Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
04-01-2021 09:31
Static task
static1
Behavioral task
behavioral1
Sample
sr6vn.bin.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
sr6vn.bin.exe
Resource
win10v20201028
General
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Target
sr6vn.bin.exe
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Size
251KB
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MD5
23627e96f5260b8e1d8fdc3da9250126
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SHA1
d68f46e0f9154972b5a0f1dae8e4380a8d227527
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SHA256
fed230e1f92000a5860c06228346b7925d8cce2ac1ebc1048ed5c26576c830f7
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SHA512
395afa4073a58f2644cb10923e7ed9cb5098ab44f8c4bb5efb3bf4c70f4b5f132511ada4d659667d64a743e18a3751082ce84b85de61566987859f2d29348398
Malware Config
Extracted
smokeloader
2020
http://etasuklavish.today/
http://mragyzmachnobesdi.today/
http://kimchinikuzims.today/
http://slacvostinrius.today/
http://straponuliusyn.today/
http://grammmdinss.today/
http://viprasputinsd.chimkent.su/
http://lupadypa.dagestan.su/
http://stoknolimchin.exnet.su/
http://musaroprovadnikov.live/
http://teemforyourexprensiti.life/
http://stolkgolmishutich.termez.su/
http://roompampamgandish.wtf/
Signatures
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
Processes:
WerFault.exedescription pid process target process PID 632 created 3096 632 WerFault.exe gtutvtt -
Executes dropped EXE 1 IoCs
Processes:
gtutvttpid process 3096 gtutvtt -
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\gtutvtt upx C:\Users\Admin\AppData\Roaming\gtutvtt upx behavioral2/memory/632-12-0x0000000004280000-0x0000000004281000-memory.dmp upx -
Deletes itself 1 IoCs
Processes:
pid process 3028 -
Loads dropped DLL 1 IoCs
Processes:
sr6vn.bin.exepid process 4688 sr6vn.bin.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 632 3096 WerFault.exe gtutvtt -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
sr6vn.bin.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI sr6vn.bin.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI sr6vn.bin.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI sr6vn.bin.exe -
Suspicious behavior: EnumeratesProcesses 2631 IoCs
Processes:
sr6vn.bin.exepid process 4688 sr6vn.bin.exe 4688 sr6vn.bin.exe 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 3028 -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
sr6vn.bin.exepid process 4688 sr6vn.bin.exe -
Suspicious use of AdjustPrivilegeToken 9 IoCs
Processes:
WerFault.exedescription pid process Token: SeRestorePrivilege 632 WerFault.exe Token: SeBackupPrivilege 632 WerFault.exe Token: SeDebugPrivilege 632 WerFault.exe Token: SeShutdownPrivilege 3028 Token: SeCreatePagefilePrivilege 3028 Token: SeShutdownPrivilege 3028 Token: SeCreatePagefilePrivilege 3028 Token: SeShutdownPrivilege 3028 Token: SeCreatePagefilePrivilege 3028 -
Suspicious use of UnmapMainImage 1 IoCs
Processes:
pid process 3028
Processes
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C:\Users\Admin\AppData\Local\Temp\sr6vn.bin.exe"C:\Users\Admin\AppData\Local\Temp\sr6vn.bin.exe"1⤵
- Loads dropped DLL
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Roaming\gtutvttC:\Users\Admin\AppData\Roaming\gtutvtt1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3096 -s 2682⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Program crash
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\2F6.tmpMD5
50741b3f2d7debf5d2bed63d88404029
SHA156210388a627b926162b36967045be06ffb1aad3
SHA256f2f8732ae464738372ff274b7e481366cecdd2337210d4a3cbcd089c958a730c
SHA512fac6bfe35b1ee08b3d42d330516a260d9cdb4a90bbb0491411a583029b92a59d20af3552372ea8fb3f59442b3945bf524ef284127f397ae7179467080be8e9b3
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C:\Users\Admin\AppData\Roaming\gtutvttMD5
23627e96f5260b8e1d8fdc3da9250126
SHA1d68f46e0f9154972b5a0f1dae8e4380a8d227527
SHA256fed230e1f92000a5860c06228346b7925d8cce2ac1ebc1048ed5c26576c830f7
SHA512395afa4073a58f2644cb10923e7ed9cb5098ab44f8c4bb5efb3bf4c70f4b5f132511ada4d659667d64a743e18a3751082ce84b85de61566987859f2d29348398
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C:\Users\Admin\AppData\Roaming\gtutvttMD5
23627e96f5260b8e1d8fdc3da9250126
SHA1d68f46e0f9154972b5a0f1dae8e4380a8d227527
SHA256fed230e1f92000a5860c06228346b7925d8cce2ac1ebc1048ed5c26576c830f7
SHA512395afa4073a58f2644cb10923e7ed9cb5098ab44f8c4bb5efb3bf4c70f4b5f132511ada4d659667d64a743e18a3751082ce84b85de61566987859f2d29348398
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\Users\Admin\AppData\Local\Temp\2F6.tmpMD5
50741b3f2d7debf5d2bed63d88404029
SHA156210388a627b926162b36967045be06ffb1aad3
SHA256f2f8732ae464738372ff274b7e481366cecdd2337210d4a3cbcd089c958a730c
SHA512fac6bfe35b1ee08b3d42d330516a260d9cdb4a90bbb0491411a583029b92a59d20af3552372ea8fb3f59442b3945bf524ef284127f397ae7179467080be8e9b3
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memory/632-11-0x0000000004280000-0x0000000004281000-memory.dmpFilesize
4KB
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memory/632-12-0x0000000004280000-0x0000000004281000-memory.dmpFilesize
4KB
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memory/3028-5-0x0000000000F10000-0x0000000000F26000-memory.dmpFilesize
88KB
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memory/3096-8-0x00000000054C1000-0x00000000054C2000-memory.dmpFilesize
4KB
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memory/3096-9-0x0000000005790000-0x0000000005791000-memory.dmpFilesize
4KB
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memory/4688-2-0x0000000005381000-0x0000000005382000-memory.dmpFilesize
4KB
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memory/4688-3-0x0000000005470000-0x0000000005471000-memory.dmpFilesize
4KB