Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    29-11-2021 19:17

General

  • Target

    9877b157ae0bcd3feb87ccfef4253491.exe

  • Size

    396KB

  • MD5

    9877b157ae0bcd3feb87ccfef4253491

  • SHA1

    a003d7ced4aa5ea3001439b6e2cd8ae9c96d1703

  • SHA256

    d18d56376c20fdc8504567c79055654278da9bfbea33aef2159af126247c5ced

  • SHA512

    2067a09d2be11bb006cc6a2c4a509e1ded3491c06fab8a81d3d3eb67420fba1fca4853d819eec1d4fad9d2553c66c87217a2ddb3e270476ee3f9e375132215bd

Malware Config

Extracted

Family

redline

C2

185.191.215.179:29003

Signatures

  • RedLine

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

  • RedLine Payload 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Runs ping.exe 1 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 60 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9877b157ae0bcd3feb87ccfef4253491.exe
    "C:\Users\Admin\AppData\Local\Temp\9877b157ae0bcd3feb87ccfef4253491.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1284
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C ping youtube.com
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1632
      • C:\Windows\SysWOW64\PING.EXE
        ping youtube.com
        3⤵
        • Runs ping.exe
        PID:792
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C ping facebook.com
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1820
      • C:\Windows\SysWOW64\PING.EXE
        ping facebook.com
        3⤵
        • Runs ping.exe
        PID:832
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C ping youtube.com
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1868
      • C:\Windows\SysWOW64\PING.EXE
        ping youtube.com
        3⤵
        • Runs ping.exe
        PID:1104
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C ping facebook.com
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1144
      • C:\Windows\SysWOW64\PING.EXE
        ping facebook.com
        3⤵
        • Runs ping.exe
        PID:296
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C ping youtube.com
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1876
      • C:\Windows\SysWOW64\PING.EXE
        ping youtube.com
        3⤵
        • Runs ping.exe
        PID:1056
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C ping facebook.com
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:860
      • C:\Windows\SysWOW64\PING.EXE
        ping facebook.com
        3⤵
        • Runs ping.exe
        PID:1156
    • C:\Users\Admin\AppData\Local\Temp\9877b157ae0bcd3feb87ccfef4253491.exe
      C:\Users\Admin\AppData\Local\Temp\9877b157ae0bcd3feb87ccfef4253491.exe
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2036

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Remote System Discovery

1
T1018

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/296-65-0x0000000000000000-mapping.dmp
  • memory/792-59-0x0000000000000000-mapping.dmp
  • memory/832-61-0x0000000000000000-mapping.dmp
  • memory/860-68-0x0000000000000000-mapping.dmp
  • memory/1056-67-0x0000000000000000-mapping.dmp
  • memory/1104-63-0x0000000000000000-mapping.dmp
  • memory/1144-64-0x0000000000000000-mapping.dmp
  • memory/1156-69-0x0000000000000000-mapping.dmp
  • memory/1284-55-0x0000000000CE0000-0x0000000000CE1000-memory.dmp
    Filesize

    4KB

  • memory/1284-57-0x0000000075971000-0x0000000075973000-memory.dmp
    Filesize

    8KB

  • memory/1284-72-0x0000000004A10000-0x0000000004A28000-memory.dmp
    Filesize

    96KB

  • memory/1284-71-0x0000000004810000-0x000000000485A000-memory.dmp
    Filesize

    296KB

  • memory/1284-70-0x0000000005640000-0x0000000005641000-memory.dmp
    Filesize

    4KB

  • memory/1632-58-0x0000000000000000-mapping.dmp
  • memory/1820-60-0x0000000000000000-mapping.dmp
  • memory/1868-62-0x0000000000000000-mapping.dmp
  • memory/1876-66-0x0000000000000000-mapping.dmp
  • memory/2036-73-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/2036-74-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/2036-75-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/2036-76-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/2036-77-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/2036-78-0x0000000000418EEA-mapping.dmp
  • memory/2036-79-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/2036-81-0x0000000004B80000-0x0000000004B81000-memory.dmp
    Filesize

    4KB