Analysis
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max time kernel
141s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
10-01-2023 13:47
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
1.1MB
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MD5
5a5d4b759f82b5e845018e1bd404e5f5
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SHA1
e82e42450d6348659fc927547392269a3dd824c7
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SHA256
f75725a0b68fcc99f81e967f9ab170d388cda7b8b3c09056bbb4e94eaadd5742
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SHA512
6783b39670f3cf6713f867506cc438f9237c1e96a044a152222bac9caf378086a539cc6db14ffe57b68fed40fb0c7727e48338ed4acbf50ade8b8962fb7d2d09
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SSDEEP
24576:R20+WBOAndYm6+J8LFepvlzehp+Db+/r3EqSkl5l/Hld:R23An/6IlpvhOpkbYrfl5V
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.exe3NTrqdLO.exepid process 2604 file.tmp 4168 KitFiles136.exe 5104 3NTrqdLO.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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation KitFiles136.exe -
Loads dropped DLL 1 IoCs
Processes:
file.tmppid process 2604 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\language\is-79O14.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-8KUBS.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-U5548.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-TOFBL.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-N2P88.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-EG2UK.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-30QCS.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-SQMPG.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-HC32R.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-14RRU.tmp file.tmp File created C:\Program Files (x86)\Split Files\unins000.dat file.tmp File created C:\Program Files (x86)\Split Files\language\is-G85OK.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-CQDIT.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-UL42D.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-3C8I8.tmp file.tmp File opened for modification C:\Program Files (x86)\Split Files\unins000.dat file.tmp File opened for modification C:\Program Files (x86)\Split Files\KitFiles136.exe 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 1496 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
KitFiles136.exepid process 4168 KitFiles136.exe 4168 KitFiles136.exe 4168 KitFiles136.exe 4168 KitFiles136.exe 4168 KitFiles136.exe 4168 KitFiles136.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 1496 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
file.exefile.tmpKitFiles136.execmd.exedescription pid process target process PID 4348 wrote to memory of 2604 4348 file.exe file.tmp PID 4348 wrote to memory of 2604 4348 file.exe file.tmp PID 4348 wrote to memory of 2604 4348 file.exe file.tmp PID 2604 wrote to memory of 4168 2604 file.tmp KitFiles136.exe PID 2604 wrote to memory of 4168 2604 file.tmp KitFiles136.exe PID 2604 wrote to memory of 4168 2604 file.tmp KitFiles136.exe PID 4168 wrote to memory of 5104 4168 KitFiles136.exe 3NTrqdLO.exe PID 4168 wrote to memory of 5104 4168 KitFiles136.exe 3NTrqdLO.exe PID 4168 wrote to memory of 5104 4168 KitFiles136.exe 3NTrqdLO.exe PID 4168 wrote to memory of 4660 4168 KitFiles136.exe cmd.exe PID 4168 wrote to memory of 4660 4168 KitFiles136.exe cmd.exe PID 4168 wrote to memory of 4660 4168 KitFiles136.exe cmd.exe PID 4660 wrote to memory of 1496 4660 cmd.exe taskkill.exe PID 4660 wrote to memory of 1496 4660 cmd.exe taskkill.exe PID 4660 wrote to memory of 1496 4660 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:4348 -
C:\Users\Admin\AppData\Local\Temp\is-KV41I.tmp\file.tmp"C:\Users\Admin\AppData\Local\Temp\is-KV41I.tmp\file.tmp" /SL5="$80052,895935,51712,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:2604 -
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:4168 -
C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\3NTrqdLO.exe4⤵
- Executes dropped EXE
PID:5104 -
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:4660 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "KitFiles136.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1496
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.6MB
MD584eac5cec8da2459d8e0580de5af4e1d
SHA102a9a431c8f3ab358a21062c2a72106c29d8a389
SHA25616e3c05e12a65139a61312d53e97aa2597c02e2e51d8337ff1ab1624e17b87c0
SHA512d4e39084afd8fba01327bb56bea8cc0a242bd4ff02c86ee4db94d6b7613881f73ab5c9678936b39fd1eb25d7786e0cf6207f9c879ac4510e0501a636e14fe68b
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Filesize
1.6MB
MD584eac5cec8da2459d8e0580de5af4e1d
SHA102a9a431c8f3ab358a21062c2a72106c29d8a389
SHA25616e3c05e12a65139a61312d53e97aa2597c02e2e51d8337ff1ab1624e17b87c0
SHA512d4e39084afd8fba01327bb56bea8cc0a242bd4ff02c86ee4db94d6b7613881f73ab5c9678936b39fd1eb25d7786e0cf6207f9c879ac4510e0501a636e14fe68b
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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
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c