Analysis
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max time kernel
125s -
max time network
126s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
30-06-2024 07:57
Static task
static1
Behavioral task
behavioral1
Sample
5fc4ecdc8493f4c9940aa180414039de766acd608bc9713eaec76c377f40fd98.exe
Resource
win10v2004-20240508-en
General
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Target
5fc4ecdc8493f4c9940aa180414039de766acd608bc9713eaec76c377f40fd98.exe
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Size
2.2MB
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MD5
3fa9c2d7eabc6b3a61e5e03dcf0d91b4
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SHA1
14113d79c55c327c3d8c4b07a38385881b8adee4
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SHA256
5fc4ecdc8493f4c9940aa180414039de766acd608bc9713eaec76c377f40fd98
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SHA512
16c2ff654d9a602f0e12cfdeba76137fbd8f052c99a5664695e77e8c03773743b0346cccc746efe993c645f9964ded352eaf2228bb1feae1047f81512c3fbcd4
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SSDEEP
49152:qpjNvr9ySAOmw4VHHO+SASagXkJr4MDkUwm:qpjNp7p4VHH8n5A
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/4708-1-0x0000000003FD0000-0x00000000040E0000-memory.dmp family_vidar_v7 behavioral1/memory/1300-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1300-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1300-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1300-22-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1300-23-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1300-40-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1300-41-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
katF731.tmppid process 1300 katF731.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:
5fc4ecdc8493f4c9940aa180414039de766acd608bc9713eaec76c377f40fd98.exedescription pid process target process PID 4708 set thread context of 1300 4708 5fc4ecdc8493f4c9940aa180414039de766acd608bc9713eaec76c377f40fd98.exe katF731.tmp -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
katF731.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 katF731.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString katF731.tmp -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
katF731.tmppid process 1300 katF731.tmp 1300 katF731.tmp 1300 katF731.tmp 1300 katF731.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
5fc4ecdc8493f4c9940aa180414039de766acd608bc9713eaec76c377f40fd98.exedescription pid process target process PID 4708 wrote to memory of 1300 4708 5fc4ecdc8493f4c9940aa180414039de766acd608bc9713eaec76c377f40fd98.exe katF731.tmp PID 4708 wrote to memory of 1300 4708 5fc4ecdc8493f4c9940aa180414039de766acd608bc9713eaec76c377f40fd98.exe katF731.tmp PID 4708 wrote to memory of 1300 4708 5fc4ecdc8493f4c9940aa180414039de766acd608bc9713eaec76c377f40fd98.exe katF731.tmp PID 4708 wrote to memory of 1300 4708 5fc4ecdc8493f4c9940aa180414039de766acd608bc9713eaec76c377f40fd98.exe katF731.tmp PID 4708 wrote to memory of 1300 4708 5fc4ecdc8493f4c9940aa180414039de766acd608bc9713eaec76c377f40fd98.exe katF731.tmp PID 4708 wrote to memory of 1300 4708 5fc4ecdc8493f4c9940aa180414039de766acd608bc9713eaec76c377f40fd98.exe katF731.tmp PID 4708 wrote to memory of 1300 4708 5fc4ecdc8493f4c9940aa180414039de766acd608bc9713eaec76c377f40fd98.exe katF731.tmp PID 4708 wrote to memory of 1300 4708 5fc4ecdc8493f4c9940aa180414039de766acd608bc9713eaec76c377f40fd98.exe katF731.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\5fc4ecdc8493f4c9940aa180414039de766acd608bc9713eaec76c377f40fd98.exe"C:\Users\Admin\AppData\Local\Temp\5fc4ecdc8493f4c9940aa180414039de766acd608bc9713eaec76c377f40fd98.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\katF731.tmpC:\Users\Admin\AppData\Local\Temp\katF731.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4328,i,5047420736443372512,9747851268033796534,262144 --variations-seed-version --mojo-platform-channel-handle=4352 /prefetch:81⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\katF731.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1300-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1300-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1300-10-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1300-22-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1300-23-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1300-25-0x0000000022860000-0x0000000022ABF000-memory.dmpFilesize
2.4MB
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memory/1300-40-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1300-41-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4708-0-0x00000000022A0000-0x00000000022A1000-memory.dmpFilesize
4KB
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memory/4708-1-0x0000000003FD0000-0x00000000040E0000-memory.dmpFilesize
1.1MB
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memory/4708-9-0x0000000000400000-0x0000000000635000-memory.dmpFilesize
2.2MB