 2412 c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe 28 PID 2412 wrote to memory of 2184 2412 c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe 28 PID 2672 wrote to memory of 2760 2672 taskeng.exe 32 PID 2672 wrote to memory of 2760 2672 taskeng.exe 32 PID 2672 wrote to memory of 2760 2672 taskeng.exe 32 PID 2672 wrote to memory of 2760 2672 taskeng.exe 32 PID 2760 wrote to memory of 2680 2760 tjuedrv 33 PID 2760 wrote to memory of 2680 2760 tjuedrv 33 PID 2760 wrote to memory of 2680 2760 tjuedrv 33 PID 2760 wrote to memory of 2680 2760 tjuedrv 33 PID 2760 wrote to memory of 2680 2760 tjuedrv 33 PID 2760 wrote to memory of 2680 2760 tjuedrv 33 PID 2760 wrote to memory of 2680 2760 tjuedrv 33
Processes
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C:\Users\Admin\AppData\Local\Temp\c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe"C:\Users\Admin\AppData\Local\Temp\c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2412 -
C:\Users\Admin\AppData\Local\Temp\c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe"C:\Users\Admin\AppData\Local\Temp\c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2184
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C:\Windows\system32\taskeng.exetaskeng.exe {16BCBD70-A94A-483D-9DFE-7EC546A53100} S-1-5-21-3837739534-3148647840-3445085216-1000:RBHOAWCN\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:2672 -
C:\Users\Admin\AppData\Roaming\tjuedrvC:\Users\Admin\AppData\Roaming\tjuedrv2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2760 -
C:\Users\Admin\AppData\Roaming\tjuedrvC:\Users\Admin\AppData\Roaming\tjuedrv3⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2680
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
180KB
MD5f4e75c531a041e9c7de6fd603b6b20cf
SHA13c133d66d030c1714e9dda13ccaf115e0f3b11a0
SHA256c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234
SHA512984bb16cdf21f639da65266415d38d1640c0a60445842c58e06a23fff67dc7e12a6c146d717802a221123c0745887e414331317696ef0771ae7775134dd4ada1
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Filesize
180KB
MD5f4e75c531a041e9c7de6fd603b6b20cf
SHA13c133d66d030c1714e9dda13ccaf115e0f3b11a0
SHA256c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234
SHA512984bb16cdf21f639da65266415d38d1640c0a60445842c58e06a23fff67dc7e12a6c146d717802a221123c0745887e414331317696ef0771ae7775134dd4ada1
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Filesize
180KB
MD5f4e75c531a041e9c7de6fd603b6b20cf
SHA13c133d66d030c1714e9dda13ccaf115e0f3b11a0
SHA256c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234
SHA512984bb16cdf21f639da65266415d38d1640c0a60445842c58e06a23fff67dc7e12a6c146d717802a221123c0745887e414331317696ef0771ae7775134dd4ada1
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Filesize
180KB
MD5f4e75c531a041e9c7de6fd603b6b20cf
SHA13c133d66d030c1714e9dda13ccaf115e0f3b11a0
SHA256c66e4b57d2c218eb636b84b1b25324a341e88501718c3679cb5241479f8a5234
SHA512984bb16cdf21f639da65266415d38d1640c0a60445842c58e06a23fff67dc7e12a6c146d717802a221123c0745887e414331317696ef0771ae7775134dd4ada1