Analysis
- max time kernel
151s - max time network
140s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
26/09/2022, 17:39
Static task
static1
Behavioral task
behavioral1
Sample
d77a261c8434d6ab76eccac1398d845d.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
d77a261c8434d6ab76eccac1398d845d.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target d77a261c8434d6ab76eccac1398d845d.exe
- Size 129KB
- Sample220926-v8ac6abec7
- SHA256 497acacc3f41d00e6bf7c55b2f2eed21c07dbd5b1396081564ea2d887683c062
- MD5 d77a261c8434d6ab76eccac1398d845d
- SHA1 082993668d2232082efdf1f0a7edb321e0326a14
- SHA512 f108422f9f9dbcd19a8022af7976a34ad9562052dd3f0d5f8957b80e6ef81901166d4a4b4c9586acbba4518b247138c94788df841a3f45d96790cba7771c7033
- SSDEEP 1536:pfSWSY7ET2qPYZTc5V/TRzRStJJW4hjpLe5ooVeh82KywaS8dZ7r/X58d7AEe4En:paWSCTc5hTte/NArnp8x8d72T5B
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/1912-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4736-135-0x0000000000810000-0x0000000000819000-memory.dmp family_smokeloader behavioral2/memory/1912-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1912-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3980-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3980-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 1184 awcffur 3980 awcffur - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4736 set thread context of 1912 4736 d77a261c8434d6ab76eccac1398d845d.exe 79 PID 1184 set thread context of 3980 1184 awcffur 88 - 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 awcffur Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI awcffur Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI d77a261c8434d6ab76eccac1398d845d.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI d77a261c8434d6ab76eccac1398d845d.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI d77a261c8434d6ab76eccac1398d845d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI awcffur - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1912 d77a261c8434d6ab76eccac1398d845d.exe 1912 d77a261c8434d6ab76eccac1398d845d.exe 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found 2576 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2576 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 1912 d77a261c8434d6ab76eccac1398d845d.exe 3980 awcffur - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2576 Process not Found Token: SeCreatePagefilePrivilege 2576 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4736 wrote to memory of 1912 4736 d77a261c8434d6ab76eccac1398d845d.exe 79 PID 4736 wrote to memory of 1912 4736 d77a261c8434d6ab76eccac1398d845d.exe 79 PID 4736 wrote to memory of 1912 4736 d77a261c8434d6ab76eccac1398d845d.exe 79 PID 4736 wrote to memory of 1912 4736 d77a261c8434d6ab76eccac1398d845d.exe 79 PID 4736 wrote to memory of 1912 4736 d77a261c8434d6ab76eccac1398d845d.exe 79 PID 4736 wrote to memory of 1912 4736 d77a261c8434d6ab76eccac1398d845d.exe 79 PID 1184 wrote to memory of 3980 1184 awcffur 88 PID 1184 wrote to memory of 3980 1184 awcffur 88 PID 1184 wrote to memory of 3980 1184 awcffur 88 PID 1184 wrote to memory of 3980 1184 awcffur 88 PID 1184 wrote to memory of 3980 1184 awcffur 88 PID 1184 wrote to memory of 3980 1184 awcffur 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\d77a261c8434d6ab76eccac1398d845d.exe"C:\Users\Admin\AppData\Local\Temp\d77a261c8434d6ab76eccac1398d845d.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4736 -
C:\Users\Admin\AppData\Local\Temp\d77a261c8434d6ab76eccac1398d845d.exe"C:\Users\Admin\AppData\Local\Temp\d77a261c8434d6ab76eccac1398d845d.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1912
-
-
C:\Users\Admin\AppData\Roaming\awcffurC:\Users\Admin\AppData\Roaming\awcffur1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1184 -
C:\Users\Admin\AppData\Roaming\awcffurC:\Users\Admin\AppData\Roaming\awcffur2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:3980
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\awcffur
- Size 129KB
- SHA256 497acacc3f41d00e6bf7c55b2f2eed21c07dbd5b1396081564ea2d887683c062
- MD5 d77a261c8434d6ab76eccac1398d845d
- SHA1 082993668d2232082efdf1f0a7edb321e0326a14
- SHA512 f108422f9f9dbcd19a8022af7976a34ad9562052dd3f0d5f8957b80e6ef81901166d4a4b4c9586acbba4518b247138c94788df841a3f45d96790cba7771c7033
- SSDEEP 1536:pfSWSY7ET2qPYZTc5V/TRzRStJJW4hjpLe5ooVeh82KywaS8dZ7r/X58d7AEe4En:paWSCTc5hTte/NArnp8x8d72T5B
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\awcffur
- Size 129KB
- SHA256 497acacc3f41d00e6bf7c55b2f2eed21c07dbd5b1396081564ea2d887683c062
- MD5 d77a261c8434d6ab76eccac1398d845d
- SHA1 082993668d2232082efdf1f0a7edb321e0326a14
- SHA512 f108422f9f9dbcd19a8022af7976a34ad9562052dd3f0d5f8957b80e6ef81901166d4a4b4c9586acbba4518b247138c94788df841a3f45d96790cba7771c7033
- SSDEEP 1536:pfSWSY7ET2qPYZTc5V/TRzRStJJW4hjpLe5ooVeh82KywaS8dZ7r/X58d7AEe4En:paWSCTc5hTte/NArnp8x8d72T5B
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\awcffur
- Size 129KB
- SHA256 497acacc3f41d00e6bf7c55b2f2eed21c07dbd5b1396081564ea2d887683c062
- MD5 d77a261c8434d6ab76eccac1398d845d
- SHA1 082993668d2232082efdf1f0a7edb321e0326a14
- SHA512 f108422f9f9dbcd19a8022af7976a34ad9562052dd3f0d5f8957b80e6ef81901166d4a4b4c9586acbba4518b247138c94788df841a3f45d96790cba7771c7033
- SSDEEP 1536:pfSWSY7ET2qPYZTc5V/TRzRStJJW4hjpLe5ooVeh82KywaS8dZ7r/X58d7AEe4En:paWSCTc5hTte/NArnp8x8d72T5B
- MD5 SHA1 SHA512 SSDEEP