Analysis
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max time kernel
113s -
max time network
142s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
15-03-2023 15:12
Static task
static1
Behavioral task
behavioral1
Sample
8e91d406fc994c8cf7108a4ad5dd19e00f83de4f246db545b33fad12b97bb226.exe
Resource
win7-20230220-en
General
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Target
8e91d406fc994c8cf7108a4ad5dd19e00f83de4f246db545b33fad12b97bb226.exe
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Size
2.9MB
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MD5
bd226502ad3d2a9e97b5d934a00e7662
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SHA1
6c5a2da673c20d74ea9d5dcaed80d329d7034ef8
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SHA256
8e91d406fc994c8cf7108a4ad5dd19e00f83de4f246db545b33fad12b97bb226
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SHA512
60ecd67b136cbfe7ce8b9f426b36b1967b2ef98455453732ec6bfe909e4a968f771e05d7a69ea269c52db815012b1cea420cb75651b9caec6e77320ead213158
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SSDEEP
49152:AGSs0AvEzxCKQ70aHQGiqjKkuhtJZQXkyj+a93loBoteYW1VaNiHqEzlVOKz:dSs0AvCxBQ7nQ3KgtJZAB3loe0YW1VKO
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:
FRec314.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\International\Geo\Nation FRec314.exe -
Executes dropped EXE 3 IoCs
Processes:
is-32CA1.tmpFRec314.exeJes5hoyx.exepid process 564 is-32CA1.tmp 212 FRec314.exe 4288 Jes5hoyx.exe -
Loads dropped DLL 3 IoCs
Processes:
is-32CA1.tmppid process 564 is-32CA1.tmp 564 is-32CA1.tmp 564 is-32CA1.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-32CA1.tmpdescription ioc process File created C:\Program Files (x86)\FIVsoftFR\FRec314\unins000.dat is-32CA1.tmp File created C:\Program Files (x86)\FIVsoftFR\FRec314\is-SBMKJ.tmp is-32CA1.tmp File created C:\Program Files (x86)\FIVsoftFR\FRec314\is-CNRGT.tmp is-32CA1.tmp File opened for modification C:\Program Files (x86)\FIVsoftFR\FRec314\FRec314.exe is-32CA1.tmp File created C:\Program Files (x86)\FIVsoftFR\FRec314\is-L5316.tmp is-32CA1.tmp File created C:\Program Files (x86)\FIVsoftFR\FRec314\is-6OU7C.tmp is-32CA1.tmp File created C:\Program Files (x86)\FIVsoftFR\FRec314\is-UDATU.tmp is-32CA1.tmp File created C:\Program Files (x86)\FIVsoftFR\FRec314\data\is-S4E4T.tmp is-32CA1.tmp File opened for modification C:\Program Files (x86)\FIVsoftFR\FRec314\unins000.dat is-32CA1.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 4696 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
FRec314.exepid process 212 FRec314.exe 212 FRec314.exe 212 FRec314.exe 212 FRec314.exe 212 FRec314.exe 212 FRec314.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 4696 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
8e91d406fc994c8cf7108a4ad5dd19e00f83de4f246db545b33fad12b97bb226.exeis-32CA1.tmpFRec314.execmd.exedescription pid process target process PID 2308 wrote to memory of 564 2308 8e91d406fc994c8cf7108a4ad5dd19e00f83de4f246db545b33fad12b97bb226.exe is-32CA1.tmp PID 2308 wrote to memory of 564 2308 8e91d406fc994c8cf7108a4ad5dd19e00f83de4f246db545b33fad12b97bb226.exe is-32CA1.tmp PID 2308 wrote to memory of 564 2308 8e91d406fc994c8cf7108a4ad5dd19e00f83de4f246db545b33fad12b97bb226.exe is-32CA1.tmp PID 564 wrote to memory of 212 564 is-32CA1.tmp FRec314.exe PID 564 wrote to memory of 212 564 is-32CA1.tmp FRec314.exe PID 564 wrote to memory of 212 564 is-32CA1.tmp FRec314.exe PID 212 wrote to memory of 4288 212 FRec314.exe Jes5hoyx.exe PID 212 wrote to memory of 4288 212 FRec314.exe Jes5hoyx.exe PID 212 wrote to memory of 4288 212 FRec314.exe Jes5hoyx.exe PID 212 wrote to memory of 4736 212 FRec314.exe cmd.exe PID 212 wrote to memory of 4736 212 FRec314.exe cmd.exe PID 212 wrote to memory of 4736 212 FRec314.exe cmd.exe PID 4736 wrote to memory of 4696 4736 cmd.exe taskkill.exe PID 4736 wrote to memory of 4696 4736 cmd.exe taskkill.exe PID 4736 wrote to memory of 4696 4736 cmd.exe taskkill.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\8e91d406fc994c8cf7108a4ad5dd19e00f83de4f246db545b33fad12b97bb226.exe"C:\Users\Admin\AppData\Local\Temp\8e91d406fc994c8cf7108a4ad5dd19e00f83de4f246db545b33fad12b97bb226.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-JANV7.tmp\is-32CA1.tmp"C:\Users\Admin\AppData\Local\Temp\is-JANV7.tmp\is-32CA1.tmp" /SL4 $601DA "C:\Users\Admin\AppData\Local\Temp\8e91d406fc994c8cf7108a4ad5dd19e00f83de4f246db545b33fad12b97bb226.exe" 2777825 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)\FIVsoftFR\FRec314\FRec314.exe"C:\Program Files (x86)\FIVsoftFR\FRec314\FRec314.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\{7f74da3b-b191-11ed-abe8-806e6f6e6963}\Jes5hoyx.exe
- Executes dropped EXE
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "FRec314.exe" /f & erase "C:\Program Files (x86)\FIVsoftFR\FRec314\FRec314.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /im "FRec314.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)\FIVsoftFR\FRec314\FRec314.exeFilesize
3.2MB
MD518ddc549ecc50d8c894721e27643c461
SHA17f5ed6b5eeda09cd7a9a363ecd401cb5a9bd3cda
SHA2563833684b6dc637f8c009a29e545918a0901f2868f27dc8b8e5e2e0271ec50545
SHA5126fe3befd5de81c6d14f1a14dc64539745e430492149cad147abd3fccc0e4dda863116abe0174050eb11980ed1f2219799d9006f4fb092a3c8ef91dd582d84f4a
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C:\Program Files (x86)\FIVsoftFR\FRec314\FRec314.exeFilesize
3.2MB
MD518ddc549ecc50d8c894721e27643c461
SHA17f5ed6b5eeda09cd7a9a363ecd401cb5a9bd3cda
SHA2563833684b6dc637f8c009a29e545918a0901f2868f27dc8b8e5e2e0271ec50545
SHA5126fe3befd5de81c6d14f1a14dc64539745e430492149cad147abd3fccc0e4dda863116abe0174050eb11980ed1f2219799d9006f4fb092a3c8ef91dd582d84f4a
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C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\4HAJQ22Y\dll[1].htmFilesize
1B
MD5cfcd208495d565ef66e7dff9f98764da
SHA1b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA2565feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA51231bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
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C:\Users\Admin\AppData\Local\Temp\is-A4SL0.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-A4SL0.tmp\_isetup\_isdecmp.dllFilesize
13KB
MD5a813d18268affd4763dde940246dc7e5
SHA1c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA256e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
SHA512b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4
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C:\Users\Admin\AppData\Local\Temp\is-A4SL0.tmp\_isetup\_isdecmp.dllFilesize
13KB
MD5a813d18268affd4763dde940246dc7e5
SHA1c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA256e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
SHA512b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4
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C:\Users\Admin\AppData\Local\Temp\is-JANV7.tmp\is-32CA1.tmpFilesize
658KB
MD571c654797ffa6853389354687dde286b
SHA1edd7178ab9043acc4a05dddb9dad972ede2f7748
SHA25697d7825ef37d313e47642ba48ad2a4421fb4b63dfcb2cf09029906939e527f04
SHA512d05bbc1d7fccbc39a214f1a4ccebbd52963a5189d1a5dbabf8894fb085cb00e681d15d6c9aa8e2f7d90bafa9c7d45a07a9b5c2434ca6aafd0ac8944b46b90e7a
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C:\Users\Admin\AppData\Local\Temp\is-JANV7.tmp\is-32CA1.tmpFilesize
658KB
MD571c654797ffa6853389354687dde286b
SHA1edd7178ab9043acc4a05dddb9dad972ede2f7748
SHA25697d7825ef37d313e47642ba48ad2a4421fb4b63dfcb2cf09029906939e527f04
SHA512d05bbc1d7fccbc39a214f1a4ccebbd52963a5189d1a5dbabf8894fb085cb00e681d15d6c9aa8e2f7d90bafa9c7d45a07a9b5c2434ca6aafd0ac8944b46b90e7a
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C:\Users\Admin\AppData\Roaming\{7f74da3b-b191-11ed-abe8-806e6f6e6963}\Jes5hoyx.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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C:\Users\Admin\AppData\Roaming\{7f74da3b-b191-11ed-abe8-806e6f6e6963}\Jes5hoyx.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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memory/212-172-0x0000000000400000-0x000000000153A000-memory.dmpFilesize
17.2MB
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memory/212-180-0x0000000010000000-0x000000001001B000-memory.dmpFilesize
108KB
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memory/212-188-0x0000000000400000-0x000000000153A000-memory.dmpFilesize
17.2MB
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memory/212-171-0x0000000000400000-0x000000000153A000-memory.dmpFilesize
17.2MB
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memory/212-203-0x0000000000400000-0x000000000153A000-memory.dmpFilesize
17.2MB
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memory/564-186-0x0000000000400000-0x00000000004B3000-memory.dmpFilesize
716KB
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memory/564-204-0x0000000000400000-0x00000000004B3000-memory.dmpFilesize
716KB
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memory/564-154-0x00000000005C0000-0x00000000005C1000-memory.dmpFilesize
4KB
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memory/2308-133-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/2308-185-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/2308-205-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB