Analysis
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max time kernel
75s -
max time network
189s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
07-06-2024 01:08
Static task
static1
Behavioral task
behavioral1
Sample
b8f6af49f1b7231391bade58f10645f6569aae7fbcb0c25afa29d50803cc868d.exe
Resource
win7-20240221-en
General
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Target
b8f6af49f1b7231391bade58f10645f6569aae7fbcb0c25afa29d50803cc868d.exe
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Size
2.4MB
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MD5
6d9df364892d88badeb84fd95d5dc5a1
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SHA1
f719e48bea82d2db4ba04a027e18e2945339eb1d
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SHA256
b8f6af49f1b7231391bade58f10645f6569aae7fbcb0c25afa29d50803cc868d
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SHA512
6175ad637569d57728a1cb15182c6970b8274ed27fd9c8ced2d5364e25075d1df223e46f94fb917a51156be18f80ae6eff37245781193fafca343b940f1cfe5e
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SSDEEP
49152:wQc81KnB/a/hNT/dRYa8aesY3Ot4N7G/:wDta/hNT/dRn0etD/
Malware Config
Extracted
stealc
Extracted
vidar
https://t.me/ta904ek
https://steamcommunity.com/profiles/76561199695752269
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral2/memory/4176-10-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/4176-8-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/4176-4-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/2908-1-0x0000000003F50000-0x000000000409C000-memory.dmp family_vidar_v7 behavioral2/memory/4176-16-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/4176-17-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/4176-34-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/4176-35-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat78E9.tmppid process 4176 kat78E9.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:
b8f6af49f1b7231391bade58f10645f6569aae7fbcb0c25afa29d50803cc868d.exedescription pid process target process PID 2908 set thread context of 4176 2908 b8f6af49f1b7231391bade58f10645f6569aae7fbcb0c25afa29d50803cc868d.exe kat78E9.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat78E9.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat78E9.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat78E9.tmppid process 4176 kat78E9.tmp 4176 kat78E9.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
b8f6af49f1b7231391bade58f10645f6569aae7fbcb0c25afa29d50803cc868d.exedescription pid process target process PID 2908 wrote to memory of 4176 2908 b8f6af49f1b7231391bade58f10645f6569aae7fbcb0c25afa29d50803cc868d.exe kat78E9.tmp PID 2908 wrote to memory of 4176 2908 b8f6af49f1b7231391bade58f10645f6569aae7fbcb0c25afa29d50803cc868d.exe kat78E9.tmp PID 2908 wrote to memory of 4176 2908 b8f6af49f1b7231391bade58f10645f6569aae7fbcb0c25afa29d50803cc868d.exe kat78E9.tmp PID 2908 wrote to memory of 4176 2908 b8f6af49f1b7231391bade58f10645f6569aae7fbcb0c25afa29d50803cc868d.exe kat78E9.tmp PID 2908 wrote to memory of 4176 2908 b8f6af49f1b7231391bade58f10645f6569aae7fbcb0c25afa29d50803cc868d.exe kat78E9.tmp PID 2908 wrote to memory of 4176 2908 b8f6af49f1b7231391bade58f10645f6569aae7fbcb0c25afa29d50803cc868d.exe kat78E9.tmp PID 2908 wrote to memory of 4176 2908 b8f6af49f1b7231391bade58f10645f6569aae7fbcb0c25afa29d50803cc868d.exe kat78E9.tmp PID 2908 wrote to memory of 4176 2908 b8f6af49f1b7231391bade58f10645f6569aae7fbcb0c25afa29d50803cc868d.exe kat78E9.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\b8f6af49f1b7231391bade58f10645f6569aae7fbcb0c25afa29d50803cc868d.exe"C:\Users\Admin\AppData\Local\Temp\b8f6af49f1b7231391bade58f10645f6569aae7fbcb0c25afa29d50803cc868d.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2908 -
C:\Users\Admin\AppData\Local\Temp\kat78E9.tmpC:\Users\Admin\AppData\Local\Temp\kat78E9.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4176
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f