Analysis
- max time kernel
150s - max time network
136s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
21/01/2023, 02:00
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
8 signatures
150 seconds
General
- Target file.exe
- Size 329KB
- Sample230121-cez3lsad23
- SHA256 c7c7c8ca1c12d2460133c8df2c2995a9755abf342e91c8bb2bb8c4f45d1bc97f
- MD5 75e85a95793ba3e7a0361151fd0441b9
- SHA1 ccf08317bc5e0ee39fd8d95a3d724eed03412472
- SHA512 ee496366ff5a8317ad2a71d479d94351214131b4c47ab2342034db9e23ff9fbad3c0018823456a295c9f5703294307655e61e48f37f66bea9552b66d07d5b91a
- SSDEEP 3072:RtbYL0xCZI1R1Tsdpm80dxCj7dxqsiUO5tZAgBUDkCQ2Eg9BSpx2JFSejIruW9R:4LAC0T7dxmasiUO5EgCoZsB3LOxr
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4332-134-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2796-135-0x0000000002050000-0x0000000002059000-memory.dmp family_smokeloader behavioral2/memory/4332-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4332-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2796 set thread context of 4332 2796 file.exe 81 - 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 4332 file.exe 4332 file.exe 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found 2944 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2944 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4332 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2796 wrote to memory of 4332 2796 file.exe 81 PID 2796 wrote to memory of 4332 2796 file.exe 81 PID 2796 wrote to memory of 4332 2796 file.exe 81 PID 2796 wrote to memory of 4332 2796 file.exe 81 PID 2796 wrote to memory of 4332 2796 file.exe 81 PID 2796 wrote to memory of 4332 2796 file.exe 81
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:2796 -
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:4332
-