Analysis
- max time kernel
151s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
04/02/2023, 12:18
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 191KB
- Sample230204-pgldfsgf2v
- SHA256 6b1240a3b53ac9be8992347c3ff354c5270d756c265c0b9587ba586f837ab889
- MD5 113a21345729c63ce7ba40961ddfe9dd
- SHA1 ca40914844dd8a52d4b90c8cedc4ef63adb711ae
- SHA512 48ff0ae37c3f7404764280fae587cee4376e884ff5fb2554e4d9c0546a78696ef1b94ffd57a71624fbca5c07c14fc77e37acbe626733cda527b2413a759d7e1e
- SSDEEP 3072:R6+JJTFGY/xLFk/rL0WhV55IRvi/bCc4W84yXr9O4b79:R6uL/xLW//0UR4W84y79Oo
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/4216-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2080-135-0x0000000000630000-0x0000000000639000-memory.dmp family_smokeloader behavioral2/memory/4216-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4216-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1580-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1580-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 4916 fuvfaav 1580 fuvfaav - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2080 set thread context of 4216 2080 file.exe 78 PID 4916 set thread context of 1580 4916 fuvfaav 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 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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fuvfaav Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fuvfaav Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fuvfaav - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4216 file.exe 4216 file.exe 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3052 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 4216 file.exe 1580 fuvfaav - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 3052 Process not Found Token: SeCreatePagefilePrivilege 3052 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2080 wrote to memory of 4216 2080 file.exe 78 PID 2080 wrote to memory of 4216 2080 file.exe 78 PID 2080 wrote to memory of 4216 2080 file.exe 78 PID 2080 wrote to memory of 4216 2080 file.exe 78 PID 2080 wrote to memory of 4216 2080 file.exe 78 PID 2080 wrote to memory of 4216 2080 file.exe 78 PID 4916 wrote to memory of 1580 4916 fuvfaav 88 PID 4916 wrote to memory of 1580 4916 fuvfaav 88 PID 4916 wrote to memory of 1580 4916 fuvfaav 88 PID 4916 wrote to memory of 1580 4916 fuvfaav 88 PID 4916 wrote to memory of 1580 4916 fuvfaav 88 PID 4916 wrote to memory of 1580 4916 fuvfaav 88
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:2080 -
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:4216
-
-
C:\Users\Admin\AppData\Roaming\fuvfaavC:\Users\Admin\AppData\Roaming\fuvfaav1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4916 -
C:\Users\Admin\AppData\Roaming\fuvfaavC:\Users\Admin\AppData\Roaming\fuvfaav2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:1580
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\fuvfaav
- Size 191KB
- SHA256 6b1240a3b53ac9be8992347c3ff354c5270d756c265c0b9587ba586f837ab889
- MD5 113a21345729c63ce7ba40961ddfe9dd
- SHA1 ca40914844dd8a52d4b90c8cedc4ef63adb711ae
- SHA512 48ff0ae37c3f7404764280fae587cee4376e884ff5fb2554e4d9c0546a78696ef1b94ffd57a71624fbca5c07c14fc77e37acbe626733cda527b2413a759d7e1e
- SSDEEP 3072:R6+JJTFGY/xLFk/rL0WhV55IRvi/bCc4W84yXr9O4b79:R6uL/xLW//0UR4W84y79Oo
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\fuvfaav
- Size 191KB
- SHA256 6b1240a3b53ac9be8992347c3ff354c5270d756c265c0b9587ba586f837ab889
- MD5 113a21345729c63ce7ba40961ddfe9dd
- SHA1 ca40914844dd8a52d4b90c8cedc4ef63adb711ae
- SHA512 48ff0ae37c3f7404764280fae587cee4376e884ff5fb2554e4d9c0546a78696ef1b94ffd57a71624fbca5c07c14fc77e37acbe626733cda527b2413a759d7e1e
- SSDEEP 3072:R6+JJTFGY/xLFk/rL0WhV55IRvi/bCc4W84yXr9O4b79:R6uL/xLW//0UR4W84y79Oo
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\fuvfaav
- Size 191KB
- SHA256 6b1240a3b53ac9be8992347c3ff354c5270d756c265c0b9587ba586f837ab889
- MD5 113a21345729c63ce7ba40961ddfe9dd
- SHA1 ca40914844dd8a52d4b90c8cedc4ef63adb711ae
- SHA512 48ff0ae37c3f7404764280fae587cee4376e884ff5fb2554e4d9c0546a78696ef1b94ffd57a71624fbca5c07c14fc77e37acbe626733cda527b2413a759d7e1e
- SSDEEP 3072:R6+JJTFGY/xLFk/rL0WhV55IRvi/bCc4W84yXr9O4b79:R6uL/xLW//0UR4W84y79Oo
- MD5 SHA1 SHA512 SSDEEP