Analysis
- max time kernel
150s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
02/01/2023, 15:09
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target file.exe
- Size 210KB
- Sample230102-sjfgrsef88
- SHA256 011cbeac7f97ca796ba1de8b89a91556089b9a0f4e6f3adeb0b66b6b8cfa3d75
- MD5 07eadf81343c035a4ab9232805f7860e
- SHA1 47b4fce11694d8c68d95d412a996d47e28f4303c
- SHA512 0011eb2e3be123cdc81f24e833f0112d5ca65d59e2e228fcf2e8198b953f0004f9c8badc0601d1bcee366dc3f3fe632b0a3f08e185d4cc0a0ee7e44e68f8cc1e
- SSDEEP 3072:H3XMuWb7MLsx09Raw5cLdS7foyci6Am2IdIknCSDW6:HyQLVAXLI7ARy2CS
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/1476-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2236-135-0x00000000004D0000-0x00000000004D9000-memory.dmp family_smokeloader behavioral2/memory/1476-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1476-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/5016-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/5016-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 3556 bihihus 5016 bihihus - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2236 set thread context of 1476 2236 file.exe 86 PID 3556 set thread context of 5016 3556 bihihus 98 - 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 bihihus Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI bihihus Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI bihihus - Modifies registry class 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ Process not Found Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1476 file.exe 1476 file.exe 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2164 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 1476 file.exe 5016 bihihus - Suspicious use of AdjustPrivilegeToken 22 IoCs
description pid Process Token: SeShutdownPrivilege 2164 Process not Found Token: SeCreatePagefilePrivilege 2164 Process not Found Token: SeShutdownPrivilege 2164 Process not Found Token: SeCreatePagefilePrivilege 2164 Process not Found Token: SeShutdownPrivilege 2164 Process not Found Token: SeCreatePagefilePrivilege 2164 Process not Found Token: SeShutdownPrivilege 2164 Process not Found Token: SeCreatePagefilePrivilege 2164 Process not Found Token: SeShutdownPrivilege 2164 Process not Found Token: SeCreatePagefilePrivilege 2164 Process not Found Token: SeShutdownPrivilege 2164 Process not Found Token: SeCreatePagefilePrivilege 2164 Process not Found Token: SeShutdownPrivilege 2164 Process not Found Token: SeCreatePagefilePrivilege 2164 Process not Found Token: SeShutdownPrivilege 2164 Process not Found Token: SeCreatePagefilePrivilege 2164 Process not Found Token: SeShutdownPrivilege 2164 Process not Found Token: SeCreatePagefilePrivilege 2164 Process not Found Token: SeShutdownPrivilege 2164 Process not Found Token: SeCreatePagefilePrivilege 2164 Process not Found Token: SeShutdownPrivilege 2164 Process not Found Token: SeCreatePagefilePrivilege 2164 Process not Found - Suspicious use of FindShellTrayWindow 4 IoCs
pid Process 2164 Process not Found 2164 Process not Found 2164 Process not Found 2164 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2236 wrote to memory of 1476 2236 file.exe 86 PID 2236 wrote to memory of 1476 2236 file.exe 86 PID 2236 wrote to memory of 1476 2236 file.exe 86 PID 2236 wrote to memory of 1476 2236 file.exe 86 PID 2236 wrote to memory of 1476 2236 file.exe 86 PID 2236 wrote to memory of 1476 2236 file.exe 86 PID 3556 wrote to memory of 5016 3556 bihihus 98 PID 3556 wrote to memory of 5016 3556 bihihus 98 PID 3556 wrote to memory of 5016 3556 bihihus 98 PID 3556 wrote to memory of 5016 3556 bihihus 98 PID 3556 wrote to memory of 5016 3556 bihihus 98 PID 3556 wrote to memory of 5016 3556 bihihus 98
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:2236 -
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:1476
-
-
C:\Users\Admin\AppData\Roaming\bihihusC:\Users\Admin\AppData\Roaming\bihihus1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3556 -
C:\Users\Admin\AppData\Roaming\bihihusC:\Users\Admin\AppData\Roaming\bihihus2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:5016
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\bihihus
- Size 210KB
- SHA256 011cbeac7f97ca796ba1de8b89a91556089b9a0f4e6f3adeb0b66b6b8cfa3d75
- MD5 07eadf81343c035a4ab9232805f7860e
- SHA1 47b4fce11694d8c68d95d412a996d47e28f4303c
- SHA512 0011eb2e3be123cdc81f24e833f0112d5ca65d59e2e228fcf2e8198b953f0004f9c8badc0601d1bcee366dc3f3fe632b0a3f08e185d4cc0a0ee7e44e68f8cc1e
- SSDEEP 3072:H3XMuWb7MLsx09Raw5cLdS7foyci6Am2IdIknCSDW6:HyQLVAXLI7ARy2CS
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\bihihus
- Size 210KB
- SHA256 011cbeac7f97ca796ba1de8b89a91556089b9a0f4e6f3adeb0b66b6b8cfa3d75
- MD5 07eadf81343c035a4ab9232805f7860e
- SHA1 47b4fce11694d8c68d95d412a996d47e28f4303c
- SHA512 0011eb2e3be123cdc81f24e833f0112d5ca65d59e2e228fcf2e8198b953f0004f9c8badc0601d1bcee366dc3f3fe632b0a3f08e185d4cc0a0ee7e44e68f8cc1e
- SSDEEP 3072:H3XMuWb7MLsx09Raw5cLdS7foyci6Am2IdIknCSDW6:HyQLVAXLI7ARy2CS
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\bihihus
- Size 210KB
- SHA256 011cbeac7f97ca796ba1de8b89a91556089b9a0f4e6f3adeb0b66b6b8cfa3d75
- MD5 07eadf81343c035a4ab9232805f7860e
- SHA1 47b4fce11694d8c68d95d412a996d47e28f4303c
- SHA512 0011eb2e3be123cdc81f24e833f0112d5ca65d59e2e228fcf2e8198b953f0004f9c8badc0601d1bcee366dc3f3fe632b0a3f08e185d4cc0a0ee7e44e68f8cc1e
- SSDEEP 3072:H3XMuWb7MLsx09Raw5cLdS7foyci6Am2IdIknCSDW6:HyQLVAXLI7ARy2CS
- MD5 SHA1 SHA512 SSDEEP