Analysis
- max time kernel
152s - max time network
117s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
06/01/2023, 18:28
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
win10v2004-20220901-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target file.exe
- Size 301KB
- Sample230106-w4babshf89
- SHA256 319520613a0e1a84ac49ed5720cb337c12913dfb87f95f4cff6692ca599bfa74
- MD5 9fdb57bafabcaff76529d4dfff3350b7
- SHA1 e9a1c98ed8a8924332bd67414f43ae12612001d1
- SHA512 98d02c83fc0ea202c831b57f32a1ede75b123bfbdf909b01aa773c6fc90ba6ab987e88885a26ba3e821741f2177b850aa6ccf959d946d19fc0edab54d646a248
- SSDEEP 3072:xzXULvhDzpx53qhq4gqPihOVr0n/zOMjpMY61e9IXfWHgqhdpKBx9ehN0BWo:VULvdzwh3g7YCn/zOQpMY6nf+JkMD0B
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/3992-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2620-135-0x0000000002DC0000-0x0000000002DC9000-memory.dmp family_smokeloader behavioral2/memory/3992-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3992-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2120-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2120-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 2232 jjucgdf 2120 jjucgdf - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2620 set thread context of 3992 2620 file.exe 83 PID 2232 set thread context of 2120 2232 jjucgdf 92 - Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process 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 jjucgdf Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI jjucgdf Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI jjucgdf Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3992 file.exe 3992 file.exe 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found 1076 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1076 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 3992 file.exe 2120 jjucgdf - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 1076 Process not Found Token: SeCreatePagefilePrivilege 1076 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2620 wrote to memory of 3992 2620 file.exe 83 PID 2620 wrote to memory of 3992 2620 file.exe 83 PID 2620 wrote to memory of 3992 2620 file.exe 83 PID 2620 wrote to memory of 3992 2620 file.exe 83 PID 2620 wrote to memory of 3992 2620 file.exe 83 PID 2620 wrote to memory of 3992 2620 file.exe 83 PID 2232 wrote to memory of 2120 2232 jjucgdf 92 PID 2232 wrote to memory of 2120 2232 jjucgdf 92 PID 2232 wrote to memory of 2120 2232 jjucgdf 92 PID 2232 wrote to memory of 2120 2232 jjucgdf 92 PID 2232 wrote to memory of 2120 2232 jjucgdf 92 PID 2232 wrote to memory of 2120 2232 jjucgdf 92
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:2620 -
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:3992
-
-
C:\Users\Admin\AppData\Roaming\jjucgdfC:\Users\Admin\AppData\Roaming\jjucgdf1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2232 -
C:\Users\Admin\AppData\Roaming\jjucgdfC:\Users\Admin\AppData\Roaming\jjucgdf2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2120
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\jjucgdf
- Size 301KB
- SHA256 319520613a0e1a84ac49ed5720cb337c12913dfb87f95f4cff6692ca599bfa74
- MD5 9fdb57bafabcaff76529d4dfff3350b7
- SHA1 e9a1c98ed8a8924332bd67414f43ae12612001d1
- SHA512 98d02c83fc0ea202c831b57f32a1ede75b123bfbdf909b01aa773c6fc90ba6ab987e88885a26ba3e821741f2177b850aa6ccf959d946d19fc0edab54d646a248
- SSDEEP 3072:xzXULvhDzpx53qhq4gqPihOVr0n/zOMjpMY61e9IXfWHgqhdpKBx9ehN0BWo:VULvdzwh3g7YCn/zOQpMY6nf+JkMD0B
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\jjucgdf
- Size 301KB
- SHA256 319520613a0e1a84ac49ed5720cb337c12913dfb87f95f4cff6692ca599bfa74
- MD5 9fdb57bafabcaff76529d4dfff3350b7
- SHA1 e9a1c98ed8a8924332bd67414f43ae12612001d1
- SHA512 98d02c83fc0ea202c831b57f32a1ede75b123bfbdf909b01aa773c6fc90ba6ab987e88885a26ba3e821741f2177b850aa6ccf959d946d19fc0edab54d646a248
- SSDEEP 3072:xzXULvhDzpx53qhq4gqPihOVr0n/zOMjpMY61e9IXfWHgqhdpKBx9ehN0BWo:VULvdzwh3g7YCn/zOQpMY6nf+JkMD0B
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\jjucgdf
- Size 301KB
- SHA256 319520613a0e1a84ac49ed5720cb337c12913dfb87f95f4cff6692ca599bfa74
- MD5 9fdb57bafabcaff76529d4dfff3350b7
- SHA1 e9a1c98ed8a8924332bd67414f43ae12612001d1
- SHA512 98d02c83fc0ea202c831b57f32a1ede75b123bfbdf909b01aa773c6fc90ba6ab987e88885a26ba3e821741f2177b850aa6ccf959d946d19fc0edab54d646a248
- SSDEEP 3072:xzXULvhDzpx53qhq4gqPihOVr0n/zOMjpMY61e9IXfWHgqhdpKBx9ehN0BWo:VULvdzwh3g7YCn/zOQpMY6nf+JkMD0B
- MD5 SHA1 SHA512 SSDEEP