Analysis
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max time kernel
91s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
29-06-2024 10:16
Static task
static1
Behavioral task
behavioral1
Sample
f8f975ad216b4fe6666a98b6aac29ffbf3b730c73e6c30b7d156536255e2ac1e.exe
Resource
win10v2004-20240508-en
General
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Target
f8f975ad216b4fe6666a98b6aac29ffbf3b730c73e6c30b7d156536255e2ac1e.exe
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Size
2.2MB
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MD5
7dc8c1726c810607aa3fb71cf1f85b20
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SHA1
05e5292ad6f419b7994d66b662c5a7cdd010b2d5
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SHA256
f8f975ad216b4fe6666a98b6aac29ffbf3b730c73e6c30b7d156536255e2ac1e
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SHA512
79b0125402bbbf075cb22146d92bff47e3f8e1b40f37ad737574e76f68efa9c367c6081febedc1a7659b70c19da618737619056e1a3640cf1ce421bf9b84bf30
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SSDEEP
49152:qpjNvr9ySAOmw4dHHO+SASagXkJr4MDkUwm:qpjNp7p4dHH8n5A
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 behavioral1/memory/2016-1-0x0000000004050000-0x0000000004160000-memory.dmp family_vidar_v7 behavioral1/memory/2872-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2872-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2872-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2872-22-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2872-23-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2872-40-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2872-41-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat4882.tmppid process 2872 kat4882.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:
f8f975ad216b4fe6666a98b6aac29ffbf3b730c73e6c30b7d156536255e2ac1e.exedescription pid process target process PID 2016 set thread context of 2872 2016 f8f975ad216b4fe6666a98b6aac29ffbf3b730c73e6c30b7d156536255e2ac1e.exe kat4882.tmp -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat4882.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat4882.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4882.tmp -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat4882.tmppid process 2872 kat4882.tmp 2872 kat4882.tmp 2872 kat4882.tmp 2872 kat4882.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
f8f975ad216b4fe6666a98b6aac29ffbf3b730c73e6c30b7d156536255e2ac1e.exedescription pid process target process PID 2016 wrote to memory of 2872 2016 f8f975ad216b4fe6666a98b6aac29ffbf3b730c73e6c30b7d156536255e2ac1e.exe kat4882.tmp PID 2016 wrote to memory of 2872 2016 f8f975ad216b4fe6666a98b6aac29ffbf3b730c73e6c30b7d156536255e2ac1e.exe kat4882.tmp PID 2016 wrote to memory of 2872 2016 f8f975ad216b4fe6666a98b6aac29ffbf3b730c73e6c30b7d156536255e2ac1e.exe kat4882.tmp PID 2016 wrote to memory of 2872 2016 f8f975ad216b4fe6666a98b6aac29ffbf3b730c73e6c30b7d156536255e2ac1e.exe kat4882.tmp PID 2016 wrote to memory of 2872 2016 f8f975ad216b4fe6666a98b6aac29ffbf3b730c73e6c30b7d156536255e2ac1e.exe kat4882.tmp PID 2016 wrote to memory of 2872 2016 f8f975ad216b4fe6666a98b6aac29ffbf3b730c73e6c30b7d156536255e2ac1e.exe kat4882.tmp PID 2016 wrote to memory of 2872 2016 f8f975ad216b4fe6666a98b6aac29ffbf3b730c73e6c30b7d156536255e2ac1e.exe kat4882.tmp PID 2016 wrote to memory of 2872 2016 f8f975ad216b4fe6666a98b6aac29ffbf3b730c73e6c30b7d156536255e2ac1e.exe kat4882.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\f8f975ad216b4fe6666a98b6aac29ffbf3b730c73e6c30b7d156536255e2ac1e.exe"C:\Users\Admin\AppData\Local\Temp\f8f975ad216b4fe6666a98b6aac29ffbf3b730c73e6c30b7d156536255e2ac1e.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2016 -
C:\Users\Admin\AppData\Local\Temp\kat4882.tmpC:\Users\Admin\AppData\Local\Temp\kat4882.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2872
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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