Analysis
- max time kernel
167s - max time network
173s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
22/11/2022, 09:07
Static task
static1
Behavioral task
behavioral1
Sample
671cd70c310c3a9f25b36067178a3af2.exe
Resource
win7-20220901-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
671cd70c310c3a9f25b36067178a3af2.exe
Resource
win10v2004-20221111-en
10 signatures
150 seconds
General
- Target 671cd70c310c3a9f25b36067178a3af2.exe
- Size 315KB
- Sample221122-k3a3dsgc86
- SHA256 3f8b187bf2a282a58bf863f10fe7e7d9bf75c4e17db112c7d973139dbfcb0a3f
- MD5 671cd70c310c3a9f25b36067178a3af2
- SHA1 30380b559c58d3d0090ccfc8d464907ffdf40111
- SHA512 a6aa699995ecfccbdb203d40664a7d3f5930d2f58d9cbac5117ae8a7d71f2ffcd2a2a8ffc63332091312cfb25ee7f08d403390fe498e3feca16845de58eecb48
- SSDEEP 6144:+9AEfKvS+Y5Jg/KubQuDsMDmshnkf8+CwbG:eCvmUS6zc8wG
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 2 IoCs
resource yara_rule behavioral2/memory/2120-133-0x0000000000570000-0x0000000000579000-memory.dmp family_smokeloader behavioral2/memory/2120-136-0x0000000000570000-0x0000000000579000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 1 IoCs
pid Process 1844 feffrjb - 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 671cd70c310c3a9f25b36067178a3af2.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 671cd70c310c3a9f25b36067178a3af2.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 671cd70c310c3a9f25b36067178a3af2.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2120 671cd70c310c3a9f25b36067178a3af2.exe 2120 671cd70c310c3a9f25b36067178a3af2.exe 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found 2572 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2572 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2120 671cd70c310c3a9f25b36067178a3af2.exe - Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeShutdownPrivilege 2572 Process not Found Token: SeCreatePagefilePrivilege 2572 Process not Found Token: SeShutdownPrivilege 2572 Process not Found Token: SeCreatePagefilePrivilege 2572 Process not Found Token: SeShutdownPrivilege 2572 Process not Found Token: SeCreatePagefilePrivilege 2572 Process not Found Token: SeShutdownPrivilege 2572 Process not Found Token: SeCreatePagefilePrivilege 2572 Process not Found Token: SeShutdownPrivilege 2572 Process not Found Token: SeCreatePagefilePrivilege 2572 Process not Found Token: SeShutdownPrivilege 2572 Process not Found Token: SeCreatePagefilePrivilege 2572 Process not Found - Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 2572 Process not Found 2572 Process not Found 2572 Process not Found - Suspicious use of SendNotifyMessage 3 IoCs
pid Process 2572 Process not Found 2572 Process not Found 2572 Process not Found
Processes
-
C:\Users\Admin\AppData\Local\Temp\671cd70c310c3a9f25b36067178a3af2.exe"C:\Users\Admin\AppData\Local\Temp\671cd70c310c3a9f25b36067178a3af2.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2120
-
C:\Users\Admin\AppData\Roaming\feffrjbC:\Users\Admin\AppData\Roaming\feffrjb1⤵
- Executes dropped EXE
PID:1844
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\feffrjb
- Size 315KB
- SHA256 3f8b187bf2a282a58bf863f10fe7e7d9bf75c4e17db112c7d973139dbfcb0a3f
- MD5 671cd70c310c3a9f25b36067178a3af2
- SHA1 30380b559c58d3d0090ccfc8d464907ffdf40111
- SHA512 a6aa699995ecfccbdb203d40664a7d3f5930d2f58d9cbac5117ae8a7d71f2ffcd2a2a8ffc63332091312cfb25ee7f08d403390fe498e3feca16845de58eecb48
- SSDEEP 6144:+9AEfKvS+Y5Jg/KubQuDsMDmshnkf8+CwbG:eCvmUS6zc8wG
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\feffrjb
- Size 315KB
- SHA256 3f8b187bf2a282a58bf863f10fe7e7d9bf75c4e17db112c7d973139dbfcb0a3f
- MD5 671cd70c310c3a9f25b36067178a3af2
- SHA1 30380b559c58d3d0090ccfc8d464907ffdf40111
- SHA512 a6aa699995ecfccbdb203d40664a7d3f5930d2f58d9cbac5117ae8a7d71f2ffcd2a2a8ffc63332091312cfb25ee7f08d403390fe498e3feca16845de58eecb48
- SSDEEP 6144:+9AEfKvS+Y5Jg/KubQuDsMDmshnkf8+CwbG:eCvmUS6zc8wG
- MD5 SHA1 SHA512 SSDEEP