Analysis
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max time kernel
90s -
max time network
128s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
30-06-2024 19:15
Static task
static1
Behavioral task
behavioral1
Sample
944c26d353d6b7edebacb361af7e33c4cb187f9f06306039a28fbfe2ff7d5ed7.exe
Resource
win10v2004-20240611-en
General
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Target
944c26d353d6b7edebacb361af7e33c4cb187f9f06306039a28fbfe2ff7d5ed7.exe
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Size
2.2MB
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MD5
7c2a66e79b126bc9dacc61cb6c02548c
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SHA1
54f5774666c83b8a0d7f06a2688c9a3c5fd3ed64
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SHA256
944c26d353d6b7edebacb361af7e33c4cb187f9f06306039a28fbfe2ff7d5ed7
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SHA512
b10bf2147cb459e4717326504c2a071c65418e4caa14ca1f86a669cb0b87e00db43b8e84e20886c73ac0603f4700ba7bca1c82c1c5427a2cde499861a6427dde
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SSDEEP
24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXrYU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MP721tuuIeNHYGY0LzjsJxK
Malware Config
Extracted
vidar
https://t.me/g067n
https://steamcommunity.com/profiles/76561199707802586
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral2/memory/628-1-0x00000000040A0000-0x00000000041B3000-memory.dmp family_vidar_v7 behavioral2/memory/1992-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1992-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1992-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1992-24-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1992-25-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1992-42-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1992-43-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat7D2F.tmppid process 1992 kat7D2F.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:
944c26d353d6b7edebacb361af7e33c4cb187f9f06306039a28fbfe2ff7d5ed7.exedescription pid process target process PID 628 set thread context of 1992 628 944c26d353d6b7edebacb361af7e33c4cb187f9f06306039a28fbfe2ff7d5ed7.exe kat7D2F.tmp -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat7D2F.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat7D2F.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat7D2F.tmp -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat7D2F.tmppid process 1992 kat7D2F.tmp 1992 kat7D2F.tmp 1992 kat7D2F.tmp 1992 kat7D2F.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
944c26d353d6b7edebacb361af7e33c4cb187f9f06306039a28fbfe2ff7d5ed7.exedescription pid process target process PID 628 wrote to memory of 1992 628 944c26d353d6b7edebacb361af7e33c4cb187f9f06306039a28fbfe2ff7d5ed7.exe kat7D2F.tmp PID 628 wrote to memory of 1992 628 944c26d353d6b7edebacb361af7e33c4cb187f9f06306039a28fbfe2ff7d5ed7.exe kat7D2F.tmp PID 628 wrote to memory of 1992 628 944c26d353d6b7edebacb361af7e33c4cb187f9f06306039a28fbfe2ff7d5ed7.exe kat7D2F.tmp PID 628 wrote to memory of 1992 628 944c26d353d6b7edebacb361af7e33c4cb187f9f06306039a28fbfe2ff7d5ed7.exe kat7D2F.tmp PID 628 wrote to memory of 1992 628 944c26d353d6b7edebacb361af7e33c4cb187f9f06306039a28fbfe2ff7d5ed7.exe kat7D2F.tmp PID 628 wrote to memory of 1992 628 944c26d353d6b7edebacb361af7e33c4cb187f9f06306039a28fbfe2ff7d5ed7.exe kat7D2F.tmp PID 628 wrote to memory of 1992 628 944c26d353d6b7edebacb361af7e33c4cb187f9f06306039a28fbfe2ff7d5ed7.exe kat7D2F.tmp PID 628 wrote to memory of 1992 628 944c26d353d6b7edebacb361af7e33c4cb187f9f06306039a28fbfe2ff7d5ed7.exe kat7D2F.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\944c26d353d6b7edebacb361af7e33c4cb187f9f06306039a28fbfe2ff7d5ed7.exe"C:\Users\Admin\AppData\Local\Temp\944c26d353d6b7edebacb361af7e33c4cb187f9f06306039a28fbfe2ff7d5ed7.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat7D2F.tmpC:\Users\Admin\AppData\Local\Temp\kat7D2F.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat7D2F.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/628-0-0x00000000023B0000-0x00000000023B1000-memory.dmpFilesize
4KB
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memory/628-1-0x00000000040A0000-0x00000000041B3000-memory.dmpFilesize
1.1MB
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memory/628-10-0x0000000000400000-0x0000000000641000-memory.dmpFilesize
2.3MB
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memory/1992-9-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1992-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1992-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1992-24-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1992-25-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1992-27-0x0000000022770000-0x00000000229CF000-memory.dmpFilesize
2.4MB
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memory/1992-42-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1992-43-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB