Analysis
- max time kernel
150s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
18/09/2022, 00:38
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
windows7-x64
7 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 291KB
- Sample220918-ay2pfaeear
- SHA256 34df8bcb878502d56964c327a5a3a0c0fbf56cd50f7cc34f7aed8f36a8983691
- MD5 778f6cf67b9ee83099a6d8f417f5c194
- SHA1 3dedad787585e3c35081034c6f98ea62d4e4cfaf
- SHA512 a8b438e9df7fbc9d99653f5b0438080fdfee8cb0250ff336677b6d7e8a76f14d32433f017a745f2d145adcc1d54bf016b1b52a232718e92ff5fe6126daa84277
- SSDEEP 6144:VsVLmCtgtDBDKUYPXqrA06sDnigabwVf:VsVSCtSRm/cLDi
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/3532-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4700-135-0x0000000002180000-0x0000000002189000-memory.dmp family_smokeloader behavioral2/memory/3532-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3532-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2180-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2180-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 2540 dsaaufu 2180 dsaaufu - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4700 set thread context of 3532 4700 file.exe 80 PID 2540 set thread context of 2180 2540 dsaaufu 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 dsaaufu Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI dsaaufu Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI dsaaufu 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 3532 file.exe 3532 file.exe 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found 2484 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2484 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 3532 file.exe 2180 dsaaufu - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2484 Process not Found Token: SeCreatePagefilePrivilege 2484 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4700 wrote to memory of 3532 4700 file.exe 80 PID 4700 wrote to memory of 3532 4700 file.exe 80 PID 4700 wrote to memory of 3532 4700 file.exe 80 PID 4700 wrote to memory of 3532 4700 file.exe 80 PID 4700 wrote to memory of 3532 4700 file.exe 80 PID 4700 wrote to memory of 3532 4700 file.exe 80 PID 2540 wrote to memory of 2180 2540 dsaaufu 89 PID 2540 wrote to memory of 2180 2540 dsaaufu 89 PID 2540 wrote to memory of 2180 2540 dsaaufu 89 PID 2540 wrote to memory of 2180 2540 dsaaufu 89 PID 2540 wrote to memory of 2180 2540 dsaaufu 89 PID 2540 wrote to memory of 2180 2540 dsaaufu 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:4700 -
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:3532
-
-
C:\Users\Admin\AppData\Roaming\dsaaufuC:\Users\Admin\AppData\Roaming\dsaaufu1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2540 -
C:\Users\Admin\AppData\Roaming\dsaaufuC:\Users\Admin\AppData\Roaming\dsaaufu2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2180
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\dsaaufu
- Size 291KB
- SHA256 34df8bcb878502d56964c327a5a3a0c0fbf56cd50f7cc34f7aed8f36a8983691
- MD5 778f6cf67b9ee83099a6d8f417f5c194
- SHA1 3dedad787585e3c35081034c6f98ea62d4e4cfaf
- SHA512 a8b438e9df7fbc9d99653f5b0438080fdfee8cb0250ff336677b6d7e8a76f14d32433f017a745f2d145adcc1d54bf016b1b52a232718e92ff5fe6126daa84277
- SSDEEP 6144:VsVLmCtgtDBDKUYPXqrA06sDnigabwVf:VsVSCtSRm/cLDi
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\dsaaufu
- Size 291KB
- SHA256 34df8bcb878502d56964c327a5a3a0c0fbf56cd50f7cc34f7aed8f36a8983691
- MD5 778f6cf67b9ee83099a6d8f417f5c194
- SHA1 3dedad787585e3c35081034c6f98ea62d4e4cfaf
- SHA512 a8b438e9df7fbc9d99653f5b0438080fdfee8cb0250ff336677b6d7e8a76f14d32433f017a745f2d145adcc1d54bf016b1b52a232718e92ff5fe6126daa84277
- SSDEEP 6144:VsVLmCtgtDBDKUYPXqrA06sDnigabwVf:VsVSCtSRm/cLDi
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\dsaaufu
- Size 291KB
- SHA256 34df8bcb878502d56964c327a5a3a0c0fbf56cd50f7cc34f7aed8f36a8983691
- MD5 778f6cf67b9ee83099a6d8f417f5c194
- SHA1 3dedad787585e3c35081034c6f98ea62d4e4cfaf
- SHA512 a8b438e9df7fbc9d99653f5b0438080fdfee8cb0250ff336677b6d7e8a76f14d32433f017a745f2d145adcc1d54bf016b1b52a232718e92ff5fe6126daa84277
- SSDEEP 6144:VsVLmCtgtDBDKUYPXqrA06sDnigabwVf:VsVSCtSRm/cLDi
- MD5 SHA1 SHA512 SSDEEP