Analysis
- max time kernel
150s - 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
24/12/2022, 15:59
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 224KB
- Sample221224-te21msab84
- SHA256 abd9daba9eeb7d42e2ee8acd6078f029b5a2ee9e4a74bfbf8a6123e7daa53ea3
- MD5 b9213ac0403e0ca2c5501315fb3db20a
- SHA1 82c159c52e31ece28dc0c0231362a8a2d33669d2
- SHA512 b899da326e7c1506ef3b314c6b88ad56754bab00723d20024bd59f6351062720c86b27e8d3e64169696954ef784aac0c15fd86cd717db98b0de478f08052e7d8
- SSDEEP 3072:CDb2LO4sM75AC2A1gJjL78LYviM5I1FUyDckauDnE3BmbIFf/ln:nLO4HWN3JjXkYviMevBraME3oID
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/1248-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/5108-135-0x00000000005E0000-0x00000000005E9000-memory.dmp family_smokeloader behavioral2/memory/1248-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1248-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3360-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3360-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 1112 wihjufj 3360 wihjufj - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 5108 set thread context of 1248 5108 file.exe 81 PID 1112 set thread context of 3360 1112 wihjufj 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 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 wihjufj Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI wihjufj Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI wihjufj - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1248 file.exe 1248 file.exe 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found 2432 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2432 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 1248 file.exe 3360 wihjufj - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2432 Process not Found Token: SeCreatePagefilePrivilege 2432 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 5108 wrote to memory of 1248 5108 file.exe 81 PID 5108 wrote to memory of 1248 5108 file.exe 81 PID 5108 wrote to memory of 1248 5108 file.exe 81 PID 5108 wrote to memory of 1248 5108 file.exe 81 PID 5108 wrote to memory of 1248 5108 file.exe 81 PID 5108 wrote to memory of 1248 5108 file.exe 81 PID 1112 wrote to memory of 3360 1112 wihjufj 90 PID 1112 wrote to memory of 3360 1112 wihjufj 90 PID 1112 wrote to memory of 3360 1112 wihjufj 90 PID 1112 wrote to memory of 3360 1112 wihjufj 90 PID 1112 wrote to memory of 3360 1112 wihjufj 90 PID 1112 wrote to memory of 3360 1112 wihjufj 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:5108 -
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:1248
-
-
C:\Users\Admin\AppData\Roaming\wihjufjC:\Users\Admin\AppData\Roaming\wihjufj1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1112 -
C:\Users\Admin\AppData\Roaming\wihjufjC:\Users\Admin\AppData\Roaming\wihjufj2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:3360
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\wihjufj
- Size 224KB
- SHA256 abd9daba9eeb7d42e2ee8acd6078f029b5a2ee9e4a74bfbf8a6123e7daa53ea3
- MD5 b9213ac0403e0ca2c5501315fb3db20a
- SHA1 82c159c52e31ece28dc0c0231362a8a2d33669d2
- SHA512 b899da326e7c1506ef3b314c6b88ad56754bab00723d20024bd59f6351062720c86b27e8d3e64169696954ef784aac0c15fd86cd717db98b0de478f08052e7d8
- SSDEEP 3072:CDb2LO4sM75AC2A1gJjL78LYviM5I1FUyDckauDnE3BmbIFf/ln:nLO4HWN3JjXkYviMevBraME3oID
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\wihjufj
- Size 224KB
- SHA256 abd9daba9eeb7d42e2ee8acd6078f029b5a2ee9e4a74bfbf8a6123e7daa53ea3
- MD5 b9213ac0403e0ca2c5501315fb3db20a
- SHA1 82c159c52e31ece28dc0c0231362a8a2d33669d2
- SHA512 b899da326e7c1506ef3b314c6b88ad56754bab00723d20024bd59f6351062720c86b27e8d3e64169696954ef784aac0c15fd86cd717db98b0de478f08052e7d8
- SSDEEP 3072:CDb2LO4sM75AC2A1gJjL78LYviM5I1FUyDckauDnE3BmbIFf/ln:nLO4HWN3JjXkYviMevBraME3oID
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\wihjufj
- Size 224KB
- SHA256 abd9daba9eeb7d42e2ee8acd6078f029b5a2ee9e4a74bfbf8a6123e7daa53ea3
- MD5 b9213ac0403e0ca2c5501315fb3db20a
- SHA1 82c159c52e31ece28dc0c0231362a8a2d33669d2
- SHA512 b899da326e7c1506ef3b314c6b88ad56754bab00723d20024bd59f6351062720c86b27e8d3e64169696954ef784aac0c15fd86cd717db98b0de478f08052e7d8
- SSDEEP 3072:CDb2LO4sM75AC2A1gJjL78LYviM5I1FUyDckauDnE3BmbIFf/ln:nLO4HWN3JjXkYviMevBraME3oID
- MD5 SHA1 SHA512 SSDEEP