Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
18/12/2022, 01:09
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 214KB
- Sample221218-bhsbhadb7y
- SHA256 e584e079dbe69a668d03ba568e161f16561a870028a403c178b2afdb2d8046d4
- MD5 e09b23ff78601383691c1229a0f112ea
- SHA1 754b978b829acb4e06d9a0772c79fa9dd100cd46
- SHA512 6e55c089766075ad9c7c1b871d3e50dce3146f3fd00e5a78b67c92ccac8dbffb51cbd012c85e14102eabfe0a0eb3706343a6ad1fb666d53ba5f9798484fbaf35
- SSDEEP 3072:GQPmiQTLAYZwRPPg+NINJ9zMCb1wzgb4S8/g3xof+B4PLG3ERWR3LV:xPm/TLAY7wI3NMRskPg3CGePaU0VB
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/5112-133-0x00000000001F0000-0x00000000001F9000-memory.dmp family_smokeloader behavioral2/memory/1304-135-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1304-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1304-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3964-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3964-146-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 3576 fchiths 3964 fchiths - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 5112 set thread context of 1304 5112 file.exe 81 PID 3576 set thread context of 3964 3576 fchiths 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 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 fchiths Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fchiths Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fchiths Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1304 file.exe 1304 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 1304 file.exe 3964 fchiths - 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 5112 wrote to memory of 1304 5112 file.exe 81 PID 5112 wrote to memory of 1304 5112 file.exe 81 PID 5112 wrote to memory of 1304 5112 file.exe 81 PID 5112 wrote to memory of 1304 5112 file.exe 81 PID 5112 wrote to memory of 1304 5112 file.exe 81 PID 5112 wrote to memory of 1304 5112 file.exe 81 PID 3576 wrote to memory of 3964 3576 fchiths 90 PID 3576 wrote to memory of 3964 3576 fchiths 90 PID 3576 wrote to memory of 3964 3576 fchiths 90 PID 3576 wrote to memory of 3964 3576 fchiths 90 PID 3576 wrote to memory of 3964 3576 fchiths 90 PID 3576 wrote to memory of 3964 3576 fchiths 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:5112 -
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:1304
-
-
C:\Users\Admin\AppData\Roaming\fchithsC:\Users\Admin\AppData\Roaming\fchiths1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3576 -
C:\Users\Admin\AppData\Roaming\fchithsC:\Users\Admin\AppData\Roaming\fchiths2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:3964
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\fchiths
- Size 214KB
- SHA256 e584e079dbe69a668d03ba568e161f16561a870028a403c178b2afdb2d8046d4
- MD5 e09b23ff78601383691c1229a0f112ea
- SHA1 754b978b829acb4e06d9a0772c79fa9dd100cd46
- SHA512 6e55c089766075ad9c7c1b871d3e50dce3146f3fd00e5a78b67c92ccac8dbffb51cbd012c85e14102eabfe0a0eb3706343a6ad1fb666d53ba5f9798484fbaf35
- SSDEEP 3072:GQPmiQTLAYZwRPPg+NINJ9zMCb1wzgb4S8/g3xof+B4PLG3ERWR3LV:xPm/TLAY7wI3NMRskPg3CGePaU0VB
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\fchiths
- Size 214KB
- SHA256 e584e079dbe69a668d03ba568e161f16561a870028a403c178b2afdb2d8046d4
- MD5 e09b23ff78601383691c1229a0f112ea
- SHA1 754b978b829acb4e06d9a0772c79fa9dd100cd46
- SHA512 6e55c089766075ad9c7c1b871d3e50dce3146f3fd00e5a78b67c92ccac8dbffb51cbd012c85e14102eabfe0a0eb3706343a6ad1fb666d53ba5f9798484fbaf35
- SSDEEP 3072:GQPmiQTLAYZwRPPg+NINJ9zMCb1wzgb4S8/g3xof+B4PLG3ERWR3LV:xPm/TLAY7wI3NMRskPg3CGePaU0VB
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\fchiths
- Size 214KB
- SHA256 e584e079dbe69a668d03ba568e161f16561a870028a403c178b2afdb2d8046d4
- MD5 e09b23ff78601383691c1229a0f112ea
- SHA1 754b978b829acb4e06d9a0772c79fa9dd100cd46
- SHA512 6e55c089766075ad9c7c1b871d3e50dce3146f3fd00e5a78b67c92ccac8dbffb51cbd012c85e14102eabfe0a0eb3706343a6ad1fb666d53ba5f9798484fbaf35
- SSDEEP 3072:GQPmiQTLAYZwRPPg+NINJ9zMCb1wzgb4S8/g3xof+B4PLG3ERWR3LV:xPm/TLAY7wI3NMRskPg3CGePaU0VB
- MD5 SHA1 SHA512 SSDEEP