Analysis
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max time kernel
147s -
max time network
131s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
23-03-2023 01:37
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
2.1MB
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MD5
c33390795c21a5074432d7b94205946d
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SHA1
07e45eb6b1ce624b48ca11f3a9dac4a7b9c98f74
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SHA256
5621cd4a0de05cddb766e3cfb98392bf50f6ee2e9f9befc62e9961788e193c22
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SHA512
4a112a5b9955d91ec4d64c02fe2d4f5ba3951db6971d960de47a03e7860dd410a8ea8d7295601e62def747b3c9f4210daadce85746d2d7a2cd004ecccc5a5009
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SSDEEP
49152:EGlJfsg0r9MIYviL2AKwX3Xb0c0hDfcCdicsGcxhSnTj6fgkBVEOM5dlLYp:5ArS9uKwwc5msGySHkBSOmPYp
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:
FRec322.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation FRec322.exe -
Executes dropped EXE 3 IoCs
Processes:
is-NPB5N.tmpFRec322.exek41kwcA07sZckA.exepid process 1780 is-NPB5N.tmp 860 FRec322.exe 3976 k41kwcA07sZckA.exe -
Loads dropped DLL 1 IoCs
Processes:
is-NPB5N.tmppid process 1780 is-NPB5N.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-NPB5N.tmpdescription ioc process File created C:\Program Files (x86)\FJAsoftFR\FRec322\is-8AIO6.tmp is-NPB5N.tmp File created C:\Program Files (x86)\FJAsoftFR\FRec322\is-BAT2M.tmp is-NPB5N.tmp File opened for modification C:\Program Files (x86)\FJAsoftFR\FRec322\unins000.dat is-NPB5N.tmp File created C:\Program Files (x86)\FJAsoftFR\FRec322\unins000.dat is-NPB5N.tmp File created C:\Program Files (x86)\FJAsoftFR\FRec322\is-H6KBJ.tmp is-NPB5N.tmp File created C:\Program Files (x86)\FJAsoftFR\FRec322\data\is-8BKEL.tmp is-NPB5N.tmp File opened for modification C:\Program Files (x86)\FJAsoftFR\FRec322\FRec322.exe is-NPB5N.tmp File created C:\Program Files (x86)\FJAsoftFR\FRec322\is-LAAOC.tmp is-NPB5N.tmp File created C:\Program Files (x86)\FJAsoftFR\FRec322\is-AEAVI.tmp is-NPB5N.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 3556 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
FRec322.exepid process 860 FRec322.exe 860 FRec322.exe 860 FRec322.exe 860 FRec322.exe 860 FRec322.exe 860 FRec322.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 3556 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
file.exeis-NPB5N.tmpFRec322.execmd.exedescription pid process target process PID 4676 wrote to memory of 1780 4676 file.exe is-NPB5N.tmp PID 4676 wrote to memory of 1780 4676 file.exe is-NPB5N.tmp PID 4676 wrote to memory of 1780 4676 file.exe is-NPB5N.tmp PID 1780 wrote to memory of 860 1780 is-NPB5N.tmp FRec322.exe PID 1780 wrote to memory of 860 1780 is-NPB5N.tmp FRec322.exe PID 1780 wrote to memory of 860 1780 is-NPB5N.tmp FRec322.exe PID 860 wrote to memory of 3976 860 FRec322.exe k41kwcA07sZckA.exe PID 860 wrote to memory of 3976 860 FRec322.exe k41kwcA07sZckA.exe PID 860 wrote to memory of 3976 860 FRec322.exe k41kwcA07sZckA.exe PID 860 wrote to memory of 1008 860 FRec322.exe cmd.exe PID 860 wrote to memory of 1008 860 FRec322.exe cmd.exe PID 860 wrote to memory of 1008 860 FRec322.exe cmd.exe PID 1008 wrote to memory of 3556 1008 cmd.exe taskkill.exe PID 1008 wrote to memory of 3556 1008 cmd.exe taskkill.exe PID 1008 wrote to memory of 3556 1008 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-J8KHA.tmp\is-NPB5N.tmp"C:\Users\Admin\AppData\Local\Temp\is-J8KHA.tmp\is-NPB5N.tmp" /SL4 $90050 "C:\Users\Admin\AppData\Local\Temp\file.exe" 2004247 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)\FJAsoftFR\FRec322\FRec322.exe"C:\Program Files (x86)\FJAsoftFR\FRec322\FRec322.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}\k41kwcA07sZckA.exe
- Executes dropped EXE
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "FRec322.exe" /f & erase "C:\Program Files (x86)\FJAsoftFR\FRec322\FRec322.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /im "FRec322.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)\FJAsoftFR\FRec322\FRec322.exeFilesize
2.6MB
MD52c1ed3acc118408dc40e167aebd17e85
SHA1eb49d0fdd37a6870c35e8cbdd11f52406549b9a2
SHA2567d93af643479483b4def4470541fbabb4769ddaa55beb613bb8950a793b856e4
SHA512475069dc25d1e8968523c504c1203fe9b27c2cb033a3b9e622e85361e875fbdfb3464098fb3bfa1b98a3364ebb56e978c4c39c9c6e92377fb1e2c038521e628d
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C:\Program Files (x86)\FJAsoftFR\FRec322\FRec322.exeFilesize
2.6MB
MD52c1ed3acc118408dc40e167aebd17e85
SHA1eb49d0fdd37a6870c35e8cbdd11f52406549b9a2
SHA2567d93af643479483b4def4470541fbabb4769ddaa55beb613bb8950a793b856e4
SHA512475069dc25d1e8968523c504c1203fe9b27c2cb033a3b9e622e85361e875fbdfb3464098fb3bfa1b98a3364ebb56e978c4c39c9c6e92377fb1e2c038521e628d
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C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\YYL8D8JJ\dll[1].htmFilesize
1B
MD5cfcd208495d565ef66e7dff9f98764da
SHA1b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA2565feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA51231bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
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C:\Users\Admin\AppData\Local\Temp\is-J8KHA.tmp\is-NPB5N.tmpFilesize
659KB
MD563bdf487b26c0886dbced14bab4d4257
SHA1e3621d870aa54d552861f1c71dea1fb36d71def6
SHA256ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a
SHA512b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40
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C:\Users\Admin\AppData\Local\Temp\is-J8KHA.tmp\is-NPB5N.tmpFilesize
659KB
MD563bdf487b26c0886dbced14bab4d4257
SHA1e3621d870aa54d552861f1c71dea1fb36d71def6
SHA256ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a
SHA512b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40
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C:\Users\Admin\AppData\Local\Temp\is-NVJ2N.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Roaming\{a9cfdea2-b1a1-11ed-9f68-806e6f6e6963}\k41kwcA07sZckA.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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C:\Users\Admin\AppData\Roaming\{a9cfdea2-b1a1-11ed-9f68-806e6f6e6963}\k41kwcA07sZckA.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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memory/860-166-0x0000000000400000-0x00000000014A0000-memory.dmpFilesize
16.6MB
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memory/860-181-0x0000000000400000-0x00000000014A0000-memory.dmpFilesize
16.6MB
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memory/860-174-0x0000000010000000-0x000000001001B000-memory.dmpFilesize
108KB
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memory/860-197-0x0000000000400000-0x00000000014A0000-memory.dmpFilesize
16.6MB
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memory/860-165-0x0000000000400000-0x00000000014A0000-memory.dmpFilesize
16.6MB
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memory/1780-150-0x0000000000640000-0x0000000000641000-memory.dmpFilesize
4KB
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memory/1780-180-0x0000000000400000-0x00000000004B4000-memory.dmpFilesize
720KB
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memory/1780-198-0x0000000000400000-0x00000000004B4000-memory.dmpFilesize
720KB
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memory/4676-179-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/4676-199-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/4676-133-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB