Analysis
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max time kernel
93s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
27-05-2024 02:14
Static task
static1
Behavioral task
behavioral1
Sample
669bf5c2ac07ee03481ce14ec01ec34deccb7811f022101c08d23cb6e7590764.exe
Resource
win10v2004-20240426-en
General
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Target
669bf5c2ac07ee03481ce14ec01ec34deccb7811f022101c08d23cb6e7590764.exe
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Size
2.0MB
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MD5
60723429452f83035a5436d3c57c4f26
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SHA1
97572400c6eabe8130dfa621902723122691d9a5
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SHA256
669bf5c2ac07ee03481ce14ec01ec34deccb7811f022101c08d23cb6e7590764
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SHA512
e06e0232f861b4c38de69c8301a573d38d5c1b44b2d92e59c6898d88be9d2e9ded453256e6cf6354583e7afc74c13ad66c6e3ad7893b4c2b26f6a48188087e12
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SSDEEP
49152:OePpQE9JtTF+TxMoxc1TU+j+dAzGwlrh:OePpQE9tIuoITsdZ
Malware Config
Extracted
stealc
Extracted
vidar
https://steamcommunity.com/profiles/76561199689717899
https://t.me/copterwin
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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/2664-1-0x00000000041C0000-0x0000000004309000-memory.dmp family_vidar_v7 behavioral1/memory/3448-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3448-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3448-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3448-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3448-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3448-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3448-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat3AF6.tmppid process 3448 kat3AF6.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:
669bf5c2ac07ee03481ce14ec01ec34deccb7811f022101c08d23cb6e7590764.exedescription pid process target process PID 2664 set thread context of 3448 2664 669bf5c2ac07ee03481ce14ec01ec34deccb7811f022101c08d23cb6e7590764.exe kat3AF6.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat3AF6.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat3AF6.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat3AF6.tmppid process 3448 kat3AF6.tmp 3448 kat3AF6.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
669bf5c2ac07ee03481ce14ec01ec34deccb7811f022101c08d23cb6e7590764.exedescription pid process target process PID 2664 wrote to memory of 3448 2664 669bf5c2ac07ee03481ce14ec01ec34deccb7811f022101c08d23cb6e7590764.exe kat3AF6.tmp PID 2664 wrote to memory of 3448 2664 669bf5c2ac07ee03481ce14ec01ec34deccb7811f022101c08d23cb6e7590764.exe kat3AF6.tmp PID 2664 wrote to memory of 3448 2664 669bf5c2ac07ee03481ce14ec01ec34deccb7811f022101c08d23cb6e7590764.exe kat3AF6.tmp PID 2664 wrote to memory of 3448 2664 669bf5c2ac07ee03481ce14ec01ec34deccb7811f022101c08d23cb6e7590764.exe kat3AF6.tmp PID 2664 wrote to memory of 3448 2664 669bf5c2ac07ee03481ce14ec01ec34deccb7811f022101c08d23cb6e7590764.exe kat3AF6.tmp PID 2664 wrote to memory of 3448 2664 669bf5c2ac07ee03481ce14ec01ec34deccb7811f022101c08d23cb6e7590764.exe kat3AF6.tmp PID 2664 wrote to memory of 3448 2664 669bf5c2ac07ee03481ce14ec01ec34deccb7811f022101c08d23cb6e7590764.exe kat3AF6.tmp PID 2664 wrote to memory of 3448 2664 669bf5c2ac07ee03481ce14ec01ec34deccb7811f022101c08d23cb6e7590764.exe kat3AF6.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\669bf5c2ac07ee03481ce14ec01ec34deccb7811f022101c08d23cb6e7590764.exe"C:\Users\Admin\AppData\Local\Temp\669bf5c2ac07ee03481ce14ec01ec34deccb7811f022101c08d23cb6e7590764.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2664 -
C:\Users\Admin\AppData\Local\Temp\kat3AF6.tmpC:\Users\Admin\AppData\Local\Temp\kat3AF6.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3448
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat3AF6.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2664-0-0x00000000009F0000-0x00000000009F1000-memory.dmpFilesize
4KB
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memory/2664-1-0x00000000041C0000-0x0000000004309000-memory.dmpFilesize
1.3MB
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memory/2664-9-0x0000000000400000-0x0000000000612000-memory.dmpFilesize
2.1MB
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memory/3448-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3448-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3448-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3448-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3448-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3448-20-0x000000001DC10000-0x000000001DE6F000-memory.dmpFilesize
2.4MB
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memory/3448-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3448-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB