Analysis
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max time kernel
96s -
max time network
103s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
21-09-2024 21:11
Static task
static1
Behavioral task
behavioral1
Sample
univ.exe
Resource
win7-20240903-en
General
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Target
univ.exe
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Size
447KB
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MD5
877578aa859949f65846c834ce2740a1
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SHA1
948c5764c2f4edae98c162cae1fc9839a9f2e1f2
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SHA256
dd116354036dca800f4b1be5fde7e338b6d647b468323d3df828a7180e110d96
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SHA512
07d1cbbe9b4bb338c961af05d5f6791e8f94d06aff642728a091f059e248e7f4f0e096d1b49c6f4a59ff063246fc61083a2b097132516bcf752d9822dd90335e
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SSDEEP
6144:zELuwysoySGLobNl2kVJIkGd6tWqnb0FyggNifGi/1oD5zlW5FXCnFk:zszysoydLobZVJIkGdSwyNMS5hoSC
Malware Config
Extracted
gcleaner
80.66.75.114
45.91.200.135
Signatures
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Downloads MZ/PE file
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
univ.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation univ.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 9 IoCs
Processes:
WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exepid pid_target process target process 3336 2700 WerFault.exe univ.exe 2636 2700 WerFault.exe univ.exe 3296 2700 WerFault.exe univ.exe 3512 2700 WerFault.exe univ.exe 636 2700 WerFault.exe univ.exe 1116 2700 WerFault.exe univ.exe 1816 2700 WerFault.exe univ.exe 2328 2700 WerFault.exe univ.exe 4220 2700 WerFault.exe univ.exe -
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
univ.execmd.exetaskkill.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language univ.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language taskkill.exe -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 3492 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 3492 taskkill.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
univ.execmd.exedescription pid process target process PID 2700 wrote to memory of 2500 2700 univ.exe cmd.exe PID 2700 wrote to memory of 2500 2700 univ.exe cmd.exe PID 2700 wrote to memory of 2500 2700 univ.exe cmd.exe PID 2500 wrote to memory of 3492 2500 cmd.exe taskkill.exe PID 2500 wrote to memory of 3492 2500 cmd.exe taskkill.exe PID 2500 wrote to memory of 3492 2500 cmd.exe taskkill.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\univ.exe"C:\Users\Admin\AppData\Local\Temp\univ.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2700 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2700 -s 4562⤵
- Program crash
PID:3336 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2700 -s 7682⤵
- Program crash
PID:2636 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2700 -s 7882⤵
- Program crash
PID:3296 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2700 -s 8282⤵
- Program crash
PID:3512 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2700 -s 7882⤵
- Program crash
PID:636 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2700 -s 9282⤵
- Program crash
PID:1116 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2700 -s 9282⤵
- Program crash
PID:1816 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2700 -s 15802⤵
- Program crash
PID:2328 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "univ.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\univ.exe" & exit2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2500 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "univ.exe" /f3⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3492 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2700 -s 16082⤵
- Program crash
PID:4220
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2700 -ip 27001⤵PID:3332
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2700 -ip 27001⤵PID:4252
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 2700 -ip 27001⤵PID:1800
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 2700 -ip 27001⤵PID:3208
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 2700 -ip 27001⤵PID:1652
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 2700 -ip 27001⤵PID:3564
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2700 -ip 27001⤵PID:4708
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 2700 -ip 27001⤵PID:4636
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2700 -ip 27001⤵PID:1052
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1B
MD5cfcd208495d565ef66e7dff9f98764da
SHA1b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA2565feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA51231bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99