Analysis
- max time kernel
150s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
23/12/2022, 03:59
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target file.exe
- Size 316KB
- Sample221223-ej3qeaah6y
- SHA256 5f46bf01628645dc9fc3d656dea1c998d916d2723d85f47eb8fa9132709eab05
- MD5 83004c24dc7325cc4c1a1c4920c1bfae
- SHA1 52887ae28567d88e49e7b4471a1f014c99319407
- SHA512 eac23ff71333809ce9f87749157f02688c53ac71f5004932a0c721dfeb4cc95a6fc27d5b88193bbb119ec1aa13a4a065c76540e3e6e6be320af3430acc010348
- SSDEEP 6144:R2Lmv2KyUzQJPGThtqsRR0cSpQTtyzsduHNIv:R2yv2K3MPGTvqsRR0TCtyYduHNI
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/3204-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1832-135-0x00000000005F0000-0x00000000005F9000-memory.dmp family_smokeloader behavioral2/memory/3204-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3204-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/488-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/488-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 4884 fdgacrb 488 fdgacrb - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1832 set thread context of 3204 1832 file.exe 76 PID 4884 set thread context of 488 4884 fdgacrb 84 - 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 file.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fdgacrb Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fdgacrb Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fdgacrb - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3204 file.exe 3204 file.exe 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2688 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 3204 file.exe 488 fdgacrb - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2688 Process not Found Token: SeCreatePagefilePrivilege 2688 Process not Found - Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 2688 Process not Found 2688 Process not Found 2688 Process not Found - Suspicious use of SendNotifyMessage 3 IoCs
pid Process 2688 Process not Found 2688 Process not Found 2688 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1832 wrote to memory of 3204 1832 file.exe 76 PID 1832 wrote to memory of 3204 1832 file.exe 76 PID 1832 wrote to memory of 3204 1832 file.exe 76 PID 1832 wrote to memory of 3204 1832 file.exe 76 PID 1832 wrote to memory of 3204 1832 file.exe 76 PID 1832 wrote to memory of 3204 1832 file.exe 76 PID 4884 wrote to memory of 488 4884 fdgacrb 84 PID 4884 wrote to memory of 488 4884 fdgacrb 84 PID 4884 wrote to memory of 488 4884 fdgacrb 84 PID 4884 wrote to memory of 488 4884 fdgacrb 84 PID 4884 wrote to memory of 488 4884 fdgacrb 84 PID 4884 wrote to memory of 488 4884 fdgacrb 84
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1832 -
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:3204
-
-
C:\Users\Admin\AppData\Roaming\fdgacrbC:\Users\Admin\AppData\Roaming\fdgacrb1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4884 -
C:\Users\Admin\AppData\Roaming\fdgacrbC:\Users\Admin\AppData\Roaming\fdgacrb2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:488
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\fdgacrb
- Size 316KB
- SHA256 5f46bf01628645dc9fc3d656dea1c998d916d2723d85f47eb8fa9132709eab05
- MD5 83004c24dc7325cc4c1a1c4920c1bfae
- SHA1 52887ae28567d88e49e7b4471a1f014c99319407
- SHA512 eac23ff71333809ce9f87749157f02688c53ac71f5004932a0c721dfeb4cc95a6fc27d5b88193bbb119ec1aa13a4a065c76540e3e6e6be320af3430acc010348
- SSDEEP 6144:R2Lmv2KyUzQJPGThtqsRR0cSpQTtyzsduHNIv:R2yv2K3MPGTvqsRR0TCtyYduHNI
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\fdgacrb
- Size 316KB
- SHA256 5f46bf01628645dc9fc3d656dea1c998d916d2723d85f47eb8fa9132709eab05
- MD5 83004c24dc7325cc4c1a1c4920c1bfae
- SHA1 52887ae28567d88e49e7b4471a1f014c99319407
- SHA512 eac23ff71333809ce9f87749157f02688c53ac71f5004932a0c721dfeb4cc95a6fc27d5b88193bbb119ec1aa13a4a065c76540e3e6e6be320af3430acc010348
- SSDEEP 6144:R2Lmv2KyUzQJPGThtqsRR0cSpQTtyzsduHNIv:R2yv2K3MPGTvqsRR0TCtyYduHNI
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\fdgacrb
- Size 316KB
- SHA256 5f46bf01628645dc9fc3d656dea1c998d916d2723d85f47eb8fa9132709eab05
- MD5 83004c24dc7325cc4c1a1c4920c1bfae
- SHA1 52887ae28567d88e49e7b4471a1f014c99319407
- SHA512 eac23ff71333809ce9f87749157f02688c53ac71f5004932a0c721dfeb4cc95a6fc27d5b88193bbb119ec1aa13a4a065c76540e3e6e6be320af3430acc010348
- SSDEEP 6144:R2Lmv2KyUzQJPGThtqsRR0cSpQTtyzsduHNIv:R2yv2K3MPGTvqsRR0TCtyYduHNI
- MD5 SHA1 SHA512 SSDEEP