Analysis
- max time kernel
151s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
16/12/2022, 18:09
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target file.exe
- Size 214KB
- Sample221216-wrfdhsfb89
- SHA256 f74dd5fa6d702e49c5015da44a611dade59605d2eed0438c5fa58b189a27bbf7
- MD5 2a7d73ee42b1c0d4669cc81800c605f5
- SHA1 d9d66291ca43d0d45914f3e034ad7b32ed106978
- SHA512 00e355afc78cc0dbc4675d7773f6e05fee00f444a6318a0b95907440eae49b771502d53720a3952da1bbc06128dffbcf2dce5eac258a2794f683c4724ff58ec7
- SSDEEP 3072:MJquEydLmyjD0RErZahFyI81VCv60LszWVaNx40zwUzQRKF+:gq78LnjHrmk1U60gzVx40M2b
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/4772-133-0x00000000001F0000-0x00000000001F9000-memory.dmp family_smokeloader behavioral2/memory/2892-135-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2892-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2892-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1152-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1152-146-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 4156 rgicdvu 1152 rgicdvu - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4772 set thread context of 2892 4772 file.exe 79 PID 4156 set thread context of 1152 4156 rgicdvu 89 - Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI rgicdvu Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI rgicdvu Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI rgicdvu Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2892 file.exe 2892 file.exe 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3060 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2892 file.exe 1152 rgicdvu - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 3060 Process not Found Token: SeCreatePagefilePrivilege 3060 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4772 wrote to memory of 2892 4772 file.exe 79 PID 4772 wrote to memory of 2892 4772 file.exe 79 PID 4772 wrote to memory of 2892 4772 file.exe 79 PID 4772 wrote to memory of 2892 4772 file.exe 79 PID 4772 wrote to memory of 2892 4772 file.exe 79 PID 4772 wrote to memory of 2892 4772 file.exe 79 PID 4156 wrote to memory of 1152 4156 rgicdvu 89 PID 4156 wrote to memory of 1152 4156 rgicdvu 89 PID 4156 wrote to memory of 1152 4156 rgicdvu 89 PID 4156 wrote to memory of 1152 4156 rgicdvu 89 PID 4156 wrote to memory of 1152 4156 rgicdvu 89 PID 4156 wrote to memory of 1152 4156 rgicdvu 89
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:4772 -
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:2892
-
-
C:\Users\Admin\AppData\Roaming\rgicdvuC:\Users\Admin\AppData\Roaming\rgicdvu1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4156 -
C:\Users\Admin\AppData\Roaming\rgicdvuC:\Users\Admin\AppData\Roaming\rgicdvu2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:1152
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\rgicdvu
- Size 214KB
- SHA256 f74dd5fa6d702e49c5015da44a611dade59605d2eed0438c5fa58b189a27bbf7
- MD5 2a7d73ee42b1c0d4669cc81800c605f5
- SHA1 d9d66291ca43d0d45914f3e034ad7b32ed106978
- SHA512 00e355afc78cc0dbc4675d7773f6e05fee00f444a6318a0b95907440eae49b771502d53720a3952da1bbc06128dffbcf2dce5eac258a2794f683c4724ff58ec7
- SSDEEP 3072:MJquEydLmyjD0RErZahFyI81VCv60LszWVaNx40zwUzQRKF+:gq78LnjHrmk1U60gzVx40M2b
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\rgicdvu
- Size 214KB
- SHA256 f74dd5fa6d702e49c5015da44a611dade59605d2eed0438c5fa58b189a27bbf7
- MD5 2a7d73ee42b1c0d4669cc81800c605f5
- SHA1 d9d66291ca43d0d45914f3e034ad7b32ed106978
- SHA512 00e355afc78cc0dbc4675d7773f6e05fee00f444a6318a0b95907440eae49b771502d53720a3952da1bbc06128dffbcf2dce5eac258a2794f683c4724ff58ec7
- SSDEEP 3072:MJquEydLmyjD0RErZahFyI81VCv60LszWVaNx40zwUzQRKF+:gq78LnjHrmk1U60gzVx40M2b
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\rgicdvu
- Size 214KB
- SHA256 f74dd5fa6d702e49c5015da44a611dade59605d2eed0438c5fa58b189a27bbf7
- MD5 2a7d73ee42b1c0d4669cc81800c605f5
- SHA1 d9d66291ca43d0d45914f3e034ad7b32ed106978
- SHA512 00e355afc78cc0dbc4675d7773f6e05fee00f444a6318a0b95907440eae49b771502d53720a3952da1bbc06128dffbcf2dce5eac258a2794f683c4724ff58ec7
- SSDEEP 3072:MJquEydLmyjD0RErZahFyI81VCv60LszWVaNx40zwUzQRKF+:gq78LnjHrmk1U60gzVx40M2b
- MD5 SHA1 SHA512 SSDEEP