Analysis
- max time kernel
185s - max time network
197s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
11/02/2023, 12:17
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target file.exe
- Size 379KB
- Sample230211-pf13hsce67
- SHA256 32dcd470f4a41d9520e38dde4e77e873703e10897d7d012e3af0aaa3ddfbc57c
- MD5 07973168e156eb28b965a383d538d48c
- SHA1 575e55db7f10ba525d3a2fb4dcaa4d1061bcb627
- SHA512 4b026411cbc1d1ad35e02f4c8a50a6aaa7fa6b9999459b538068ac14045584628bf909a968544dfaecc6fe375f60a89b02a12a8983a5c1124f21287bd27feca2
- SSDEEP 6144:EBqdR7kQNiiZ1T8F6e5Yf4qzal9dKlTRT6h0F:YqXUP061q09wJRg0F
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/2352-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3756-135-0x0000000002410000-0x0000000002419000-memory.dmp family_smokeloader behavioral2/memory/2352-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2352-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/212-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/212-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 3484 gjewcub 212 gjewcub - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3756 set thread context of 2352 3756 file.exe 80 PID 3484 set thread context of 212 3484 gjewcub 82 - 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 file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI gjewcub Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI gjewcub Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI gjewcub Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2352 file.exe 2352 file.exe 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found 752 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 752 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2352 file.exe 212 gjewcub - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 752 Process not Found Token: SeCreatePagefilePrivilege 752 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3756 wrote to memory of 2352 3756 file.exe 80 PID 3756 wrote to memory of 2352 3756 file.exe 80 PID 3756 wrote to memory of 2352 3756 file.exe 80 PID 3756 wrote to memory of 2352 3756 file.exe 80 PID 3756 wrote to memory of 2352 3756 file.exe 80 PID 3756 wrote to memory of 2352 3756 file.exe 80 PID 3484 wrote to memory of 212 3484 gjewcub 82 PID 3484 wrote to memory of 212 3484 gjewcub 82 PID 3484 wrote to memory of 212 3484 gjewcub 82 PID 3484 wrote to memory of 212 3484 gjewcub 82 PID 3484 wrote to memory of 212 3484 gjewcub 82 PID 3484 wrote to memory of 212 3484 gjewcub 82
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:3756 -
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:2352
-
-
C:\Users\Admin\AppData\Roaming\gjewcubC:\Users\Admin\AppData\Roaming\gjewcub1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3484 -
C:\Users\Admin\AppData\Roaming\gjewcubC:\Users\Admin\AppData\Roaming\gjewcub2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:212
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\gjewcub
- Size 379KB
- SHA256 32dcd470f4a41d9520e38dde4e77e873703e10897d7d012e3af0aaa3ddfbc57c
- MD5 07973168e156eb28b965a383d538d48c
- SHA1 575e55db7f10ba525d3a2fb4dcaa4d1061bcb627
- SHA512 4b026411cbc1d1ad35e02f4c8a50a6aaa7fa6b9999459b538068ac14045584628bf909a968544dfaecc6fe375f60a89b02a12a8983a5c1124f21287bd27feca2
- SSDEEP 6144:EBqdR7kQNiiZ1T8F6e5Yf4qzal9dKlTRT6h0F:YqXUP061q09wJRg0F
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\gjewcub
- Size 379KB
- SHA256 32dcd470f4a41d9520e38dde4e77e873703e10897d7d012e3af0aaa3ddfbc57c
- MD5 07973168e156eb28b965a383d538d48c
- SHA1 575e55db7f10ba525d3a2fb4dcaa4d1061bcb627
- SHA512 4b026411cbc1d1ad35e02f4c8a50a6aaa7fa6b9999459b538068ac14045584628bf909a968544dfaecc6fe375f60a89b02a12a8983a5c1124f21287bd27feca2
- SSDEEP 6144:EBqdR7kQNiiZ1T8F6e5Yf4qzal9dKlTRT6h0F:YqXUP061q09wJRg0F
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\gjewcub
- Size 379KB
- SHA256 32dcd470f4a41d9520e38dde4e77e873703e10897d7d012e3af0aaa3ddfbc57c
- MD5 07973168e156eb28b965a383d538d48c
- SHA1 575e55db7f10ba525d3a2fb4dcaa4d1061bcb627
- SHA512 4b026411cbc1d1ad35e02f4c8a50a6aaa7fa6b9999459b538068ac14045584628bf909a968544dfaecc6fe375f60a89b02a12a8983a5c1124f21287bd27feca2
- SSDEEP 6144:EBqdR7kQNiiZ1T8F6e5Yf4qzal9dKlTRT6h0F:YqXUP061q09wJRg0F
- MD5 SHA1 SHA512 SSDEEP