Analysis
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max time kernel
150s -
max time network
150s -
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 05:12
Static task
static1
Behavioral task
behavioral1
Sample
a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe
Resource
win10v2004-20231215-en
General
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Target
a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe
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Size
206KB
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MD5
2f8702ecc114c719d255666b58ffbcce
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SHA1
22d9c9a6b8bd9606dcaa6476bf050036f161bd9a
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SHA256
a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0
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SHA512
6acd34c1caba5117632ba67340c06d8a7959433b01f4c37e290d2d18ba9cff4b69f1192e4bd53105828e415254d9a03f87c522caae9d932e4ab85fd4eaef8de1
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SSDEEP
3072:a0caM1j1m/5CrL7IlJzC+27iUjk9yoDF/jd/NTXja4x:a0cft8fHzCjoDF5pu4
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:
E213.exeUtsysc.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation E213.exe Key value queried \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation Utsysc.exe -
Deletes itself 1 IoCs
Processes:
pid process 3428 -
Executes dropped EXE 3 IoCs
Processes:
E213.exeUtsysc.exeUtsysc.exepid process 2272 E213.exe 4828 Utsysc.exe 1660 Utsysc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 10 IoCs
Processes:
WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exepid pid_target process target process 3688 2272 WerFault.exe E213.exe 4628 2272 WerFault.exe E213.exe 1520 2272 WerFault.exe E213.exe 1112 2272 WerFault.exe E213.exe 3696 2272 WerFault.exe E213.exe 1700 4828 WerFault.exe Utsysc.exe 1608 4828 WerFault.exe Utsysc.exe 4328 4828 WerFault.exe Utsysc.exe 3740 4828 WerFault.exe Utsysc.exe 2772 1660 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:
a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.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:
a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exepid process 2532 a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe 2532 a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 3428 -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exepid process 2532 a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe -
Suspicious use of AdjustPrivilegeToken 22 IoCs
Processes:
description pid process Token: SeShutdownPrivilege 3428 Token: SeCreatePagefilePrivilege 3428 Token: SeShutdownPrivilege 3428 Token: SeCreatePagefilePrivilege 3428 Token: SeShutdownPrivilege 3428 Token: SeCreatePagefilePrivilege 3428 Token: SeShutdownPrivilege 3428 Token: SeCreatePagefilePrivilege 3428 Token: SeShutdownPrivilege 3428 Token: SeCreatePagefilePrivilege 3428 Token: SeShutdownPrivilege 3428 Token: SeCreatePagefilePrivilege 3428 Token: SeShutdownPrivilege 3428 Token: SeCreatePagefilePrivilege 3428 Token: SeShutdownPrivilege 3428 Token: SeCreatePagefilePrivilege 3428 Token: SeShutdownPrivilege 3428 Token: SeCreatePagefilePrivilege 3428 Token: SeShutdownPrivilege 3428 Token: SeCreatePagefilePrivilege 3428 Token: SeShutdownPrivilege 3428 Token: SeCreatePagefilePrivilege 3428 -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
E213.exeUtsysc.exedescription pid process target process PID 3428 wrote to memory of 2272 3428 E213.exe PID 3428 wrote to memory of 2272 3428 E213.exe PID 3428 wrote to memory of 2272 3428 E213.exe PID 2272 wrote to memory of 4828 2272 E213.exe Utsysc.exe PID 2272 wrote to memory of 4828 2272 E213.exe Utsysc.exe PID 2272 wrote to memory of 4828 2272 E213.exe Utsysc.exe PID 4828 wrote to memory of 1548 4828 Utsysc.exe schtasks.exe PID 4828 wrote to memory of 1548 4828 Utsysc.exe schtasks.exe PID 4828 wrote to memory of 1548 4828 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\a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe"C:\Users\Admin\AppData\Local\Temp\a78d865a3b1900279adc9b6ca398c4e46710c552694b2c0bca30280d377019d0.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2532
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C:\Users\Admin\AppData\Local\Temp\E213.exeC:\Users\Admin\AppData\Local\Temp\E213.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2272 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 6002⤵
- Program crash
PID:3688 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 5962⤵
- Program crash
PID:4628 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 6962⤵
- Program crash
PID:1520 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 7482⤵
- Program crash
PID:1112 -
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:4828 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4828 -s 6163⤵
- Program crash
PID:1700 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4828 -s 7603⤵
- Program crash
PID:1608 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4828 -s 8283⤵
- Program crash
PID:4328 -
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:1548 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4828 -s 9563⤵
- Program crash
PID:3740 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 12402⤵
- Program crash
PID:3696
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2272 -ip 22721⤵PID:2268
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2272 -ip 22721⤵PID:4508
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2272 -ip 22721⤵PID:1868
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2272 -ip 22721⤵PID:2504
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2272 -ip 22721⤵PID:1240
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4828 -ip 48281⤵PID:2616
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4828 -ip 48281⤵PID:820
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4828 -ip 48281⤵PID:3440
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4828 -ip 48281⤵PID:3468
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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:1660 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1660 -s 4442⤵
- Program crash
PID:2772
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1660 -ip 16601⤵PID:3540
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
361KB
MD5b6c1df2e721d3088438c06671de3127a
SHA12a95143e66673841dc6338bf1f09d9aceedc1bf5
SHA2565bc9960a7aca2d039602f7d6a4828ae277665396974dd1227e414c1dc3f2cb69
SHA512602df6897a406fee67957246096f6820e4a79fb8511f644e94ef17c30cb3bfbb124998849145997d10a841c95d409c349c5c81f66c0c73c277c07137ce0d2a4a