Analysis
- max time kernel
150s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
25/12/2022, 00:59
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
10 signatures
150 seconds
General
- Target file.exe
- Size 222KB
- Sample221225-bb3hwsah63
- SHA256 b606df43759b25e1300a9042370170e20f3f126aba31673b8d952fc11397c04c
- MD5 ee95ff2755305e8eff9f6e1d2e3e5aeb
- SHA1 8eeab94b1432530e8d0decb35ab0d6448ca183ee
- SHA512 3aa75f5afc1a187f6413d2bcaf8eadfc90970e34bf0d0164af4141aecada238033f8829ea1fca15ef26bd5361837103126333d4fecb221eaf8626500ed5b9c2e
- SSDEEP 3072:YDenLl7x5mlAN8XJdMehkP1uzL5auDXUgaRuHf/ln:rLl7qliUJdbhWuxaMAC
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/2216-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2420-135-0x00000000005E0000-0x00000000005E9000-memory.dmp family_smokeloader behavioral2/memory/2216-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2216-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3992-166-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3992-170-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 3288 wuvgjfj 3992 wuvgjfj - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2420 set thread context of 2216 2420 file.exe 82 PID 3288 set thread context of 3992 3288 wuvgjfj 91 - 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 wuvgjfj Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI wuvgjfj Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI wuvgjfj - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2216 file.exe 2216 file.exe 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found 388 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 388 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2216 file.exe 3992 wuvgjfj - Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeShutdownPrivilege 388 Process not Found Token: SeCreatePagefilePrivilege 388 Process not Found Token: SeShutdownPrivilege 388 Process not Found Token: SeCreatePagefilePrivilege 388 Process not Found Token: SeShutdownPrivilege 388 Process not Found Token: SeCreatePagefilePrivilege 388 Process not Found Token: SeShutdownPrivilege 388 Process not Found Token: SeCreatePagefilePrivilege 388 Process not Found Token: SeShutdownPrivilege 388 Process not Found Token: SeCreatePagefilePrivilege 388 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2420 wrote to memory of 2216 2420 file.exe 82 PID 2420 wrote to memory of 2216 2420 file.exe 82 PID 2420 wrote to memory of 2216 2420 file.exe 82 PID 2420 wrote to memory of 2216 2420 file.exe 82 PID 2420 wrote to memory of 2216 2420 file.exe 82 PID 2420 wrote to memory of 2216 2420 file.exe 82 PID 3288 wrote to memory of 3992 3288 wuvgjfj 91 PID 3288 wrote to memory of 3992 3288 wuvgjfj 91 PID 3288 wrote to memory of 3992 3288 wuvgjfj 91 PID 3288 wrote to memory of 3992 3288 wuvgjfj 91 PID 3288 wrote to memory of 3992 3288 wuvgjfj 91 PID 3288 wrote to memory of 3992 3288 wuvgjfj 91
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:2420 -
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:2216
-
-
C:\Users\Admin\AppData\Roaming\wuvgjfjC:\Users\Admin\AppData\Roaming\wuvgjfj1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3288 -
C:\Users\Admin\AppData\Roaming\wuvgjfjC:\Users\Admin\AppData\Roaming\wuvgjfj2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:3992
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\wuvgjfj
- Size 222KB
- SHA256 b606df43759b25e1300a9042370170e20f3f126aba31673b8d952fc11397c04c
- MD5 ee95ff2755305e8eff9f6e1d2e3e5aeb
- SHA1 8eeab94b1432530e8d0decb35ab0d6448ca183ee
- SHA512 3aa75f5afc1a187f6413d2bcaf8eadfc90970e34bf0d0164af4141aecada238033f8829ea1fca15ef26bd5361837103126333d4fecb221eaf8626500ed5b9c2e
- SSDEEP 3072:YDenLl7x5mlAN8XJdMehkP1uzL5auDXUgaRuHf/ln:rLl7qliUJdbhWuxaMAC
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\wuvgjfj
- Size 222KB
- SHA256 b606df43759b25e1300a9042370170e20f3f126aba31673b8d952fc11397c04c
- MD5 ee95ff2755305e8eff9f6e1d2e3e5aeb
- SHA1 8eeab94b1432530e8d0decb35ab0d6448ca183ee
- SHA512 3aa75f5afc1a187f6413d2bcaf8eadfc90970e34bf0d0164af4141aecada238033f8829ea1fca15ef26bd5361837103126333d4fecb221eaf8626500ed5b9c2e
- SSDEEP 3072:YDenLl7x5mlAN8XJdMehkP1uzL5auDXUgaRuHf/ln:rLl7qliUJdbhWuxaMAC
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\wuvgjfj
- Size 222KB
- SHA256 b606df43759b25e1300a9042370170e20f3f126aba31673b8d952fc11397c04c
- MD5 ee95ff2755305e8eff9f6e1d2e3e5aeb
- SHA1 8eeab94b1432530e8d0decb35ab0d6448ca183ee
- SHA512 3aa75f5afc1a187f6413d2bcaf8eadfc90970e34bf0d0164af4141aecada238033f8829ea1fca15ef26bd5361837103126333d4fecb221eaf8626500ed5b9c2e
- SSDEEP 3072:YDenLl7x5mlAN8XJdMehkP1uzL5auDXUgaRuHf/ln:rLl7qliUJdbhWuxaMAC
- MD5 SHA1 SHA512 SSDEEP