Analysis

  • max time kernel
    119s
  • max time network
    136s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    23-09-2021 12:11

General

  • Target

    d5630b0bd4a32f7f0494ff146ff149d45cbce7fcd994463733e2fc67c2a17089.exe

  • Size

    1.5MB

  • MD5

    cb88ac312cbb52b9e38a6faf88adc5d4

  • SHA1

    077f5657e9291c4d718953501f9d4203a5c60365

  • SHA256

    d5630b0bd4a32f7f0494ff146ff149d45cbce7fcd994463733e2fc67c2a17089

  • SHA512

    22ecdcf215500589e7cb5ccc96cae99140cd20410dd8aef3035298a7e006e6fddd58a7404d8dcd8fd72725186d1de326d21a06152d314180804d5685f778ba40

Malware Config

Extracted

Family

vidar

Version

41

Botnet

1013

C2

https://mas.to/@killern0

Attributes
  • profile_id

    1013

Signatures

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar Stealer 2 IoCs
  • Downloads MZ/PE file
  • Loads dropped DLL 2 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
  • Program crash 13 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d5630b0bd4a32f7f0494ff146ff149d45cbce7fcd994463733e2fc67c2a17089.exe
    "C:\Users\Admin\AppData\Local\Temp\d5630b0bd4a32f7f0494ff146ff149d45cbce7fcd994463733e2fc67c2a17089.exe"
    1⤵
    • Loads dropped DLL
    PID:2524
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 784
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3768
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 1052
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1860
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 1064
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4092
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 1488
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4012
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 1480
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4072
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 1704
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:1404
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 1496
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:604
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 1516
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3688
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 1688
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:1192
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 1776
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3180
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 1684
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:1384
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 1700
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:1784
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 1692
      2⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:872

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \ProgramData\mozglue.dll

    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • \ProgramData\nss3.dll

    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • memory/2524-115-0x00000000006C0000-0x000000000080A000-memory.dmp

    Filesize

    1.3MB

  • memory/2524-116-0x0000000002910000-0x0000000002A2B000-memory.dmp

    Filesize

    1.1MB

  • memory/2524-117-0x0000000000400000-0x000000000057E000-memory.dmp

    Filesize

    1.5MB