Analysis

  • max time kernel
    151s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    28-12-2020 17:04

General

  • Target

    53c599ee6324db60c4b394722d950d3a.exe

  • Size

    594KB

  • MD5

    53c599ee6324db60c4b394722d950d3a

  • SHA1

    7a5d027376db62faecbe44d866a908f3915fc4f1

  • SHA256

    0d828c5af228839b87308f801d19ce5ea0ffc333eee641390c089207f16a96bf

  • SHA512

    b0c24a3a70d3bfa22164e711fe2357f0f7241f46502e2cfc660d7e2b2a76a4ad571f0044c44a1a547fe08b3432575e3eab286ec14cd699f3cac9ef5f1d7f8f9f

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\53c599ee6324db60c4b394722d950d3a.exe
    "C:\Users\Admin\AppData\Local\Temp\53c599ee6324db60c4b394722d950d3a.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1640
    • C:\Users\Admin\AppData\Roaming\leadentop\bestof.exe
      bestof.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1092

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

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/1092-6-0x0000000000000000-mapping.dmp
  • memory/1092-8-0x0000000004F1A000-0x0000000004F1B000-memory.dmp
    Filesize

    4KB

  • memory/1092-9-0x0000000005000000-0x0000000005011000-memory.dmp
    Filesize

    68KB

  • memory/1092-10-0x0000000006A40000-0x0000000006A51000-memory.dmp
    Filesize

    68KB

  • memory/1092-11-0x0000000074400000-0x0000000074AEE000-memory.dmp
    Filesize

    6.9MB

  • memory/1092-12-0x0000000004E70000-0x0000000004E94000-memory.dmp
    Filesize

    144KB

  • memory/1092-13-0x0000000006980000-0x00000000069A2000-memory.dmp
    Filesize

    136KB

  • memory/1576-4-0x000007FEF7B10000-0x000007FEF7D8A000-memory.dmp
    Filesize

    2.5MB

  • memory/1640-3-0x0000000005080000-0x0000000005091000-memory.dmp
    Filesize

    68KB