Analysis
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max time kernel
87s -
max time network
90s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
20-03-2023 23:58
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
2.2MB
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MD5
404d033972d34c28f3b04e65d3673342
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SHA1
0ab996aae9c3046d789f841f803c4beeb616e463
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SHA256
83660b75c4e4dc6041398055ea66a6815b0b8144551aa4d45fda83c05dba9277
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SHA512
62be0c133a33e493ca43812f33d5b9e7a0eb99c5338aef3a3dcab70e9c34151242c6c6984c708b7b4a76745de9d5ebaf45102116b8800a6dd760b9fccfcdf4cd
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SSDEEP
49152:EGlJfs6KVfxph3y9qZEwMD9nsaXiLWrF4pi8IOCTbfGQsSVEmmy5dlLYp:5Offhi9yAVsAiaeUl3yiV3mAPYp
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:
FRec320.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation FRec320.exe -
Executes dropped EXE 3 IoCs
Processes:
is-KQQUS.tmpFRec320.exea5hUL.exepid process 4288 is-KQQUS.tmp 1820 FRec320.exe 1520 a5hUL.exe -
Loads dropped DLL 1 IoCs
Processes:
is-KQQUS.tmppid process 4288 is-KQQUS.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-KQQUS.tmpdescription ioc process File created C:\Program Files (x86)\FIYsoftFR\FRec320\is-G28IJ.tmp is-KQQUS.tmp File created C:\Program Files (x86)\FIYsoftFR\FRec320\is-NM8HD.tmp is-KQQUS.tmp File created C:\Program Files (x86)\FIYsoftFR\FRec320\is-SIHQL.tmp is-KQQUS.tmp File opened for modification C:\Program Files (x86)\FIYsoftFR\FRec320\unins000.dat is-KQQUS.tmp File opened for modification C:\Program Files (x86)\FIYsoftFR\FRec320\FRec320.exe is-KQQUS.tmp File created C:\Program Files (x86)\FIYsoftFR\FRec320\unins000.dat is-KQQUS.tmp File created C:\Program Files (x86)\FIYsoftFR\FRec320\is-UH7FB.tmp is-KQQUS.tmp File created C:\Program Files (x86)\FIYsoftFR\FRec320\is-6CMMT.tmp is-KQQUS.tmp File created C:\Program Files (x86)\FIYsoftFR\FRec320\data\is-BC6ML.tmp is-KQQUS.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 2408 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
FRec320.exepid process 1820 FRec320.exe 1820 FRec320.exe 1820 FRec320.exe 1820 FRec320.exe 1820 FRec320.exe 1820 FRec320.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 2408 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
file.exeis-KQQUS.tmpFRec320.execmd.exedescription pid process target process PID 4404 wrote to memory of 4288 4404 file.exe is-KQQUS.tmp PID 4404 wrote to memory of 4288 4404 file.exe is-KQQUS.tmp PID 4404 wrote to memory of 4288 4404 file.exe is-KQQUS.tmp PID 4288 wrote to memory of 1820 4288 is-KQQUS.tmp FRec320.exe PID 4288 wrote to memory of 1820 4288 is-KQQUS.tmp FRec320.exe PID 4288 wrote to memory of 1820 4288 is-KQQUS.tmp FRec320.exe PID 1820 wrote to memory of 1520 1820 FRec320.exe a5hUL.exe PID 1820 wrote to memory of 1520 1820 FRec320.exe a5hUL.exe PID 1820 wrote to memory of 1520 1820 FRec320.exe a5hUL.exe PID 1820 wrote to memory of 1424 1820 FRec320.exe cmd.exe PID 1820 wrote to memory of 1424 1820 FRec320.exe cmd.exe PID 1820 wrote to memory of 1424 1820 FRec320.exe cmd.exe PID 1424 wrote to memory of 2408 1424 cmd.exe taskkill.exe PID 1424 wrote to memory of 2408 1424 cmd.exe taskkill.exe PID 1424 wrote to memory of 2408 1424 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-7O0Q3.tmp\is-KQQUS.tmp"C:\Users\Admin\AppData\Local\Temp\is-7O0Q3.tmp\is-KQQUS.tmp" /SL4 $C0030 "C:\Users\Admin\AppData\Local\Temp\file.exe" 2114558 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)\FIYsoftFR\FRec320\FRec320.exe"C:\Program Files (x86)\FIYsoftFR\FRec320\FRec320.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}\a5hUL.exe
- Executes dropped EXE
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "FRec320.exe" /f & erase "C:\Program Files (x86)\FIYsoftFR\FRec320\FRec320.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /im "FRec320.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)\FIYsoftFR\FRec320\FRec320.exeFilesize
2.6MB
MD5930f1f9cf042dc726f3ffd0c904995cf
SHA1d78d96d1fb3ede0f38f4fa40e7678283868ad96d
SHA2561aede4eeda91a83fb32f2d60c58ad6af72c624f046e4188f1be8a08d55e7dd63
SHA512aafb1e59f957e403f4b96d9c4188661aad83c01f124b7b7baf78fe435a8a3d1e5a069f837a2a2fde55851d42680884b36c7d2fb241260f651de57681c671f014
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C:\Program Files (x86)\FIYsoftFR\FRec320\FRec320.exeFilesize
2.6MB
MD5930f1f9cf042dc726f3ffd0c904995cf
SHA1d78d96d1fb3ede0f38f4fa40e7678283868ad96d
SHA2561aede4eeda91a83fb32f2d60c58ad6af72c624f046e4188f1be8a08d55e7dd63
SHA512aafb1e59f957e403f4b96d9c4188661aad83c01f124b7b7baf78fe435a8a3d1e5a069f837a2a2fde55851d42680884b36c7d2fb241260f651de57681c671f014
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C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\G1ORIWBN\dll[1].htmFilesize
1B
MD5cfcd208495d565ef66e7dff9f98764da
SHA1b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA2565feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA51231bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
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C:\Users\Admin\AppData\Local\Temp\is-7O0Q3.tmp\is-KQQUS.tmpFilesize
659KB
MD563bdf487b26c0886dbced14bab4d4257
SHA1e3621d870aa54d552861f1c71dea1fb36d71def6
SHA256ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a
SHA512b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40
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C:\Users\Admin\AppData\Local\Temp\is-7O0Q3.tmp\is-KQQUS.tmpFilesize
659KB
MD563bdf487b26c0886dbced14bab4d4257
SHA1e3621d870aa54d552861f1c71dea1fb36d71def6
SHA256ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a
SHA512b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40
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C:\Users\Admin\AppData\Local\Temp\is-G7PC9.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Roaming\{9e74baef-b191-11ed-b7c8-806e6f6e6963}\a5hUL.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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C:\Users\Admin\AppData\Roaming\{9e74baef-b191-11ed-b7c8-806e6f6e6963}\a5hUL.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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memory/1820-166-0x0000000000400000-0x00000000014A1000-memory.dmpFilesize
16.6MB
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memory/1820-174-0x0000000010000000-0x000000001001B000-memory.dmpFilesize
108KB
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memory/1820-182-0x0000000000400000-0x00000000014A1000-memory.dmpFilesize
16.6MB
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memory/1820-165-0x0000000000400000-0x00000000014A1000-memory.dmpFilesize
16.6MB
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memory/1820-197-0x0000000000400000-0x00000000014A1000-memory.dmpFilesize
16.6MB
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memory/4288-180-0x0000000000400000-0x00000000004B4000-memory.dmpFilesize
720KB
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memory/4288-198-0x0000000000400000-0x00000000004B4000-memory.dmpFilesize
720KB
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memory/4288-164-0x0000000000650000-0x0000000000651000-memory.dmpFilesize
4KB
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memory/4404-133-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/4404-179-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/4404-199-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB