Analysis
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max time kernel
92s -
max time network
127s -
platform
windows11-21h2_x64 -
resource
win11-20240611-en -
resource tags
arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system -
submitted
29-06-2024 00:35
Static task
static1
Behavioral task
behavioral1
Sample
c5ed6a25605cff93edf4034838aa260675ba010d954559951768ae0147739231.exe
Resource
win10v2004-20240508-en
General
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Target
c5ed6a25605cff93edf4034838aa260675ba010d954559951768ae0147739231.exe
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Size
2.2MB
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MD5
a5c89870b75b372d645b1648abf6f844
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SHA1
56b439e256f99c71166e874a7e517f4f94ea155e
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SHA256
c5ed6a25605cff93edf4034838aa260675ba010d954559951768ae0147739231
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SHA512
1b55f06987a961b8ea42617bde5ff30a7eb44420d6667197781df5205b603c3fa01d8de7d097512e8e7f046e7cc916cca0116070f2301b89a6baf4230212498e
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SSDEEP
49152:qpjNvr9ySAOmw4pHHO+SASagXkJr4MDkUwm:qpjNp7p4pHH8n5A
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 16 IoCs
Processes:
resource yara_rule behavioral2/memory/4428-2-0x0000000002A60000-0x0000000002B70000-memory.dmp family_vidar_v7 behavioral2/memory/2364-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2364-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2364-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2364-24-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2364-25-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2364-35-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2364-36-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2364-44-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2364-45-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2364-61-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2364-62-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2364-73-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2364-74-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2364-75-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2364-76-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat470B.tmppid process 2364 kat470B.tmp -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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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:
c5ed6a25605cff93edf4034838aa260675ba010d954559951768ae0147739231.exedescription pid process target process PID 4428 set thread context of 2364 4428 c5ed6a25605cff93edf4034838aa260675ba010d954559951768ae0147739231.exe kat470B.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat470B.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat470B.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat470B.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 3140 timeout.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
kat470B.tmppid process 2364 kat470B.tmp 2364 kat470B.tmp 2364 kat470B.tmp 2364 kat470B.tmp 2364 kat470B.tmp 2364 kat470B.tmp 2364 kat470B.tmp 2364 kat470B.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
c5ed6a25605cff93edf4034838aa260675ba010d954559951768ae0147739231.exekat470B.tmpcmd.exedescription pid process target process PID 4428 wrote to memory of 2364 4428 c5ed6a25605cff93edf4034838aa260675ba010d954559951768ae0147739231.exe kat470B.tmp PID 4428 wrote to memory of 2364 4428 c5ed6a25605cff93edf4034838aa260675ba010d954559951768ae0147739231.exe kat470B.tmp PID 4428 wrote to memory of 2364 4428 c5ed6a25605cff93edf4034838aa260675ba010d954559951768ae0147739231.exe kat470B.tmp PID 4428 wrote to memory of 2364 4428 c5ed6a25605cff93edf4034838aa260675ba010d954559951768ae0147739231.exe kat470B.tmp PID 4428 wrote to memory of 2364 4428 c5ed6a25605cff93edf4034838aa260675ba010d954559951768ae0147739231.exe kat470B.tmp PID 4428 wrote to memory of 2364 4428 c5ed6a25605cff93edf4034838aa260675ba010d954559951768ae0147739231.exe kat470B.tmp PID 4428 wrote to memory of 2364 4428 c5ed6a25605cff93edf4034838aa260675ba010d954559951768ae0147739231.exe kat470B.tmp PID 4428 wrote to memory of 2364 4428 c5ed6a25605cff93edf4034838aa260675ba010d954559951768ae0147739231.exe kat470B.tmp PID 2364 wrote to memory of 2848 2364 kat470B.tmp cmd.exe PID 2364 wrote to memory of 2848 2364 kat470B.tmp cmd.exe PID 2364 wrote to memory of 2848 2364 kat470B.tmp cmd.exe PID 2848 wrote to memory of 3140 2848 cmd.exe timeout.exe PID 2848 wrote to memory of 3140 2848 cmd.exe timeout.exe PID 2848 wrote to memory of 3140 2848 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c5ed6a25605cff93edf4034838aa260675ba010d954559951768ae0147739231.exe"C:\Users\Admin\AppData\Local\Temp\c5ed6a25605cff93edf4034838aa260675ba010d954559951768ae0147739231.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4428 -
C:\Users\Admin\AppData\Local\Temp\kat470B.tmpC:\Users\Admin\AppData\Local\Temp\kat470B.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2364 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat470B.tmp" & rd /s /q "C:\ProgramData\FCGIJDBAFCBA" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:2848 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:3140
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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