Analysis

  • max time kernel
    123s
  • max time network
    125s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    19-10-2021 12:03

General

  • Target

    7e64c1746346909172aca970393683441bb00a17c67dedc1fbe1b20cf13060b5.exe

  • Size

    658KB

  • MD5

    f6506793af600b3a81f6ffb234455491

  • SHA1

    8aea8a3eb94ac6595b2d21f22e395bf5a51aeaa2

  • SHA256

    7e64c1746346909172aca970393683441bb00a17c67dedc1fbe1b20cf13060b5

  • SHA512

    6313393cd6ca3ab2e1a950c3c77a69ac1b7d05e1666596121322e5a0d97dc0d6ff7a34b311fb98b6f2927879edb810a3550fd99916cad9ab3304d5ced54fec56

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\7e64c1746346909172aca970393683441bb00a17c67dedc1fbe1b20cf13060b5.exe
    "C:\Users\Admin\AppData\Local\Temp\7e64c1746346909172aca970393683441bb00a17c67dedc1fbe1b20cf13060b5.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:3608
    • C:\Users\Admin\AppData\Roaming\wowsfree\mopnns.exe
      mopnns.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4472

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/3608-116-0x0000000004BD0000-0x0000000004C9F000-memory.dmp
    Filesize

    828KB

  • memory/3608-117-0x0000000000400000-0x0000000002F6C000-memory.dmp
    Filesize

    43.4MB

  • memory/3608-115-0x000000000313E000-0x00000000031AA000-memory.dmp
    Filesize

    432KB

  • memory/4472-128-0x0000000004F50000-0x0000000004F51000-memory.dmp
    Filesize

    4KB

  • memory/4472-133-0x0000000004F80000-0x0000000004F81000-memory.dmp
    Filesize

    4KB

  • memory/4472-123-0x0000000000400000-0x0000000002DB7000-memory.dmp
    Filesize

    41.7MB

  • memory/4472-124-0x0000000004C10000-0x0000000004C2F000-memory.dmp
    Filesize

    124KB

  • memory/4472-125-0x0000000007430000-0x0000000007431000-memory.dmp
    Filesize

    4KB

  • memory/4472-126-0x0000000004D90000-0x0000000004DAD000-memory.dmp
    Filesize

    116KB

  • memory/4472-127-0x0000000007930000-0x0000000007931000-memory.dmp
    Filesize

    4KB

  • memory/4472-118-0x0000000000000000-mapping.dmp
  • memory/4472-129-0x0000000007F40000-0x0000000007F41000-memory.dmp
    Filesize

    4KB

  • memory/4472-130-0x0000000004E00000-0x0000000004E01000-memory.dmp
    Filesize

    4KB

  • memory/4472-131-0x0000000004E02000-0x0000000004E03000-memory.dmp
    Filesize

    4KB

  • memory/4472-122-0x0000000004990000-0x00000000049C0000-memory.dmp
    Filesize

    192KB

  • memory/4472-134-0x0000000004E04000-0x0000000004E06000-memory.dmp
    Filesize

    8KB

  • memory/4472-132-0x0000000004E03000-0x0000000004E04000-memory.dmp
    Filesize

    4KB

  • memory/4472-135-0x0000000008070000-0x0000000008071000-memory.dmp
    Filesize

    4KB

  • memory/4472-136-0x0000000008C90000-0x0000000008C91000-memory.dmp
    Filesize

    4KB

  • memory/4472-137-0x0000000008E60000-0x0000000008E61000-memory.dmp
    Filesize

    4KB

  • memory/4472-138-0x0000000008F10000-0x0000000008F11000-memory.dmp
    Filesize

    4KB

  • memory/4472-139-0x0000000009120000-0x0000000009121000-memory.dmp
    Filesize

    4KB

  • memory/4472-140-0x00000000091C0000-0x00000000091C1000-memory.dmp
    Filesize

    4KB

  • memory/4472-141-0x0000000009630000-0x0000000009631000-memory.dmp
    Filesize

    4KB