Analysis

  • max time kernel
    35s
  • max time network
    104s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    30-03-2021 07:02

General

  • Target

    98a3d9f0f4656c52ec828bb1105a5482.exe

  • Size

    694KB

  • MD5

    98a3d9f0f4656c52ec828bb1105a5482

  • SHA1

    e466a2c0c971a964890f9df38e65cee1b879fe36

  • SHA256

    d2116546b067294f8673d0f68ab47af0d86a412537dde8c0e6386ba08a909dd6

  • SHA512

    451deb05623375f23ae349e896c244cb8aaffa717b6f2a146f95b007d7ac6dada83193f9317c1560f4c045cf7521b6ce988a789f7e5a78a50bc40df76a26490f

Malware Config

Extracted

Family

cryptbot

C2

cinbcp22.top

morwze02.top

Attributes
  • payload_url

    http://binasd03.top/download.php?file=lv.exe

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • CryptBot 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.

  • 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 use of FindShellTrayWindow 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\98a3d9f0f4656c52ec828bb1105a5482.exe
    "C:\Users\Admin\AppData\Local\Temp\98a3d9f0f4656c52ec828bb1105a5482.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of FindShellTrayWindow
    PID:4760

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/4760-2-0x0000000001CD0000-0x0000000001CD1000-memory.dmp

    Filesize

    4KB

  • memory/4760-3-0x0000000001CD0000-0x0000000001DAF000-memory.dmp

    Filesize

    892KB

  • memory/4760-4-0x0000000000400000-0x00000000004E3000-memory.dmp

    Filesize

    908KB