Analysis
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max time kernel
86s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
28-03-2023 01:19
Static task
static1
Behavioral task
behavioral1
Sample
95785d5bd7c64e3e8b927d9c7d339608910a81865b97099fa4f15b88bc6de1d5.exe
Resource
win7-20230220-en
General
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Target
95785d5bd7c64e3e8b927d9c7d339608910a81865b97099fa4f15b88bc6de1d5.exe
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Size
2.1MB
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MD5
38b93a93eb49ea994f8c4a7f02134c6c
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SHA1
c09005fce14493aa7add862300de4dec556b7797
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SHA256
95785d5bd7c64e3e8b927d9c7d339608910a81865b97099fa4f15b88bc6de1d5
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SHA512
7c54751239aa10e4c3edadd6bb23afcd65d9a32212c4feae76b9577fb20a4842e8c70d1a10130b88f17b07a19efd0ecda9340d03259c8dcbe96e2b3b1eafa788
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SSDEEP
49152:EGlJfsAwigUZUnu+WQDGLAG+fhPYNgqAnt5v9nKWEc5dlLYp:5nw3UaFGHchQRAnNKWZPYp
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:
FRec326.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation FRec326.exe -
Executes dropped EXE 3 IoCs
Processes:
is-PHP29.tmpFRec326.exeAhfgwSj.exepid process 3704 is-PHP29.tmp 1744 FRec326.exe 216 AhfgwSj.exe -
Loads dropped DLL 1 IoCs
Processes:
is-PHP29.tmppid process 3704 is-PHP29.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-PHP29.tmpdescription ioc process File opened for modification C:\Program Files (x86)\FJFsoftFR\FRec326\FRec326.exe is-PHP29.tmp File created C:\Program Files (x86)\FJFsoftFR\FRec326\unins000.dat is-PHP29.tmp File created C:\Program Files (x86)\FJFsoftFR\FRec326\is-2N1MJ.tmp is-PHP29.tmp File created C:\Program Files (x86)\FJFsoftFR\FRec326\is-K0O24.tmp is-PHP29.tmp File created C:\Program Files (x86)\FJFsoftFR\FRec326\is-H1HDV.tmp is-PHP29.tmp File created C:\Program Files (x86)\FJFsoftFR\FRec326\is-K2BD4.tmp is-PHP29.tmp File created C:\Program Files (x86)\FJFsoftFR\FRec326\is-Q0I92.tmp is-PHP29.tmp File created C:\Program Files (x86)\FJFsoftFR\FRec326\data\is-3Q1HO.tmp is-PHP29.tmp File opened for modification C:\Program Files (x86)\FJFsoftFR\FRec326\unins000.dat is-PHP29.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 1648 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
FRec326.exepid process 1744 FRec326.exe 1744 FRec326.exe 1744 FRec326.exe 1744 FRec326.exe 1744 FRec326.exe 1744 FRec326.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 1648 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
95785d5bd7c64e3e8b927d9c7d339608910a81865b97099fa4f15b88bc6de1d5.exeis-PHP29.tmpFRec326.execmd.exedescription pid process target process PID 2680 wrote to memory of 3704 2680 95785d5bd7c64e3e8b927d9c7d339608910a81865b97099fa4f15b88bc6de1d5.exe is-PHP29.tmp PID 2680 wrote to memory of 3704 2680 95785d5bd7c64e3e8b927d9c7d339608910a81865b97099fa4f15b88bc6de1d5.exe is-PHP29.tmp PID 2680 wrote to memory of 3704 2680 95785d5bd7c64e3e8b927d9c7d339608910a81865b97099fa4f15b88bc6de1d5.exe is-PHP29.tmp PID 3704 wrote to memory of 1744 3704 is-PHP29.tmp FRec326.exe PID 3704 wrote to memory of 1744 3704 is-PHP29.tmp FRec326.exe PID 3704 wrote to memory of 1744 3704 is-PHP29.tmp FRec326.exe PID 1744 wrote to memory of 216 1744 FRec326.exe AhfgwSj.exe PID 1744 wrote to memory of 216 1744 FRec326.exe AhfgwSj.exe PID 1744 wrote to memory of 216 1744 FRec326.exe AhfgwSj.exe PID 1744 wrote to memory of 2352 1744 FRec326.exe cmd.exe PID 1744 wrote to memory of 2352 1744 FRec326.exe cmd.exe PID 1744 wrote to memory of 2352 1744 FRec326.exe cmd.exe PID 2352 wrote to memory of 1648 2352 cmd.exe taskkill.exe PID 2352 wrote to memory of 1648 2352 cmd.exe taskkill.exe PID 2352 wrote to memory of 1648 2352 cmd.exe taskkill.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\95785d5bd7c64e3e8b927d9c7d339608910a81865b97099fa4f15b88bc6de1d5.exe"C:\Users\Admin\AppData\Local\Temp\95785d5bd7c64e3e8b927d9c7d339608910a81865b97099fa4f15b88bc6de1d5.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-0DHMF.tmp\is-PHP29.tmp"C:\Users\Admin\AppData\Local\Temp\is-0DHMF.tmp\is-PHP29.tmp" /SL4 $9004A "C:\Users\Admin\AppData\Local\Temp\95785d5bd7c64e3e8b927d9c7d339608910a81865b97099fa4f15b88bc6de1d5.exe" 1928719 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)\FJFsoftFR\FRec326\FRec326.exe"C:\Program Files (x86)\FJFsoftFR\FRec326\FRec326.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}\AhfgwSj.exe
- Executes dropped EXE
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "FRec326.exe" /f & erase "C:\Program Files (x86)\FJFsoftFR\FRec326\FRec326.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /im "FRec326.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)\FJFsoftFR\FRec326\FRec326.exeFilesize
2.3MB
MD5ebe2fd58af479e57c1c052adff91430c
SHA1869b656bcbca0367b46f575731c65250174eefc5
SHA25622aab96cff2623ab9ae319790a5fdd1ea2357bc15ae36104f83ac1fdf6b3447c
SHA51261e1210b16f80f1cef35f1f23e0a97caeccc2a8bbaaf6ba4543d2e03556cc7ae0e6cb94f623c2d38fd66c6ec203086a8c91bbe26c2f790f496867254c7bd626c
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C:\Program Files (x86)\FJFsoftFR\FRec326\FRec326.exeFilesize
2.3MB
MD5ebe2fd58af479e57c1c052adff91430c
SHA1869b656bcbca0367b46f575731c65250174eefc5
SHA25622aab96cff2623ab9ae319790a5fdd1ea2357bc15ae36104f83ac1fdf6b3447c
SHA51261e1210b16f80f1cef35f1f23e0a97caeccc2a8bbaaf6ba4543d2e03556cc7ae0e6cb94f623c2d38fd66c6ec203086a8c91bbe26c2f790f496867254c7bd626c
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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-0DHMF.tmp\is-PHP29.tmpFilesize
659KB
MD563bdf487b26c0886dbced14bab4d4257
SHA1e3621d870aa54d552861f1c71dea1fb36d71def6
SHA256ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a
SHA512b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40
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C:\Users\Admin\AppData\Local\Temp\is-0DHMF.tmp\is-PHP29.tmpFilesize
659KB
MD563bdf487b26c0886dbced14bab4d4257
SHA1e3621d870aa54d552861f1c71dea1fb36d71def6
SHA256ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a
SHA512b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40
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C:\Users\Admin\AppData\Local\Temp\is-5MANS.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Roaming\{88209788-b19c-11ed-8ff5-806e6f6e6963}\AhfgwSj.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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C:\Users\Admin\AppData\Roaming\{88209788-b19c-11ed-8ff5-806e6f6e6963}\AhfgwSj.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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memory/1744-166-0x0000000000400000-0x0000000001456000-memory.dmpFilesize
16.3MB
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memory/1744-174-0x0000000010000000-0x000000001001B000-memory.dmpFilesize
108KB
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memory/1744-165-0x0000000000400000-0x0000000001456000-memory.dmpFilesize
16.3MB
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memory/1744-181-0x0000000000400000-0x0000000001456000-memory.dmpFilesize
16.3MB
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memory/1744-197-0x0000000000400000-0x0000000001456000-memory.dmpFilesize
16.3MB
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memory/2680-199-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/2680-178-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/2680-133-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/3704-148-0x0000000000690000-0x0000000000691000-memory.dmpFilesize
4KB
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memory/3704-198-0x0000000000400000-0x00000000004B4000-memory.dmpFilesize
720KB
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memory/3704-180-0x0000000000400000-0x00000000004B4000-memory.dmpFilesize
720KB