Analysis
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max time kernel
180s -
max time network
207s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
11-05-2022 02:27
Static task
static1
Behavioral task
behavioral1
Sample
2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6.exe
Resource
win10v2004-20220414-en
General
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Target
2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6.exe
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Size
329KB
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MD5
e5f43915f2c0d360df5f85384bf558af
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SHA1
031ec5f080777aadc8eebc7736ad631882702eb4
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SHA256
2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6
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SHA512
a3bfeb57ae27c93e280ac3be44ed37871f04985d78a540d0351231c04dc8e7acf5ccc2ee7254286a3b7117cbb0fed89ae463de6652b83173de4e9b8e3f2db308
Malware Config
Signatures
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OnlyLogger
A tiny loader that uses IPLogger to get its payload.
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OnlyLogger Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/2996-131-0x0000000002150000-0x0000000002196000-memory.dmp family_onlylogger behavioral2/memory/2996-132-0x0000000000400000-0x00000000004F8000-memory.dmp family_onlylogger -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation 2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 9 IoCs
Processes:
WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exepid pid_target Process procid_target 2168 2996 WerFault.exe 79 3328 2996 WerFault.exe 79 2216 2996 WerFault.exe 79 3780 2996 WerFault.exe 79 3880 2996 WerFault.exe 79 1728 2996 WerFault.exe 79 1504 2996 WerFault.exe 79 1532 2996 WerFault.exe 79 3108 2996 WerFault.exe 79 -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid Process 3364 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid Process Token: SeDebugPrivilege 3364 taskkill.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6.execmd.exedescription pid Process procid_target PID 2996 wrote to memory of 1708 2996 2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6.exe 108 PID 2996 wrote to memory of 1708 2996 2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6.exe 108 PID 2996 wrote to memory of 1708 2996 2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6.exe 108 PID 1708 wrote to memory of 3364 1708 cmd.exe 110 PID 1708 wrote to memory of 3364 1708 cmd.exe 110 PID 1708 wrote to memory of 3364 1708 cmd.exe 110
Processes
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C:\Users\Admin\AppData\Local\Temp\2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6.exe"C:\Users\Admin\AppData\Local\Temp\2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2996 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 6122⤵
- Program crash
PID:2168
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 6522⤵
- Program crash
PID:3328
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 7642⤵
- Program crash
PID:2216
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 7722⤵
- Program crash
PID:3780
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 10642⤵
- Program crash
PID:3880
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 11042⤵
- Program crash
PID:1728
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 10202⤵
- Program crash
PID:1504
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 11002⤵
- Program crash
PID:1532
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:1708 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6.exe" /f3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3364
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 12442⤵
- Program crash
PID:3108
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2996 -ip 29961⤵PID:1320
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2996 -ip 29961⤵PID:2156
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2996 -ip 29961⤵PID:1420
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 2996 -ip 29961⤵PID:112
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2996 -ip 29961⤵PID:1212
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 2996 -ip 29961⤵PID:3364
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2996 -ip 29961⤵PID:1688
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 2996 -ip 29961⤵PID:820
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2996 -ip 29961⤵PID:1680