Analysis
- max time kernel
151s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
26/01/2023, 01:28
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
windows7-x64
8 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 324KB
- Sample230126-bvn5lsde2w
- SHA256 d05909281684b70eafb7409e95744d4478735f115b4df2c61515fc2cfbca320a
- MD5 b78f6a52585c44e913f1f36b24e2fc55
- SHA1 43ce466565c8471dd8f6a147ae281ffdad3c54fb
- SHA512 3dd1618f2c2f76bfa30d03fd9070ad5ce0d6a5a86a5da39bf9a5bc24ab6c24fd641fea8c0b52c093c44aa117de50923df701041bfd72599ff9802194cb1ab9ef
- SSDEEP 3072:dUztCsngrkhLfT13Ev2oARwhnzT8iru3k9aJF63hZVT6yt5cPhIP3Y0+L4Oi/XcH:x4Lp3Evn/trJxnim3Y0+MOKXp1pv1UT
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/2176-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4860-135-0x0000000000600000-0x0000000000609000-memory.dmp family_smokeloader behavioral2/memory/2176-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2176-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4996-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4996-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 4228 bdvwche 4996 bdvwche - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4860 set thread context of 2176 4860 file.exe 79 PID 4228 set thread context of 4996 4228 bdvwche 82 - 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 bdvwche Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI bdvwche Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI bdvwche - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2176 file.exe 2176 file.exe 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found 2152 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2152 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2176 file.exe 4996 bdvwche - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2152 Process not Found Token: SeCreatePagefilePrivilege 2152 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4860 wrote to memory of 2176 4860 file.exe 79 PID 4860 wrote to memory of 2176 4860 file.exe 79 PID 4860 wrote to memory of 2176 4860 file.exe 79 PID 4860 wrote to memory of 2176 4860 file.exe 79 PID 4860 wrote to memory of 2176 4860 file.exe 79 PID 4860 wrote to memory of 2176 4860 file.exe 79 PID 4228 wrote to memory of 4996 4228 bdvwche 82 PID 4228 wrote to memory of 4996 4228 bdvwche 82 PID 4228 wrote to memory of 4996 4228 bdvwche 82 PID 4228 wrote to memory of 4996 4228 bdvwche 82 PID 4228 wrote to memory of 4996 4228 bdvwche 82 PID 4228 wrote to memory of 4996 4228 bdvwche 82
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:4860 -
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:2176
-
-
C:\Users\Admin\AppData\Roaming\bdvwcheC:\Users\Admin\AppData\Roaming\bdvwche1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4228 -
C:\Users\Admin\AppData\Roaming\bdvwcheC:\Users\Admin\AppData\Roaming\bdvwche2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:4996
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\bdvwche
- Size 324KB
- SHA256 d05909281684b70eafb7409e95744d4478735f115b4df2c61515fc2cfbca320a
- MD5 b78f6a52585c44e913f1f36b24e2fc55
- SHA1 43ce466565c8471dd8f6a147ae281ffdad3c54fb
- SHA512 3dd1618f2c2f76bfa30d03fd9070ad5ce0d6a5a86a5da39bf9a5bc24ab6c24fd641fea8c0b52c093c44aa117de50923df701041bfd72599ff9802194cb1ab9ef
- SSDEEP 3072:dUztCsngrkhLfT13Ev2oARwhnzT8iru3k9aJF63hZVT6yt5cPhIP3Y0+L4Oi/XcH:x4Lp3Evn/trJxnim3Y0+MOKXp1pv1UT
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\bdvwche
- Size 324KB
- SHA256 d05909281684b70eafb7409e95744d4478735f115b4df2c61515fc2cfbca320a
- MD5 b78f6a52585c44e913f1f36b24e2fc55
- SHA1 43ce466565c8471dd8f6a147ae281ffdad3c54fb
- SHA512 3dd1618f2c2f76bfa30d03fd9070ad5ce0d6a5a86a5da39bf9a5bc24ab6c24fd641fea8c0b52c093c44aa117de50923df701041bfd72599ff9802194cb1ab9ef
- SSDEEP 3072:dUztCsngrkhLfT13Ev2oARwhnzT8iru3k9aJF63hZVT6yt5cPhIP3Y0+L4Oi/XcH:x4Lp3Evn/trJxnim3Y0+MOKXp1pv1UT
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\bdvwche
- Size 324KB
- SHA256 d05909281684b70eafb7409e95744d4478735f115b4df2c61515fc2cfbca320a
- MD5 b78f6a52585c44e913f1f36b24e2fc55
- SHA1 43ce466565c8471dd8f6a147ae281ffdad3c54fb
- SHA512 3dd1618f2c2f76bfa30d03fd9070ad5ce0d6a5a86a5da39bf9a5bc24ab6c24fd641fea8c0b52c093c44aa117de50923df701041bfd72599ff9802194cb1ab9ef
- SSDEEP 3072:dUztCsngrkhLfT13Ev2oARwhnzT8iru3k9aJF63hZVT6yt5cPhIP3Y0+L4Oi/XcH:x4Lp3Evn/trJxnim3Y0+MOKXp1pv1UT
- MD5 SHA1 SHA512 SSDEEP