Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    28-12-2020 17:06

General

  • Target

    1de9cd5d00e3b88d8686349a06504ff8.exe

  • Size

    594KB

  • MD5

    1de9cd5d00e3b88d8686349a06504ff8

  • SHA1

    95188cefb84c7ed559a128e02cbd89a540ae1bb7

  • SHA256

    7328f90488ba26b3e9d92cf097f69a4ba7ffca152660bf1e126cc5d1c7a1f835

  • SHA512

    205a1f65c1278206d35010be72e8a92c05d2a1a9412384b71d149999ab1857476c1b4070dd695791bbeed065abb451a31725a3796a4d1d4647ac80d48e4b8407

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.

  • Loads dropped DLL 1 IoCs
  • 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.

  • 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1de9cd5d00e3b88d8686349a06504ff8.exe
    "C:\Users\Admin\AppData\Local\Temp\1de9cd5d00e3b88d8686349a06504ff8.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1008
    • C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe
      bestof.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:980

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

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

    MD5

    ce62304c3eff639e1b2352667a569b8a

    SHA1

    5a5cb774b59befe102fe04e93d9853cfbda3334b

    SHA256

    e8356fad49709d2563d2707dbb09f4f1019e30a0ff5836047a11b3d1d84f4d62

    SHA512

    99d77537f2fade1ca2255c16fcd5d64618f0364f15cddb1b6a48814c9a7e59ccdac72db7f0a1cf4b0eac63180264fd58989e43839373d085ecb42ad2b9fe6f41

  • memory/980-6-0x0000000000000000-mapping.dmp

  • memory/980-8-0x0000000004EAA000-0x0000000004EAB000-memory.dmp

    Filesize

    4KB

  • memory/980-9-0x0000000004F90000-0x0000000004FA1000-memory.dmp

    Filesize

    68KB

  • memory/980-10-0x0000000006A00000-0x0000000006A11000-memory.dmp

    Filesize

    68KB

  • memory/980-11-0x00000000743C0000-0x0000000074AAE000-memory.dmp

    Filesize

    6.9MB

  • memory/980-12-0x0000000006950000-0x0000000006974000-memory.dmp

    Filesize

    144KB

  • memory/980-18-0x0000000006AA0000-0x0000000006AC2000-memory.dmp

    Filesize

    136KB

  • memory/1008-2-0x0000000004E9A000-0x0000000004E9B000-memory.dmp

    Filesize

    4KB

  • memory/1008-3-0x00000000050C0000-0x00000000050D1000-memory.dmp

    Filesize

    68KB

  • memory/1404-4-0x000007FEF8800000-0x000007FEF8A7A000-memory.dmp

    Filesize

    2.5MB