Analysis
- max time kernel
150s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
21/09/2022, 14:56
Static task
static1
Behavioral task
behavioral1
Sample
f85fb2aafd0c487971b62235afecc990.exe
Resource
win7-20220812-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
f85fb2aafd0c487971b62235afecc990.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
11 signatures
150 seconds
General
- Target f85fb2aafd0c487971b62235afecc990.exe
- Size 174KB
- Sample220921-sa1fksgee5
- SHA256 c5190c792937cf9e2499fb3aa2bb23514fd710e7c604be1b43dfc3e98de48d6a
- MD5 f85fb2aafd0c487971b62235afecc990
- SHA1 c7f5d38fea6ef78531200640d37d9143cc3bd42f
- SHA512 0e01b6c1f1af06dd00a3919aa2d3dca5dba7de5abeb6939149ecbcbf5a63c4b76211686b40afccfa2caa80f33905a7c6f496b10459dbea2f7fd325f498139b69
- SSDEEP 3072:rtKdSLj5kclPRLSNQ+TRQ2ei44f6N5HBZj/Pk8In:MdSLScXq04f6N
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/3484-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1868-135-0x0000000000710000-0x0000000000719000-memory.dmp family_smokeloader behavioral2/memory/3484-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3484-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1868 set thread context of 3484 1868 f85fb2aafd0c487971b62235afecc990.exe 81 - 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 f85fb2aafd0c487971b62235afecc990.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI f85fb2aafd0c487971b62235afecc990.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI f85fb2aafd0c487971b62235afecc990.exe - Modifies registry class 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3484 f85fb2aafd0c487971b62235afecc990.exe 3484 f85fb2aafd0c487971b62235afecc990.exe 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2640 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3484 f85fb2aafd0c487971b62235afecc990.exe - Suspicious use of AdjustPrivilegeToken 14 IoCs
description pid Process Token: SeShutdownPrivilege 2640 Process not Found Token: SeCreatePagefilePrivilege 2640 Process not Found Token: SeShutdownPrivilege 2640 Process not Found Token: SeCreatePagefilePrivilege 2640 Process not Found Token: SeShutdownPrivilege 2640 Process not Found Token: SeCreatePagefilePrivilege 2640 Process not Found Token: SeShutdownPrivilege 2640 Process not Found Token: SeCreatePagefilePrivilege 2640 Process not Found Token: SeShutdownPrivilege 2640 Process not Found Token: SeCreatePagefilePrivilege 2640 Process not Found Token: SeShutdownPrivilege 2640 Process not Found Token: SeCreatePagefilePrivilege 2640 Process not Found Token: SeShutdownPrivilege 2640 Process not Found Token: SeCreatePagefilePrivilege 2640 Process not Found - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 2640 Process not Found 2640 Process not Found - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1868 wrote to memory of 3484 1868 f85fb2aafd0c487971b62235afecc990.exe 81 PID 1868 wrote to memory of 3484 1868 f85fb2aafd0c487971b62235afecc990.exe 81 PID 1868 wrote to memory of 3484 1868 f85fb2aafd0c487971b62235afecc990.exe 81 PID 1868 wrote to memory of 3484 1868 f85fb2aafd0c487971b62235afecc990.exe 81 PID 1868 wrote to memory of 3484 1868 f85fb2aafd0c487971b62235afecc990.exe 81 PID 1868 wrote to memory of 3484 1868 f85fb2aafd0c487971b62235afecc990.exe 81
Processes
-
C:\Users\Admin\AppData\Local\Temp\f85fb2aafd0c487971b62235afecc990.exe"C:\Users\Admin\AppData\Local\Temp\f85fb2aafd0c487971b62235afecc990.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1868 -
C:\Users\Admin\AppData\Local\Temp\f85fb2aafd0c487971b62235afecc990.exe"C:\Users\Admin\AppData\Local\Temp\f85fb2aafd0c487971b62235afecc990.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:3484
-