Analysis
-
max time kernel
149s -
max time network
148s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
18-01-2021 16:26
Static task
static1
Behavioral task
behavioral1
Sample
USD35900.exe
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
USD35900.exe
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
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Target
USD35900.exe
-
Size
836KB
-
MD5
1982963b64d323f39033d40641437595
-
SHA1
8dde953e501af236d8be98dbf6d683fda458ba38
-
SHA256
60119cfc3cd6b63295c163fad7ab43949d62d5ed6bb024cd3054a2c64e8339c7
-
SHA512
75481182ea78ca9e6ee9022db2e2cfb869419a779e37e149d8c70da3e3f8132dcffcb53a368311bd7dfbe13dab1ee2eae7846aefd361848a375f91d4f61e31b1
Score
10/10
Malware Config
Extracted
Family
remcos
C2
79.134.225.19:2556
Signatures
-
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
USD35900.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\Yqjbm = "C:\\Users\\Admin\\mbjqY.url" USD35900.exe -
Script User-Agent 2 IoCs
Uses user-agent string associated with script host/environment.
Processes:
description flow ioc HTTP User-Agent header 17 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 19 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
USD35900.exepid process 3132 USD35900.exe 3132 USD35900.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
USD35900.exedescription pid process target process PID 3132 wrote to memory of 3040 3132 USD35900.exe ieinstal.exe PID 3132 wrote to memory of 3040 3132 USD35900.exe ieinstal.exe PID 3132 wrote to memory of 3040 3132 USD35900.exe ieinstal.exe PID 3132 wrote to memory of 3040 3132 USD35900.exe ieinstal.exe PID 3132 wrote to memory of 3040 3132 USD35900.exe ieinstal.exe PID 3132 wrote to memory of 3040 3132 USD35900.exe ieinstal.exe PID 3132 wrote to memory of 3040 3132 USD35900.exe ieinstal.exe PID 3132 wrote to memory of 3040 3132 USD35900.exe ieinstal.exe PID 3132 wrote to memory of 3040 3132 USD35900.exe ieinstal.exe PID 3132 wrote to memory of 3040 3132 USD35900.exe ieinstal.exe PID 3132 wrote to memory of 3040 3132 USD35900.exe ieinstal.exe PID 3132 wrote to memory of 3040 3132 USD35900.exe ieinstal.exe PID 3132 wrote to memory of 3040 3132 USD35900.exe ieinstal.exe PID 3132 wrote to memory of 3040 3132 USD35900.exe ieinstal.exe PID 3132 wrote to memory of 3040 3132 USD35900.exe ieinstal.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\USD35900.exe"C:\Users\Admin\AppData\Local\Temp\USD35900.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\internet explorer\ieinstal.exe"C:\Program Files (x86)\internet explorer\ieinstal.exe"2⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/3040-3-0x0000000002CC0000-0x0000000002CC1000-memory.dmpFilesize
4KB
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memory/3040-4-0x0000000000000000-mapping.dmp
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memory/3040-5-0x0000000002D80000-0x0000000002D81000-memory.dmpFilesize
4KB
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memory/3040-7-0x0000000002D20000-0x0000000002D21000-memory.dmpFilesize
4KB
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memory/3040-13-0x0000000000400000-0x0000000000421000-memory.dmpFilesize
132KB
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memory/3040-12-0x0000000010540000-0x0000000010564000-memory.dmpFilesize
144KB
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memory/3132-2-0x0000000000680000-0x0000000000681000-memory.dmpFilesize
4KB