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Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20/09/2024, 12:14

General

  • Target

    file.exe

  • Size

    401KB

  • MD5

    5f1ea69f876e6c0b3f52c49cb56a5933

  • SHA1

    25efa25249943f752eb980d33a9945f126310fa9

  • SHA256

    bf41950c2b87050f69bbcb6cb810e990d9a1f60a7109e8a3ba4668f2e397db96

  • SHA512

    b6636579c7ef7b18e65bbf331527e3069c3b3c403fc21744f1692f1f882dc2e67ebc4c003ca857b2fa460fcc9e078f6c4dbbb1205d232f198e8046c7036dd2b3

  • SSDEEP

    12288:DuSEc/XKSAotoNQQGqlWAmyF0x3EGXY0kD:DIcPKTotHQ5Wzp5SD

Malware Config

Extracted

Family

vidar

Version

11

Botnet

b438a316528fda660b5e4e28911b77a1

C2

https://steamcommunity.com/profiles/76561199780418869

https://t.me/ae5ed

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Signatures

  • Detect Vidar Stealer 10 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Downloads MZ/PE file
  • Reads user/profile data of web browsers 2 TTPs

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

  • 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
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2204
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      PID:2428

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabD06B.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarD09D.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • memory/2204-1-0x0000000000920000-0x0000000000988000-memory.dmp

    Filesize

    416KB

  • memory/2204-2-0x00000000747C0000-0x0000000074EAE000-memory.dmp

    Filesize

    6.9MB

  • memory/2204-4-0x00000000747C0000-0x0000000074EAE000-memory.dmp

    Filesize

    6.9MB

  • memory/2204-0-0x00000000747CE000-0x00000000747CF000-memory.dmp

    Filesize

    4KB

  • memory/2204-15-0x00000000747C0000-0x0000000074EAE000-memory.dmp

    Filesize

    6.9MB

  • memory/2428-8-0x0000000000400000-0x0000000000675000-memory.dmp

    Filesize

    2.5MB

  • memory/2428-19-0x0000000000400000-0x0000000000675000-memory.dmp

    Filesize

    2.5MB

  • memory/2428-10-0x0000000000400000-0x0000000000675000-memory.dmp

    Filesize

    2.5MB

  • memory/2428-9-0x0000000000400000-0x0000000000675000-memory.dmp

    Filesize

    2.5MB

  • memory/2428-7-0x0000000000400000-0x0000000000675000-memory.dmp

    Filesize

    2.5MB

  • memory/2428-6-0x0000000000400000-0x0000000000675000-memory.dmp

    Filesize

    2.5MB

  • memory/2428-18-0x0000000000400000-0x0000000000675000-memory.dmp

    Filesize

    2.5MB

  • memory/2428-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2428-14-0x0000000000400000-0x0000000000675000-memory.dmp

    Filesize

    2.5MB

  • memory/2428-5-0x0000000000400000-0x0000000000675000-memory.dmp

    Filesize

    2.5MB

  • memory/2428-160-0x0000000000400000-0x0000000000675000-memory.dmp

    Filesize

    2.5MB

  • memory/2428-179-0x0000000000400000-0x0000000000675000-memory.dmp

    Filesize

    2.5MB

  • memory/2428-199-0x0000000020630000-0x000000002088F000-memory.dmp

    Filesize

    2.4MB

  • memory/2428-209-0x0000000000400000-0x0000000000675000-memory.dmp

    Filesize

    2.5MB

  • memory/2428-228-0x0000000000400000-0x0000000000675000-memory.dmp

    Filesize

    2.5MB