Analysis

  • max time kernel
    118s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26-10-2024 15:46

General

  • Target

    f6cf1cab4deb2e0c7f51aa2a632d88992f1e348be5b83b98684283daf0a3d7e8N.exe

  • Size

    594KB

  • MD5

    ec7ada80d5d59dc9573a1e88fceda380

  • SHA1

    bc16fe10386779dad3fa68d8778d3b770ef0b551

  • SHA256

    f6cf1cab4deb2e0c7f51aa2a632d88992f1e348be5b83b98684283daf0a3d7e8

  • SHA512

    36c6166405ea873fa51a68f4422494c402d71bd0aba89ea0dc473d73ec8a97c0803512f8aef4135fc106038580451210d869ef85d3189688edf2f45ac93ea777

  • SSDEEP

    12288:2CTksllSkJd8xYV0SDYYyYnIVdXgM9zGk9wx4GsTrQIJ4ZOiqcKS:nlbJ0/S0YMpzOaUXZy

Malware Config

Extracted

Family

vidar

Version

11.1

Botnet

0b3bd69430b7d827b107ba2ed809207d

C2

https://steamcommunity.com/profiles/76561199786602107

https://t.me/lpnjoke

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 13 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar family
  • Downloads MZ/PE file
  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • 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
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 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.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f6cf1cab4deb2e0c7f51aa2a632d88992f1e348be5b83b98684283daf0a3d7e8N.exe
    "C:\Users\Admin\AppData\Local\Temp\f6cf1cab4deb2e0c7f51aa2a632d88992f1e348be5b83b98684283daf0a3d7e8N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2656
    • C:\Users\Admin\AppData\Local\Temp\f6cf1cab4deb2e0c7f51aa2a632d88992f1e348be5b83b98684283daf0a3d7e8N.exe
      "C:\Users\Admin\AppData\Local\Temp\f6cf1cab4deb2e0c7f51aa2a632d88992f1e348be5b83b98684283daf0a3d7e8N.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2692
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\FIECBFIDGDAK" & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1592
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:484
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2656 -s 52
      2⤵
      • Program crash
      PID:2012

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    1KB

    MD5

    a266bb7dcc38a562631361bbf61dd11b

    SHA1

    3b1efd3a66ea28b16697394703a72ca340a05bd5

    SHA256

    df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

    SHA512

    0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    67a2f78120f3acb65528e3e43b1f8726

    SHA1

    21df0baef1dfd8ea41ddf66bb34549d3fc6f8a33

    SHA256

    05230d416860d37b179cd659eb0917684e5e0b3650cf027d159e9f04e2e92769

    SHA512

    2458a3aaea9c15a9d1099ae16581e8932c0f798867445c907c29a657e3c9105f844196d36ac91b63150333430cdd96e96fee27041ade5cb40580c3e4c6db0a44

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    242B

    MD5

    1a4924bf3c08b7cff69805209b6afad2

    SHA1

    e7c282ea5032d1592ec97266fcd824ef956665d0

    SHA256

    1b54c5c7e78b13b1262c74d870b855934baa962636c99e19e899885112c77f8c

    SHA512

    1d1fd2f70a499c5e2293fcf0f6bd40bd34eced8126135477f0e0b5b8b8b6d0d071cdeab76fc8df05aff4aedfdd75ccfc4e4be9f50b4ab2ff202fb3ff019b0b0c

  • C:\Users\Admin\AppData\Local\Temp\Cab408.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar42B.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • \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

  • memory/2656-0-0x0000000000D8B000-0x0000000000D8D000-memory.dmp

    Filesize

    8KB

  • memory/2692-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2692-231-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2692-2-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2692-4-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2692-5-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2692-14-0x0000000000D00000-0x0000000000D98000-memory.dmp

    Filesize

    608KB

  • memory/2692-153-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2692-190-0x0000000020750000-0x00000000209AF000-memory.dmp

    Filesize

    2.4MB

  • memory/2692-205-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2692-3-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2692-286-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2692-11-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2692-9-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2692-356-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2692-375-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2692-420-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2692-443-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2692-6-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2692-1-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB