Analysis
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max time kernel
146s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
07-06-2024 03:24
Static task
static1
Behavioral task
behavioral1
Sample
8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe
Resource
win10v2004-20240508-en
General
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Target
8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe
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Size
2.9MB
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MD5
b6051017ed03f7d9ffb08dfb4ce0d5f7
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SHA1
78cf4f8df8ce382681d7149b3d8710be2f21e210
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SHA256
8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422
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SHA512
79dd3d3f23023376f0d95c66318942ddcc5e6558ad69964f94b18df1e9270ebf405a6e1449bae5b9929c61613beefaceb5fd3815c19128a83c569f890ea88b95
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SSDEEP
49152:rtpSxptE1AKnCBMS4cdR/z4+UVi4e9Crn:r/4nE1dCmKxx4e9Cb
Malware Config
Extracted
stealc
Extracted
vidar
https://t.me/r8z0l
https://steamcommunity.com/profiles/76561199698764354
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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/4532-1-0x0000000004310000-0x0000000004476000-memory.dmp family_vidar_v7 behavioral2/memory/1100-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1100-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1100-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1100-15-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1100-16-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1100-33-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1100-34-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat472B.tmppid process 1100 kat472B.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:
8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exedescription pid process target process PID 4532 set thread context of 1100 4532 8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe kat472B.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat472B.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat472B.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat472B.tmppid process 1100 kat472B.tmp 1100 kat472B.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exedescription pid process target process PID 4532 wrote to memory of 1100 4532 8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe kat472B.tmp PID 4532 wrote to memory of 1100 4532 8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe kat472B.tmp PID 4532 wrote to memory of 1100 4532 8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe kat472B.tmp PID 4532 wrote to memory of 1100 4532 8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe kat472B.tmp PID 4532 wrote to memory of 1100 4532 8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe kat472B.tmp PID 4532 wrote to memory of 1100 4532 8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe kat472B.tmp PID 4532 wrote to memory of 1100 4532 8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe kat472B.tmp PID 4532 wrote to memory of 1100 4532 8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe kat472B.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe"C:\Users\Admin\AppData\Local\Temp\8d41ed1098d36b683b596721e46cc27f220ffd70aaa7d4b549971a98ae028422.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4532 -
C:\Users\Admin\AppData\Local\Temp\kat472B.tmpC:\Users\Admin\AppData\Local\Temp\kat472B.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1100
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f