Analysis
- max time kernel
149s - max time network
114s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
03/03/2024, 10:36
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
virussign.com_ab89480a9cd73889e1ff4cb72d40fb50.exe
Resource
win7-20240221-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
virussign.com_ab89480a9cd73889e1ff4cb72d40fb50.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target virussign.com_ab89480a9cd73889e1ff4cb72d40fb50.exe
- Size 240KB
- Sample240303-mndabahf76
- SHA256 7680c338cce9a2739ed9171976d8cb361e4e755d1ba455ec136c1ea30643aa95
- MD5 ab89480a9cd73889e1ff4cb72d40fb50
- SHA1 af0ffaf2acc64bd6089cd98c772b4c64432105cf
- SHA512 83f67c5acb53df85c3623f2d27386fb3c19a1be456aa93cfe97b17438faaf1933b2bc84407e6fe9501b70d219fdb4ec73661137e45b54b3ceb1d3c27d1fdd345
- SSDEEP 3072:zDkNwT8j6VlpuBd90i/SmWKLi7CjFSivnfu3fbMdozt5czH0R:nq0UGKGkFRKfeoztOO
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" virussign.com_ab89480a9cd73889e1ff4cb72d40fb50.exe Set value (int) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yspoz.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation virussign.com_ab89480a9cd73889e1ff4cb72d40fb50.exe - Executes dropped EXE 1 IoCs
pid Process 1616 yspoz.exe - Adds Run key to start application 2 TTPs 27 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /r" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /u" virussign.com_ab89480a9cd73889e1ff4cb72d40fb50.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /o" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /g" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /f" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /b" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /l" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /q" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /m" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /v" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /a" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /y" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /e" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /z" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /p" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /u" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /w" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /k" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /n" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /c" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /s" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /j" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /h" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /d" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /t" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /x" yspoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yspoz = "C:\\Users\\Admin\\yspoz.exe /i" yspoz.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3296 virussign.com_ab89480a9cd73889e1ff4cb72d40fb50.exe 3296 virussign.com_ab89480a9cd73889e1ff4cb72d40fb50.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe 1616 yspoz.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3296 virussign.com_ab89480a9cd73889e1ff4cb72d40fb50.exe 1616 yspoz.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3296 wrote to memory of 1616 3296 virussign.com_ab89480a9cd73889e1ff4cb72d40fb50.exe 92 PID 3296 wrote to memory of 1616 3296 virussign.com_ab89480a9cd73889e1ff4cb72d40fb50.exe 92 PID 3296 wrote to memory of 1616 3296 virussign.com_ab89480a9cd73889e1ff4cb72d40fb50.exe 92
Processes
-
C:\Users\Admin\AppData\Local\Temp\virussign.com_ab89480a9cd73889e1ff4cb72d40fb50.exe"C:\Users\Admin\AppData\Local\Temp\virussign.com_ab89480a9cd73889e1ff4cb72d40fb50.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3296 -
C:\Users\Admin\yspoz.exe"C:\Users\Admin\yspoz.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1616
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\yspoz.exe
- Size 240KB
- SHA256 83bc3147ec19adaa523b97fdbf484d7ee470965f8f8bae709f279eb3520c9a7b
- MD5 91e1d469a913c822d7492a3ee0a8de20
- SHA1 97d7a089da7cc68d1a50346c016a5382fed5b965
- SHA512 3c79f766aaed9d06e5644eef6e46cae4a7e175025414d0072324758631d7977c8bad4f0958933e4352e86b88af3e354c1571f1332f967fd5662e7c0850751db3
- SSDEEP 3072:zmkNFYdT8j6VlpuBd90i/SmWKLi7CjFSivnfu3fbMdozt5czH18:Cmh0UGKGkFRKfeoztO+
- MD5 SHA1 SHA512 SSDEEP