Analysis
- max time kernel
150s - max time network
30s - platform
windows7_x64 - resource
win7-20221111-en - resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system - submitted
22/12/2022, 09:50
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 331KB
- Sample221222-ltx18sec48
- SHA256 98e9d0affe19122fa5fd6c49e005305d10f121fdc79860dd15a56c32e3faa13b
- MD5 cdebb3349f336f7ced8e5f2b045a6c4e
- SHA1 0fee162504f35cbbbedc2599d50b8baae47fb422
- SHA512 2354253d11cc6c5eb92d096047e7e1117603c73b8cbdc0ed5171c22f073cae3c72b9ab24ff0b617e6318e1f9f7d805682c9d620cfac5500463fec0c3a24ac6c5
- SSDEEP 6144:TiY9LnLXmbaIlg6Veg3OmgTwpQ61hJFIJfVAVrwU+:+M7ibakg6VTOyq6PHgtyQ
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 5 IoCs
resource yara_rule behavioral1/memory/1120-54-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/1120-55-0x0000000000402DD8-mapping.dmp family_smokeloader behavioral1/memory/1244-58-0x0000000000220000-0x0000000000229000-memory.dmp family_smokeloader behavioral1/memory/1120-59-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/1120-60-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1244 set thread context of 1120 1244 file.exe 28 - 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 1120 file.exe 1120 file.exe 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found 1188 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1188 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1120 file.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1244 wrote to memory of 1120 1244 file.exe 28 PID 1244 wrote to memory of 1120 1244 file.exe 28 PID 1244 wrote to memory of 1120 1244 file.exe 28 PID 1244 wrote to memory of 1120 1244 file.exe 28 PID 1244 wrote to memory of 1120 1244 file.exe 28 PID 1244 wrote to memory of 1120 1244 file.exe 28 PID 1244 wrote to memory of 1120 1244 file.exe 28
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:1244 -
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:1120
-