Analysis
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max time kernel
113s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
29-11-2024 10:08
Behavioral task
behavioral1
Sample
54a926ae1b58e435cb4c29908cd219b983997d7ccc22e653a7d21fb23fec2eb8N.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
54a926ae1b58e435cb4c29908cd219b983997d7ccc22e653a7d21fb23fec2eb8N.exe
Resource
win10v2004-20241007-en
General
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Target
54a926ae1b58e435cb4c29908cd219b983997d7ccc22e653a7d21fb23fec2eb8N.exe
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Size
68KB
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MD5
0e4a7e06790b055cd2ba00c41beaa2e0
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SHA1
945cb0eeab367b62af6cd054917eb1c5d8999cd0
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SHA256
54a926ae1b58e435cb4c29908cd219b983997d7ccc22e653a7d21fb23fec2eb8
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SHA512
1e760749104137c5e06196b773c02c086712b44d5bfa65c238cfcace988eae2d680795941a51a0a5dc767d707c03792a3650f299fd14e460602d2f9a675b5f41
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SSDEEP
1536:t2hsEQfjdYs2hsEQfjdYL2hsEQfjdYs2hsEQfjdYi:tdjusdjuLdjusdjui
Malware Config
Signatures
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Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
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Executes dropped EXE 1 IoCs
Processes:
videodrv.exepid Process 2956 videodrv.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
54a926ae1b58e435cb4c29908cd219b983997d7ccc22e653a7d21fb23fec2eb8N.exevideodrv.exedescription ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VideoDriver = "C:\\Windows\\videodrv.exe" 54a926ae1b58e435cb4c29908cd219b983997d7ccc22e653a7d21fb23fec2eb8N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VideoDriver = "C:\\Windows\\videodrv.exe" videodrv.exe -
Processes:
resource yara_rule behavioral1/memory/1856-0-0x0000000000400000-0x0000000000479000-memory.dmp upx behavioral1/files/0x00080000000120fd-7.dat upx behavioral1/memory/2956-9-0x0000000000400000-0x0000000000479000-memory.dmp upx behavioral1/memory/1856-15-0x0000000000400000-0x0000000000479000-memory.dmp upx behavioral1/memory/2956-16-0x0000000000400000-0x0000000000479000-memory.dmp upx behavioral1/memory/2956-127-0x0000000000400000-0x0000000000479000-memory.dmp upx behavioral1/memory/2956-129-0x0000000000400000-0x0000000000479000-memory.dmp upx behavioral1/memory/2956-130-0x0000000000400000-0x0000000000479000-memory.dmp upx behavioral1/memory/2956-131-0x0000000000400000-0x0000000000479000-memory.dmp upx -
Drops file in Windows directory 7 IoCs
Processes:
54a926ae1b58e435cb4c29908cd219b983997d7ccc22e653a7d21fb23fec2eb8N.exevideodrv.exedescription ioc Process File opened for modification C:\Windows\videodrv.exe 54a926ae1b58e435cb4c29908cd219b983997d7ccc22e653a7d21fb23fec2eb8N.exe File created C:\Windows\videodrv.exe videodrv.exe File opened for modification C:\Windows\videodrv.exe videodrv.exe File opened for modification C:\Windows\exe.tmp videodrv.exe File opened for modification C:\Windows\zip.tmp videodrv.exe File opened for modification C:\Windows\eml.tmp videodrv.exe File created C:\Windows\videodrv.exe 54a926ae1b58e435cb4c29908cd219b983997d7ccc22e653a7d21fb23fec2eb8N.exe -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
54a926ae1b58e435cb4c29908cd219b983997d7ccc22e653a7d21fb23fec2eb8N.exevideodrv.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 54a926ae1b58e435cb4c29908cd219b983997d7ccc22e653a7d21fb23fec2eb8N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language videodrv.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
54a926ae1b58e435cb4c29908cd219b983997d7ccc22e653a7d21fb23fec2eb8N.exedescription pid Process procid_target PID 1856 wrote to memory of 2956 1856 54a926ae1b58e435cb4c29908cd219b983997d7ccc22e653a7d21fb23fec2eb8N.exe 30 PID 1856 wrote to memory of 2956 1856 54a926ae1b58e435cb4c29908cd219b983997d7ccc22e653a7d21fb23fec2eb8N.exe 30 PID 1856 wrote to memory of 2956 1856 54a926ae1b58e435cb4c29908cd219b983997d7ccc22e653a7d21fb23fec2eb8N.exe 30 PID 1856 wrote to memory of 2956 1856 54a926ae1b58e435cb4c29908cd219b983997d7ccc22e653a7d21fb23fec2eb8N.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\54a926ae1b58e435cb4c29908cd219b983997d7ccc22e653a7d21fb23fec2eb8N.exe"C:\Users\Admin\AppData\Local\Temp\54a926ae1b58e435cb4c29908cd219b983997d7ccc22e653a7d21fb23fec2eb8N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1856 -
C:\Windows\videodrv.exeC:\Windows\videodrv.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2956
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
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Filesize
1KB
MD5c892cee0c52e0059141cb1fc3608d049
SHA1a20b41099ecfd0a72dd4b0c7703658cf70e81f01
SHA25611988327ab1b575d2180ebdf112ed9dfce2b0faf1749b87e2d0dfae56218b9b0
SHA512a618ea18a422e67c0123ddef79b44a7fe80c4d3a1a79b728dae7dfdaa9439f1bb36f8c8e6a9d3be3082d4c8ae49fc57ae8adf6621f978a40504aed70df7791a5
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Filesize
68KB
MD50e4a7e06790b055cd2ba00c41beaa2e0
SHA1945cb0eeab367b62af6cd054917eb1c5d8999cd0
SHA25654a926ae1b58e435cb4c29908cd219b983997d7ccc22e653a7d21fb23fec2eb8
SHA5121e760749104137c5e06196b773c02c086712b44d5bfa65c238cfcace988eae2d680795941a51a0a5dc767d707c03792a3650f299fd14e460602d2f9a675b5f41