Analysis
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max time kernel
105s -
max time network
125s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
03-06-2024 09:04
Static task
static1
Behavioral task
behavioral1
Sample
f475183e91015042fe85c44ea580c31b97dc8e79dc9a53e25fc6f4fd8a7cbb61.exe
Resource
win10v2004-20240426-en
General
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Target
f475183e91015042fe85c44ea580c31b97dc8e79dc9a53e25fc6f4fd8a7cbb61.exe
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Size
1.8MB
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MD5
5f5a1f6d9a62142e288f4eebfea2ec67
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SHA1
8db742358812a048e73e6ed17f7be8b48a1dcf6d
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SHA256
f475183e91015042fe85c44ea580c31b97dc8e79dc9a53e25fc6f4fd8a7cbb61
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SHA512
3596a844d3d2d17fbd9fffbc2bb38fc23cb42d73fc10e4afba9a009902e6aedd6ed132896ad834e46bcfda9cb09640c50f1dc16078e23a057fb7b04cc9abd93b
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SSDEEP
24576:W7YfUB7F1931tbxYaOV+rEfv0xwT3zxNOt4XigDSCuptNEynEsqqfD:W75B7FDFtbxYa8aesY3Ot4N7G/
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/4176-1-0x0000000002AF0000-0x0000000002C3C000-memory.dmp family_vidar_v7 behavioral2/memory/1536-9-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/1536-8-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/1536-4-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/1536-22-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/1536-23-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/1536-40-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 behavioral2/memory/1536-41-0x0000000000400000-0x0000000000649000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat9451.tmppid process 1536 kat9451.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:
f475183e91015042fe85c44ea580c31b97dc8e79dc9a53e25fc6f4fd8a7cbb61.exedescription pid process target process PID 4176 set thread context of 1536 4176 f475183e91015042fe85c44ea580c31b97dc8e79dc9a53e25fc6f4fd8a7cbb61.exe kat9451.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat9451.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat9451.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat9451.tmppid process 1536 kat9451.tmp 1536 kat9451.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
f475183e91015042fe85c44ea580c31b97dc8e79dc9a53e25fc6f4fd8a7cbb61.exedescription pid process target process PID 4176 wrote to memory of 1536 4176 f475183e91015042fe85c44ea580c31b97dc8e79dc9a53e25fc6f4fd8a7cbb61.exe kat9451.tmp PID 4176 wrote to memory of 1536 4176 f475183e91015042fe85c44ea580c31b97dc8e79dc9a53e25fc6f4fd8a7cbb61.exe kat9451.tmp PID 4176 wrote to memory of 1536 4176 f475183e91015042fe85c44ea580c31b97dc8e79dc9a53e25fc6f4fd8a7cbb61.exe kat9451.tmp PID 4176 wrote to memory of 1536 4176 f475183e91015042fe85c44ea580c31b97dc8e79dc9a53e25fc6f4fd8a7cbb61.exe kat9451.tmp PID 4176 wrote to memory of 1536 4176 f475183e91015042fe85c44ea580c31b97dc8e79dc9a53e25fc6f4fd8a7cbb61.exe kat9451.tmp PID 4176 wrote to memory of 1536 4176 f475183e91015042fe85c44ea580c31b97dc8e79dc9a53e25fc6f4fd8a7cbb61.exe kat9451.tmp PID 4176 wrote to memory of 1536 4176 f475183e91015042fe85c44ea580c31b97dc8e79dc9a53e25fc6f4fd8a7cbb61.exe kat9451.tmp PID 4176 wrote to memory of 1536 4176 f475183e91015042fe85c44ea580c31b97dc8e79dc9a53e25fc6f4fd8a7cbb61.exe kat9451.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\f475183e91015042fe85c44ea580c31b97dc8e79dc9a53e25fc6f4fd8a7cbb61.exe"C:\Users\Admin\AppData\Local\Temp\f475183e91015042fe85c44ea580c31b97dc8e79dc9a53e25fc6f4fd8a7cbb61.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4176 -
C:\Users\Admin\AppData\Local\Temp\kat9451.tmpC:\Users\Admin\AppData\Local\Temp\kat9451.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1536
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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