Analysis

  • max time kernel
    118s
  • max time network
    126s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    19-10-2021 13:35

General

  • Target

    e770761477d224bb737862944b9a933f.exe

  • Size

    658KB

  • MD5

    e770761477d224bb737862944b9a933f

  • SHA1

    f2fe97e649e235430bb3f1862dad6da7d0377ca7

  • SHA256

    881df3054f29b28ef9fb5342b18591a295aefb3d7c2fe1d0f6272b10819e1f8b

  • SHA512

    5b151c18fb4edd9d8ea269ba60440267d19c997c3711db93459758c9fbc4cfe48735545a6c333c22b0a2daca4c9b0ac4ed64725cdc0057e6a186ac7b042509a3

Malware Config

Extracted

Family

redline

Botnet

mix19.10

C2

185.215.113.15:57055

Signatures

  • RedLine

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

  • RedLine Payload 2 IoCs
  • suricata: ET MALWARE AutoHotkey Downloader Checkin via IPLogger

    suricata: ET MALWARE AutoHotkey Downloader Checkin via IPLogger

  • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

  • Downloads MZ/PE file
  • Executes dropped EXE 1 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.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e770761477d224bb737862944b9a933f.exe
    "C:\Users\Admin\AppData\Local\Temp\e770761477d224bb737862944b9a933f.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2632
    • C:\Users\Admin\AppData\Roaming\wowsfree\mopnns.exe
      mopnns.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:424

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\wowsfree\mopnns.exe
    MD5

    f75dbcb091e82f8f4a4ed66fdb0578d1

    SHA1

    f7e666941c03decf5fda3fcb302c24e837c1e816

    SHA256

    90c625663d0140d183420da24b3cd35d32671434e3773eb1c6061a3a4f61e702

    SHA512

    ee1f8e1942d7ee645ebd6d4acab0afe088dd34becca2a363ba966a7e1b820b55886e6a80143a80d3226f57dd859c919c79d8a2d8a270bec4bd657341af628683

  • C:\Users\Admin\AppData\Roaming\wowsfree\mopnns.exe
    MD5

    f75dbcb091e82f8f4a4ed66fdb0578d1

    SHA1

    f7e666941c03decf5fda3fcb302c24e837c1e816

    SHA256

    90c625663d0140d183420da24b3cd35d32671434e3773eb1c6061a3a4f61e702

    SHA512

    ee1f8e1942d7ee645ebd6d4acab0afe088dd34becca2a363ba966a7e1b820b55886e6a80143a80d3226f57dd859c919c79d8a2d8a270bec4bd657341af628683

  • memory/424-128-0x0000000004BA2000-0x0000000004BA3000-memory.dmp
    Filesize

    4KB

  • memory/424-121-0x0000000002FF7000-0x000000000301A000-memory.dmp
    Filesize

    140KB

  • memory/424-129-0x0000000004BA3000-0x0000000004BA4000-memory.dmp
    Filesize

    4KB

  • memory/424-141-0x0000000009770000-0x0000000009771000-memory.dmp
    Filesize

    4KB

  • memory/424-130-0x0000000007960000-0x0000000007961000-memory.dmp
    Filesize

    4KB

  • memory/424-122-0x0000000004990000-0x00000000049C0000-memory.dmp
    Filesize

    192KB

  • memory/424-123-0x0000000000400000-0x0000000002DB7000-memory.dmp
    Filesize

    41.7MB

  • memory/424-131-0x0000000007FF0000-0x0000000007FF1000-memory.dmp
    Filesize

    4KB

  • memory/424-125-0x0000000007440000-0x0000000007441000-memory.dmp
    Filesize

    4KB

  • memory/424-126-0x0000000007940000-0x000000000795D000-memory.dmp
    Filesize

    116KB

  • memory/424-140-0x00000000095B0000-0x00000000095B1000-memory.dmp
    Filesize

    4KB

  • memory/424-127-0x0000000004BA0000-0x0000000004BA1000-memory.dmp
    Filesize

    4KB

  • memory/424-139-0x00000000093A0000-0x00000000093A1000-memory.dmp
    Filesize

    4KB

  • memory/424-118-0x0000000000000000-mapping.dmp
  • memory/424-124-0x0000000004AD0000-0x0000000004AEF000-memory.dmp
    Filesize

    124KB

  • memory/424-132-0x0000000008020000-0x0000000008021000-memory.dmp
    Filesize

    4KB

  • memory/424-133-0x0000000004BA4000-0x0000000004BA6000-memory.dmp
    Filesize

    8KB

  • memory/424-134-0x0000000008130000-0x0000000008131000-memory.dmp
    Filesize

    4KB

  • memory/424-135-0x00000000081B0000-0x00000000081B1000-memory.dmp
    Filesize

    4KB

  • memory/424-136-0x0000000008DD0000-0x0000000008DD1000-memory.dmp
    Filesize

    4KB

  • memory/424-137-0x0000000008FA0000-0x0000000008FA1000-memory.dmp
    Filesize

    4KB

  • memory/424-138-0x0000000009320000-0x0000000009321000-memory.dmp
    Filesize

    4KB

  • memory/2632-117-0x0000000000400000-0x0000000002F6C000-memory.dmp
    Filesize

    43.4MB

  • memory/2632-115-0x00000000030DE000-0x000000000314A000-memory.dmp
    Filesize

    432KB

  • memory/2632-116-0x0000000004CB0000-0x0000000004D7F000-memory.dmp
    Filesize

    828KB