Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
03-06-2024 10:03
Static task
static1
Behavioral task
behavioral1
Sample
a7673fcf3719bd3ceffb61f5d81e5b55ad4d271b7942d9a26598ec85e02024b0.exe
Resource
win10v2004-20240426-en
General
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Target
a7673fcf3719bd3ceffb61f5d81e5b55ad4d271b7942d9a26598ec85e02024b0.exe
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Size
1.8MB
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MD5
83af3d75d0648a3cee7efa84b052d8c6
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SHA1
d5709548a33751b7b1496e40bd97eef3fd5cd51e
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SHA256
a7673fcf3719bd3ceffb61f5d81e5b55ad4d271b7942d9a26598ec85e02024b0
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SHA512
9088090e1ce3603ebcc6dd9c6a79c7cf74afa087706f894888266ebad524267a7dd539d2cf5717691bb33e41360fe53368757dc48a3d9debe54c64e6d05043e5
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SSDEEP
24576:W7YfUB7F1931tb7YaOV+rEfv0xwT3zxNOt4XigDSCuptNEynEsqqfD:W75B7FDFtb7Ya8aesY3Ot4N7G/
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 behavioral1/memory/1428-2-0x0000000003C10000-0x0000000003D5C000-memory.dmp family_vidar_v7 behavioral1/memory/3772-8-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/3772-4-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/3772-10-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/3772-13-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/3772-14-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/3772-31-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral1/memory/3772-32-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat4D35.tmppid process 3772 kat4D35.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:
a7673fcf3719bd3ceffb61f5d81e5b55ad4d271b7942d9a26598ec85e02024b0.exedescription pid process target process PID 1428 set thread context of 3772 1428 a7673fcf3719bd3ceffb61f5d81e5b55ad4d271b7942d9a26598ec85e02024b0.exe kat4D35.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat4D35.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4D35.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat4D35.tmppid process 3772 kat4D35.tmp 3772 kat4D35.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
a7673fcf3719bd3ceffb61f5d81e5b55ad4d271b7942d9a26598ec85e02024b0.exedescription pid process target process PID 1428 wrote to memory of 3772 1428 a7673fcf3719bd3ceffb61f5d81e5b55ad4d271b7942d9a26598ec85e02024b0.exe kat4D35.tmp PID 1428 wrote to memory of 3772 1428 a7673fcf3719bd3ceffb61f5d81e5b55ad4d271b7942d9a26598ec85e02024b0.exe kat4D35.tmp PID 1428 wrote to memory of 3772 1428 a7673fcf3719bd3ceffb61f5d81e5b55ad4d271b7942d9a26598ec85e02024b0.exe kat4D35.tmp PID 1428 wrote to memory of 3772 1428 a7673fcf3719bd3ceffb61f5d81e5b55ad4d271b7942d9a26598ec85e02024b0.exe kat4D35.tmp PID 1428 wrote to memory of 3772 1428 a7673fcf3719bd3ceffb61f5d81e5b55ad4d271b7942d9a26598ec85e02024b0.exe kat4D35.tmp PID 1428 wrote to memory of 3772 1428 a7673fcf3719bd3ceffb61f5d81e5b55ad4d271b7942d9a26598ec85e02024b0.exe kat4D35.tmp PID 1428 wrote to memory of 3772 1428 a7673fcf3719bd3ceffb61f5d81e5b55ad4d271b7942d9a26598ec85e02024b0.exe kat4D35.tmp PID 1428 wrote to memory of 3772 1428 a7673fcf3719bd3ceffb61f5d81e5b55ad4d271b7942d9a26598ec85e02024b0.exe kat4D35.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\a7673fcf3719bd3ceffb61f5d81e5b55ad4d271b7942d9a26598ec85e02024b0.exe"C:\Users\Admin\AppData\Local\Temp\a7673fcf3719bd3ceffb61f5d81e5b55ad4d271b7942d9a26598ec85e02024b0.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1428 -
C:\Users\Admin\AppData\Local\Temp\kat4D35.tmpC:\Users\Admin\AppData\Local\Temp\kat4D35.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3772
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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