Analysis

  • max time kernel
    77s
  • max time network
    126s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    20-10-2021 08:39

General

  • Target

    mixsix_20211019-165848.exe

  • Size

    284KB

  • MD5

    43d1162f6247a5d3ebf354b713ff33c5

  • SHA1

    55d2f68ee15c17111ed8f9307991c496f512c1fb

  • SHA256

    da07eafad62111cfb7276c0c606bf7b4704bb122a19b80b769654c3459e664d6

  • SHA512

    479288bc1d8187f8be3f0e2acffaea303ffb7fbffff8300c8dd571e162ef253fa8ab89ca7dcbe129781f64b269994fb343d1ce65bbf1eb693d74b8c69b060e23

Malware Config

Extracted

Family

arkei

Botnet

Default

C2

http://truzen.info/ggate.php

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Arkei Stealer Payload 2 IoCs
  • Downloads MZ/PE file
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\mixsix_20211019-165848.exe
    "C:\Users\Admin\AppData\Local\Temp\mixsix_20211019-165848.exe"
    1⤵
    • Loads dropped DLL
    PID:1672
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1672 -s 1272
      2⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1156

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

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

  • \ProgramData\sqlite3.dll
    MD5

    e477a96c8f2b18d6b5c27bde49c990bf

    SHA1

    e980c9bf41330d1e5bd04556db4646a0210f7409

    SHA256

    16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

    SHA512

    335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

  • memory/1672-115-0x0000000003289000-0x0000000003298000-memory.dmp
    Filesize

    60KB

  • memory/1672-117-0x0000000000400000-0x0000000002F0F000-memory.dmp
    Filesize

    43.1MB

  • memory/1672-116-0x0000000003250000-0x0000000003269000-memory.dmp
    Filesize

    100KB