Analysis

  • max time kernel
    144s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    23-09-2021 12:20

General

  • Target

    5b2fce91cda0fa71818a683c57c88eb1533b70bcfb5e82b312757b3015d69801.exe

  • Size

    1.5MB

  • MD5

    43ecb980e6e1db8f394af5b6d065eba6

  • SHA1

    36e05d72b5a9efd3e5283d46fb42f0d6204f2ed3

  • SHA256

    5b2fce91cda0fa71818a683c57c88eb1533b70bcfb5e82b312757b3015d69801

  • SHA512

    34062ccbb04992ee177cade1e218b608573fa9c2f0a073960aec3ea34b7140707127829f123fb3af7d7fd1448fc4d2a5958f9bf31833bf7047ff3d3271ecd04b

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 15 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5b2fce91cda0fa71818a683c57c88eb1533b70bcfb5e82b312757b3015d69801.exe
    "C:\Users\Admin\AppData\Local\Temp\5b2fce91cda0fa71818a683c57c88eb1533b70bcfb5e82b312757b3015d69801.exe"
    1⤵
    • Loads dropped DLL
    PID:808
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 780
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1180
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 920
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1336
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 1044
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1460
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 1212
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1716
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 1512
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1948
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 1708
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:2168
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 1680
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:2384
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 1728
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:2616
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 1476
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:2720
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 1484
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:2740
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 1760
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3552
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 1760
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3980
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 1728
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3184
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 1784
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:500
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 1692
      2⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:580

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • \ProgramData\mozglue.dll

    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • \ProgramData\nss3.dll

    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • memory/808-114-0x0000000000690000-0x00000000007DA000-memory.dmp

    Filesize

    1.3MB

  • memory/808-116-0x0000000000400000-0x000000000057E000-memory.dmp

    Filesize

    1.5MB

  • memory/808-115-0x0000000002A70000-0x0000000002B8B000-memory.dmp

    Filesize

    1.1MB