Analysis
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max time kernel
147s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240611-en -
resource tags
arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system -
submitted
01-07-2024 00:59
Static task
static1
Behavioral task
behavioral1
Sample
1d9a4b30d701d760496889db13feea1ceab8fee605bedec3960b4bffa7d2044a.exe
Resource
win10v2004-20240611-en
General
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Target
1d9a4b30d701d760496889db13feea1ceab8fee605bedec3960b4bffa7d2044a.exe
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Size
2.2MB
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MD5
d12105d3018a3dc2e473fa1904c5fc45
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SHA1
358a14db2bd9fda6c6dffda424a5311fa21d6f6f
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SHA256
1d9a4b30d701d760496889db13feea1ceab8fee605bedec3960b4bffa7d2044a
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SHA512
4a860530ac59a87ed5f5b00f14366ed2431d081aa97e4af56909af0990bc64b6af3d2fc003cd2d946242b183207b05e9d0b333cf85ef1e15ebd965813a67efbb
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SSDEEP
24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgX3pU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPG21tuuIeNHYGY0LzjsJxK
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/3876-1-0x00000000040D0000-0x00000000041E3000-memory.dmp family_vidar_v7 behavioral2/memory/2464-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2464-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2464-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2464-24-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2464-25-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2464-35-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2464-36-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2464-44-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2464-60-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2464-61-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2464-62-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2464-73-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2464-74-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2464-75-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2464-78-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat35F4.tmppid process 2464 kat35F4.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:
1d9a4b30d701d760496889db13feea1ceab8fee605bedec3960b4bffa7d2044a.exedescription pid process target process PID 3876 set thread context of 2464 3876 1d9a4b30d701d760496889db13feea1ceab8fee605bedec3960b4bffa7d2044a.exe kat35F4.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:
kat35F4.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat35F4.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat35F4.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 4852 timeout.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
kat35F4.tmppid process 2464 kat35F4.tmp 2464 kat35F4.tmp 2464 kat35F4.tmp 2464 kat35F4.tmp 2464 kat35F4.tmp 2464 kat35F4.tmp 2464 kat35F4.tmp 2464 kat35F4.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
1d9a4b30d701d760496889db13feea1ceab8fee605bedec3960b4bffa7d2044a.exekat35F4.tmpcmd.exedescription pid process target process PID 3876 wrote to memory of 2464 3876 1d9a4b30d701d760496889db13feea1ceab8fee605bedec3960b4bffa7d2044a.exe kat35F4.tmp PID 3876 wrote to memory of 2464 3876 1d9a4b30d701d760496889db13feea1ceab8fee605bedec3960b4bffa7d2044a.exe kat35F4.tmp PID 3876 wrote to memory of 2464 3876 1d9a4b30d701d760496889db13feea1ceab8fee605bedec3960b4bffa7d2044a.exe kat35F4.tmp PID 3876 wrote to memory of 2464 3876 1d9a4b30d701d760496889db13feea1ceab8fee605bedec3960b4bffa7d2044a.exe kat35F4.tmp PID 3876 wrote to memory of 2464 3876 1d9a4b30d701d760496889db13feea1ceab8fee605bedec3960b4bffa7d2044a.exe kat35F4.tmp PID 3876 wrote to memory of 2464 3876 1d9a4b30d701d760496889db13feea1ceab8fee605bedec3960b4bffa7d2044a.exe kat35F4.tmp PID 3876 wrote to memory of 2464 3876 1d9a4b30d701d760496889db13feea1ceab8fee605bedec3960b4bffa7d2044a.exe kat35F4.tmp PID 3876 wrote to memory of 2464 3876 1d9a4b30d701d760496889db13feea1ceab8fee605bedec3960b4bffa7d2044a.exe kat35F4.tmp PID 2464 wrote to memory of 3124 2464 kat35F4.tmp cmd.exe PID 2464 wrote to memory of 3124 2464 kat35F4.tmp cmd.exe PID 2464 wrote to memory of 3124 2464 kat35F4.tmp cmd.exe PID 3124 wrote to memory of 4852 3124 cmd.exe timeout.exe PID 3124 wrote to memory of 4852 3124 cmd.exe timeout.exe PID 3124 wrote to memory of 4852 3124 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1d9a4b30d701d760496889db13feea1ceab8fee605bedec3960b4bffa7d2044a.exe"C:\Users\Admin\AppData\Local\Temp\1d9a4b30d701d760496889db13feea1ceab8fee605bedec3960b4bffa7d2044a.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat35F4.tmpC:\Users\Admin\AppData\Local\Temp\kat35F4.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat35F4.tmp" & rd /s /q "C:\ProgramData\IIJJDGHJKKJE" & exit3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\kat35F4.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2464-35-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2464-78-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2464-27-0x000000002D160000-0x000000002D3BF000-memory.dmpFilesize
2.4MB
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memory/2464-75-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2464-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2464-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2464-24-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2464-25-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2464-9-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2464-74-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2464-44-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2464-36-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2464-60-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2464-61-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2464-62-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2464-73-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3876-1-0x00000000040D0000-0x00000000041E3000-memory.dmpFilesize
1.1MB
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memory/3876-10-0x0000000000400000-0x0000000000641000-memory.dmpFilesize
2.3MB
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memory/3876-0-0x0000000000910000-0x0000000000911000-memory.dmpFilesize
4KB