Analysis
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max time kernel
146s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20240611-en -
resource tags
arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system -
submitted
30-06-2024 07:53
Static task
static1
Behavioral task
behavioral1
Sample
6636f60fbbac1eb2e4983cbbd921cbe9b64d66071a735a7fe843aa93d7948bcb.exe
Resource
win10v2004-20240508-en
General
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Target
6636f60fbbac1eb2e4983cbbd921cbe9b64d66071a735a7fe843aa93d7948bcb.exe
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Size
2.2MB
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MD5
25693670a7f36d30aeb7996337bb94c3
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SHA1
1886d3e111cf8529871f73a6b0bdb10df96f5e21
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SHA256
6636f60fbbac1eb2e4983cbbd921cbe9b64d66071a735a7fe843aa93d7948bcb
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SHA512
3388cdce9d46bb25d06fe046b69914c73f484961177bd7babc0171b5f7d1ad94405a014aee06a9515f451853dbea0abccf707862c6495c4326502932a2572d9a
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SSDEEP
49152:qpjNvr9ySAOmw4lHHO+SASagXkJr4MDkUwm:qpjNp7p4lHH8n5A
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/1464-1-0x0000000002B50000-0x0000000002C60000-memory.dmp family_vidar_v7 behavioral2/memory/1088-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1088-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1088-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1088-24-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1088-25-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1088-35-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1088-36-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat7C35.tmppid process 1088 kat7C35.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:
6636f60fbbac1eb2e4983cbbd921cbe9b64d66071a735a7fe843aa93d7948bcb.exedescription pid process target process PID 1464 set thread context of 1088 1464 6636f60fbbac1eb2e4983cbbd921cbe9b64d66071a735a7fe843aa93d7948bcb.exe kat7C35.tmp -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat7C35.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat7C35.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat7C35.tmp -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat7C35.tmppid process 1088 kat7C35.tmp 1088 kat7C35.tmp 1088 kat7C35.tmp 1088 kat7C35.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
6636f60fbbac1eb2e4983cbbd921cbe9b64d66071a735a7fe843aa93d7948bcb.exedescription pid process target process PID 1464 wrote to memory of 1088 1464 6636f60fbbac1eb2e4983cbbd921cbe9b64d66071a735a7fe843aa93d7948bcb.exe kat7C35.tmp PID 1464 wrote to memory of 1088 1464 6636f60fbbac1eb2e4983cbbd921cbe9b64d66071a735a7fe843aa93d7948bcb.exe kat7C35.tmp PID 1464 wrote to memory of 1088 1464 6636f60fbbac1eb2e4983cbbd921cbe9b64d66071a735a7fe843aa93d7948bcb.exe kat7C35.tmp PID 1464 wrote to memory of 1088 1464 6636f60fbbac1eb2e4983cbbd921cbe9b64d66071a735a7fe843aa93d7948bcb.exe kat7C35.tmp PID 1464 wrote to memory of 1088 1464 6636f60fbbac1eb2e4983cbbd921cbe9b64d66071a735a7fe843aa93d7948bcb.exe kat7C35.tmp PID 1464 wrote to memory of 1088 1464 6636f60fbbac1eb2e4983cbbd921cbe9b64d66071a735a7fe843aa93d7948bcb.exe kat7C35.tmp PID 1464 wrote to memory of 1088 1464 6636f60fbbac1eb2e4983cbbd921cbe9b64d66071a735a7fe843aa93d7948bcb.exe kat7C35.tmp PID 1464 wrote to memory of 1088 1464 6636f60fbbac1eb2e4983cbbd921cbe9b64d66071a735a7fe843aa93d7948bcb.exe kat7C35.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\6636f60fbbac1eb2e4983cbbd921cbe9b64d66071a735a7fe843aa93d7948bcb.exe"C:\Users\Admin\AppData\Local\Temp\6636f60fbbac1eb2e4983cbbd921cbe9b64d66071a735a7fe843aa93d7948bcb.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat7C35.tmpC:\Users\Admin\AppData\Local\Temp\kat7C35.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\kat7C35.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1088-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1088-9-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1088-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1088-24-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1088-25-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1088-28-0x000000002D260000-0x000000002D4BF000-memory.dmpFilesize
2.4MB
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memory/1088-35-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1088-36-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1464-0-0x00000000009D0000-0x00000000009D1000-memory.dmpFilesize
4KB
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memory/1464-1-0x0000000002B50000-0x0000000002C60000-memory.dmpFilesize
1.1MB
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memory/1464-10-0x0000000000400000-0x0000000000635000-memory.dmpFilesize
2.2MB