Analysis
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max time kernel
60s -
max time network
62s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
10-01-2023 17:02
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
General
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Target
file.exe
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Size
1.1MB
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MD5
4fea6e49f87990ae90945e9c94e97edc
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SHA1
4c52e0258e15f48a7e62dc14215c8438fce121a7
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SHA256
f28e2ce0fba538e298e8c905fed16979f7e01d2b9d9855e0de4f3e74cda8918a
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SHA512
ccfabda1d4a5e8d375d120521b964121f7dec25f902bd05678e07b99882315efd17649be2d798ae457eb151c68249d50d19edd220834575e124e1e766faf9d6e
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SSDEEP
24576:R20ovwQyGNLoNYOk3aX+qVob8pLbbYBt13MSkl5l/Hld:R2xvRoND9obuL3o+l5V
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.exeBHmhJFAHFlFgRO.exepid process 1092 file.tmp 1532 KitFiles136.exe 1744 BHmhJFAHFlFgRO.exe -
Loads dropped DLL 6 IoCs
Processes:
file.exefile.tmpKitFiles136.exepid process 1884 file.exe 1092 file.tmp 1092 file.tmp 1092 file.tmp 1092 file.tmp 1532 KitFiles136.exe -
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-DLRQU.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-9MHPK.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-ASLMP.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\unins000.dat file.tmp File created C:\Program Files (x86)\Split Files\language\is-EUDVS.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-GF05R.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-7F9HG.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-7E4NJ.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-1RNR4.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-4RSOI.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\is-8O1P6.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-OJO5T.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-8V73K.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-10H69.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-RT1E4.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 1524 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
KitFiles136.exepid process 1532 KitFiles136.exe 1532 KitFiles136.exe 1532 KitFiles136.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 1524 taskkill.exe -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
file.exefile.tmpKitFiles136.execmd.exedescription pid process target process PID 1884 wrote to memory of 1092 1884 file.exe file.tmp PID 1884 wrote to memory of 1092 1884 file.exe file.tmp PID 1884 wrote to memory of 1092 1884 file.exe file.tmp PID 1884 wrote to memory of 1092 1884 file.exe file.tmp PID 1884 wrote to memory of 1092 1884 file.exe file.tmp PID 1884 wrote to memory of 1092 1884 file.exe file.tmp PID 1884 wrote to memory of 1092 1884 file.exe file.tmp PID 1092 wrote to memory of 1532 1092 file.tmp KitFiles136.exe PID 1092 wrote to memory of 1532 1092 file.tmp KitFiles136.exe PID 1092 wrote to memory of 1532 1092 file.tmp KitFiles136.exe PID 1092 wrote to memory of 1532 1092 file.tmp KitFiles136.exe PID 1532 wrote to memory of 1744 1532 KitFiles136.exe BHmhJFAHFlFgRO.exe PID 1532 wrote to memory of 1744 1532 KitFiles136.exe BHmhJFAHFlFgRO.exe PID 1532 wrote to memory of 1744 1532 KitFiles136.exe BHmhJFAHFlFgRO.exe PID 1532 wrote to memory of 1744 1532 KitFiles136.exe BHmhJFAHFlFgRO.exe PID 1532 wrote to memory of 1580 1532 KitFiles136.exe cmd.exe PID 1532 wrote to memory of 1580 1532 KitFiles136.exe cmd.exe PID 1532 wrote to memory of 1580 1532 KitFiles136.exe cmd.exe PID 1532 wrote to memory of 1580 1532 KitFiles136.exe cmd.exe PID 1580 wrote to memory of 1524 1580 cmd.exe taskkill.exe PID 1580 wrote to memory of 1524 1580 cmd.exe taskkill.exe PID 1580 wrote to memory of 1524 1580 cmd.exe taskkill.exe PID 1580 wrote to memory of 1524 1580 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⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1884 -
C:\Users\Admin\AppData\Local\Temp\is-SFJRF.tmp\file.tmp"C:\Users\Admin\AppData\Local\Temp\is-SFJRF.tmp\file.tmp" /SL5="$60122,878759,51712,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:1092 -
C:\Program Files (x86)\Split Files\KitFiles136.exe"C:\Program Files (x86)\Split Files\KitFiles136.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1532 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\BHmhJFAHFlFgRO.exe4⤵
- Executes dropped EXE
PID:1744 -
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:1580 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "KitFiles136.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1524
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1.6MB
MD5b1a1b634e2eed11d6a949e857052f31d
SHA1733ecf059e076b59fdc472000f832b1a42ef7ee6
SHA2568474b83da0e24b3e115d425be9a180690f90f13981a57e16a9a142f1987be841
SHA5122c9e6061f812cef01425f384922496341da3a3fb2744bb2a7d939872aa82b0d360e39a91c9e1bafd5e20c9f6777894ff64b3e5c92e5496d1d35a35bda0aef7ab
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Filesize
1.6MB
MD5b1a1b634e2eed11d6a949e857052f31d
SHA1733ecf059e076b59fdc472000f832b1a42ef7ee6
SHA2568474b83da0e24b3e115d425be9a180690f90f13981a57e16a9a142f1987be841
SHA5122c9e6061f812cef01425f384922496341da3a3fb2744bb2a7d939872aa82b0d360e39a91c9e1bafd5e20c9f6777894ff64b3e5c92e5496d1d35a35bda0aef7ab
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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
1.6MB
MD5b1a1b634e2eed11d6a949e857052f31d
SHA1733ecf059e076b59fdc472000f832b1a42ef7ee6
SHA2568474b83da0e24b3e115d425be9a180690f90f13981a57e16a9a142f1987be841
SHA5122c9e6061f812cef01425f384922496341da3a3fb2744bb2a7d939872aa82b0d360e39a91c9e1bafd5e20c9f6777894ff64b3e5c92e5496d1d35a35bda0aef7ab
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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Filesize
692KB
MD5011df348d33aeb3103be711e7aaad000
SHA1eff06d4777d24ab7c2384737b846b7df7c9dd5ae
SHA2564f50389dd834b3268fcc673f791d82a61142eeb7baaa54a03668516df18507ef
SHA512e4b76ac1058880a8ba633f0ff37657594a92231cc6093b80dc6c3617d3edd045f1a3592c2b04cf5acbdbb599d2e4b9e079a47e92692912f4f0d7d189dd14b375
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c