Analysis

  • max time kernel
    18s
  • max time network
    99s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    12-02-2021 19:15

General

  • Target

    425fa3a5d6422b4f9985ee493aefe613.exe

  • Size

    654KB

  • MD5

    425fa3a5d6422b4f9985ee493aefe613

  • SHA1

    2dfa3009b81ca30a1a73c3459aec5486f56a03d6

  • SHA256

    a766d92b540516fd0e6999039576799146073f3a8d5e3f8a196af2bc725489ad

  • SHA512

    f22cab9f647e226dffc4a37f39ebbee26c716afe746e58b430eb23f5c475d9bbccf297491d626e5100b9d6cd13e60c485115a1e4523ef19fdd02a6d8cb5e0c04

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\425fa3a5d6422b4f9985ee493aefe613.exe
    "C:\Users\Admin\AppData\Local\Temp\425fa3a5d6422b4f9985ee493aefe613.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1124
    • C:\Users\Admin\AppData\Roaming\paperships\noabu.exe
      noabu.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:584

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

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/584-17-0x0000000004A40000-0x0000000004A41000-memory.dmp

    Filesize

    4KB

  • memory/584-30-0x0000000006E10000-0x0000000006E11000-memory.dmp

    Filesize

    4KB

  • memory/584-31-0x0000000006EC0000-0x0000000006EC1000-memory.dmp

    Filesize

    4KB

  • memory/584-18-0x0000000004AE0000-0x0000000004AE1000-memory.dmp

    Filesize

    4KB

  • memory/584-9-0x0000000002320000-0x0000000002321000-memory.dmp

    Filesize

    4KB

  • memory/584-10-0x0000000002430000-0x0000000002431000-memory.dmp

    Filesize

    4KB

  • memory/584-12-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/584-11-0x0000000000610000-0x0000000000647000-memory.dmp

    Filesize

    220KB

  • memory/584-13-0x0000000072DD0000-0x00000000734BE000-memory.dmp

    Filesize

    6.9MB

  • memory/584-14-0x00000000021E0000-0x000000000220E000-memory.dmp

    Filesize

    184KB

  • memory/584-15-0x0000000004B70000-0x0000000004B71000-memory.dmp

    Filesize

    4KB

  • memory/584-16-0x0000000004A10000-0x0000000004A3C000-memory.dmp

    Filesize

    176KB

  • memory/584-32-0x0000000007740000-0x0000000007741000-memory.dmp

    Filesize

    4KB

  • memory/584-6-0x0000000000000000-mapping.dmp

  • memory/584-23-0x0000000005070000-0x0000000005071000-memory.dmp

    Filesize

    4KB

  • memory/584-20-0x0000000004B62000-0x0000000004B63000-memory.dmp

    Filesize

    4KB

  • memory/584-21-0x0000000004B63000-0x0000000004B64000-memory.dmp

    Filesize

    4KB

  • memory/584-22-0x0000000004B64000-0x0000000004B66000-memory.dmp

    Filesize

    8KB

  • memory/584-19-0x0000000004B60000-0x0000000004B61000-memory.dmp

    Filesize

    4KB

  • memory/584-24-0x0000000005710000-0x0000000005711000-memory.dmp

    Filesize

    4KB

  • memory/584-25-0x0000000005730000-0x0000000005731000-memory.dmp

    Filesize

    4KB

  • memory/584-26-0x00000000058A0000-0x00000000058A1000-memory.dmp

    Filesize

    4KB

  • memory/584-27-0x0000000005A20000-0x0000000005A21000-memory.dmp

    Filesize

    4KB

  • memory/584-28-0x00000000065F0000-0x00000000065F1000-memory.dmp

    Filesize

    4KB

  • memory/584-29-0x00000000067D0000-0x00000000067D1000-memory.dmp

    Filesize

    4KB

  • memory/1124-4-0x0000000002130000-0x00000000021FF000-memory.dmp

    Filesize

    828KB

  • memory/1124-5-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

  • memory/1124-2-0x0000000002250000-0x0000000002251000-memory.dmp

    Filesize

    4KB