Analysis
- max time kernel
150s - max time network
138s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
01/01/2023, 04:15
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220901-en
9 signatures
150 seconds
General
- Target file.exe
- Size 239KB
- Sample230101-et9ayaed2v
- SHA256 774d3a81f40acdc595cf3c1b792dfbe10234a0304b55571a1eb4c6c8a22b96bb
- MD5 911d2bafe78e040318c8439fad8344a1
- SHA1 3c80d15c136b571a6e379718972a71510b54ac68
- SHA512 a96e63177d71327104da6d81e885b165f9d33ecbd454c96fbf08bd77bdfe1b8977797754e91e466114ad6d9561396bf279e41b7d9925c68e5634c65ebe5a054d
- SSDEEP 3072:eRXSt4vfL+s8MwYA65iAQqrXKZqtbfReVpQbRWKFLfeeeeeeGmqMAC+r27hZY:GlLR2YAzvEUqpfmyR//p3ZY
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4784-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1572-135-0x00000000006F0000-0x00000000006F9000-memory.dmp family_smokeloader behavioral2/memory/4784-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4784-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1572 set thread context of 4784 1572 file.exe 80 - Checks SCSI registry key(s) 3 TTPs 3 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 - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4784 file.exe 4784 file.exe 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found 2056 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2056 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4784 file.exe - Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeShutdownPrivilege 2056 Process not Found Token: SeCreatePagefilePrivilege 2056 Process not Found Token: SeShutdownPrivilege 2056 Process not Found Token: SeCreatePagefilePrivilege 2056 Process not Found Token: SeShutdownPrivilege 2056 Process not Found Token: SeCreatePagefilePrivilege 2056 Process not Found Token: SeShutdownPrivilege 2056 Process not Found Token: SeCreatePagefilePrivilege 2056 Process not Found Token: SeShutdownPrivilege 2056 Process not Found Token: SeCreatePagefilePrivilege 2056 Process not Found Token: SeShutdownPrivilege 2056 Process not Found Token: SeCreatePagefilePrivilege 2056 Process not Found - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1572 wrote to memory of 4784 1572 file.exe 80 PID 1572 wrote to memory of 4784 1572 file.exe 80 PID 1572 wrote to memory of 4784 1572 file.exe 80 PID 1572 wrote to memory of 4784 1572 file.exe 80 PID 1572 wrote to memory of 4784 1572 file.exe 80 PID 1572 wrote to memory of 4784 1572 file.exe 80
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:1572 -
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:4784
-