Analysis
- max time kernel
150s - max time network
126s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
01/01/2023, 22:59
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 240KB
- Sample230101-2ydfdsga9v
- SHA256 3d380e0e00c4b1bdabda368a046eaa3e83e1cfcfc16b2884526e9752ee02b649
- MD5 d23fab514f275e9e3b27d9135dadf04e
- SHA1 1a368c692f425b3d4d9941760fde75d97fad9503
- SHA512 b92013498271e1a32377848ea4d88d04c73470b4af2f98a42d37cf40ce834acb5241404ef3498e3bc7eaa76591fc325e1914f6e6520b0599f8b72d888f3d5726
- SSDEEP 3072:YXZJhyhLYBAYuET5qyP0H8TPMyA0tjTd8Kyumq3S2WkjUZhRjM2nvQGW7iSWO:syLAkEoygDI+lg3SSc9V4b7i
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/4896-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1484-135-0x00000000005E0000-0x00000000005E9000-memory.dmp family_smokeloader behavioral2/memory/4896-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4896-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1120-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1120-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 4232 urtrdib 1120 urtrdib - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1484 set thread context of 4896 1484 file.exe 81 PID 4232 set thread context of 1120 4232 urtrdib 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 enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI urtrdib 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 urtrdib Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI urtrdib - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4896 file.exe 4896 file.exe 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found 2980 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2980 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 4896 file.exe 1120 urtrdib - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2980 Process not Found Token: SeCreatePagefilePrivilege 2980 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1484 wrote to memory of 4896 1484 file.exe 81 PID 1484 wrote to memory of 4896 1484 file.exe 81 PID 1484 wrote to memory of 4896 1484 file.exe 81 PID 1484 wrote to memory of 4896 1484 file.exe 81 PID 1484 wrote to memory of 4896 1484 file.exe 81 PID 1484 wrote to memory of 4896 1484 file.exe 81 PID 4232 wrote to memory of 1120 4232 urtrdib 90 PID 4232 wrote to memory of 1120 4232 urtrdib 90 PID 4232 wrote to memory of 1120 4232 urtrdib 90 PID 4232 wrote to memory of 1120 4232 urtrdib 90 PID 4232 wrote to memory of 1120 4232 urtrdib 90 PID 4232 wrote to memory of 1120 4232 urtrdib 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:1484 -
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:4896
-
-
C:\Users\Admin\AppData\Roaming\urtrdibC:\Users\Admin\AppData\Roaming\urtrdib1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4232 -
C:\Users\Admin\AppData\Roaming\urtrdibC:\Users\Admin\AppData\Roaming\urtrdib2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:1120
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\urtrdib
- Size 240KB
- SHA256 3d380e0e00c4b1bdabda368a046eaa3e83e1cfcfc16b2884526e9752ee02b649
- MD5 d23fab514f275e9e3b27d9135dadf04e
- SHA1 1a368c692f425b3d4d9941760fde75d97fad9503
- SHA512 b92013498271e1a32377848ea4d88d04c73470b4af2f98a42d37cf40ce834acb5241404ef3498e3bc7eaa76591fc325e1914f6e6520b0599f8b72d888f3d5726
- SSDEEP 3072:YXZJhyhLYBAYuET5qyP0H8TPMyA0tjTd8Kyumq3S2WkjUZhRjM2nvQGW7iSWO:syLAkEoygDI+lg3SSc9V4b7i
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\urtrdib
- Size 240KB
- SHA256 3d380e0e00c4b1bdabda368a046eaa3e83e1cfcfc16b2884526e9752ee02b649
- MD5 d23fab514f275e9e3b27d9135dadf04e
- SHA1 1a368c692f425b3d4d9941760fde75d97fad9503
- SHA512 b92013498271e1a32377848ea4d88d04c73470b4af2f98a42d37cf40ce834acb5241404ef3498e3bc7eaa76591fc325e1914f6e6520b0599f8b72d888f3d5726
- SSDEEP 3072:YXZJhyhLYBAYuET5qyP0H8TPMyA0tjTd8Kyumq3S2WkjUZhRjM2nvQGW7iSWO:syLAkEoygDI+lg3SSc9V4b7i
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\urtrdib
- Size 240KB
- SHA256 3d380e0e00c4b1bdabda368a046eaa3e83e1cfcfc16b2884526e9752ee02b649
- MD5 d23fab514f275e9e3b27d9135dadf04e
- SHA1 1a368c692f425b3d4d9941760fde75d97fad9503
- SHA512 b92013498271e1a32377848ea4d88d04c73470b4af2f98a42d37cf40ce834acb5241404ef3498e3bc7eaa76591fc325e1914f6e6520b0599f8b72d888f3d5726
- SSDEEP 3072:YXZJhyhLYBAYuET5qyP0H8TPMyA0tjTd8Kyumq3S2WkjUZhRjM2nvQGW7iSWO:syLAkEoygDI+lg3SSc9V4b7i
- MD5 SHA1 SHA512 SSDEEP