Analysis
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max time kernel
91s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
24-03-2023 22:18
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
cc866995f04447518eac9615d53efb97
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SHA1
1efaed8877346e5b774cfee4aeab404244231a5e
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SHA256
2770629500ae0bd2aec35ca2fbea7ffac2b56d9c981848020559e0fcfebeb341
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SHA512
a9458079f2f46ff9c91739d2dafda3ab1fdc990c25feb709a0fba50583c176473f49fd775c681a239c791b8f089eb5decad12f9e6cb98e6712be1e445f25fba1
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SSDEEP
49152:EGlJfs0mqccSUt9Y669wOpCGwXZ24XB9MB5S3rL5dlLYp:5bccr9o9FcdXZ24XB9MgrlPYp
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:
FRec324.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation FRec324.exe -
Executes dropped EXE 3 IoCs
Processes:
is-7P5CQ.tmpFRec324.exevcLF102.exepid process 3740 is-7P5CQ.tmp 4176 FRec324.exe 5108 vcLF102.exe -
Loads dropped DLL 1 IoCs
Processes:
is-7P5CQ.tmppid process 3740 is-7P5CQ.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-7P5CQ.tmpdescription ioc process File created C:\Program Files (x86)\FJCsoftFR\FRec324\is-30J0G.tmp is-7P5CQ.tmp File created C:\Program Files (x86)\FJCsoftFR\FRec324\is-3CE5T.tmp is-7P5CQ.tmp File opened for modification C:\Program Files (x86)\FJCsoftFR\FRec324\unins000.dat is-7P5CQ.tmp File opened for modification C:\Program Files (x86)\FJCsoftFR\FRec324\FRec324.exe is-7P5CQ.tmp File created C:\Program Files (x86)\FJCsoftFR\FRec324\unins000.dat is-7P5CQ.tmp File created C:\Program Files (x86)\FJCsoftFR\FRec324\is-SHJF0.tmp is-7P5CQ.tmp File created C:\Program Files (x86)\FJCsoftFR\FRec324\is-RTRHM.tmp is-7P5CQ.tmp File created C:\Program Files (x86)\FJCsoftFR\FRec324\is-RH92B.tmp is-7P5CQ.tmp File created C:\Program Files (x86)\FJCsoftFR\FRec324\data\is-HEN91.tmp is-7P5CQ.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 1912 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
FRec324.exepid process 4176 FRec324.exe 4176 FRec324.exe 4176 FRec324.exe 4176 FRec324.exe 4176 FRec324.exe 4176 FRec324.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 1912 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
file.exeis-7P5CQ.tmpFRec324.execmd.exedescription pid process target process PID 3764 wrote to memory of 3740 3764 file.exe is-7P5CQ.tmp PID 3764 wrote to memory of 3740 3764 file.exe is-7P5CQ.tmp PID 3764 wrote to memory of 3740 3764 file.exe is-7P5CQ.tmp PID 3740 wrote to memory of 4176 3740 is-7P5CQ.tmp FRec324.exe PID 3740 wrote to memory of 4176 3740 is-7P5CQ.tmp FRec324.exe PID 3740 wrote to memory of 4176 3740 is-7P5CQ.tmp FRec324.exe PID 4176 wrote to memory of 5108 4176 FRec324.exe vcLF102.exe PID 4176 wrote to memory of 5108 4176 FRec324.exe vcLF102.exe PID 4176 wrote to memory of 5108 4176 FRec324.exe vcLF102.exe PID 4176 wrote to memory of 4492 4176 FRec324.exe cmd.exe PID 4176 wrote to memory of 4492 4176 FRec324.exe cmd.exe PID 4176 wrote to memory of 4492 4176 FRec324.exe cmd.exe PID 4492 wrote to memory of 1912 4492 cmd.exe taskkill.exe PID 4492 wrote to memory of 1912 4492 cmd.exe taskkill.exe PID 4492 wrote to memory of 1912 4492 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-OGC62.tmp\is-7P5CQ.tmp"C:\Users\Admin\AppData\Local\Temp\is-OGC62.tmp\is-7P5CQ.tmp" /SL4 $60060 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1781831 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)\FJCsoftFR\FRec324\FRec324.exe"C:\Program Files (x86)\FJCsoftFR\FRec324\FRec324.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\{a9cfdea2-b1a1-11ed-9f68-806e6f6e6963}\vcLF102.exe
- Executes dropped EXE
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "FRec324.exe" /f & erase "C:\Program Files (x86)\FJCsoftFR\FRec324\FRec324.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /im "FRec324.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)\FJCsoftFR\FRec324\FRec324.exeFilesize
2.2MB
MD533cf4829a28cda22b5d5c9dd6f9ad085
SHA1b637f9d0dc25f703aad4e76c370cc97de0eb5430
SHA256d309ff08c7fa59231a8bef482bd44a2ab710ec7afdd9d57f6512ca24ecb83cd5
SHA5126df709876ab70ab4aef4b560abcdc1caf2d85073fb0c9442f4af14c8399be06cf6e05ee40b24221942a80fee8a850f4ff9caaedece0022ceba39397c279a60f2
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C:\Program Files (x86)\FJCsoftFR\FRec324\FRec324.exeFilesize
2.2MB
MD533cf4829a28cda22b5d5c9dd6f9ad085
SHA1b637f9d0dc25f703aad4e76c370cc97de0eb5430
SHA256d309ff08c7fa59231a8bef482bd44a2ab710ec7afdd9d57f6512ca24ecb83cd5
SHA5126df709876ab70ab4aef4b560abcdc1caf2d85073fb0c9442f4af14c8399be06cf6e05ee40b24221942a80fee8a850f4ff9caaedece0022ceba39397c279a60f2
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C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\S1Q31HZS\dll[1].htmFilesize
1B
MD5cfcd208495d565ef66e7dff9f98764da
SHA1b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA2565feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA51231bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
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C:\Users\Admin\AppData\Local\Temp\is-104O8.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-OGC62.tmp\is-7P5CQ.tmpFilesize
659KB
MD563bdf487b26c0886dbced14bab4d4257
SHA1e3621d870aa54d552861f1c71dea1fb36d71def6
SHA256ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a
SHA512b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40
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C:\Users\Admin\AppData\Local\Temp\is-OGC62.tmp\is-7P5CQ.tmpFilesize
659KB
MD563bdf487b26c0886dbced14bab4d4257
SHA1e3621d870aa54d552861f1c71dea1fb36d71def6
SHA256ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a
SHA512b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40
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C:\Users\Admin\AppData\Roaming\{a9cfdea2-b1a1-11ed-9f68-806e6f6e6963}\vcLF102.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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C:\Users\Admin\AppData\Roaming\{a9cfdea2-b1a1-11ed-9f68-806e6f6e6963}\vcLF102.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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memory/3740-156-0x0000000000570000-0x0000000000571000-memory.dmpFilesize
4KB
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memory/3740-180-0x0000000000400000-0x00000000004B4000-memory.dmpFilesize
720KB
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memory/3740-198-0x0000000000400000-0x00000000004B4000-memory.dmpFilesize
720KB
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memory/3764-179-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/3764-199-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/3764-133-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/4176-166-0x0000000000400000-0x0000000001429000-memory.dmpFilesize
16.2MB
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memory/4176-174-0x0000000010000000-0x000000001001B000-memory.dmpFilesize
108KB
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memory/4176-181-0x0000000000400000-0x0000000001429000-memory.dmpFilesize
16.2MB
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memory/4176-165-0x0000000000400000-0x0000000001429000-memory.dmpFilesize
16.2MB
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memory/4176-197-0x0000000000400000-0x0000000001429000-memory.dmpFilesize
16.2MB