Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    26-09-2021 19:20

General

  • Target

    bf0aeab3b22d8b377257a5c355f2a83d161d032ce1e7509c9dabe9b559dbf280.exe

  • Size

    1.5MB

  • MD5

    aedd5d2a914cf98878a3ac38e465be81

  • SHA1

    cde5a29aed1059747c7ab7d59ea64db4730de10a

  • SHA256

    bf0aeab3b22d8b377257a5c355f2a83d161d032ce1e7509c9dabe9b559dbf280

  • SHA512

    abb3fa67502e08a9c524151b7fad326716c74a1bdf218346b5aaa6203f394a0d582342d946b85300ac44d687c91cb69341a2f88869598811ddb0c748e740bd0b

Score
10/10

Malware Config

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\bf0aeab3b22d8b377257a5c355f2a83d161d032ce1e7509c9dabe9b559dbf280.exe
    "C:\Users\Admin\AppData\Local\Temp\bf0aeab3b22d8b377257a5c355f2a83d161d032ce1e7509c9dabe9b559dbf280.exe"
    1⤵
    • Loads dropped DLL
    PID:2360
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2360 -s 960
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2732
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2360 -s 1056
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3704
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2360 -s 1120
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3292
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2360 -s 1492
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:352
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2360 -s 1720
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3636
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2360 -s 1704
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:1836
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2360 -s 1632
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:420
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2360 -s 1744
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:1200
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2360 -s 1696
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:1040
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2360 -s 1432
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3328
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2360 -s 1784
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:2248
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2360 -s 1788
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:640
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2360 -s 1924
      2⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3728

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

2
T1081

Collection

Data from Local System

2
T1005

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/2360-115-0x0000000000710000-0x0000000000711000-memory.dmp
    Filesize

    4KB

  • memory/2360-117-0x0000000000400000-0x000000000057E000-memory.dmp
    Filesize

    1.5MB

  • memory/2360-116-0x0000000002AF0000-0x0000000002C0B000-memory.dmp
    Filesize

    1.1MB