Analysis

  • max time kernel
    61s
  • max time network
    123s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    12-02-2021 19:13

General

  • Target

    9504bbd270464fd0a401aac457a5bd3d.exe

  • Size

    654KB

  • MD5

    9504bbd270464fd0a401aac457a5bd3d

  • SHA1

    2382d8c492db27b62539b8d15a377845473c1b7b

  • SHA256

    fc9c54b72323f2492fb6e22ce77628b7af0b349b6cb6030d55d1c40b35199e91

  • SHA512

    935457e8515f740545bccb3857b5a6e8baa8461dcc29a85e2db91a4d4b31cbdefd458fbb1eea22fd4c9ce565fbce522759b2a17d4ac5e694f935143f68524271

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
  • 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.

  • 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 behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9504bbd270464fd0a401aac457a5bd3d.exe
    "C:\Users\Admin\AppData\Local\Temp\9504bbd270464fd0a401aac457a5bd3d.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:4680
    • C:\Users\Admin\AppData\Roaming\paperships\noabu.exe
      noabu.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4244

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\paperships\noabu.exe

    MD5

    b193f6ad44a0e3a55782e365ad1b0082

    SHA1

    a3187be12fe673b70640096db4a62a52923a5dbb

    SHA256

    1ad35ecffd662312ffa048ae8b85344267ebdd6d5c3be375c99b84c57d3ef117

    SHA512

    59722aafb85543225a17743cefaec55128813569cf898554ce8b9ef818a3eba564248184e656db4d7333a5923e6c5bed56da6eb6626ecc31a9d66dbb0b2a4820

  • C:\Users\Admin\AppData\Roaming\paperships\noabu.exe

    MD5

    b193f6ad44a0e3a55782e365ad1b0082

    SHA1

    a3187be12fe673b70640096db4a62a52923a5dbb

    SHA256

    1ad35ecffd662312ffa048ae8b85344267ebdd6d5c3be375c99b84c57d3ef117

    SHA512

    59722aafb85543225a17743cefaec55128813569cf898554ce8b9ef818a3eba564248184e656db4d7333a5923e6c5bed56da6eb6626ecc31a9d66dbb0b2a4820

  • memory/4244-16-0x0000000004A60000-0x0000000004A61000-memory.dmp

    Filesize

    4KB

  • memory/4244-8-0x0000000002180000-0x0000000002181000-memory.dmp

    Filesize

    4KB

  • memory/4244-18-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/4244-32-0x00000000076F0000-0x00000000076F1000-memory.dmp

    Filesize

    4KB

  • memory/4244-19-0x0000000004A90000-0x0000000004A91000-memory.dmp

    Filesize

    4KB

  • memory/4244-9-0x0000000002180000-0x0000000002181000-memory.dmp

    Filesize

    4KB

  • memory/4244-10-0x0000000002470000-0x0000000002471000-memory.dmp

    Filesize

    4KB

  • memory/4244-11-0x0000000072AC0000-0x00000000731AE000-memory.dmp

    Filesize

    6.9MB

  • memory/4244-12-0x00000000049B0000-0x00000000049DE000-memory.dmp

    Filesize

    184KB

  • memory/4244-13-0x0000000004AA0000-0x0000000004AA1000-memory.dmp

    Filesize

    4KB

  • memory/4244-14-0x0000000004A20000-0x0000000004A4C000-memory.dmp

    Filesize

    176KB

  • memory/4244-20-0x0000000004A92000-0x0000000004A93000-memory.dmp

    Filesize

    4KB

  • memory/4244-31-0x0000000006EC0000-0x0000000006EC1000-memory.dmp

    Filesize

    4KB

  • memory/4244-17-0x0000000000560000-0x0000000000597000-memory.dmp

    Filesize

    220KB

  • memory/4244-5-0x0000000000000000-mapping.dmp

  • memory/4244-30-0x0000000006E10000-0x0000000006E11000-memory.dmp

    Filesize

    4KB

  • memory/4244-15-0x0000000004FA0000-0x0000000004FA1000-memory.dmp

    Filesize

    4KB

  • memory/4244-21-0x0000000004A93000-0x0000000004A94000-memory.dmp

    Filesize

    4KB

  • memory/4244-22-0x0000000004A94000-0x0000000004A96000-memory.dmp

    Filesize

    8KB

  • memory/4244-23-0x0000000005070000-0x0000000005071000-memory.dmp

    Filesize

    4KB

  • memory/4244-24-0x0000000005710000-0x0000000005711000-memory.dmp

    Filesize

    4KB

  • memory/4244-25-0x0000000005730000-0x0000000005731000-memory.dmp

    Filesize

    4KB

  • memory/4244-26-0x00000000058A0000-0x00000000058A1000-memory.dmp

    Filesize

    4KB

  • memory/4244-27-0x0000000005A20000-0x0000000005A21000-memory.dmp

    Filesize

    4KB

  • memory/4244-28-0x00000000065F0000-0x00000000065F1000-memory.dmp

    Filesize

    4KB

  • memory/4244-29-0x00000000067D0000-0x00000000067D1000-memory.dmp

    Filesize

    4KB

  • memory/4680-3-0x0000000002260000-0x000000000232F000-memory.dmp

    Filesize

    828KB

  • memory/4680-2-0x0000000002260000-0x0000000002261000-memory.dmp

    Filesize

    4KB

  • memory/4680-4-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB