Analysis

  • max time kernel
    151s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    28-12-2020 17:06

General

  • Target

    860ba1abb7492b10512445c13994b685.exe

  • Size

    595KB

  • MD5

    860ba1abb7492b10512445c13994b685

  • SHA1

    2eaedfa31c5906b83696d9d966285f23d1512a0b

  • SHA256

    8ec19d4e2e49adcd9c4b08b769f3d8cab2708d7cba29dc47eb85673b78f35103

  • SHA512

    89e86190c4c30de5d0a49ca11c9dd73f87ac9216ed8f92d5120e808a8c99f1e9b0863a0418aad0adde02d636b7bc85a22f45130cbf2da2cb41d592e227bc8204

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\860ba1abb7492b10512445c13994b685.exe
    "C:\Users\Admin\AppData\Local\Temp\860ba1abb7492b10512445c13994b685.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1208
    • C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe
      bestof.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1256

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/1208-2-0x0000000000309000-0x000000000031A000-memory.dmp

    Filesize

    68KB

  • memory/1208-3-0x0000000005000000-0x0000000005011000-memory.dmp

    Filesize

    68KB

  • memory/1256-10-0x0000000000000000-mapping.dmp

  • memory/1256-12-0x0000000004E5A000-0x0000000004E5B000-memory.dmp

    Filesize

    4KB

  • memory/1256-13-0x0000000005110000-0x0000000005121000-memory.dmp

    Filesize

    68KB

  • memory/1256-14-0x0000000006880000-0x0000000006891000-memory.dmp

    Filesize

    68KB

  • memory/1256-15-0x0000000073ED0000-0x00000000745BE000-memory.dmp

    Filesize

    6.9MB

  • memory/1256-16-0x00000000050D0000-0x00000000050F4000-memory.dmp

    Filesize

    144KB

  • memory/1256-17-0x00000000069C0000-0x00000000069E2000-memory.dmp

    Filesize

    136KB

  • memory/1700-4-0x000007FEF7900000-0x000007FEF7B7A000-memory.dmp

    Filesize

    2.5MB