Analysis

  • max time kernel
    141s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    20-01-2024 19:04

General

  • Target

    6b36bdb310bd460c38a40d7173001661.exe

  • Size

    608KB

  • MD5

    6b36bdb310bd460c38a40d7173001661

  • SHA1

    d43fb3f7bcfec08320500a4cb58fca5bab9865a2

  • SHA256

    c14ef442698e3a613e47deb6a6fb477235a88f857ce3f5a8f5cfcbe43c4f7742

  • SHA512

    f5c46faa369311d0be55693de3a5e63b3cb9f71cef011f236b08411fb8362b7bb0958e18fe903f3055668c95f4605dfc3229fae29bc5baf4de11a32919702d34

  • SSDEEP

    12288:+TxArCO6G6mElkIq+mtc/RzZ9ghXH7pzH3Y+dMTyZqib802:rWO6dqurg5H7ljm02

Score
10/10

Malware Config

Extracted

Family

vidar

Version

40

Botnet

916

C2

https://lenak513.tumblr.com/

Attributes
  • profile_id

    916

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar Stealer 4 IoCs
  • Program crash 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6b36bdb310bd460c38a40d7173001661.exe
    "C:\Users\Admin\AppData\Local\Temp\6b36bdb310bd460c38a40d7173001661.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:1716
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 868
      2⤵
      • Program crash
      PID:2644

Network

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab1EB9.tmp
    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar1ECC.tmp
    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • memory/1716-1-0x0000000000AE0000-0x0000000000BE0000-memory.dmp
    Filesize

    1024KB

  • memory/1716-2-0x0000000000220000-0x00000000002BD000-memory.dmp
    Filesize

    628KB

  • memory/1716-3-0x0000000000400000-0x000000000094D000-memory.dmp
    Filesize

    5.3MB

  • memory/1716-57-0x0000000000400000-0x000000000094D000-memory.dmp
    Filesize

    5.3MB

  • memory/1716-58-0x0000000000AE0000-0x0000000000BE0000-memory.dmp
    Filesize

    1024KB

  • memory/1716-60-0x0000000000220000-0x00000000002BD000-memory.dmp
    Filesize

    628KB