Analysis
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max time kernel
146s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
29-06-2024 06:25
Static task
static1
Behavioral task
behavioral1
Sample
ec90a008ff9242e175d565ce1620c6bfd1e453835ea7164716e5edbad2981588.exe
Resource
win10v2004-20240508-en
General
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Target
ec90a008ff9242e175d565ce1620c6bfd1e453835ea7164716e5edbad2981588.exe
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Size
2.2MB
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MD5
b21e5d6867dd9872dc4ab557ad0199f5
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SHA1
0bd8129a5405ab8c19523a8e5cca52f0ea9d5716
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SHA256
ec90a008ff9242e175d565ce1620c6bfd1e453835ea7164716e5edbad2981588
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SHA512
6cc806489aa17d0de3accff08544d7067299beeca5c4757766f5f4a46c88d75dc1dce40ec449827fbc520ddefa7b615e3d9aaf2790b81a0cc8c9a51836faedb0
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SSDEEP
49152:qpjNvr9ySAOmw4ZHHO+SASagXkJr4MDkUwm:qpjNp7p4ZHH8n5A
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/1688-2-0x0000000004080000-0x0000000004190000-memory.dmp family_vidar_v7 behavioral2/memory/3164-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3164-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3164-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3164-24-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3164-25-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3164-42-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3164-43-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat9A4C.tmppid process 3164 kat9A4C.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:
ec90a008ff9242e175d565ce1620c6bfd1e453835ea7164716e5edbad2981588.exedescription pid process target process PID 1688 set thread context of 3164 1688 ec90a008ff9242e175d565ce1620c6bfd1e453835ea7164716e5edbad2981588.exe kat9A4C.tmp -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat9A4C.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat9A4C.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat9A4C.tmp -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat9A4C.tmppid process 3164 kat9A4C.tmp 3164 kat9A4C.tmp 3164 kat9A4C.tmp 3164 kat9A4C.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
ec90a008ff9242e175d565ce1620c6bfd1e453835ea7164716e5edbad2981588.exedescription pid process target process PID 1688 wrote to memory of 3164 1688 ec90a008ff9242e175d565ce1620c6bfd1e453835ea7164716e5edbad2981588.exe kat9A4C.tmp PID 1688 wrote to memory of 3164 1688 ec90a008ff9242e175d565ce1620c6bfd1e453835ea7164716e5edbad2981588.exe kat9A4C.tmp PID 1688 wrote to memory of 3164 1688 ec90a008ff9242e175d565ce1620c6bfd1e453835ea7164716e5edbad2981588.exe kat9A4C.tmp PID 1688 wrote to memory of 3164 1688 ec90a008ff9242e175d565ce1620c6bfd1e453835ea7164716e5edbad2981588.exe kat9A4C.tmp PID 1688 wrote to memory of 3164 1688 ec90a008ff9242e175d565ce1620c6bfd1e453835ea7164716e5edbad2981588.exe kat9A4C.tmp PID 1688 wrote to memory of 3164 1688 ec90a008ff9242e175d565ce1620c6bfd1e453835ea7164716e5edbad2981588.exe kat9A4C.tmp PID 1688 wrote to memory of 3164 1688 ec90a008ff9242e175d565ce1620c6bfd1e453835ea7164716e5edbad2981588.exe kat9A4C.tmp PID 1688 wrote to memory of 3164 1688 ec90a008ff9242e175d565ce1620c6bfd1e453835ea7164716e5edbad2981588.exe kat9A4C.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\ec90a008ff9242e175d565ce1620c6bfd1e453835ea7164716e5edbad2981588.exe"C:\Users\Admin\AppData\Local\Temp\ec90a008ff9242e175d565ce1620c6bfd1e453835ea7164716e5edbad2981588.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1688 -
C:\Users\Admin\AppData\Local\Temp\kat9A4C.tmpC:\Users\Admin\AppData\Local\Temp\kat9A4C.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3164
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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