Analysis
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max time kernel
40s -
max time network
50s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
29-06-2024 07:12
Static task
static1
Behavioral task
behavioral1
Sample
67cc7f190451b5db4126bfc089ae5aa9f073ab3b9659729bed04fd42c8106e99.exe
Resource
win7-20240220-en
General
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Target
67cc7f190451b5db4126bfc089ae5aa9f073ab3b9659729bed04fd42c8106e99.exe
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Size
2.2MB
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MD5
38867c386c1a7ec5b668daefb6056e17
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SHA1
e018178ea04dac16be65f4a0fa42c5b95d587d3d
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SHA256
67cc7f190451b5db4126bfc089ae5aa9f073ab3b9659729bed04fd42c8106e99
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SHA512
26e3354af53fca63b510038b32be84b29dca046ccbf7d2bc2adb9eb64a478b680e4cc7ef44253b73a1c5ccffaf48fed776256ec406c92fcb0118c67207e50136
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SSDEEP
49152:qpjNvr9ySAOmw4RHHO+SASagXkJr4MDkUwm:qpjNp7p4RHH8n5A
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 9 IoCs
Processes:
resource yara_rule behavioral2/memory/1840-1-0x0000000004000000-0x0000000004110000-memory.dmp family_vidar_v7 behavioral2/memory/5000-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5000-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5000-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5000-11-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5000-12-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5000-13-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5000-14-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5000-17-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
kat4F1A.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation kat4F1A.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat4F1A.tmppid process 5000 kat4F1A.tmp -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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:
67cc7f190451b5db4126bfc089ae5aa9f073ab3b9659729bed04fd42c8106e99.exedescription pid process target process PID 1840 set thread context of 5000 1840 67cc7f190451b5db4126bfc089ae5aa9f073ab3b9659729bed04fd42c8106e99.exe kat4F1A.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:
kat4F1A.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat4F1A.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4F1A.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 644 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
kat4F1A.tmppid process 5000 kat4F1A.tmp 5000 kat4F1A.tmp 5000 kat4F1A.tmp 5000 kat4F1A.tmp 5000 kat4F1A.tmp 5000 kat4F1A.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
67cc7f190451b5db4126bfc089ae5aa9f073ab3b9659729bed04fd42c8106e99.exekat4F1A.tmpcmd.exedescription pid process target process PID 1840 wrote to memory of 5000 1840 67cc7f190451b5db4126bfc089ae5aa9f073ab3b9659729bed04fd42c8106e99.exe kat4F1A.tmp PID 1840 wrote to memory of 5000 1840 67cc7f190451b5db4126bfc089ae5aa9f073ab3b9659729bed04fd42c8106e99.exe kat4F1A.tmp PID 1840 wrote to memory of 5000 1840 67cc7f190451b5db4126bfc089ae5aa9f073ab3b9659729bed04fd42c8106e99.exe kat4F1A.tmp PID 1840 wrote to memory of 5000 1840 67cc7f190451b5db4126bfc089ae5aa9f073ab3b9659729bed04fd42c8106e99.exe kat4F1A.tmp PID 1840 wrote to memory of 5000 1840 67cc7f190451b5db4126bfc089ae5aa9f073ab3b9659729bed04fd42c8106e99.exe kat4F1A.tmp PID 1840 wrote to memory of 5000 1840 67cc7f190451b5db4126bfc089ae5aa9f073ab3b9659729bed04fd42c8106e99.exe kat4F1A.tmp PID 1840 wrote to memory of 5000 1840 67cc7f190451b5db4126bfc089ae5aa9f073ab3b9659729bed04fd42c8106e99.exe kat4F1A.tmp PID 1840 wrote to memory of 5000 1840 67cc7f190451b5db4126bfc089ae5aa9f073ab3b9659729bed04fd42c8106e99.exe kat4F1A.tmp PID 5000 wrote to memory of 5016 5000 kat4F1A.tmp cmd.exe PID 5000 wrote to memory of 5016 5000 kat4F1A.tmp cmd.exe PID 5000 wrote to memory of 5016 5000 kat4F1A.tmp cmd.exe PID 5016 wrote to memory of 644 5016 cmd.exe timeout.exe PID 5016 wrote to memory of 644 5016 cmd.exe timeout.exe PID 5016 wrote to memory of 644 5016 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\67cc7f190451b5db4126bfc089ae5aa9f073ab3b9659729bed04fd42c8106e99.exe"C:\Users\Admin\AppData\Local\Temp\67cc7f190451b5db4126bfc089ae5aa9f073ab3b9659729bed04fd42c8106e99.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1840 -
C:\Users\Admin\AppData\Local\Temp\kat4F1A.tmpC:\Users\Admin\AppData\Local\Temp\kat4F1A.tmp2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5000 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat4F1A.tmp" & rd /s /q "C:\ProgramData\EHJJKFCBGIDG" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:5016 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:644
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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