Analysis

  • max time kernel
    117s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    26-09-2021 23:52

General

  • Target

    53745473d4da93fdfa8e47ec0859cb54375832974f2b22c4c119e30f9cf3225e.exe

  • Size

    1.5MB

  • MD5

    cfa17828f51ebedba4d215c800296732

  • SHA1

    90e2f0e1c8242c6edfb763beee3736f2d74c9f78

  • SHA256

    53745473d4da93fdfa8e47ec0859cb54375832974f2b22c4c119e30f9cf3225e

  • SHA512

    ffa05e2037d37c1ee89eac954d9a0569048e6f452bab9b49413624b1567e052537e676e5bd4f24dcd7ee7eac88bb873c78ec98d3344eea62254544eae11268c0

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\53745473d4da93fdfa8e47ec0859cb54375832974f2b22c4c119e30f9cf3225e.exe
    "C:\Users\Admin\AppData\Local\Temp\53745473d4da93fdfa8e47ec0859cb54375832974f2b22c4c119e30f9cf3225e.exe"
    1⤵
    • Loads dropped DLL
    PID:3696
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 992
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3004
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 1056
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4264
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 1068
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:748
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 1204
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4312
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 1496
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3988
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 1712
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3576
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 1536
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:4328
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 1680
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:4364
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 1768
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:4324
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 1480
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:4552
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 1836
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:4636
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 1828
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:4640
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 1844
      2⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:2184

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/3696-115-0x0000000000700000-0x0000000000701000-memory.dmp
    Filesize

    4KB

  • memory/3696-116-0x0000000002A00000-0x0000000002B1B000-memory.dmp
    Filesize

    1.1MB

  • memory/3696-117-0x0000000000400000-0x000000000057E000-memory.dmp
    Filesize

    1.5MB