Analysis
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max time kernel
150s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
22-09-2022 14:46
Behavioral task
behavioral1
Sample
8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exe
Resource
win10v2004-20220901-en
General
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Target
8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exe
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Size
27KB
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MD5
47bea8a28b1e81e3342d594fc57acd8e
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SHA1
d301e8985e53b7baabf9b45df087a017e3817742
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SHA256
8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4
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SHA512
d5f2bfa425fa0c8d7fe2531b57ed9dbe5ca9b8bb8b7a868e39b251182446a22bcf01c3181d17b3362bc2a76b56cda1e504db2436fafbf922ee2120f76e8d00b6
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SSDEEP
384:2LBH6uj/+AU9038hfOexuaP39hRnMYAQk93vmhm7UMKmIEecKdbXTzm9bVhcaL62:wBa0mkspJtyYA/vMHTi9bD
Malware Config
Extracted
njrat
v4.0
HacKed
216.250.251.104:2028
Windows
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reg_key
Windows
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splitter
|-F-|
Signatures
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Executes dropped EXE 1 IoCs
Processes:
Payload.exepid process 1744 Payload.exe -
Drops startup file 2 IoCs
Processes:
8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exePayload.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk 8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk Payload.exe -
Loads dropped DLL 1 IoCs
Processes:
8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exepid process 1788 8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Roaming\\Payload.exe" 8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of AdjustPrivilegeToken 19 IoCs
Processes:
Payload.exedescription pid process Token: SeDebugPrivilege 1744 Payload.exe Token: 33 1744 Payload.exe Token: SeIncBasePriorityPrivilege 1744 Payload.exe Token: 33 1744 Payload.exe Token: SeIncBasePriorityPrivilege 1744 Payload.exe Token: 33 1744 Payload.exe Token: SeIncBasePriorityPrivilege 1744 Payload.exe Token: 33 1744 Payload.exe Token: SeIncBasePriorityPrivilege 1744 Payload.exe Token: 33 1744 Payload.exe Token: SeIncBasePriorityPrivilege 1744 Payload.exe Token: 33 1744 Payload.exe Token: SeIncBasePriorityPrivilege 1744 Payload.exe Token: 33 1744 Payload.exe Token: SeIncBasePriorityPrivilege 1744 Payload.exe Token: 33 1744 Payload.exe Token: SeIncBasePriorityPrivilege 1744 Payload.exe Token: 33 1744 Payload.exe Token: SeIncBasePriorityPrivilege 1744 Payload.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exedescription pid process target process PID 1788 wrote to memory of 1744 1788 8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exe Payload.exe PID 1788 wrote to memory of 1744 1788 8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exe Payload.exe PID 1788 wrote to memory of 1744 1788 8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exe Payload.exe PID 1788 wrote to memory of 1744 1788 8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exe Payload.exe PID 1788 wrote to memory of 1528 1788 8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exe attrib.exe PID 1788 wrote to memory of 1528 1788 8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exe attrib.exe PID 1788 wrote to memory of 1528 1788 8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exe attrib.exe PID 1788 wrote to memory of 1528 1788 8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exe attrib.exe -
Views/modifies file attributes 1 TTPs 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exe"C:\Users\Admin\AppData\Local\Temp\8f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4.exe"1⤵
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Payload.exe"C:\Users\Admin\AppData\Roaming\Payload.exe"2⤵
- Executes dropped EXE
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\attrib.exeattrib +h +r +s "C:\Users\Admin\AppData\Roaming\Payload.exe"2⤵
- Views/modifies file attributes
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnkFilesize
1KB
MD5f345e1c49c052602fb8b548d39dade03
SHA1e364dc4b0df7f219d56d1ed451685d5111cedac3
SHA25671a185003b38f4acfd621c891f97cebdd92620bba7b300de8c66d793b18b0d92
SHA512ff0e090bdf54a603d4174378b46e76be1a53a8590ed4a787a8f140978588da774602799e916359110a1d48f91bb2cbda0fef1c1b41f4d960feda0e18ecc569a3
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.lnkFilesize
1018B
MD51ad6c4d7d80b5303ae85569d6ccd6afa
SHA144ef9137278b1376d80b66d33501cc6cca6e456d
SHA256867631ca4a0725392ced256f67d5ebaf917e3d7564c7e3189da3b8729dd7fa56
SHA512d8d8cf943522721133b2fff2392563c3f947241c56edc918d74be92c08444ff2eadbbb23c822d2bc8b5e9999b743bec288aa23f54cab2c770fa50671ee215c03
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C:\Users\Admin\AppData\Roaming\Payload.exeFilesize
27KB
MD547bea8a28b1e81e3342d594fc57acd8e
SHA1d301e8985e53b7baabf9b45df087a017e3817742
SHA2568f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4
SHA512d5f2bfa425fa0c8d7fe2531b57ed9dbe5ca9b8bb8b7a868e39b251182446a22bcf01c3181d17b3362bc2a76b56cda1e504db2436fafbf922ee2120f76e8d00b6
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C:\Users\Admin\AppData\Roaming\Payload.exeFilesize
27KB
MD547bea8a28b1e81e3342d594fc57acd8e
SHA1d301e8985e53b7baabf9b45df087a017e3817742
SHA2568f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4
SHA512d5f2bfa425fa0c8d7fe2531b57ed9dbe5ca9b8bb8b7a868e39b251182446a22bcf01c3181d17b3362bc2a76b56cda1e504db2436fafbf922ee2120f76e8d00b6
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\Users\Admin\AppData\Roaming\Payload.exeFilesize
27KB
MD547bea8a28b1e81e3342d594fc57acd8e
SHA1d301e8985e53b7baabf9b45df087a017e3817742
SHA2568f04eb500e66a053fa3e6e8a9900e94e794218253a172265c3a881db6f65faf4
SHA512d5f2bfa425fa0c8d7fe2531b57ed9dbe5ca9b8bb8b7a868e39b251182446a22bcf01c3181d17b3362bc2a76b56cda1e504db2436fafbf922ee2120f76e8d00b6
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memory/1528-62-0x0000000000000000-mapping.dmp
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memory/1744-57-0x0000000000000000-mapping.dmp
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memory/1744-60-0x0000000000080000-0x000000000008E000-memory.dmpFilesize
56KB
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memory/1788-54-0x0000000000310000-0x000000000031E000-memory.dmpFilesize
56KB
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memory/1788-55-0x00000000761F1000-0x00000000761F3000-memory.dmpFilesize
8KB