Analysis
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max time kernel
90s -
max time network
123s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
25-05-2024 05:56
Static task
static1
Behavioral task
behavioral1
Sample
682c395c166309198308ad51aca1171859207d82b7389837a9593b939f4d9474.exe
Resource
win10v2004-20240508-en
General
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Target
682c395c166309198308ad51aca1171859207d82b7389837a9593b939f4d9474.exe
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Size
2.0MB
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MD5
608be16c194764b079e66159b1f93d90
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SHA1
0057ddf9fb661d9211f36f15e861a55515b68612
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SHA256
682c395c166309198308ad51aca1171859207d82b7389837a9593b939f4d9474
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SHA512
30daf0faa5079e769e95b09040e411272b9589325cc51ed07e9218d1ea302dfdba35bb574a35e02d42b5f5f191789783bfaaf2758502c6764d6467c39f805a9f
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SSDEEP
49152:s4K3x1vUiJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18itIuoITsdZ
Malware Config
Extracted
stealc
Extracted
vidar
https://steamcommunity.com/profiles/76561199689717899
https://t.me/copterwin
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral2/memory/2312-2-0x0000000004110000-0x0000000004259000-memory.dmp family_vidar_v7 behavioral2/memory/660-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/660-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/660-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/660-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/660-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/660-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/660-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat6B3D.tmppid process 660 kat6B3D.tmp -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 1 IoCs
Processes:
682c395c166309198308ad51aca1171859207d82b7389837a9593b939f4d9474.exedescription pid process target process PID 2312 set thread context of 660 2312 682c395c166309198308ad51aca1171859207d82b7389837a9593b939f4d9474.exe kat6B3D.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat6B3D.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat6B3D.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat6B3D.tmppid process 660 kat6B3D.tmp 660 kat6B3D.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
682c395c166309198308ad51aca1171859207d82b7389837a9593b939f4d9474.exedescription pid process target process PID 2312 wrote to memory of 660 2312 682c395c166309198308ad51aca1171859207d82b7389837a9593b939f4d9474.exe kat6B3D.tmp PID 2312 wrote to memory of 660 2312 682c395c166309198308ad51aca1171859207d82b7389837a9593b939f4d9474.exe kat6B3D.tmp PID 2312 wrote to memory of 660 2312 682c395c166309198308ad51aca1171859207d82b7389837a9593b939f4d9474.exe kat6B3D.tmp PID 2312 wrote to memory of 660 2312 682c395c166309198308ad51aca1171859207d82b7389837a9593b939f4d9474.exe kat6B3D.tmp PID 2312 wrote to memory of 660 2312 682c395c166309198308ad51aca1171859207d82b7389837a9593b939f4d9474.exe kat6B3D.tmp PID 2312 wrote to memory of 660 2312 682c395c166309198308ad51aca1171859207d82b7389837a9593b939f4d9474.exe kat6B3D.tmp PID 2312 wrote to memory of 660 2312 682c395c166309198308ad51aca1171859207d82b7389837a9593b939f4d9474.exe kat6B3D.tmp PID 2312 wrote to memory of 660 2312 682c395c166309198308ad51aca1171859207d82b7389837a9593b939f4d9474.exe kat6B3D.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\682c395c166309198308ad51aca1171859207d82b7389837a9593b939f4d9474.exe"C:\Users\Admin\AppData\Local\Temp\682c395c166309198308ad51aca1171859207d82b7389837a9593b939f4d9474.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat6B3D.tmpC:\Users\Admin\AppData\Local\Temp\kat6B3D.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\kat6B3D.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/660-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/660-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/660-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/660-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/660-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/660-22-0x000000001B910000-0x000000001BB6F000-memory.dmpFilesize
2.4MB
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memory/660-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/660-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2312-0-0x0000000002360000-0x0000000002361000-memory.dmpFilesize
4KB
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memory/2312-2-0x0000000004110000-0x0000000004259000-memory.dmpFilesize
1.3MB
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memory/2312-9-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB