Analysis
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max time kernel
77s -
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
25-03-2023 08:59
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
81ea77f0de56625b59aa4ff8e3e3a2e4
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SHA1
c899a6f213c01d6dd3c11e7f083a057d2014c6ba
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SHA256
8b6a14bde2459c703d7dc310237e77b5f873cae50f3f11c03e1272d332ab3f68
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SHA512
710339b903c6375fa2417a75bc919e0633c1ea5d04a66a3c216ec40e3879ae1ff0e66c25847ea977af3667bfc4fd6ca34ded4b1a1b5b6dbd53273d64b2612eaf
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SSDEEP
49152:EGlJfs/El+62dmS6LJXxWe2Ev7EWw68M3Bt97yYHUIzBjT5dlLYp:5MElhAmRNBWYvQn68oL0I/PYp
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:
FRec325.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation FRec325.exe -
Executes dropped EXE 3 IoCs
Processes:
is-38GP4.tmpFRec325.exeKv23qaYd0c.exepid process 628 is-38GP4.tmp 100 FRec325.exe 1820 Kv23qaYd0c.exe -
Loads dropped DLL 1 IoCs
Processes:
is-38GP4.tmppid process 628 is-38GP4.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-38GP4.tmpdescription ioc process File created C:\Program Files (x86)\FJDsoftFR\FRec325\is-DBVEG.tmp is-38GP4.tmp File created C:\Program Files (x86)\FJDsoftFR\FRec325\is-G5II0.tmp is-38GP4.tmp File created C:\Program Files (x86)\FJDsoftFR\FRec325\is-M18A5.tmp is-38GP4.tmp File created C:\Program Files (x86)\FJDsoftFR\FRec325\is-G87N7.tmp is-38GP4.tmp File created C:\Program Files (x86)\FJDsoftFR\FRec325\is-BKDL7.tmp is-38GP4.tmp File created C:\Program Files (x86)\FJDsoftFR\FRec325\data\is-8PFC6.tmp is-38GP4.tmp File opened for modification C:\Program Files (x86)\FJDsoftFR\FRec325\unins000.dat is-38GP4.tmp File opened for modification C:\Program Files (x86)\FJDsoftFR\FRec325\FRec325.exe is-38GP4.tmp File created C:\Program Files (x86)\FJDsoftFR\FRec325\unins000.dat is-38GP4.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 1448 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
FRec325.exepid process 100 FRec325.exe 100 FRec325.exe 100 FRec325.exe 100 FRec325.exe 100 FRec325.exe 100 FRec325.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 1448 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
file.exeis-38GP4.tmpFRec325.execmd.exedescription pid process target process PID 3740 wrote to memory of 628 3740 file.exe is-38GP4.tmp PID 3740 wrote to memory of 628 3740 file.exe is-38GP4.tmp PID 3740 wrote to memory of 628 3740 file.exe is-38GP4.tmp PID 628 wrote to memory of 100 628 is-38GP4.tmp FRec325.exe PID 628 wrote to memory of 100 628 is-38GP4.tmp FRec325.exe PID 628 wrote to memory of 100 628 is-38GP4.tmp FRec325.exe PID 100 wrote to memory of 1820 100 FRec325.exe Kv23qaYd0c.exe PID 100 wrote to memory of 1820 100 FRec325.exe Kv23qaYd0c.exe PID 100 wrote to memory of 1820 100 FRec325.exe Kv23qaYd0c.exe PID 100 wrote to memory of 2308 100 FRec325.exe cmd.exe PID 100 wrote to memory of 2308 100 FRec325.exe cmd.exe PID 100 wrote to memory of 2308 100 FRec325.exe cmd.exe PID 2308 wrote to memory of 1448 2308 cmd.exe taskkill.exe PID 2308 wrote to memory of 1448 2308 cmd.exe taskkill.exe PID 2308 wrote to memory of 1448 2308 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-P4JRJ.tmp\is-38GP4.tmp"C:\Users\Admin\AppData\Local\Temp\is-P4JRJ.tmp\is-38GP4.tmp" /SL4 $9011C "C:\Users\Admin\AppData\Local\Temp\file.exe" 1922203 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)\FJDsoftFR\FRec325\FRec325.exe"C:\Program Files (x86)\FJDsoftFR\FRec325\FRec325.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\{88209788-b19c-11ed-8ff5-806e6f6e6963}\Kv23qaYd0c.exe
- Executes dropped EXE
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "FRec325.exe" /f & erase "C:\Program Files (x86)\FJDsoftFR\FRec325\FRec325.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /im "FRec325.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)\FJDsoftFR\FRec325\FRec325.exeFilesize
2.3MB
MD51d350f00dc2ae1cd73a2bc153a922704
SHA1b307765238ab2c833d22c3a10bec0101d326d384
SHA256129bc3fca0088f4c0f9cd7f14e68a07ed527a77a993422dc0e01a2797bb610a2
SHA512f7f8f0c6fd0f15070dfe384166602f7c53a6d994cb30857366b9adc76854ecdbaf58a315bbfb3d6d60728e0f2d9000728e73e6479e3095c9160f98aad9727e7f
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C:\Program Files (x86)\FJDsoftFR\FRec325\FRec325.exeFilesize
2.3MB
MD51d350f00dc2ae1cd73a2bc153a922704
SHA1b307765238ab2c833d22c3a10bec0101d326d384
SHA256129bc3fca0088f4c0f9cd7f14e68a07ed527a77a993422dc0e01a2797bb610a2
SHA512f7f8f0c6fd0f15070dfe384166602f7c53a6d994cb30857366b9adc76854ecdbaf58a315bbfb3d6d60728e0f2d9000728e73e6479e3095c9160f98aad9727e7f
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C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\4VT6R2QM\dll[1].htmFilesize
1B
MD5cfcd208495d565ef66e7dff9f98764da
SHA1b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA2565feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA51231bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
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C:\Users\Admin\AppData\Local\Temp\is-IICI0.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-P4JRJ.tmp\is-38GP4.tmpFilesize
659KB
MD563bdf487b26c0886dbced14bab4d4257
SHA1e3621d870aa54d552861f1c71dea1fb36d71def6
SHA256ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a
SHA512b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40
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C:\Users\Admin\AppData\Local\Temp\is-P4JRJ.tmp\is-38GP4.tmpFilesize
659KB
MD563bdf487b26c0886dbced14bab4d4257
SHA1e3621d870aa54d552861f1c71dea1fb36d71def6
SHA256ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a
SHA512b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40
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C:\Users\Admin\AppData\Roaming\{88209788-b19c-11ed-8ff5-806e6f6e6963}\Kv23qaYd0c.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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C:\Users\Admin\AppData\Roaming\{88209788-b19c-11ed-8ff5-806e6f6e6963}\Kv23qaYd0c.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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memory/100-166-0x0000000000400000-0x0000000001454000-memory.dmpFilesize
16.3MB
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memory/100-182-0x0000000000400000-0x0000000001454000-memory.dmpFilesize
16.3MB
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memory/100-174-0x0000000010000000-0x000000001001B000-memory.dmpFilesize
108KB
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memory/100-197-0x0000000000400000-0x0000000001454000-memory.dmpFilesize
16.3MB
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memory/100-165-0x0000000000400000-0x0000000001454000-memory.dmpFilesize
16.3MB
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memory/628-162-0x00000000021F0000-0x00000000021F1000-memory.dmpFilesize
4KB
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memory/628-180-0x0000000000400000-0x00000000004B4000-memory.dmpFilesize
720KB
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memory/628-198-0x0000000000400000-0x00000000004B4000-memory.dmpFilesize
720KB
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memory/3740-179-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/3740-199-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/3740-133-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB