Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    24-12-2020 21:34

General

  • Target

    SecuriteInfo.com.BehavesLike.Win32.PWSBanker.jc.23769.exe

  • Size

    689KB

  • MD5

    f0092d7c04e468c5b19773b672566637

  • SHA1

    e9e5019301b5ece3d3d350f9be77cd07ff6e31c1

  • SHA256

    e18183cba24914f1855b8e9f371bfe580b48a80fc99d8bcf69e1d8921c638384

  • SHA512

    0e50480a883436ea888f9a97c25b769cfccfe559d41a4b9717c08c5ab603d255c07dc5d88e02e09c944cbd90f87e073c5ef73cd39bb08ea92fce01776649638c

Score
10/10

Malware Config

Signatures

  • RedLine

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

  • RedLine Payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BehavesLike.Win32.PWSBanker.jc.23769.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BehavesLike.Win32.PWSBanker.jc.23769.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2432
    • C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe
      bestof.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3864

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe

    MD5

    a7e9e9cf220846cf4886665f5dca877d

    SHA1

    25316dff51b674a33b4db6aa4187477f1bcfb72f

    SHA256

    f8c01a2d1b187aee1a6b8fc7cb87369cbc920e6c288f53af356287cb3def107e

    SHA512

    b2922db7d114e27eda9d436bcd7bb7c29791fbee25a5807223dd9fc0f6b913b0caacbd0518ce97494f42a8bc2f44b0f33ec1cfb0144b41249589f64b23f266db

  • C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe

    MD5

    a7e9e9cf220846cf4886665f5dca877d

    SHA1

    25316dff51b674a33b4db6aa4187477f1bcfb72f

    SHA256

    f8c01a2d1b187aee1a6b8fc7cb87369cbc920e6c288f53af356287cb3def107e

    SHA512

    b2922db7d114e27eda9d436bcd7bb7c29791fbee25a5807223dd9fc0f6b913b0caacbd0518ce97494f42a8bc2f44b0f33ec1cfb0144b41249589f64b23f266db

  • memory/2432-3-0x0000000005430000-0x0000000005431000-memory.dmp

    Filesize

    4KB

  • memory/2432-2-0x00000000051F4000-0x00000000051F5000-memory.dmp

    Filesize

    4KB

  • memory/3864-10-0x0000000072A90000-0x000000007317E000-memory.dmp

    Filesize

    6.9MB

  • memory/3864-7-0x0000000005481000-0x0000000005482000-memory.dmp

    Filesize

    4KB

  • memory/3864-8-0x0000000005570000-0x0000000005571000-memory.dmp

    Filesize

    4KB

  • memory/3864-9-0x00000000070A0000-0x00000000070A1000-memory.dmp

    Filesize

    4KB

  • memory/3864-4-0x0000000000000000-mapping.dmp

  • memory/3864-11-0x00000000097C0000-0x00000000097E4000-memory.dmp

    Filesize

    144KB

  • memory/3864-12-0x00000000099C0000-0x00000000099C1000-memory.dmp

    Filesize

    4KB

  • memory/3864-13-0x0000000009830000-0x0000000009852000-memory.dmp

    Filesize

    136KB

  • memory/3864-14-0x0000000009EC0000-0x0000000009EC1000-memory.dmp

    Filesize

    4KB

  • memory/3864-15-0x00000000098F0000-0x00000000098F1000-memory.dmp

    Filesize

    4KB

  • memory/3864-16-0x0000000009930000-0x0000000009931000-memory.dmp

    Filesize

    4KB

  • memory/3864-17-0x000000000A4D0000-0x000000000A4D1000-memory.dmp

    Filesize

    4KB

  • memory/3864-18-0x000000000A620000-0x000000000A621000-memory.dmp

    Filesize

    4KB