Analysis

  • max time kernel
    120s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    13-02-2024 12:23

General

  • Target

    996af577d0b7957878a5555912ddd74f.exe

  • Size

    710KB

  • MD5

    996af577d0b7957878a5555912ddd74f

  • SHA1

    e40f74f3ceab3231f9237fcd4de000ada1b8ee21

  • SHA256

    e3c0e5f7a2d013deae3df17e954419bc9abe5bda42e7b9175c0406ff785e003e

  • SHA512

    7c805b5cabac069157ed8566329f0a1e77573bae82f60450b0d70f7a959c0549019495757900216b8bc64be8269a715529b338c1a5e560daaeba4b57c3e448a4

  • SSDEEP

    12288:HY0BF+5DTXmEtkxOZuX86JY1oowOZ6XxAiVrjJgostVpkIOTJiVTKo:4pKs8XfeXv6T7YHKlITKo

Score
10/10

Malware Config

Extracted

Family

vidar

Version

39.8

Botnet

921

C2

https://xeronxikxxx.tumblr.com/

Attributes
  • profile_id

    921

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar Stealer 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\996af577d0b7957878a5555912ddd74f.exe
    "C:\Users\Admin\AppData\Local\Temp\996af577d0b7957878a5555912ddd74f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2392
    • C:\Users\Admin\AppData\Local\Temp\996af577d0b7957878a5555912ddd74f.exe
      C:\Users\Admin\AppData\Local\Temp\996af577d0b7957878a5555912ddd74f.exe
      2⤵
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:2540
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2540 -s 848
        3⤵
        • Program crash
        PID:1696

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\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar5C67.tmp
    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • memory/2392-0-0x0000000000E70000-0x0000000000F24000-memory.dmp
    Filesize

    720KB

  • memory/2392-1-0x0000000074810000-0x0000000074EFE000-memory.dmp
    Filesize

    6.9MB

  • memory/2392-2-0x0000000004F90000-0x0000000004FD0000-memory.dmp
    Filesize

    256KB

  • memory/2392-3-0x00000000004B0000-0x00000000004B1000-memory.dmp
    Filesize

    4KB

  • memory/2392-4-0x0000000000710000-0x0000000000730000-memory.dmp
    Filesize

    128KB

  • memory/2392-7-0x0000000074810000-0x0000000074EFE000-memory.dmp
    Filesize

    6.9MB

  • memory/2540-5-0x0000000000400000-0x00000000004A1000-memory.dmp
    Filesize

    644KB

  • memory/2540-8-0x0000000000400000-0x00000000004A1000-memory.dmp
    Filesize

    644KB

  • memory/2540-9-0x0000000000400000-0x00000000004A1000-memory.dmp
    Filesize

    644KB

  • memory/2540-68-0x0000000000400000-0x00000000004A1000-memory.dmp
    Filesize

    644KB