Analysis
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max time kernel
52s -
max time network
54s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
10-01-2023 08:31
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
f513380ecac4532b60d76faf2c45124b
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SHA1
a6bd7b8b77c017e854c52e981232981cefcca373
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SHA256
e223afe1be87cb857dcbe6b21c4ceb0c78a25d4ea2983ac25abb9d58fd9d275d
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SHA512
05719644e9a3269f6d1a8b353f28918a4a53d7dd5ce2b23868b2385d044adcb3abc1bd71cecedcb54396975e25cf7e7bcc2c4c400dd2292f6a6e61c6f73c1122
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SSDEEP
24576:R20h5IK4tUIqejthdeuRPV5yYCLpuRFjNJOYmOo7XSSkl5l/Hld:R2O4Lhv90YCluRFpJDmOMol5V
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.exeZSfRJ.exepid process 1632 file.tmp 1984 KitFiles136.exe 1048 ZSfRJ.exe -
Loads dropped DLL 6 IoCs
Processes:
file.exefile.tmpKitFiles136.exepid process 1588 file.exe 1632 file.tmp 1632 file.tmp 1632 file.tmp 1632 file.tmp 1984 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\language\is-TBM2G.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\is-P3LVI.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-8ST01.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-ST7US.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-F89G2.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-33B83.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-VUHFC.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-9HVS9.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-PTB19.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-DLA92.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-O2RV2.tmp file.tmp File created C:\Program Files (x86)\Split Files\language\is-CBA1M.tmp file.tmp File created C:\Program Files (x86)\Split Files\is-34PO0.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-3UCR6.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 1496 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
KitFiles136.exepid process 1984 KitFiles136.exe 1984 KitFiles136.exe 1984 KitFiles136.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 1496 taskkill.exe -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
file.exefile.tmpKitFiles136.execmd.exedescription pid process target process PID 1588 wrote to memory of 1632 1588 file.exe file.tmp PID 1588 wrote to memory of 1632 1588 file.exe file.tmp PID 1588 wrote to memory of 1632 1588 file.exe file.tmp PID 1588 wrote to memory of 1632 1588 file.exe file.tmp PID 1588 wrote to memory of 1632 1588 file.exe file.tmp PID 1588 wrote to memory of 1632 1588 file.exe file.tmp PID 1588 wrote to memory of 1632 1588 file.exe file.tmp PID 1632 wrote to memory of 1984 1632 file.tmp KitFiles136.exe PID 1632 wrote to memory of 1984 1632 file.tmp KitFiles136.exe PID 1632 wrote to memory of 1984 1632 file.tmp KitFiles136.exe PID 1632 wrote to memory of 1984 1632 file.tmp KitFiles136.exe PID 1984 wrote to memory of 1048 1984 KitFiles136.exe ZSfRJ.exe PID 1984 wrote to memory of 1048 1984 KitFiles136.exe ZSfRJ.exe PID 1984 wrote to memory of 1048 1984 KitFiles136.exe ZSfRJ.exe PID 1984 wrote to memory of 1048 1984 KitFiles136.exe ZSfRJ.exe PID 1984 wrote to memory of 1812 1984 KitFiles136.exe cmd.exe PID 1984 wrote to memory of 1812 1984 KitFiles136.exe cmd.exe PID 1984 wrote to memory of 1812 1984 KitFiles136.exe cmd.exe PID 1984 wrote to memory of 1812 1984 KitFiles136.exe cmd.exe PID 1812 wrote to memory of 1496 1812 cmd.exe taskkill.exe PID 1812 wrote to memory of 1496 1812 cmd.exe taskkill.exe PID 1812 wrote to memory of 1496 1812 cmd.exe taskkill.exe PID 1812 wrote to memory of 1496 1812 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:1588 -
C:\Users\Admin\AppData\Local\Temp\is-VDF0N.tmp\file.tmp"C:\Users\Admin\AppData\Local\Temp\is-VDF0N.tmp\file.tmp" /SL5="$80126,867093,51712,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:1632 -
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:1984 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\ZSfRJ.exe4⤵
- Executes dropped EXE
PID:1048 -
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:1812 -
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
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Downloads
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Filesize
1.6MB
MD5b068f81a45ba26e67d5587d13cc3c52e
SHA18c033525ef8219110ac434259df8efc076d5af21
SHA2567b2c6109624fab7d31a3e5bbf3841cda1e3277d4cd6444049dd5466037136bd9
SHA512aae6034fcc58e2e7516cf7f765e79a2bf6c14b5dfc259909d93aef2563ff2e71b87c97c0ed2ef4525d922f08a9a7e843fe1afa85b447c38ed9475d14ceb63ccb
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Filesize
1.6MB
MD5b068f81a45ba26e67d5587d13cc3c52e
SHA18c033525ef8219110ac434259df8efc076d5af21
SHA2567b2c6109624fab7d31a3e5bbf3841cda1e3277d4cd6444049dd5466037136bd9
SHA512aae6034fcc58e2e7516cf7f765e79a2bf6c14b5dfc259909d93aef2563ff2e71b87c97c0ed2ef4525d922f08a9a7e843fe1afa85b447c38ed9475d14ceb63ccb
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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
MD5b068f81a45ba26e67d5587d13cc3c52e
SHA18c033525ef8219110ac434259df8efc076d5af21
SHA2567b2c6109624fab7d31a3e5bbf3841cda1e3277d4cd6444049dd5466037136bd9
SHA512aae6034fcc58e2e7516cf7f765e79a2bf6c14b5dfc259909d93aef2563ff2e71b87c97c0ed2ef4525d922f08a9a7e843fe1afa85b447c38ed9475d14ceb63ccb
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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