Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
14/12/2022, 01:39
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 259KB
- Sample221214-b2yydsha64
- SHA256 2a99354fb193d1f903e2c4a018d17a89b10ef4d27c52e13a37bea4409cf31afa
- MD5 d15eed5f6ac5d3cc95de13046ea60775
- SHA1 e16fcf7a973c8824ff81695b4f0fb87cdb15af03
- SHA512 df5e681fd4c7bf4adcd7ebd33bd881cf7bdc757e124138084261697c04c65a02befb3764a2835688de5c8248002712b14c9096e1403b77b3a6261eccf249cb10
- SSDEEP 3072:BR3ZDQL2eirvJi2qaswuaQsiAddz6K1vgL1Ae/UfVT5malxNy8bGbQ/E1PujKdpW:TCLq5B87KdPGRAe/UY8btow
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/868-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3140-135-0x0000000002180000-0x0000000002189000-memory.dmp family_smokeloader behavioral2/memory/868-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/868-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4716-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4716-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 4936 hahjgfb 4716 hahjgfb - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3140 set thread context of 868 3140 file.exe 79 PID 4936 set thread context of 4716 4936 hahjgfb 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 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 hahjgfb Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI hahjgfb Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI hahjgfb - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 868 file.exe 868 file.exe 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3052 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 868 file.exe 4716 hahjgfb - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 3052 Process not Found Token: SeCreatePagefilePrivilege 3052 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3140 wrote to memory of 868 3140 file.exe 79 PID 3140 wrote to memory of 868 3140 file.exe 79 PID 3140 wrote to memory of 868 3140 file.exe 79 PID 3140 wrote to memory of 868 3140 file.exe 79 PID 3140 wrote to memory of 868 3140 file.exe 79 PID 3140 wrote to memory of 868 3140 file.exe 79 PID 4936 wrote to memory of 4716 4936 hahjgfb 89 PID 4936 wrote to memory of 4716 4936 hahjgfb 89 PID 4936 wrote to memory of 4716 4936 hahjgfb 89 PID 4936 wrote to memory of 4716 4936 hahjgfb 89 PID 4936 wrote to memory of 4716 4936 hahjgfb 89 PID 4936 wrote to memory of 4716 4936 hahjgfb 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:3140 -
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:868
-
-
C:\Users\Admin\AppData\Roaming\hahjgfbC:\Users\Admin\AppData\Roaming\hahjgfb1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4936 -
C:\Users\Admin\AppData\Roaming\hahjgfbC:\Users\Admin\AppData\Roaming\hahjgfb2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:4716
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\hahjgfb
- Size 259KB
- SHA256 2a99354fb193d1f903e2c4a018d17a89b10ef4d27c52e13a37bea4409cf31afa
- MD5 d15eed5f6ac5d3cc95de13046ea60775
- SHA1 e16fcf7a973c8824ff81695b4f0fb87cdb15af03
- SHA512 df5e681fd4c7bf4adcd7ebd33bd881cf7bdc757e124138084261697c04c65a02befb3764a2835688de5c8248002712b14c9096e1403b77b3a6261eccf249cb10
- SSDEEP 3072:BR3ZDQL2eirvJi2qaswuaQsiAddz6K1vgL1Ae/UfVT5malxNy8bGbQ/E1PujKdpW:TCLq5B87KdPGRAe/UY8btow
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\hahjgfb
- Size 259KB
- SHA256 2a99354fb193d1f903e2c4a018d17a89b10ef4d27c52e13a37bea4409cf31afa
- MD5 d15eed5f6ac5d3cc95de13046ea60775
- SHA1 e16fcf7a973c8824ff81695b4f0fb87cdb15af03
- SHA512 df5e681fd4c7bf4adcd7ebd33bd881cf7bdc757e124138084261697c04c65a02befb3764a2835688de5c8248002712b14c9096e1403b77b3a6261eccf249cb10
- SSDEEP 3072:BR3ZDQL2eirvJi2qaswuaQsiAddz6K1vgL1Ae/UfVT5malxNy8bGbQ/E1PujKdpW:TCLq5B87KdPGRAe/UY8btow
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\hahjgfb
- Size 259KB
- SHA256 2a99354fb193d1f903e2c4a018d17a89b10ef4d27c52e13a37bea4409cf31afa
- MD5 d15eed5f6ac5d3cc95de13046ea60775
- SHA1 e16fcf7a973c8824ff81695b4f0fb87cdb15af03
- SHA512 df5e681fd4c7bf4adcd7ebd33bd881cf7bdc757e124138084261697c04c65a02befb3764a2835688de5c8248002712b14c9096e1403b77b3a6261eccf249cb10
- SSDEEP 3072:BR3ZDQL2eirvJi2qaswuaQsiAddz6K1vgL1Ae/UfVT5malxNy8bGbQ/E1PujKdpW:TCLq5B87KdPGRAe/UY8btow
- MD5 SHA1 SHA512 SSDEEP