Analysis
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max time kernel
162s -
max time network
188s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
24-11-2022 22:25
Behavioral task
behavioral1
Sample
8dd2265487197ab2b2f16c99125a601a3f017a95b0e19f752051fe189a29f17c.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
8dd2265487197ab2b2f16c99125a601a3f017a95b0e19f752051fe189a29f17c.exe
Resource
win10v2004-20221111-en
General
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Target
8dd2265487197ab2b2f16c99125a601a3f017a95b0e19f752051fe189a29f17c.exe
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Size
23KB
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MD5
32f2552072f676c1e6f015d2f7304f23
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SHA1
0bc9defa91e27b066dd7c5f12b2e5b8ebedc8946
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SHA256
8dd2265487197ab2b2f16c99125a601a3f017a95b0e19f752051fe189a29f17c
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SHA512
3b7d1942daec9e5101ac7b045e2e999650d5a6ad863af62c7fcdfd408164351758e5abc8b334a536c6f5254dda44097c5c67914e44dc0685275bf636631139ea
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SSDEEP
384:a0jeCIYTNQZUuQnJXJeCXlwhPQ6VgDOwBHhdmRvR6JZlbw8hqIusZzZpFGrFM:F3jNAU/ZVX6Rpcnuk2e
Malware Config
Extracted
njrat
0.7d
HacKed by parosh
parosh22.ddns.net:1177
e4995e55c0970b64807d63edc8a971a5
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reg_key
e4995e55c0970b64807d63edc8a971a5
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splitter
|'|'|
Signatures
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Executes dropped EXE 1 IoCs
Processes:
chrome.exepid process 3208 chrome.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
8dd2265487197ab2b2f16c99125a601a3f017a95b0e19f752051fe189a29f17c.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation 8dd2265487197ab2b2f16c99125a601a3f017a95b0e19f752051fe189a29f17c.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
chrome.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e4995e55c0970b64807d63edc8a971a5 = "\"C:\\Users\\Admin\\AppData\\Roaming\\chrome.exe\" .." chrome.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\e4995e55c0970b64807d63edc8a971a5 = "\"C:\\Users\\Admin\\AppData\\Roaming\\chrome.exe\" .." chrome.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 9 IoCs
Processes:
chrome.exedescription pid process Token: SeDebugPrivilege 3208 chrome.exe Token: 33 3208 chrome.exe Token: SeIncBasePriorityPrivilege 3208 chrome.exe Token: 33 3208 chrome.exe Token: SeIncBasePriorityPrivilege 3208 chrome.exe Token: 33 3208 chrome.exe Token: SeIncBasePriorityPrivilege 3208 chrome.exe Token: 33 3208 chrome.exe Token: SeIncBasePriorityPrivilege 3208 chrome.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
8dd2265487197ab2b2f16c99125a601a3f017a95b0e19f752051fe189a29f17c.exechrome.exedescription pid process target process PID 2900 wrote to memory of 3208 2900 8dd2265487197ab2b2f16c99125a601a3f017a95b0e19f752051fe189a29f17c.exe chrome.exe PID 2900 wrote to memory of 3208 2900 8dd2265487197ab2b2f16c99125a601a3f017a95b0e19f752051fe189a29f17c.exe chrome.exe PID 2900 wrote to memory of 3208 2900 8dd2265487197ab2b2f16c99125a601a3f017a95b0e19f752051fe189a29f17c.exe chrome.exe PID 3208 wrote to memory of 4076 3208 chrome.exe netsh.exe PID 3208 wrote to memory of 4076 3208 chrome.exe netsh.exe PID 3208 wrote to memory of 4076 3208 chrome.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\8dd2265487197ab2b2f16c99125a601a3f017a95b0e19f752051fe189a29f17c.exe"C:\Users\Admin\AppData\Local\Temp\8dd2265487197ab2b2f16c99125a601a3f017a95b0e19f752051fe189a29f17c.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\chrome.exe"C:\Users\Admin\AppData\Roaming\chrome.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\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\chrome.exe" "chrome.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\Roaming\chrome.exeFilesize
23KB
MD532f2552072f676c1e6f015d2f7304f23
SHA10bc9defa91e27b066dd7c5f12b2e5b8ebedc8946
SHA2568dd2265487197ab2b2f16c99125a601a3f017a95b0e19f752051fe189a29f17c
SHA5123b7d1942daec9e5101ac7b045e2e999650d5a6ad863af62c7fcdfd408164351758e5abc8b334a536c6f5254dda44097c5c67914e44dc0685275bf636631139ea
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C:\Users\Admin\AppData\Roaming\chrome.exeFilesize
23KB
MD532f2552072f676c1e6f015d2f7304f23
SHA10bc9defa91e27b066dd7c5f12b2e5b8ebedc8946
SHA2568dd2265487197ab2b2f16c99125a601a3f017a95b0e19f752051fe189a29f17c
SHA5123b7d1942daec9e5101ac7b045e2e999650d5a6ad863af62c7fcdfd408164351758e5abc8b334a536c6f5254dda44097c5c67914e44dc0685275bf636631139ea
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memory/2900-132-0x0000000074710000-0x0000000074CC1000-memory.dmpFilesize
5.7MB
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memory/2900-133-0x0000000074710000-0x0000000074CC1000-memory.dmpFilesize
5.7MB
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memory/2900-137-0x0000000074710000-0x0000000074CC1000-memory.dmpFilesize
5.7MB
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memory/3208-134-0x0000000000000000-mapping.dmp
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memory/3208-138-0x0000000074710000-0x0000000074CC1000-memory.dmpFilesize
5.7MB
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memory/3208-139-0x0000000074710000-0x0000000074CC1000-memory.dmpFilesize
5.7MB
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memory/4076-140-0x0000000000000000-mapping.dmp