Analysis
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max time kernel
150s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
17-02-2024 07:30
Static task
static1
Behavioral task
behavioral1
Sample
3be6dbda5b7e9826fe8c4793051b2ac1e9ddd1e3cc7e56e5d4a9c612414a5daf.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
3be6dbda5b7e9826fe8c4793051b2ac1e9ddd1e3cc7e56e5d4a9c612414a5daf.exe
Resource
win10v2004-20231215-en
General
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Target
3be6dbda5b7e9826fe8c4793051b2ac1e9ddd1e3cc7e56e5d4a9c612414a5daf.exe
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Size
248KB
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MD5
cf2764813e89728cd7c18b6cd78327b9
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SHA1
6c6c48fb5c7f2f19fddeac82d63bdf67d6ee474e
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SHA256
3be6dbda5b7e9826fe8c4793051b2ac1e9ddd1e3cc7e56e5d4a9c612414a5daf
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SHA512
362a220086a3510b18eecc8034d41e6b1c1fb24415d3da972aac0f94e154e27c40252b49e5b64fa090ffd50c339ee5d2f24da9743fdbd96d01fc569546f7c2d8
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SSDEEP
6144:uZ/hMtxJK3sjADoUXdhhwjqVJojKr1WFAko:U/hMtx83sjA8UXJaqVJDrX
Malware Config
Extracted
smokeloader
pub3
Extracted
smokeloader
2022
http://sjyey.com/tmp/index.php
http://babonwo.ru/tmp/index.php
http://mth.com.ua/tmp/index.php
http://piratia.pw/tmp/index.php
http://go-piratia.ru/tmp/index.php
Extracted
amadey
4.14
http://anfesq.com
http://cbinr.com
http://rimakc.ru
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install_dir
68fd3d7ade
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install_file
Utsysc.exe
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strings_key
27ec7fd6f50f63b8af0c1d3deefcc8fe
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url_paths
/forum/index.php
Signatures
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Downloads MZ/PE file
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
C0C0.exeUtsysc.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation C0C0.exe Key value queried \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation Utsysc.exe -
Deletes itself 1 IoCs
Processes:
pid process 3412 -
Executes dropped EXE 4 IoCs
Processes:
C0C0.exeUtsysc.exeUtsysc.exeUtsysc.exepid process 736 C0C0.exe 4120 Utsysc.exe 4964 Utsysc.exe 1732 Utsysc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 11 IoCs
Processes:
WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exepid pid_target process target process 1000 736 WerFault.exe C0C0.exe 2308 736 WerFault.exe C0C0.exe 5092 736 WerFault.exe C0C0.exe 4024 736 WerFault.exe C0C0.exe 1568 736 WerFault.exe C0C0.exe 2228 4120 WerFault.exe Utsysc.exe 1440 4120 WerFault.exe Utsysc.exe 3004 4120 WerFault.exe Utsysc.exe 3892 4120 WerFault.exe Utsysc.exe 3116 4964 WerFault.exe Utsysc.exe 4580 1732 WerFault.exe Utsysc.exe -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
3be6dbda5b7e9826fe8c4793051b2ac1e9ddd1e3cc7e56e5d4a9c612414a5daf.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 3be6dbda5b7e9826fe8c4793051b2ac1e9ddd1e3cc7e56e5d4a9c612414a5daf.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 3be6dbda5b7e9826fe8c4793051b2ac1e9ddd1e3cc7e56e5d4a9c612414a5daf.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 3be6dbda5b7e9826fe8c4793051b2ac1e9ddd1e3cc7e56e5d4a9c612414a5daf.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
3be6dbda5b7e9826fe8c4793051b2ac1e9ddd1e3cc7e56e5d4a9c612414a5daf.exepid process 4220 3be6dbda5b7e9826fe8c4793051b2ac1e9ddd1e3cc7e56e5d4a9c612414a5daf.exe 4220 3be6dbda5b7e9826fe8c4793051b2ac1e9ddd1e3cc7e56e5d4a9c612414a5daf.exe 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 3412 -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
3be6dbda5b7e9826fe8c4793051b2ac1e9ddd1e3cc7e56e5d4a9c612414a5daf.exepid process 4220 3be6dbda5b7e9826fe8c4793051b2ac1e9ddd1e3cc7e56e5d4a9c612414a5daf.exe -
Suspicious use of AdjustPrivilegeToken 24 IoCs
Processes:
description pid process Token: SeShutdownPrivilege 3412 Token: SeCreatePagefilePrivilege 3412 Token: SeShutdownPrivilege 3412 Token: SeCreatePagefilePrivilege 3412 Token: SeShutdownPrivilege 3412 Token: SeCreatePagefilePrivilege 3412 Token: SeShutdownPrivilege 3412 Token: SeCreatePagefilePrivilege 3412 Token: SeShutdownPrivilege 3412 Token: SeCreatePagefilePrivilege 3412 Token: SeShutdownPrivilege 3412 Token: SeCreatePagefilePrivilege 3412 Token: SeShutdownPrivilege 3412 Token: SeCreatePagefilePrivilege 3412 Token: SeShutdownPrivilege 3412 Token: SeCreatePagefilePrivilege 3412 Token: SeShutdownPrivilege 3412 Token: SeCreatePagefilePrivilege 3412 Token: SeShutdownPrivilege 3412 Token: SeCreatePagefilePrivilege 3412 Token: SeShutdownPrivilege 3412 Token: SeCreatePagefilePrivilege 3412 Token: SeShutdownPrivilege 3412 Token: SeCreatePagefilePrivilege 3412 -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
C0C0.exeUtsysc.exedescription pid process target process PID 3412 wrote to memory of 736 3412 C0C0.exe PID 3412 wrote to memory of 736 3412 C0C0.exe PID 3412 wrote to memory of 736 3412 C0C0.exe PID 736 wrote to memory of 4120 736 C0C0.exe Utsysc.exe PID 736 wrote to memory of 4120 736 C0C0.exe Utsysc.exe PID 736 wrote to memory of 4120 736 C0C0.exe Utsysc.exe PID 4120 wrote to memory of 1812 4120 Utsysc.exe schtasks.exe PID 4120 wrote to memory of 1812 4120 Utsysc.exe schtasks.exe PID 4120 wrote to memory of 1812 4120 Utsysc.exe schtasks.exe -
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
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C:\Users\Admin\AppData\Local\Temp\3be6dbda5b7e9826fe8c4793051b2ac1e9ddd1e3cc7e56e5d4a9c612414a5daf.exe"C:\Users\Admin\AppData\Local\Temp\3be6dbda5b7e9826fe8c4793051b2ac1e9ddd1e3cc7e56e5d4a9c612414a5daf.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4220
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C:\Users\Admin\AppData\Local\Temp\C0C0.exeC:\Users\Admin\AppData\Local\Temp\C0C0.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:736 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 5962⤵
- Program crash
PID:1000 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 5922⤵
- Program crash
PID:2308 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 7242⤵
- Program crash
PID:5092 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 7602⤵
- Program crash
PID:4024 -
C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe"C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4120 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4120 -s 6163⤵
- Program crash
PID:2228 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4120 -s 7283⤵
- Program crash
PID:1440 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4120 -s 8123⤵
- Program crash
PID:3004 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN Utsysc.exe /TR "C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe" /F3⤵
- Creates scheduled task(s)
PID:1812 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4120 -s 9163⤵
- Program crash
PID:3892 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 736 -s 13802⤵
- Program crash
PID:1568
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 736 -ip 7361⤵PID:4924
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 736 -ip 7361⤵PID:4352
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 736 -ip 7361⤵PID:2084
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 736 -ip 7361⤵PID:1752
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 736 -ip 7361⤵PID:1536
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4120 -ip 41201⤵PID:624
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4120 -ip 41201⤵PID:1832
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4120 -ip 41201⤵PID:1204
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4120 -ip 41201⤵PID:2964
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C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exeC:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe1⤵
- Executes dropped EXE
PID:4964 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4964 -s 4442⤵
- Program crash
PID:3116
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4964 -ip 49641⤵PID:5088
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C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exeC:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe1⤵
- Executes dropped EXE
PID:1732 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1732 -s 4442⤵
- Program crash
PID:4580
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1732 -ip 17321⤵PID:4528
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
361KB
MD5b6c1df2e721d3088438c06671de3127a
SHA12a95143e66673841dc6338bf1f09d9aceedc1bf5
SHA2565bc9960a7aca2d039602f7d6a4828ae277665396974dd1227e414c1dc3f2cb69
SHA512602df6897a406fee67957246096f6820e4a79fb8511f644e94ef17c30cb3bfbb124998849145997d10a841c95d409c349c5c81f66c0c73c277c07137ce0d2a4a