Analysis

  • max time kernel
    143s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    28-12-2020 07:51

General

  • Target

    33d0ce7494b4023ca5536ba4213723b6.exe

  • Size

    595KB

  • MD5

    33d0ce7494b4023ca5536ba4213723b6

  • SHA1

    ecf40633aa434da5ed2dba8beed2360d101829c7

  • SHA256

    e7341f8b61b10ce99efcf7dda7fa6b47dfa9c397c9b2c9f4b1bf09ddcabbfe73

  • SHA512

    87528f245b192fd3f1f8486f79e21da74fc2957809c489ae2ceb440a66e7b13edb465078382442d553f117d28cf37e638d8b96711e4d1eb5c859cf60220e983f

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\33d0ce7494b4023ca5536ba4213723b6.exe
    "C:\Users\Admin\AppData\Local\Temp\33d0ce7494b4023ca5536ba4213723b6.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:4760
    • C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe
      bestof.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3248

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    ce62304c3eff639e1b2352667a569b8a

    SHA1

    5a5cb774b59befe102fe04e93d9853cfbda3334b

    SHA256

    e8356fad49709d2563d2707dbb09f4f1019e30a0ff5836047a11b3d1d84f4d62

    SHA512

    99d77537f2fade1ca2255c16fcd5d64618f0364f15cddb1b6a48814c9a7e59ccdac72db7f0a1cf4b0eac63180264fd58989e43839373d085ecb42ad2b9fe6f41

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

    MD5

    ce62304c3eff639e1b2352667a569b8a

    SHA1

    5a5cb774b59befe102fe04e93d9853cfbda3334b

    SHA256

    e8356fad49709d2563d2707dbb09f4f1019e30a0ff5836047a11b3d1d84f4d62

    SHA512

    99d77537f2fade1ca2255c16fcd5d64618f0364f15cddb1b6a48814c9a7e59ccdac72db7f0a1cf4b0eac63180264fd58989e43839373d085ecb42ad2b9fe6f41

  • memory/3248-10-0x00000000722C0000-0x00000000729AE000-memory.dmp

    Filesize

    6.9MB

  • memory/3248-11-0x0000000006D50000-0x0000000006D74000-memory.dmp

    Filesize

    144KB

  • memory/3248-18-0x000000000A0F0000-0x000000000A0F1000-memory.dmp

    Filesize

    4KB

  • memory/3248-7-0x0000000005007000-0x0000000005008000-memory.dmp

    Filesize

    4KB

  • memory/3248-8-0x0000000005440000-0x0000000005441000-memory.dmp

    Filesize

    4KB

  • memory/3248-9-0x0000000006DD0000-0x0000000006DD1000-memory.dmp

    Filesize

    4KB

  • memory/3248-17-0x0000000009450000-0x0000000009451000-memory.dmp

    Filesize

    4KB

  • memory/3248-4-0x0000000000000000-mapping.dmp

  • memory/3248-12-0x0000000009550000-0x0000000009551000-memory.dmp

    Filesize

    4KB

  • memory/3248-13-0x0000000006EB0000-0x0000000006ED2000-memory.dmp

    Filesize

    136KB

  • memory/3248-14-0x0000000009A50000-0x0000000009A51000-memory.dmp

    Filesize

    4KB

  • memory/3248-15-0x00000000093C0000-0x00000000093C1000-memory.dmp

    Filesize

    4KB

  • memory/3248-16-0x0000000009400000-0x0000000009401000-memory.dmp

    Filesize

    4KB

  • memory/4760-2-0x00000000051DB000-0x00000000051DC000-memory.dmp

    Filesize

    4KB

  • memory/4760-3-0x0000000005610000-0x0000000005611000-memory.dmp

    Filesize

    4KB