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
20/01/2023, 18:59
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-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 334KB
- Sample230120-xm4e8abb9z
- SHA256 637d0ec679cce5e522e5d94ac76fb85f42a1a068e9d9db5c522ce9fec122f975
- MD5 4f4a06ffbe1ca87ec089511fd3b3454f
- SHA1 e53971d64f64162a87993142e83deab8fee6d67c
- SHA512 046ccbde3d568dfe21f9ac01cd8aafc1ac5b0aaf814a90cd528887458fbbb1bc690e4e158278cfcf7f8bc7aee0547a5043fcce3a2d801e46103f869158c57321
- SSDEEP 6144:XL2LY1/od9Wh+Dbwtv1gqlbgCoZsBu+OD:X6LGCqKwtxlbg6uZ
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/4368-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4956-135-0x00000000004E0000-0x00000000004E9000-memory.dmp family_smokeloader behavioral2/memory/4368-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4368-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3468-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3468-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 3516 ffhvtss 3468 ffhvtss - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4956 set thread context of 4368 4956 file.exe 83 PID 3516 set thread context of 3468 3516 ffhvtss 92 - 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 file.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI ffhvtss Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI ffhvtss Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI ffhvtss - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4368 file.exe 4368 file.exe 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found 992 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 992 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 4368 file.exe 3468 ffhvtss - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 992 Process not Found Token: SeCreatePagefilePrivilege 992 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4956 wrote to memory of 4368 4956 file.exe 83 PID 4956 wrote to memory of 4368 4956 file.exe 83 PID 4956 wrote to memory of 4368 4956 file.exe 83 PID 4956 wrote to memory of 4368 4956 file.exe 83 PID 4956 wrote to memory of 4368 4956 file.exe 83 PID 4956 wrote to memory of 4368 4956 file.exe 83 PID 3516 wrote to memory of 3468 3516 ffhvtss 92 PID 3516 wrote to memory of 3468 3516 ffhvtss 92 PID 3516 wrote to memory of 3468 3516 ffhvtss 92 PID 3516 wrote to memory of 3468 3516 ffhvtss 92 PID 3516 wrote to memory of 3468 3516 ffhvtss 92 PID 3516 wrote to memory of 3468 3516 ffhvtss 92
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:4956 -
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:4368
-
-
C:\Users\Admin\AppData\Roaming\ffhvtssC:\Users\Admin\AppData\Roaming\ffhvtss1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3516 -
C:\Users\Admin\AppData\Roaming\ffhvtssC:\Users\Admin\AppData\Roaming\ffhvtss2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:3468
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\ffhvtss
- Size 334KB
- SHA256 637d0ec679cce5e522e5d94ac76fb85f42a1a068e9d9db5c522ce9fec122f975
- MD5 4f4a06ffbe1ca87ec089511fd3b3454f
- SHA1 e53971d64f64162a87993142e83deab8fee6d67c
- SHA512 046ccbde3d568dfe21f9ac01cd8aafc1ac5b0aaf814a90cd528887458fbbb1bc690e4e158278cfcf7f8bc7aee0547a5043fcce3a2d801e46103f869158c57321
- SSDEEP 6144:XL2LY1/od9Wh+Dbwtv1gqlbgCoZsBu+OD:X6LGCqKwtxlbg6uZ
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\ffhvtss
- Size 334KB
- SHA256 637d0ec679cce5e522e5d94ac76fb85f42a1a068e9d9db5c522ce9fec122f975
- MD5 4f4a06ffbe1ca87ec089511fd3b3454f
- SHA1 e53971d64f64162a87993142e83deab8fee6d67c
- SHA512 046ccbde3d568dfe21f9ac01cd8aafc1ac5b0aaf814a90cd528887458fbbb1bc690e4e158278cfcf7f8bc7aee0547a5043fcce3a2d801e46103f869158c57321
- SSDEEP 6144:XL2LY1/od9Wh+Dbwtv1gqlbgCoZsBu+OD:X6LGCqKwtxlbg6uZ
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\ffhvtss
- Size 334KB
- SHA256 637d0ec679cce5e522e5d94ac76fb85f42a1a068e9d9db5c522ce9fec122f975
- MD5 4f4a06ffbe1ca87ec089511fd3b3454f
- SHA1 e53971d64f64162a87993142e83deab8fee6d67c
- SHA512 046ccbde3d568dfe21f9ac01cd8aafc1ac5b0aaf814a90cd528887458fbbb1bc690e4e158278cfcf7f8bc7aee0547a5043fcce3a2d801e46103f869158c57321
- SSDEEP 6144:XL2LY1/od9Wh+Dbwtv1gqlbgCoZsBu+OD:X6LGCqKwtxlbg6uZ
- MD5 SHA1 SHA512 SSDEEP