Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    26-09-2021 21:54

General

  • Target

    7207b1ba93da1c2ffc74c49605e9d8299047dfad67515622ba9a9432d647bdfa.exe

  • Size

    1.5MB

  • MD5

    be08cb557979e1056d76383b1612ff51

  • SHA1

    54b55a2a6125696738db027ebee3bae6c2db2723

  • SHA256

    7207b1ba93da1c2ffc74c49605e9d8299047dfad67515622ba9a9432d647bdfa

  • SHA512

    ab86ae48aa6759bdf705025bd5c563aba910c22cc2380eccb1409b05c435304d9042d19e82a45f9fb86b63a5cf78457602b44ff3385ebca3282c291e24117ed2

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\7207b1ba93da1c2ffc74c49605e9d8299047dfad67515622ba9a9432d647bdfa.exe
    "C:\Users\Admin\AppData\Local\Temp\7207b1ba93da1c2ffc74c49605e9d8299047dfad67515622ba9a9432d647bdfa.exe"
    1⤵
    • Loads dropped DLL
    PID:2352
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2352 -s 964
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2688
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2352 -s 1056
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3700
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2352 -s 1068
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3480
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2352 -s 1204
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4068
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2352 -s 1548
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3636
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2352 -s 1696
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:1836
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2352 -s 1732
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:504
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2352 -s 1716
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:1328
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2352 -s 1472
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:680
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2352 -s 1680
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:1068
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2352 -s 1764
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:1368
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2352 -s 1716
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:392
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2352 -s 1784
      2⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:672

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/2352-115-0x00000000007E0000-0x00000000007E1000-memory.dmp
    Filesize

    4KB

  • memory/2352-116-0x0000000002990000-0x0000000002AAB000-memory.dmp
    Filesize

    1.1MB

  • memory/2352-117-0x0000000000400000-0x000000000057E000-memory.dmp
    Filesize

    1.5MB