Analysis
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max time kernel
53s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
25-01-2023 10:01
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
General
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Target
file.exe
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Size
1.7MB
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MD5
f3e47d9ef54b7783e66a3267906c4a51
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SHA1
e2352a47e9c80d619f6a8a8f86ed9483708dab58
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SHA256
3934b66fb8cbbaf868f60d3d7fd20d38a8069c454e4128ed802b247f9c0cc22d
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SHA512
e881c730725c71e4c1344aaf9f23ec3b9ef1dccb225d6b2fdf2f3a4555c7e9a56a0881327871bb9c2fff0542945f6ca385abac4efa892206d7d8cb7b2af6e761
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SSDEEP
49152:ZlZbZ4P0MDMpNtEmFmsbk5hn5c9LCgv2MR:NuMphA5cBv2MR
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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Executes dropped EXE 3 IoCs
Processes:
file.tmpfinalrecovery.exeU2IH1vXAGjo.exepid process 1296 file.tmp 3316 finalrecovery.exe 5004 U2IH1vXAGjo.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
finalrecovery.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation finalrecovery.exe -
Loads dropped DLL 1 IoCs
Processes:
file.tmppid process 1296 file.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:
file.tmpdescription ioc process File created C:\Program Files (x86)\FgasoftFR\FinalRecovery\is-33MDK.tmp file.tmp File created C:\Program Files (x86)\FgasoftFR\FinalRecovery\is-G3FSO.tmp file.tmp File opened for modification C:\Program Files (x86)\FgasoftFR\FinalRecovery\finalrecovery.exe file.tmp File created C:\Program Files (x86)\FgasoftFR\FinalRecovery\unins000.dat file.tmp File created C:\Program Files (x86)\FgasoftFR\FinalRecovery\is-VUGV9.tmp file.tmp File created C:\Program Files (x86)\FgasoftFR\FinalRecovery\is-O6Q9B.tmp file.tmp File created C:\Program Files (x86)\FgasoftFR\FinalRecovery\is-MM2NR.tmp file.tmp File created C:\Program Files (x86)\FgasoftFR\FinalRecovery\data\is-ONAJK.tmp file.tmp File opened for modification C:\Program Files (x86)\FgasoftFR\FinalRecovery\unins000.dat file.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 772 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
finalrecovery.exepid process 3316 finalrecovery.exe 3316 finalrecovery.exe 3316 finalrecovery.exe 3316 finalrecovery.exe 3316 finalrecovery.exe 3316 finalrecovery.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 772 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
file.exefile.tmpfinalrecovery.execmd.exedescription pid process target process PID 4752 wrote to memory of 1296 4752 file.exe file.tmp PID 4752 wrote to memory of 1296 4752 file.exe file.tmp PID 4752 wrote to memory of 1296 4752 file.exe file.tmp PID 1296 wrote to memory of 3316 1296 file.tmp finalrecovery.exe PID 1296 wrote to memory of 3316 1296 file.tmp finalrecovery.exe PID 1296 wrote to memory of 3316 1296 file.tmp finalrecovery.exe PID 3316 wrote to memory of 5004 3316 finalrecovery.exe U2IH1vXAGjo.exe PID 3316 wrote to memory of 5004 3316 finalrecovery.exe U2IH1vXAGjo.exe PID 3316 wrote to memory of 5004 3316 finalrecovery.exe U2IH1vXAGjo.exe PID 3316 wrote to memory of 4792 3316 finalrecovery.exe cmd.exe PID 3316 wrote to memory of 4792 3316 finalrecovery.exe cmd.exe PID 3316 wrote to memory of 4792 3316 finalrecovery.exe cmd.exe PID 4792 wrote to memory of 772 4792 cmd.exe taskkill.exe PID 4792 wrote to memory of 772 4792 cmd.exe taskkill.exe PID 4792 wrote to memory of 772 4792 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-RGAIG.tmp\file.tmp"C:\Users\Admin\AppData\Local\Temp\is-RGAIG.tmp\file.tmp" /SL5="$A0046,1531341,54272,C:\Users\Admin\AppData\Local\Temp\file.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\FgasoftFR\FinalRecovery\finalrecovery.exe"C:\Program Files (x86)\FgasoftFR\FinalRecovery\finalrecovery.exe"3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\U2IH1vXAGjo.exe
- Executes dropped EXE
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "finalrecovery.exe" /f & erase "C:\Program Files (x86)\FgasoftFR\FinalRecovery\finalrecovery.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /im "finalrecovery.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Program Files (x86)\FgasoftFR\FinalRecovery\finalrecovery.exeFilesize
1.3MB
MD562c3c49020708fb6322a35fe2e4ab433
SHA191e16efe478ba41980a12a7669740080aba825e3
SHA256dec28f4169939d6dc934d2be6be45490ebfc181829727223aa4ccefabbe4ff7d
SHA5121c7e68208d3a8ae2535c738813efab7cb75dba8ceafd8a48516a4f2abfd623640e4db43985840850aad751c66bc1f5934a0143518f79916fea5dbfced5930b6c
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C:\Program Files (x86)\FgasoftFR\FinalRecovery\finalrecovery.exeFilesize
1.3MB
MD562c3c49020708fb6322a35fe2e4ab433
SHA191e16efe478ba41980a12a7669740080aba825e3
SHA256dec28f4169939d6dc934d2be6be45490ebfc181829727223aa4ccefabbe4ff7d
SHA5121c7e68208d3a8ae2535c738813efab7cb75dba8ceafd8a48516a4f2abfd623640e4db43985840850aad751c66bc1f5934a0143518f79916fea5dbfced5930b6c
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C:\Users\Admin\AppData\Local\Temp\is-IENGA.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-RGAIG.tmp\file.tmpFilesize
696KB
MD5d76329b30db65f61d55b20f36b56da26
SHA15e4c77b723ae8f05b3ae6afeee735a4355f00663
SHA256229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d
SHA512a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d
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C:\Users\Admin\AppData\Local\Temp\is-RGAIG.tmp\file.tmpFilesize
696KB
MD5d76329b30db65f61d55b20f36b56da26
SHA15e4c77b723ae8f05b3ae6afeee735a4355f00663
SHA256229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d
SHA512a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d
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C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\U2IH1vXAGjo.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\U2IH1vXAGjo.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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memory/772-153-0x0000000000000000-mapping.dmp
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memory/1296-135-0x0000000000000000-mapping.dmp
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memory/3316-143-0x0000000000400000-0x0000000001344000-memory.dmpFilesize
15.3MB
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memory/3316-142-0x0000000000400000-0x0000000001344000-memory.dmpFilesize
15.3MB
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memory/3316-139-0x0000000000000000-mapping.dmp
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memory/3316-147-0x0000000010000000-0x000000001001B000-memory.dmpFilesize
108KB
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memory/3316-151-0x0000000000400000-0x0000000001344000-memory.dmpFilesize
15.3MB
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memory/3316-154-0x0000000000400000-0x0000000001344000-memory.dmpFilesize
15.3MB
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memory/4752-132-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/4752-150-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/4752-134-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/4752-155-0x0000000000400000-0x0000000000414000-memory.dmpFilesize
80KB
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memory/4792-152-0x0000000000000000-mapping.dmp
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memory/5004-144-0x0000000000000000-mapping.dmp