Analysis

  • max time kernel
    27s
  • max time network
    26s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    01-02-2021 23:14

General

  • Target

    Setup.exe

  • Size

    1.4MB

  • MD5

    5ecdc36b39369e672f034c5cd503a494

  • SHA1

    b05378f6624481c7f6fee55fd0cf91c52ce25425

  • SHA256

    db369dd75a2232803191d273b532cfaf161b154deea4b77b4045ee8bd4c9d890

  • SHA512

    1029be4fb68792c469e85d2111f3be0cd8d5ba4e245a9fc325e9378263ae7176808ea6b407360c31e5926514f7e8385a4112771e1f2aa126f4af107fce9b97fc

Malware Config

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 7 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Setup.exe
    "C:\Users\Admin\AppData\Local\Temp\Setup.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1056
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1768
      • C:\Windows\SysWOW64\timeout.exe
        timeout 1
        3⤵
        • Delays execution with timeout.exe
        PID:1528
    • C:\Users\Admin\AppData\Local\Temp\Setup.exe
      "C:\Users\Admin\AppData\Local\Temp\Setup.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:520

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/520-13-0x0000000000421A4E-mapping.dmp

  • memory/520-12-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/520-15-0x0000000073C60000-0x000000007434E000-memory.dmp

    Filesize

    6.9MB

  • memory/520-16-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/520-18-0x0000000004DE0000-0x0000000004DE1000-memory.dmp

    Filesize

    4KB

  • memory/1056-2-0x0000000075A61000-0x0000000075A63000-memory.dmp

    Filesize

    8KB

  • memory/1056-3-0x0000000073C60000-0x000000007434E000-memory.dmp

    Filesize

    6.9MB

  • memory/1056-4-0x0000000000A30000-0x0000000000A31000-memory.dmp

    Filesize

    4KB

  • memory/1056-6-0x00000000003A0000-0x00000000003D1000-memory.dmp

    Filesize

    196KB

  • memory/1056-7-0x0000000000DF0000-0x0000000000DF1000-memory.dmp

    Filesize

    4KB

  • memory/1528-10-0x0000000000000000-mapping.dmp

  • memory/1768-8-0x0000000000000000-mapping.dmp