Analysis
-
max time kernel
80s -
max time network
129s -
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 15:51
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20230220-en
General
-
Target
file.exe
-
Size
2MB
-
MD5
756f949bee32f19ffa0ad1ba8748721b
-
SHA1
a6f7b78773bfa2423b26f4e93c2bed668ee86a51
-
SHA256
789633ecdfd15766a3bf12ee30d79a5ace11e744add8f0f605018dd06878605b
-
SHA512
273bc673362859d37cff9dadd8f8af80d665ce43c34e1d9b00d25bf042ee4120b8adea7adf9b15ad9323337e55e0765f3235708bc30a67d6b0c13e7ae6767817
-
SSDEEP
49152:EGlJfsM5NEe49PfLOx/kCW2QXtkBdYiwYYTRE9F93MYCs1z5dlLYp:5lEeMa+CxIcdJFv3hHPYp
Malware Config
Extracted
gcleaner
45.12.253.56
45.12.253.72
45.12.253.98
45.12.253.75
Signatures
-
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-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation FRec324.exe -
Executes dropped EXE 3 IoCs
Processes:
is-G21PJ.tmpFRec324.exeG7i90WqYyW.exepid process 3980 is-G21PJ.tmp 456 FRec324.exe 3688 G7i90WqYyW.exe -
Loads dropped DLL 1 IoCs
Processes:
is-G21PJ.tmppid process 3980 is-G21PJ.tmp -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Drops file in Program Files directory 9 IoCs
Processes:
is-G21PJ.tmpdescription ioc process File created C:\Program Files (x86)\FJCsoftFR\FRec324\is-GQNM6.tmp is-G21PJ.tmp File created C:\Program Files (x86)\FJCsoftFR\FRec324\is-HR3A5.tmp is-G21PJ.tmp File created C:\Program Files (x86)\FJCsoftFR\FRec324\data\is-ALT35.tmp is-G21PJ.tmp File opened for modification C:\Program Files (x86)\FJCsoftFR\FRec324\unins000.dat is-G21PJ.tmp File created C:\Program Files (x86)\FJCsoftFR\FRec324\is-HHH9K.tmp is-G21PJ.tmp File created C:\Program Files (x86)\FJCsoftFR\FRec324\is-BGTVR.tmp is-G21PJ.tmp File opened for modification C:\Program Files (x86)\FJCsoftFR\FRec324\FRec324.exe is-G21PJ.tmp File created C:\Program Files (x86)\FJCsoftFR\FRec324\unins000.dat is-G21PJ.tmp File created C:\Program Files (x86)\FJCsoftFR\FRec324\is-P5OEE.tmp is-G21PJ.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 1764 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
FRec324.exepid process 456 FRec324.exe 456 FRec324.exe 456 FRec324.exe 456 FRec324.exe 456 FRec324.exe 456 FRec324.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 1764 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
file.exeis-G21PJ.tmpFRec324.execmd.exedescription pid process target process PID 1392 wrote to memory of 3980 1392 file.exe is-G21PJ.tmp PID 1392 wrote to memory of 3980 1392 file.exe is-G21PJ.tmp PID 1392 wrote to memory of 3980 1392 file.exe is-G21PJ.tmp PID 3980 wrote to memory of 456 3980 is-G21PJ.tmp FRec324.exe PID 3980 wrote to memory of 456 3980 is-G21PJ.tmp FRec324.exe PID 3980 wrote to memory of 456 3980 is-G21PJ.tmp FRec324.exe PID 456 wrote to memory of 3688 456 FRec324.exe G7i90WqYyW.exe PID 456 wrote to memory of 3688 456 FRec324.exe G7i90WqYyW.exe PID 456 wrote to memory of 3688 456 FRec324.exe G7i90WqYyW.exe PID 456 wrote to memory of 4464 456 FRec324.exe cmd.exe PID 456 wrote to memory of 4464 456 FRec324.exe cmd.exe PID 456 wrote to memory of 4464 456 FRec324.exe cmd.exe PID 4464 wrote to memory of 1764 4464 cmd.exe taskkill.exe PID 4464 wrote to memory of 1764 4464 cmd.exe taskkill.exe PID 4464 wrote to memory of 1764 4464 cmd.exe taskkill.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-TC9RM.tmp\is-G21PJ.tmp"C:\Users\Admin\AppData\Local\Temp\is-TC9RM.tmp\is-G21PJ.tmp" /SL4 $11006C "C:\Users\Admin\AppData\Local\Temp\file.exe" 1936644 527362⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
-
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
-
C:\Users\Admin\AppData\Roaming\{88209788-b19c-11ed-8ff5-806e6f6e6963}\G7i90WqYyW.exe
- Executes dropped EXE
-
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
-
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
-
C:\Program Files (x86)\FJCsoftFR\FRec324\FRec324.exeFilesize
2MB
MD54286a36ae29c9e17e7bf62e280b59165
SHA13cee90335aee341cc6bc81018b33cc0f276b6747
SHA2566d97e2f63c61a1c1d460a947c347af03dc80dceb87eda20f926ad385a134eb94
SHA512e40c1676fb6f54d1ef4f20194c43b3cb960f8013d30955d44c5aa2c14e4818074fa372cb1afa1f0c41cf7f06bc63944203f136234a3a71ab5fe4311b83d2acc4
-
C:\Program Files (x86)\FJCsoftFR\FRec324\FRec324.exeFilesize
2MB
MD54286a36ae29c9e17e7bf62e280b59165
SHA13cee90335aee341cc6bc81018b33cc0f276b6747
SHA2566d97e2f63c61a1c1d460a947c347af03dc80dceb87eda20f926ad385a134eb94
SHA512e40c1676fb6f54d1ef4f20194c43b3cb960f8013d30955d44c5aa2c14e4818074fa372cb1afa1f0c41cf7f06bc63944203f136234a3a71ab5fe4311b83d2acc4
-
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\4VT6R2QM\dll[1].htmFilesize
1B
MD5cfcd208495d565ef66e7dff9f98764da
SHA1b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA2565feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA51231bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
-
C:\Users\Admin\AppData\Local\Temp\is-JAIH8.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
-
C:\Users\Admin\AppData\Local\Temp\is-TC9RM.tmp\is-G21PJ.tmpFilesize
659KB
MD563bdf487b26c0886dbced14bab4d4257
SHA1e3621d870aa54d552861f1c71dea1fb36d71def6
SHA256ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a
SHA512b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40
-
C:\Users\Admin\AppData\Local\Temp\is-TC9RM.tmp\is-G21PJ.tmpFilesize
659KB
MD563bdf487b26c0886dbced14bab4d4257
SHA1e3621d870aa54d552861f1c71dea1fb36d71def6
SHA256ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a
SHA512b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40
-
C:\Users\Admin\AppData\Roaming\{88209788-b19c-11ed-8ff5-806e6f6e6963}\G7i90WqYyW.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
-
C:\Users\Admin\AppData\Roaming\{88209788-b19c-11ed-8ff5-806e6f6e6963}\G7i90WqYyW.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
-
memory/456-165-0x0000000000400000-0x000000000145B000-memory.dmpFilesize
16MB
-
memory/456-174-0x0000000010000000-0x000000001001B000-memory.dmpFilesize
108KB
-
memory/456-166-0x0000000000400000-0x000000000145B000-memory.dmpFilesize
16MB
-
memory/456-182-0x0000000000400000-0x000000000145B000-memory.dmpFilesize
16MB
-
memory/456-197-0x0000000000400000-0x000000000145B000-memory.dmpFilesize
16MB
-
memory/1392-199-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
-
memory/1392-179-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
-
memory/1392-133-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
-
memory/3980-148-0x0000000000590000-0x0000000000591000-memory.dmpFilesize
4KB
-
memory/3980-198-0x0000000000400000-0x00000000004B4000-memory.dmpFilesize
720KB
-
memory/3980-180-0x0000000000400000-0x00000000004B4000-memory.dmpFilesize
720KB