Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
03/03/2023, 01:24
Static task
static1
Behavioral task
behavioral1
Sample
setupsoft.exe
Resource
win7-20230220-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
setupsoft.exe
Resource
win10v2004-20230220-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target setupsoft.exe
- Size 276KB
- Sample230303-bsdabsfc4y
- SHA256 c77c2a169abc41f1f7afd50c62fcd1e3b3a3998edf4ff21b1dbcb9e2412cc363
- MD5 ff87ee322890d662cabd69a777361c49
- SHA1 03034be07490405bcbae845b706a11cd24997dbb
- SHA512 c53b5b4860453fd192ea77fc1d4f3e7c90e9eed836dd3bae2bb85d7317411be150362aa4d29ace8d1e5261f4f5babc7a9501ba6e96dc041ae805f73858b9f39f
- SSDEEP 3072:FynGlhEu9LqTXFPY7wekUaCNTo0CkBXfmcsntKHDc0WVxmBMVCNM/Y/DnUU:symu9LqpPcpo8v364HQuBMCgan
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
smokeloader
Version
-
2020
C2
-
http://host-file-host6.com/
-
http://host-host-file8.com/
rc4.i32
rc4.i32
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/3592-134-0x0000000002E50000-0x0000000002E59000-memory.dmp family_smokeloader behavioral2/memory/1936-135-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1936-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1936-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3592 set thread context of 1936 3592 setupsoft.exe 85 - 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 setupsoft.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI setupsoft.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI setupsoft.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1936 setupsoft.exe 1936 setupsoft.exe 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found 3148 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3148 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1936 setupsoft.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3592 wrote to memory of 1936 3592 setupsoft.exe 85 PID 3592 wrote to memory of 1936 3592 setupsoft.exe 85 PID 3592 wrote to memory of 1936 3592 setupsoft.exe 85 PID 3592 wrote to memory of 1936 3592 setupsoft.exe 85 PID 3592 wrote to memory of 1936 3592 setupsoft.exe 85 PID 3592 wrote to memory of 1936 3592 setupsoft.exe 85 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\setupsoft.exe"C:\Users\Admin\AppData\Local\Temp\setupsoft.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3592 -
C:\Users\Admin\AppData\Local\Temp\setupsoft.exe"C:\Users\Admin\AppData\Local\Temp\setupsoft.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1936
-