Analysis
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max time kernel
79s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20230221-en -
resource tags
arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system -
submitted
22-03-2023 23:02
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
00539a669280db2e0ad9698545726156
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SHA1
ec0cbbd1772173fc2ead1fe8e75b5bd20afc2a79
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SHA256
59d0992382ba2953514858b563ede4cbb4015af18494539bfb9be2d47a0c2270
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SHA512
30e1db5aabe273a8fd0ed101876d5db9b56890aef8a8f99fc9859ab389cf10fb83dc92ce466243b46f7b03536033e8fa7dc9d2c0718c784eb26eb0bf2d2a79aa
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SSDEEP
49152:EGlJfsEgZXIrjCQHNEefbwASqeg7MxVrUlVE1x6N/5dlLYp:5/gVUpfbwrqIxpN1EhPYp
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:
FRec322.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation FRec322.exe -
Executes dropped EXE 3 IoCs
Processes:
is-JMG5G.tmpFRec322.exeV77IwhUY87H7.exepid process 4812 is-JMG5G.tmp 1324 FRec322.exe 4204 V77IwhUY87H7.exe -
Loads dropped DLL 1 IoCs
Processes:
is-JMG5G.tmppid process 4812 is-JMG5G.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-JMG5G.tmpdescription ioc process File opened for modification C:\Program Files (x86)\FJAsoftFR\FRec322\FRec322.exe is-JMG5G.tmp File created C:\Program Files (x86)\FJAsoftFR\FRec322\unins000.dat is-JMG5G.tmp File created C:\Program Files (x86)\FJAsoftFR\FRec322\is-GDF54.tmp is-JMG5G.tmp File opened for modification C:\Program Files (x86)\FJAsoftFR\FRec322\unins000.dat is-JMG5G.tmp File created C:\Program Files (x86)\FJAsoftFR\FRec322\is-GCSRK.tmp is-JMG5G.tmp File created C:\Program Files (x86)\FJAsoftFR\FRec322\data\is-KVA8P.tmp is-JMG5G.tmp File created C:\Program Files (x86)\FJAsoftFR\FRec322\is-NSTRG.tmp is-JMG5G.tmp File created C:\Program Files (x86)\FJAsoftFR\FRec322\is-PDCLK.tmp is-JMG5G.tmp File created C:\Program Files (x86)\FJAsoftFR\FRec322\is-H70HJ.tmp is-JMG5G.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 2776 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
FRec322.exepid process 1324 FRec322.exe 1324 FRec322.exe 1324 FRec322.exe 1324 FRec322.exe 1324 FRec322.exe 1324 FRec322.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 2776 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
file.exeis-JMG5G.tmpFRec322.execmd.exedescription pid process target process PID 2268 wrote to memory of 4812 2268 file.exe is-JMG5G.tmp PID 2268 wrote to memory of 4812 2268 file.exe is-JMG5G.tmp PID 2268 wrote to memory of 4812 2268 file.exe is-JMG5G.tmp PID 4812 wrote to memory of 1324 4812 is-JMG5G.tmp FRec322.exe PID 4812 wrote to memory of 1324 4812 is-JMG5G.tmp FRec322.exe PID 4812 wrote to memory of 1324 4812 is-JMG5G.tmp FRec322.exe PID 1324 wrote to memory of 4204 1324 FRec322.exe V77IwhUY87H7.exe PID 1324 wrote to memory of 4204 1324 FRec322.exe V77IwhUY87H7.exe PID 1324 wrote to memory of 4204 1324 FRec322.exe V77IwhUY87H7.exe PID 1324 wrote to memory of 4340 1324 FRec322.exe cmd.exe PID 1324 wrote to memory of 4340 1324 FRec322.exe cmd.exe PID 1324 wrote to memory of 4340 1324 FRec322.exe cmd.exe PID 4340 wrote to memory of 2776 4340 cmd.exe taskkill.exe PID 4340 wrote to memory of 2776 4340 cmd.exe taskkill.exe PID 4340 wrote to memory of 2776 4340 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-NN7LG.tmp\is-JMG5G.tmp"C:\Users\Admin\AppData\Local\Temp\is-NN7LG.tmp\is-JMG5G.tmp" /SL4 $8006C "C:\Users\Admin\AppData\Local\Temp\file.exe" 1944387 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)\FJAsoftFR\FRec322\FRec322.exe"C:\Program Files (x86)\FJAsoftFR\FRec322\FRec322.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\{1877acc0-b1d5-11ed-8218-806e6f6e6963}\V77IwhUY87H7.exe
- Executes dropped EXE
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "FRec322.exe" /f & erase "C:\Program Files (x86)\FJAsoftFR\FRec322\FRec322.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\taskkill.exetaskkill /im "FRec322.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)\FJAsoftFR\FRec322\FRec322.exeFilesize
2.6MB
MD51851ffad7b4111a251370a6745ad68ee
SHA1310245cb395b60e4e3058d97f75fd47a3c62c3a9
SHA256a7f8432a08aa679dc1ad26a9152a925764043dac7801145b75c81297ada27946
SHA512c271a572dc8f3e1fb4c7d3694bd1031ada510840b7c348ccb560af0cb32dd8e0c1dd18da8c3bce6640e6595b6443f64319cd47b4ab2d8c1af167ae6529f9e873
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C:\Program Files (x86)\FJAsoftFR\FRec322\FRec322.exeFilesize
2.6MB
MD51851ffad7b4111a251370a6745ad68ee
SHA1310245cb395b60e4e3058d97f75fd47a3c62c3a9
SHA256a7f8432a08aa679dc1ad26a9152a925764043dac7801145b75c81297ada27946
SHA512c271a572dc8f3e1fb4c7d3694bd1031ada510840b7c348ccb560af0cb32dd8e0c1dd18da8c3bce6640e6595b6443f64319cd47b4ab2d8c1af167ae6529f9e873
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C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\RP56V4OA\dll[1].htmFilesize
1B
MD5cfcd208495d565ef66e7dff9f98764da
SHA1b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA2565feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA51231bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
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C:\Users\Admin\AppData\Local\Temp\is-12S7T.tmp\_isetup\_iscrypt.dllFilesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-NN7LG.tmp\is-JMG5G.tmpFilesize
659KB
MD563bdf487b26c0886dbced14bab4d4257
SHA1e3621d870aa54d552861f1c71dea1fb36d71def6
SHA256ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a
SHA512b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40
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C:\Users\Admin\AppData\Local\Temp\is-NN7LG.tmp\is-JMG5G.tmpFilesize
659KB
MD563bdf487b26c0886dbced14bab4d4257
SHA1e3621d870aa54d552861f1c71dea1fb36d71def6
SHA256ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a
SHA512b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40
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C:\Users\Admin\AppData\Roaming\{1877acc0-b1d5-11ed-8218-806e6f6e6963}\V77IwhUY87H7.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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C:\Users\Admin\AppData\Roaming\{1877acc0-b1d5-11ed-8218-806e6f6e6963}\V77IwhUY87H7.exeFilesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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memory/1324-166-0x0000000000400000-0x00000000014A0000-memory.dmpFilesize
16.6MB
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memory/1324-174-0x0000000010000000-0x000000001001B000-memory.dmpFilesize
108KB
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memory/1324-165-0x0000000000400000-0x00000000014A0000-memory.dmpFilesize
16.6MB
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memory/1324-182-0x0000000000400000-0x00000000014A0000-memory.dmpFilesize
16.6MB
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memory/1324-197-0x0000000000400000-0x00000000014A0000-memory.dmpFilesize
16.6MB
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memory/2268-199-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/2268-179-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/2268-133-0x0000000000400000-0x0000000000413000-memory.dmpFilesize
76KB
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memory/4812-152-0x0000000002330000-0x0000000002331000-memory.dmpFilesize
4KB
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memory/4812-198-0x0000000000400000-0x00000000004B4000-memory.dmpFilesize
720KB
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memory/4812-180-0x0000000000400000-0x00000000004B4000-memory.dmpFilesize
720KB