Analysis
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max time kernel
91s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
29-03-2023 06:44
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20230220-en
General
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Target
file.exe
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Size
1.9MB
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MD5
fc794b29d95a68bfded428f6821f63cc
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SHA1
9c3df27f309be888ba0a34cad6a48bd72502477e
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SHA256
4418892f1be6d6e2358595636cf30ed9a56ef3a5b50b9421f03791b463542e62
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SHA512
08d4f1216d02445db723da002f3743f690f51a611f3f405d5d02b8fa9530e6feb0c65a59557e9f4bdb7d2ca2cc660def38c85c13fcc9bc87a80f63b4982dfad2
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SSDEEP
49152:EGlJfs46H8IW9Xc2QDyBVhSCmBaJCxY9xZ0v2J233vPi5dlLYp:5pIWNc2nNmsJCqx+n3vIPYp
Malware Config
Extracted
gcleaner
45.12.253.56
45.12.253.72
45.12.253.98
45.12.253.75
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
FRec329.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation FRec329.exe -
Executes dropped EXE 3 IoCs
Processes:
is-4VEQO.tmpFRec329.exebWgcBMqVwT.exepid process 4904 is-4VEQO.tmp 2996 FRec329.exe 3132 bWgcBMqVwT.exe -
Loads dropped DLL 1 IoCs
Processes:
is-4VEQO.tmppid process 4904 is-4VEQO.tmp -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in Program Files directory 9 IoCs
Processes:
is-4VEQO.tmpdescription ioc process File created C:\Program Files (x86)\FJIsoftFR\FRec329\unins000.dat is-4VEQO.tmp File created C:\Program Files (x86)\FJIsoftFR\FRec329\is-HJO4D.tmp is-4VEQO.tmp File created C:\Program Files (x86)\FJIsoftFR\FRec329\is-HSE4A.tmp is-4VEQO.tmp File created C:\Program Files (x86)\FJIsoftFR\FRec329\data\is-Q04JV.tmp is-4VEQO.tmp File opened for modification C:\Program Files (x86)\FJIsoftFR\FRec329\FRec329.exe is-4VEQO.tmp File created C:\Program Files (x86)\FJIsoftFR\FRec329\is-71GH1.tmp is-4VEQO.tmp File created C:\Program Files (x86)\FJIsoftFR\FRec329\is-2DS9U.tmp is-4VEQO.tmp File created C:\Program Files (x86)\FJIsoftFR\FRec329\is-C8E0D.tmp is-4VEQO.tmp File opened for modification C:\Program Files (x86)\FJIsoftFR\FRec329\unins000.dat is-4VEQO.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 1400 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
FRec329.exepid process 2996 FRec329.exe 2996 FRec329.exe 2996 FRec329.exe 2996 FRec329.exe 2996 FRec329.exe 2996 FRec329.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 1400 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
file.exeis-4VEQO.tmpFRec329.execmd.exedescription pid process target process PID 5044 wrote to memory of 4904 5044 file.exe is-4VEQO.tmp PID 5044 wrote to memory of 4904 5044 file.exe is-4VEQO.tmp PID 5044 wrote to memory of 4904 5044 file.exe is-4VEQO.tmp PID 4904 wrote to memory of 2996 4904 is-4VEQO.tmp FRec329.exe PID 4904 wrote to memory of 2996 4904 is-4VEQO.tmp FRec329.exe PID 4904 wrote to memory of 2996 4904 is-4VEQO.tmp FRec329.exe PID 2996 wrote to memory of 3132 2996 FRec329.exe bWgcBMqVwT.exe PID 2996 wrote to memory of 3132 2996 FRec329.exe bWgcBMqVwT.exe PID 2996 wrote to memory of 3132 2996 FRec329.exe bWgcBMqVwT.exe PID 2996 wrote to memory of 1644 2996 FRec329.exe cmd.exe PID 2996 wrote to memory of 1644 2996 FRec329.exe cmd.exe PID 2996 wrote to memory of 1644 2996 FRec329.exe cmd.exe PID 1644 wrote to memory of 1400 1644 cmd.exe taskkill.exe PID 1644 wrote to memory of 1400 1644 cmd.exe taskkill.exe PID 1644 wrote to memory of 1400 1644 cmd.exe taskkill.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-788RN.tmp\is-4VEQO.tmp"C:\Users\Admin\AppData\Local\Temp\is-788RN.tmp\is-4VEQO.tmp" /SL4 $501C0 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1788166 527362⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\FJIsoftFR\FRec329\FRec329.exe"C:\Program Files (x86)\FJIsoftFR\FRec329\FRec329.exe"3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\{9e74baef-b191-11ed-b7c8-806e6f6e6963}\bWgcBMqVwT.exe
- Executes dropped EXE
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "FRec329.exe" /f & erase "C:\Program Files (x86)\FJIsoftFR\FRec329\FRec329.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /im "FRec329.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Program Files (x86)\FJIsoftFR\FRec329\FRec329.exeFilesize
1.7MB
MD53ec8e3715b985120f36415ebee5acde7
SHA1e1786a220f263da11592c76077319fe9d9151c56
SHA256913aa1dcbe77f3303516750cf21e3e8cbda4c61261803871539fc67955e94fc5
SHA512748a8625babecf0f4023d2147962ae3bbcbd394da2ec907af320f86a457f4c221c77304a412814de3a826048aec5dda737a01097fc22ca73f190abd993cbdde8
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C:\Program Files (x86)\FJIsoftFR\FRec329\FRec329.exeFilesize
1.7MB
MD53ec8e3715b985120f36415ebee5acde7
SHA1e1786a220f263da11592c76077319fe9d9151c56
SHA256913aa1dcbe77f3303516750cf21e3e8cbda4c61261803871539fc67955e94fc5
SHA512748a8625babecf0f4023d2147962ae3bbcbd394da2ec907af320f86a457f4c221c77304a412814de3a826048aec5dda737a01097fc22ca73f190abd993cbdde8
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C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\9YACFB9R\dll[1].htmFilesize
1B
MD5cfcd208495d565ef66e7dff9f98764da
SHA1b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA2565feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA51231bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
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C:\Users\Admin\AppData\Local\Temp\is-788RN.tmp\is-4VEQO.tmpFilesize
659KB
MD563bdf487b26c0886dbced14bab4d4257
SHA1e3621d870aa54d552861f1c71dea1fb36d71def6
SHA256ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a
SHA512b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40
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C:\Users\Admin\AppData\Local\Temp\is-788RN.tmp\is-4VEQO.tmpFilesize
659KB
MD563bdf487b26c0886dbced14bab4d4257
SHA1e3621d870aa54d552861f1c71dea1fb36d71def6
SHA256ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a
SHA512b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40
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C:\Users\Admin\AppData\Local\Temp\is-V2HPO.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Roaming\{9e74baef-b191-11ed-b7c8-806e6f6e6963}\bWgcBMqVwT.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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C:\Users\Admin\AppData\Roaming\{9e74baef-b191-11ed-b7c8-806e6f6e6963}\bWgcBMqVwT.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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memory/2996-166-0x0000000000400000-0x00000000013B2000-memory.dmpFilesize
15.7MB
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memory/2996-182-0x0000000000400000-0x00000000013B2000-memory.dmpFilesize
15.7MB
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memory/2996-174-0x0000000010000000-0x000000001001B000-memory.dmpFilesize
108KB
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memory/2996-197-0x0000000000400000-0x00000000013B2000-memory.dmpFilesize
15.7MB
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memory/2996-165-0x0000000000400000-0x00000000013B2000-memory.dmpFilesize
15.7MB
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memory/4904-148-0x0000000000650000-0x0000000000651000-memory.dmpFilesize
4KB
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memory/4904-180-0x0000000000400000-0x00000000004B4000-memory.dmpFilesize
720KB
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memory/4904-198-0x0000000000400000-0x00000000004B4000-memory.dmpFilesize
720KB
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memory/5044-179-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/5044-199-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/5044-133-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB