Analysis

  • max time kernel
    46s
  • max time network
    111s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28-10-2022 06:36

General

  • Target

    799f2747bfd32e55f313521cecf93182c6067f16edab1.exe

  • Size

    345KB

  • MD5

    389225207ba356127263222954a68a16

  • SHA1

    a85970a73f5cb71c7481fbee46790edcc911b5f0

  • SHA256

    799f2747bfd32e55f313521cecf93182c6067f16edab15ab3f789601c33d50c9

  • SHA512

    e6cd5da7f3921099007220ff2adde85fda0b980b4b4e12fa556f1b120522032987f96c11cf36ff42b842d9139b90f279e70eb00959f228a6210d617bd6672ff0

  • SSDEEP

    6144:w5qeYoZ/ayrv56SISEDj80xxS5iXxlAquO0:w5qeJayz56SISEDjr+iXxlAqu/

Malware Config

Extracted

Family

vidar

Version

55.3

Botnet

517

C2

https://t.me/slivetalks

https://c.im/@xinibin420

Attributes
  • profile_id

    517

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\799f2747bfd32e55f313521cecf93182c6067f16edab1.exe
    "C:\Users\Admin\AppData\Local\Temp\799f2747bfd32e55f313521cecf93182c6067f16edab1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1132
    • C:\Users\Admin\AppData\Local\Temp\799f2747bfd32e55f313521cecf93182c6067f16edab1.exe
      "C:\Users\Admin\AppData\Local\Temp\799f2747bfd32e55f313521cecf93182c6067f16edab1.exe"
      2⤵
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1172
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\799f2747bfd32e55f313521cecf93182c6067f16edab1.exe" & exit
        3⤵
        • Deletes itself
        • Suspicious use of WriteProcessMemory
        PID:1756
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 6
          4⤵
          • Delays execution with timeout.exe
          PID:1312

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • \ProgramData\mozglue.dll
    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll
    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • \ProgramData\sqlite3.dll
    Filesize

    1.1MB

    MD5

    1f44d4d3087c2b202cf9c90ee9d04b0f

    SHA1

    106a3ebc9e39ab6ddb3ff987efb6527c956f192d

    SHA256

    4841020c8bd06b08fde6e44cbe2e2ab33439e1c8368e936ec5b00dc0584f7260

    SHA512

    b614c72a3c1ce681ebffa628e29aa50275cc80ca9267380960c5198ea4d0a3f2df6cfb7275491d220bad72f14fc94e6656501e9a061d102fb11e00cfda2beb45

  • memory/1132-58-0x00000000003B0000-0x00000000003F9000-memory.dmp
    Filesize

    292KB

  • memory/1132-56-0x00000000002CA000-0x00000000002F6000-memory.dmp
    Filesize

    176KB

  • memory/1172-59-0x0000000000400000-0x000000000045E000-memory.dmp
    Filesize

    376KB

  • memory/1172-60-0x0000000075561000-0x0000000075563000-memory.dmp
    Filesize

    8KB

  • memory/1172-61-0x0000000000400000-0x000000000045E000-memory.dmp
    Filesize

    376KB

  • memory/1172-54-0x0000000000400000-0x000000000045E000-memory.dmp
    Filesize

    376KB

  • memory/1172-55-0x000000000042020C-mapping.dmp
  • memory/1172-66-0x0000000000400000-0x000000000045E000-memory.dmp
    Filesize

    376KB

  • memory/1312-67-0x0000000000000000-mapping.dmp
  • memory/1756-65-0x0000000000000000-mapping.dmp