Analysis
- max time kernel
151s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
09/01/2023, 10:18
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 278KB
- Sample230109-mbyeqahc81
- SHA256 ab9aa981e24b6dbe183fff66d17e38fbb7ac1fa54fd1dbf3c4878c65ff18efa4
- MD5 a1f66097ac90ff53d13dc4fbf767b971
- SHA1 f00529db63fde1d41c03c38813296b6aaada456d
- SHA512 c882f5872b48cc59f652459c616ebce2c5fe46688cacd098b37351b8218d68cc868106e7def960ee47c3e9ced3f47aa1322747d2a75fbaf235683d02e3b91bc8
- SSDEEP 3072:fAXOp3r0pVw56LxDVsp55jcMiRfnzf+1DmR5RZPy/7gk9ZNp+Y:f043QpVwMLFGNQzRvK1u4/7gk9ZNj
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/2640-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3444-135-0x0000000003050000-0x0000000003059000-memory.dmp family_smokeloader behavioral2/memory/2640-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2640-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4812-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4812-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 4672 vcebgrc 4812 vcebgrc - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3444 set thread context of 2640 3444 file.exe 80 PID 4672 set thread context of 4812 4672 vcebgrc 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 vcebgrc 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 vcebgrc Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI vcebgrc - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2640 file.exe 2640 file.exe 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2220 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2640 file.exe 4812 vcebgrc - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2220 Process not Found Token: SeCreatePagefilePrivilege 2220 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3444 wrote to memory of 2640 3444 file.exe 80 PID 3444 wrote to memory of 2640 3444 file.exe 80 PID 3444 wrote to memory of 2640 3444 file.exe 80 PID 3444 wrote to memory of 2640 3444 file.exe 80 PID 3444 wrote to memory of 2640 3444 file.exe 80 PID 3444 wrote to memory of 2640 3444 file.exe 80 PID 4672 wrote to memory of 4812 4672 vcebgrc 89 PID 4672 wrote to memory of 4812 4672 vcebgrc 89 PID 4672 wrote to memory of 4812 4672 vcebgrc 89 PID 4672 wrote to memory of 4812 4672 vcebgrc 89 PID 4672 wrote to memory of 4812 4672 vcebgrc 89 PID 4672 wrote to memory of 4812 4672 vcebgrc 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:3444 -
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:2640
-
-
C:\Users\Admin\AppData\Roaming\vcebgrcC:\Users\Admin\AppData\Roaming\vcebgrc1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4672 -
C:\Users\Admin\AppData\Roaming\vcebgrcC:\Users\Admin\AppData\Roaming\vcebgrc2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:4812
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\vcebgrc
- Size 278KB
- SHA256 ab9aa981e24b6dbe183fff66d17e38fbb7ac1fa54fd1dbf3c4878c65ff18efa4
- MD5 a1f66097ac90ff53d13dc4fbf767b971
- SHA1 f00529db63fde1d41c03c38813296b6aaada456d
- SHA512 c882f5872b48cc59f652459c616ebce2c5fe46688cacd098b37351b8218d68cc868106e7def960ee47c3e9ced3f47aa1322747d2a75fbaf235683d02e3b91bc8
- SSDEEP 3072:fAXOp3r0pVw56LxDVsp55jcMiRfnzf+1DmR5RZPy/7gk9ZNp+Y:f043QpVwMLFGNQzRvK1u4/7gk9ZNj
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\vcebgrc
- Size 278KB
- SHA256 ab9aa981e24b6dbe183fff66d17e38fbb7ac1fa54fd1dbf3c4878c65ff18efa4
- MD5 a1f66097ac90ff53d13dc4fbf767b971
- SHA1 f00529db63fde1d41c03c38813296b6aaada456d
- SHA512 c882f5872b48cc59f652459c616ebce2c5fe46688cacd098b37351b8218d68cc868106e7def960ee47c3e9ced3f47aa1322747d2a75fbaf235683d02e3b91bc8
- SSDEEP 3072:fAXOp3r0pVw56LxDVsp55jcMiRfnzf+1DmR5RZPy/7gk9ZNp+Y:f043QpVwMLFGNQzRvK1u4/7gk9ZNj
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\vcebgrc
- Size 278KB
- SHA256 ab9aa981e24b6dbe183fff66d17e38fbb7ac1fa54fd1dbf3c4878c65ff18efa4
- MD5 a1f66097ac90ff53d13dc4fbf767b971
- SHA1 f00529db63fde1d41c03c38813296b6aaada456d
- SHA512 c882f5872b48cc59f652459c616ebce2c5fe46688cacd098b37351b8218d68cc868106e7def960ee47c3e9ced3f47aa1322747d2a75fbaf235683d02e3b91bc8
- SSDEEP 3072:fAXOp3r0pVw56LxDVsp55jcMiRfnzf+1DmR5RZPy/7gk9ZNp+Y:f043QpVwMLFGNQzRvK1u4/7gk9ZNj
- MD5 SHA1 SHA512 SSDEEP