Analysis
- max time kernel
151s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
13/12/2022, 11:19
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 315KB
- Sample221213-net25shc3w
- SHA256 e2acdf0dfaa059dada228986afcc1e5258ed0ac0916ba02c77c529a9e1e0e1e8
- MD5 07ed248b87b5e73e8ec783f0740b66f0
- SHA1 93dac54d3c10a8881d7e5359f5ba63ed9ed79d99
- SHA512 d32112f304ce59d64f0b085dd4d5db2ac354aa8ba6ea078cd345e60977d13266ba5fdd7cc76f6a4a1bd6d6d3231c61eaf14a61b01b5f78a97e467b4c021f07fe
- SSDEEP 6144:iGjtYNCLSacBwBITU7ehAk81n8teErW8BYQbFfNXSDw:jrWacyBR7ehAkpBrXBYeF1X4w
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/1264-133-0x00000000004D0000-0x00000000004D9000-memory.dmp family_smokeloader behavioral2/memory/1600-135-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1600-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1600-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4228-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4228-146-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 3084 tjcvrct 4228 tjcvrct - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1264 set thread context of 1600 1264 file.exe 81 PID 3084 set thread context of 4228 3084 tjcvrct 90 - 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 tjcvrct Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI tjcvrct Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI tjcvrct 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 - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1600 file.exe 1600 file.exe 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found 3048 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3048 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 1600 file.exe 4228 tjcvrct - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 3048 Process not Found Token: SeCreatePagefilePrivilege 3048 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1264 wrote to memory of 1600 1264 file.exe 81 PID 1264 wrote to memory of 1600 1264 file.exe 81 PID 1264 wrote to memory of 1600 1264 file.exe 81 PID 1264 wrote to memory of 1600 1264 file.exe 81 PID 1264 wrote to memory of 1600 1264 file.exe 81 PID 1264 wrote to memory of 1600 1264 file.exe 81 PID 3084 wrote to memory of 4228 3084 tjcvrct 90 PID 3084 wrote to memory of 4228 3084 tjcvrct 90 PID 3084 wrote to memory of 4228 3084 tjcvrct 90 PID 3084 wrote to memory of 4228 3084 tjcvrct 90 PID 3084 wrote to memory of 4228 3084 tjcvrct 90 PID 3084 wrote to memory of 4228 3084 tjcvrct 90
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:1264 -
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:1600
-
-
C:\Users\Admin\AppData\Roaming\tjcvrctC:\Users\Admin\AppData\Roaming\tjcvrct1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3084 -
C:\Users\Admin\AppData\Roaming\tjcvrctC:\Users\Admin\AppData\Roaming\tjcvrct2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:4228
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Roaming\tjcvrct
- Size 315KB
- SHA256 e2acdf0dfaa059dada228986afcc1e5258ed0ac0916ba02c77c529a9e1e0e1e8
- MD5 07ed248b87b5e73e8ec783f0740b66f0
- SHA1 93dac54d3c10a8881d7e5359f5ba63ed9ed79d99
- SHA512 d32112f304ce59d64f0b085dd4d5db2ac354aa8ba6ea078cd345e60977d13266ba5fdd7cc76f6a4a1bd6d6d3231c61eaf14a61b01b5f78a97e467b4c021f07fe
- SSDEEP 6144:iGjtYNCLSacBwBITU7ehAk81n8teErW8BYQbFfNXSDw:jrWacyBR7ehAkpBrXBYeF1X4w
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\tjcvrct
- Size 315KB
- SHA256 e2acdf0dfaa059dada228986afcc1e5258ed0ac0916ba02c77c529a9e1e0e1e8
- MD5 07ed248b87b5e73e8ec783f0740b66f0
- SHA1 93dac54d3c10a8881d7e5359f5ba63ed9ed79d99
- SHA512 d32112f304ce59d64f0b085dd4d5db2ac354aa8ba6ea078cd345e60977d13266ba5fdd7cc76f6a4a1bd6d6d3231c61eaf14a61b01b5f78a97e467b4c021f07fe
- SSDEEP 6144:iGjtYNCLSacBwBITU7ehAk81n8teErW8BYQbFfNXSDw:jrWacyBR7ehAkpBrXBYeF1X4w
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\tjcvrct
- Size 315KB
- SHA256 e2acdf0dfaa059dada228986afcc1e5258ed0ac0916ba02c77c529a9e1e0e1e8
- MD5 07ed248b87b5e73e8ec783f0740b66f0
- SHA1 93dac54d3c10a8881d7e5359f5ba63ed9ed79d99
- SHA512 d32112f304ce59d64f0b085dd4d5db2ac354aa8ba6ea078cd345e60977d13266ba5fdd7cc76f6a4a1bd6d6d3231c61eaf14a61b01b5f78a97e467b4c021f07fe
- SSDEEP 6144:iGjtYNCLSacBwBITU7ehAk81n8teErW8BYQbFfNXSDw:jrWacyBR7ehAkpBrXBYeF1X4w
- MD5 SHA1 SHA512 SSDEEP