Analysis
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max time kernel
91s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
10-01-2023 06:02
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
General
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Target
file.exe
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Size
1.0MB
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MD5
f3bcacc5b0cfa233c039cd425a13760a
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SHA1
eac25c64bc264fb271457e48a10944cf9acef930
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SHA256
f735f215e6010f4bfd2290516b6eea1401ef8a27712c7a5d78f1c63b76d0eb06
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SHA512
7d21dff743940351e06795fdf0c16ca8adb39154b88298f85c878db67dca4b2e9f4dceeca634e7874f8e30c321d948fedb6844fbfbbb5af92c70cf1e39c3bb1a
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SSDEEP
24576:R20l0rtOQxMeGoozHQ7pq7Kg8grGu8z52YT1s6Skl5l/Hld:R21OQGnoqUaMcal5V
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
Processes:
file.tmpKitFiles136.exenXGXoQKValAv.exepid process 1096 file.tmp 2576 KitFiles136.exe 1312 nXGXoQKValAv.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
KitFiles136.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation KitFiles136.exe -
Loads dropped DLL 1 IoCs
Processes:
file.tmppid process 1096 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 17 IoCs
Processes:
file.tmpdescription ioc process File created C:\Program Files (x86)\Split Files\is-P83DV.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-J6NL9.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-C8TL3.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-U32K1.tmp file.tmp File created C:\Program Files (x86)\Split Files\unins000.dat file.tmp File created C:\Program Files (x86)\Split Files\is-QM0E0.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-3PU20.tmp file.tmp File opened for modification C:\Program Files (x86)\Split Files\unins000.dat file.tmp File created C:\Program Files (x86)\Split Files\language\is-7JKIL.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-MQDGI.tmp file.tmp File opened for modification C:\Program Files (x86)\Split Files\KitFiles136.exe file.tmp File created C:\Program Files (x86)\Split Files\language\is-PJL7F.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-D3J3I.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-EUOH8.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-V9BRU.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-3P5U5.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-RM6GV.tmp 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 644 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
KitFiles136.exepid process 2576 KitFiles136.exe 2576 KitFiles136.exe 2576 KitFiles136.exe 2576 KitFiles136.exe 2576 KitFiles136.exe 2576 KitFiles136.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 644 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
file.exefile.tmpKitFiles136.execmd.exedescription pid process target process PID 432 wrote to memory of 1096 432 file.exe file.tmp PID 432 wrote to memory of 1096 432 file.exe file.tmp PID 432 wrote to memory of 1096 432 file.exe file.tmp PID 1096 wrote to memory of 2576 1096 file.tmp KitFiles136.exe PID 1096 wrote to memory of 2576 1096 file.tmp KitFiles136.exe PID 1096 wrote to memory of 2576 1096 file.tmp KitFiles136.exe PID 2576 wrote to memory of 1312 2576 KitFiles136.exe nXGXoQKValAv.exe PID 2576 wrote to memory of 1312 2576 KitFiles136.exe nXGXoQKValAv.exe PID 2576 wrote to memory of 1312 2576 KitFiles136.exe nXGXoQKValAv.exe PID 2576 wrote to memory of 4784 2576 KitFiles136.exe cmd.exe PID 2576 wrote to memory of 4784 2576 KitFiles136.exe cmd.exe PID 2576 wrote to memory of 4784 2576 KitFiles136.exe cmd.exe PID 4784 wrote to memory of 644 4784 cmd.exe taskkill.exe PID 4784 wrote to memory of 644 4784 cmd.exe taskkill.exe PID 4784 wrote to memory of 644 4784 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
PID:432 -
C:\Users\Admin\AppData\Local\Temp\is-JC1I7.tmp\file.tmp"C:\Users\Admin\AppData\Local\Temp\is-JC1I7.tmp\file.tmp" /SL5="$B01D8,853614,51712,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
PID:1096 -
C:\Program Files (x86)\Split Files\KitFiles136.exe"C:\Program Files (x86)\Split Files\KitFiles136.exe"3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2576 -
C:\Users\Admin\AppData\Roaming\{6eb576c0-6208-11ed-9190-806e6f6e6963}\nXGXoQKValAv.exe4⤵
- Executes dropped EXE
PID:1312 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "KitFiles136.exe" /f & erase "C:\Program Files (x86)\Split Files\KitFiles136.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:4784 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "KitFiles136.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:644
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.6MB
MD5cec1463bde2c47f7d171d3a08b76d851
SHA1005eb284c5e8dfa1cf25719a6635c71b115987bd
SHA2567619ddf402d89ff95426fd0f04f87d2aaf9f6a28be847c4c3acdc17f8d976822
SHA5120188a5017fd88af351c48a61e6194aadcdc0eb089209fa5faab4497039c62971831a6ec846c078c6ae7300807515ef8d0280b8e7306e1e2cd9ae17be00d1e7d9
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Filesize
1.6MB
MD5cec1463bde2c47f7d171d3a08b76d851
SHA1005eb284c5e8dfa1cf25719a6635c71b115987bd
SHA2567619ddf402d89ff95426fd0f04f87d2aaf9f6a28be847c4c3acdc17f8d976822
SHA5120188a5017fd88af351c48a61e6194aadcdc0eb089209fa5faab4497039c62971831a6ec846c078c6ae7300807515ef8d0280b8e7306e1e2cd9ae17be00d1e7d9
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
692KB
MD5011df348d33aeb3103be711e7aaad000
SHA1eff06d4777d24ab7c2384737b846b7df7c9dd5ae
SHA2564f50389dd834b3268fcc673f791d82a61142eeb7baaa54a03668516df18507ef
SHA512e4b76ac1058880a8ba633f0ff37657594a92231cc6093b80dc6c3617d3edd045f1a3592c2b04cf5acbdbb599d2e4b9e079a47e92692912f4f0d7d189dd14b375
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Filesize
692KB
MD5011df348d33aeb3103be711e7aaad000
SHA1eff06d4777d24ab7c2384737b846b7df7c9dd5ae
SHA2564f50389dd834b3268fcc673f791d82a61142eeb7baaa54a03668516df18507ef
SHA512e4b76ac1058880a8ba633f0ff37657594a92231cc6093b80dc6c3617d3edd045f1a3592c2b04cf5acbdbb599d2e4b9e079a47e92692912f4f0d7d189dd14b375
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c