Analysis
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max time kernel
132s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
29-06-2024 01:44
Static task
static1
Behavioral task
behavioral1
Sample
927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe
Resource
win10v2004-20240611-en
General
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Target
927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe
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Size
2.2MB
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MD5
b1d49aea921a8b939ba06ecc5af3e7b6
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SHA1
2bbc01f39f3923394e8cbb5604787fa31ae4d635
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SHA256
927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c
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SHA512
f3328310863793f9e98d7dca6600272490f07a1479882b32913e22819eecd596aab84062b3f38027e93a87ebffc4fb07c5dedb158258c1741cef829d3b40ac88
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SSDEEP
49152:qpjNvr9ySAOmw41HHO+SASagXkJr4MDkUwm:qpjNp7p41HH8n5A
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 behavioral1/memory/4176-1-0x00000000029B0000-0x0000000002AC0000-memory.dmp family_vidar_v7 behavioral1/memory/4816-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4816-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4816-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4816-22-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4816-23-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4816-33-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4816-34-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4816-42-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4816-43-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4816-59-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4816-60-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4816-71-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4816-72-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4816-73-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4816-76-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
kat3C9B.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2080292272-204036150-2159171770-1000\Control Panel\International\Geo\Nation kat3C9B.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat3C9B.tmppid process 4816 kat3C9B.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:
927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exedescription pid process target process PID 4176 set thread context of 4816 4176 927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe kat3C9B.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:
kat3C9B.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat3C9B.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat3C9B.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 4536 timeout.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
kat3C9B.tmppid process 4816 kat3C9B.tmp 4816 kat3C9B.tmp 4816 kat3C9B.tmp 4816 kat3C9B.tmp 4816 kat3C9B.tmp 4816 kat3C9B.tmp 4816 kat3C9B.tmp 4816 kat3C9B.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exekat3C9B.tmpcmd.exedescription pid process target process PID 4176 wrote to memory of 4816 4176 927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe kat3C9B.tmp PID 4176 wrote to memory of 4816 4176 927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe kat3C9B.tmp PID 4176 wrote to memory of 4816 4176 927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe kat3C9B.tmp PID 4176 wrote to memory of 4816 4176 927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe kat3C9B.tmp PID 4176 wrote to memory of 4816 4176 927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe kat3C9B.tmp PID 4176 wrote to memory of 4816 4176 927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe kat3C9B.tmp PID 4176 wrote to memory of 4816 4176 927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe kat3C9B.tmp PID 4176 wrote to memory of 4816 4176 927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe kat3C9B.tmp PID 4816 wrote to memory of 5072 4816 kat3C9B.tmp cmd.exe PID 4816 wrote to memory of 5072 4816 kat3C9B.tmp cmd.exe PID 4816 wrote to memory of 5072 4816 kat3C9B.tmp cmd.exe PID 5072 wrote to memory of 4536 5072 cmd.exe timeout.exe PID 5072 wrote to memory of 4536 5072 cmd.exe timeout.exe PID 5072 wrote to memory of 4536 5072 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe"C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4176 -
C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmpC:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4816 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp" & rd /s /q "C:\ProgramData\KFBGDBFBKKJE" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:5072 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:4536
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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