Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    28-12-2020 07:50

General

  • Target

    7e627a2036d185712606530fe642cae3.exe

  • Size

    594KB

  • MD5

    7e627a2036d185712606530fe642cae3

  • SHA1

    c209888e5964ecce9d0f72acd68d33cb27d78f5f

  • SHA256

    0d7238358839c038b9a3363cb2d82c029178c7133c85531e91e1b5edeef265c6

  • SHA512

    fbb83d7fdaac6340697149815d228ad2c31e5b1b4b302c433062a5cd93281db5f45b1db36025be5b2f94f5d6ecdebfb0101a81f0487fd3609848abb4df75ff82

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\7e627a2036d185712606530fe642cae3.exe
    "C:\Users\Admin\AppData\Local\Temp\7e627a2036d185712606530fe642cae3.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:652
    • C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe
      bestof.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2636

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/652-3-0x0000000005510000-0x0000000005511000-memory.dmp

    Filesize

    4KB

  • memory/652-2-0x000000000507B000-0x000000000507C000-memory.dmp

    Filesize

    4KB

  • memory/2636-10-0x0000000072EE0000-0x00000000735CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2636-7-0x0000000005017000-0x0000000005018000-memory.dmp

    Filesize

    4KB

  • memory/2636-8-0x0000000005480000-0x0000000005481000-memory.dmp

    Filesize

    4KB

  • memory/2636-9-0x0000000006D00000-0x0000000006D01000-memory.dmp

    Filesize

    4KB

  • memory/2636-4-0x0000000000000000-mapping.dmp

  • memory/2636-11-0x0000000006C60000-0x0000000006C84000-memory.dmp

    Filesize

    144KB

  • memory/2636-12-0x0000000009560000-0x0000000009561000-memory.dmp

    Filesize

    4KB

  • memory/2636-13-0x0000000006F00000-0x0000000006F22000-memory.dmp

    Filesize

    136KB

  • memory/2636-14-0x0000000009A60000-0x0000000009A61000-memory.dmp

    Filesize

    4KB

  • memory/2636-15-0x0000000006FB0000-0x0000000006FB1000-memory.dmp

    Filesize

    4KB

  • memory/2636-16-0x000000000A070000-0x000000000A071000-memory.dmp

    Filesize

    4KB

  • memory/2636-17-0x000000000A0B0000-0x000000000A0B1000-memory.dmp

    Filesize

    4KB

  • memory/2636-18-0x000000000A230000-0x000000000A231000-memory.dmp

    Filesize

    4KB