Analysis
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max time kernel
152s -
max time network
155s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
01-10-2022 22:54
Static task
static1
Behavioral task
behavioral1
Sample
34603cc63fb50d77a917d3c7a784331f419a67f9655d2808b443c98e38092677.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
34603cc63fb50d77a917d3c7a784331f419a67f9655d2808b443c98e38092677.exe
Resource
win10v2004-20220812-en
General
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Target
34603cc63fb50d77a917d3c7a784331f419a67f9655d2808b443c98e38092677.exe
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Size
33KB
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MD5
6fbbf6accff050bb1ea7cb45d4d68490
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SHA1
8735565a7c7fb6c7dcc30d00c865d153965fd0c9
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SHA256
34603cc63fb50d77a917d3c7a784331f419a67f9655d2808b443c98e38092677
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SHA512
8d2e87864d5850d86eb8dc9c23f0ee95c4b1103f9529bbb9d944ea7995d10a7c07605a1e7a836cdcd33c974ba768beac4c5fa66986f56fc93b259f521c59c61b
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SSDEEP
768:71Y8OVaUnQ1Y8sEpKoCvutBW5dO7H1S8Mo/LYvl:u8tUnQ17uutBWj6H0iYd
Malware Config
Extracted
njrat
0.7d
HacKed
ffgga.ddns.net:5552
341703a1cce6a06cd235f6c59cfda95c
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reg_key
341703a1cce6a06cd235f6c59cfda95c
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splitter
|'|'|
Signatures
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Executes dropped EXE 1 IoCs
Processes:
hm.exepid process 820 hm.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
hm.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\341703a1cce6a06cd235f6c59cfda95c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\hm.exe\" .." hm.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\341703a1cce6a06cd235f6c59cfda95c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\hm.exe\" .." hm.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 17 IoCs
Processes:
hm.exedescription pid process Token: SeDebugPrivilege 820 hm.exe Token: 33 820 hm.exe Token: SeIncBasePriorityPrivilege 820 hm.exe Token: 33 820 hm.exe Token: SeIncBasePriorityPrivilege 820 hm.exe Token: 33 820 hm.exe Token: SeIncBasePriorityPrivilege 820 hm.exe Token: 33 820 hm.exe Token: SeIncBasePriorityPrivilege 820 hm.exe Token: 33 820 hm.exe Token: SeIncBasePriorityPrivilege 820 hm.exe Token: 33 820 hm.exe Token: SeIncBasePriorityPrivilege 820 hm.exe Token: 33 820 hm.exe Token: SeIncBasePriorityPrivilege 820 hm.exe Token: 33 820 hm.exe Token: SeIncBasePriorityPrivilege 820 hm.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
34603cc63fb50d77a917d3c7a784331f419a67f9655d2808b443c98e38092677.exehm.exedescription pid process target process PID 1736 wrote to memory of 820 1736 34603cc63fb50d77a917d3c7a784331f419a67f9655d2808b443c98e38092677.exe hm.exe PID 1736 wrote to memory of 820 1736 34603cc63fb50d77a917d3c7a784331f419a67f9655d2808b443c98e38092677.exe hm.exe PID 1736 wrote to memory of 820 1736 34603cc63fb50d77a917d3c7a784331f419a67f9655d2808b443c98e38092677.exe hm.exe PID 820 wrote to memory of 1008 820 hm.exe netsh.exe PID 820 wrote to memory of 1008 820 hm.exe netsh.exe PID 820 wrote to memory of 1008 820 hm.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\34603cc63fb50d77a917d3c7a784331f419a67f9655d2808b443c98e38092677.exe"C:\Users\Admin\AppData\Local\Temp\34603cc63fb50d77a917d3c7a784331f419a67f9655d2808b443c98e38092677.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\hm.exe"C:\Users\Admin\AppData\Local\Temp\hm.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\hm.exe" "hm.exe" ENABLE3⤵
- Modifies Windows Firewall
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\hm.exeFilesize
33KB
MD56fbbf6accff050bb1ea7cb45d4d68490
SHA18735565a7c7fb6c7dcc30d00c865d153965fd0c9
SHA25634603cc63fb50d77a917d3c7a784331f419a67f9655d2808b443c98e38092677
SHA5128d2e87864d5850d86eb8dc9c23f0ee95c4b1103f9529bbb9d944ea7995d10a7c07605a1e7a836cdcd33c974ba768beac4c5fa66986f56fc93b259f521c59c61b
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C:\Users\Admin\AppData\Local\Temp\hm.exeFilesize
33KB
MD56fbbf6accff050bb1ea7cb45d4d68490
SHA18735565a7c7fb6c7dcc30d00c865d153965fd0c9
SHA25634603cc63fb50d77a917d3c7a784331f419a67f9655d2808b443c98e38092677
SHA5128d2e87864d5850d86eb8dc9c23f0ee95c4b1103f9529bbb9d944ea7995d10a7c07605a1e7a836cdcd33c974ba768beac4c5fa66986f56fc93b259f521c59c61b
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memory/820-58-0x0000000000000000-mapping.dmp
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memory/820-61-0x0000000000F20000-0x0000000000F2E000-memory.dmpFilesize
56KB
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memory/1008-62-0x0000000000000000-mapping.dmp
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memory/1736-54-0x0000000000E10000-0x0000000000E1E000-memory.dmpFilesize
56KB
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memory/1736-55-0x00000000003D0000-0x00000000003DE000-memory.dmpFilesize
56KB
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memory/1736-56-0x0000000000400000-0x000000000040C000-memory.dmpFilesize
48KB
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memory/1736-57-0x000007FEFB741000-0x000007FEFB743000-memory.dmpFilesize
8KB