Analysis

  • max time kernel
    122s
  • max time network
    156s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    21/01/2022, 12:12

General

  • Target
    a92393ed590a3d90bf8ec8f1dfa4433f.exe
  • Size 149KB
  • Sample220121-pc6tlahcfr
  • SHA256 d0fef87fd7e5a7214773deef4c445970147c88d5335867b552f9d4d22ef0231b
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • asyncrat

Version
  • 1.0.7

Botnet
  • crax.pro

C2
  • 137.117.100.173:443

Mutex
  • DEV1LMTXR

Attributes
  • anti_vm

    false

  • bsod

    true

  • delay

    1

  • install

    false

  • install_file

    RuntimeBroker.exe

  • install_folder

    %Temp%

  • pastebin_config

    null

aes.plain

Extracted

Family
  • redline

Botnet
  • @zerosumOxO

C2
  • 137.117.100.173:36513

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers.

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 1 IoCs
  • Async RAT payload 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a92393ed590a3d90bf8ec8f1dfa4433f.exe
    "C:\Users\Admin\AppData\Local\Temp\a92393ed590a3d90bf8ec8f1dfa4433f.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3708

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/3708-115-0x0000025D6D4B0000-0x0000025D6D4DC000-memory.dmp

        memory/3708-116-0x0000025D6D830000-0x0000025D6D838000-memory.dmp

        memory/3708-117-0x0000025D6F980000-0x0000025D6F982000-memory.dmp

        memory/3708-118-0x0000025D6F190000-0x0000025D6F1A6000-memory.dmp

        memory/3708-120-0x0000025D6F984000-0x0000025D6F985000-memory.dmp

        memory/3708-119-0x0000025D6F982000-0x0000025D6F984000-memory.dmp

        memory/3708-121-0x0000025D6D860000-0x0000025D6D87A000-memory.dmp

        memory/3708-123-0x0000025D6F987000-0x0000025D6F989000-memory.dmp

        memory/3708-122-0x0000025D6F985000-0x0000025D6F987000-memory.dmp

        memory/3708-124-0x0000025D6F989000-0x0000025D6F98A000-memory.dmp

        memory/3708-125-0x0000025D6F98A000-0x0000025D6F98F000-memory.dmp

        memory/3708-126-0x0000025D70530000-0x0000025D705A6000-memory.dmp

        memory/3708-127-0x0000025D6F8E0000-0x0000025D6F8EE000-memory.dmp

        memory/3708-128-0x0000025D6FCB0000-0x0000025D6FCCE000-memory.dmp

        memory/3708-129-0x0000025D6FCD0000-0x0000025D6FCEE000-memory.dmp

        memory/3708-130-0x0000025D703E0000-0x0000025D703F2000-memory.dmp

        memory/3708-131-0x0000025D704F0000-0x0000025D7052E000-memory.dmp

        memory/3708-132-0x0000025D72C40000-0x0000025D72D4A000-memory.dmp

        memory/3708-133-0x0000025D73640000-0x0000025D73802000-memory.dmp

        memory/3708-134-0x0000025D73D40000-0x0000025D74266000-memory.dmp