Analysis
- max time kernel
150s - max time network
125s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
09/09/2022, 01:59
Static task
static1
Behavioral task
behavioral1
Sample
a3f051bdf591c6d1def8dc9bc20c9627.exe
Resource
win7-20220812-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
a3f051bdf591c6d1def8dc9bc20c9627.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target a3f051bdf591c6d1def8dc9bc20c9627.exe
- Size 206KB
- Sample220909-ceefxagcf5
- SHA256 d902a88b896fa15de8d51951e3964f6b87bcf916a7ec4e17eae9163b66bcbbbf
- MD5 a3f051bdf591c6d1def8dc9bc20c9627
- SHA1 c5aab23ec7163596c0f6b271230168bf0d58f0da
- SHA512 858069247ce9377c4990c6b6bbc1e3f9939545fd5c5dcf0dcf887d78dc999c441e3e883cbbbd7aabf6e1060f920ba1acd65210457d32a695485cff439663f6db
- SSDEEP 3072:rUbYHtURgy50DT7JcI+36FI7uzR/HPi/kMK3DECm33LEkIE+dp:oMdLDTZFXzHa33QkId
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/2852-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4956-135-0x00000000048B0000-0x00000000048B9000-memory.dmp family_smokeloader behavioral2/memory/2852-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2852-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3812-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3812-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 1436 swaetur 3812 swaetur - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4956 set thread context of 2852 4956 a3f051bdf591c6d1def8dc9bc20c9627.exe 84 PID 1436 set thread context of 3812 1436 swaetur 100 - 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 a3f051bdf591c6d1def8dc9bc20c9627.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a3f051bdf591c6d1def8dc9bc20c9627.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a3f051bdf591c6d1def8dc9bc20c9627.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI swaetur Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI swaetur Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI swaetur - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2852 a3f051bdf591c6d1def8dc9bc20c9627.exe 2852 a3f051bdf591c6d1def8dc9bc20c9627.exe 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found 3060 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3060 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2852 a3f051bdf591c6d1def8dc9bc20c9627.exe 3812 swaetur - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 3060 Process not Found Token: SeCreatePagefilePrivilege 3060 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4956 wrote to memory of 2852 4956 a3f051bdf591c6d1def8dc9bc20c9627.exe 84 PID 4956 wrote to memory of 2852 4956 a3f051bdf591c6d1def8dc9bc20c9627.exe 84 PID 4956 wrote to memory of 2852 4956 a3f051bdf591c6d1def8dc9bc20c9627.exe 84 PID 4956 wrote to memory of 2852 4956 a3f051bdf591c6d1def8dc9bc20c9627.exe 84 PID 4956 wrote to memory of 2852 4956 a3f051bdf591c6d1def8dc9bc20c9627.exe 84 PID 4956 wrote to memory of 2852 4956 a3f051bdf591c6d1def8dc9bc20c9627.exe 84 PID 1436 wrote to memory of 3812 1436 swaetur 100 PID 1436 wrote to memory of 3812 1436 swaetur 100 PID 1436 wrote to memory of 3812 1436 swaetur 100 PID 1436 wrote to memory of 3812 1436 swaetur 100 PID 1436 wrote to memory of 3812 1436 swaetur 100 PID 1436 wrote to memory of 3812 1436 swaetur 100
Processes
-
C:\Users\Admin\AppData\Local\Temp\a3f051bdf591c6d1def8dc9bc20c9627.exe"C:\Users\Admin\AppData\Local\Temp\a3f051bdf591c6d1def8dc9bc20c9627.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4956 -
C:\Users\Admin\AppData\Local\Temp\a3f051bdf591c6d1def8dc9bc20c9627.exe"C:\Users\Admin\AppData\Local\Temp\a3f051bdf591c6d1def8dc9bc20c9627.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2852
-
-
C:\Users\Admin\AppData\Roaming\swaeturC:\Users\Admin\AppData\Roaming\swaetur1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1436 -
C:\Users\Admin\AppData\Roaming\swaeturC:\Users\Admin\AppData\Roaming\swaetur2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:3812
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\swaetur
- Size 206KB
- SHA256 d902a88b896fa15de8d51951e3964f6b87bcf916a7ec4e17eae9163b66bcbbbf
- MD5 a3f051bdf591c6d1def8dc9bc20c9627
- SHA1 c5aab23ec7163596c0f6b271230168bf0d58f0da
- SHA512 858069247ce9377c4990c6b6bbc1e3f9939545fd5c5dcf0dcf887d78dc999c441e3e883cbbbd7aabf6e1060f920ba1acd65210457d32a695485cff439663f6db
- SSDEEP 3072:rUbYHtURgy50DT7JcI+36FI7uzR/HPi/kMK3DECm33LEkIE+dp:oMdLDTZFXzHa33QkId
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\swaetur
- Size 206KB
- SHA256 d902a88b896fa15de8d51951e3964f6b87bcf916a7ec4e17eae9163b66bcbbbf
- MD5 a3f051bdf591c6d1def8dc9bc20c9627
- SHA1 c5aab23ec7163596c0f6b271230168bf0d58f0da
- SHA512 858069247ce9377c4990c6b6bbc1e3f9939545fd5c5dcf0dcf887d78dc999c441e3e883cbbbd7aabf6e1060f920ba1acd65210457d32a695485cff439663f6db
- SSDEEP 3072:rUbYHtURgy50DT7JcI+36FI7uzR/HPi/kMK3DECm33LEkIE+dp:oMdLDTZFXzHa33QkId
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\swaetur
- Size 206KB
- SHA256 d902a88b896fa15de8d51951e3964f6b87bcf916a7ec4e17eae9163b66bcbbbf
- MD5 a3f051bdf591c6d1def8dc9bc20c9627
- SHA1 c5aab23ec7163596c0f6b271230168bf0d58f0da
- SHA512 858069247ce9377c4990c6b6bbc1e3f9939545fd5c5dcf0dcf887d78dc999c441e3e883cbbbd7aabf6e1060f920ba1acd65210457d32a695485cff439663f6db
- SSDEEP 3072:rUbYHtURgy50DT7JcI+36FI7uzR/HPi/kMK3DECm33LEkIE+dp:oMdLDTZFXzHa33QkId
- MD5 SHA1 SHA512 SSDEEP