Analysis

  • max time kernel
    109s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    18-06-2022 09:18

General

  • Target

    c3dd01734e71fb98a201ee38d6dffb724ccb79c2041aa.exe

  • Size

    871KB

  • MD5

    a33ffa539d35983e470e67e722b80c38

  • SHA1

    42568a103dfce00691c6177772cb74c1683cad10

  • SHA256

    c3dd01734e71fb98a201ee38d6dffb724ccb79c2041aa5ba68811c9b5693ae86

  • SHA512

    9d4235ea23bfc12aec194dfdbba1c1a05796e40d6f13b2fa43f73e7a544d2bec888e405e0f35270c356e21fa7a35740f0057262528f43061a5649b61d5d1b467

Malware Config

Extracted

Family

redline

Botnet

1

C2

109.107.172.33:37679

Attributes
  • auth_value

    c6427f7951ed507d26d241ad4f19d1a6

Signatures

  • RedLine

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

  • RedLine Payload 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c3dd01734e71fb98a201ee38d6dffb724ccb79c2041aa.exe
    "C:\Users\Admin\AppData\Local\Temp\c3dd01734e71fb98a201ee38d6dffb724ccb79c2041aa.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2736
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Installer_ovl_sig.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Installer_ovl_sig.exe
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1832
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Start-Sleep -Seconds 8;Start-Sleep -Seconds 10;
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2376
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c timeout 37
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3500
        • C:\Windows\SysWOW64\timeout.exe
          timeout 37
          4⤵
          • Delays execution with timeout.exe
          PID:2668
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3332

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Installer_ovl_sig.exe
    Filesize

    362.6MB

    MD5

    7a83d80e4ad9fcd1d47c4327e1717649

    SHA1

    6ec747c0ca8b5d85c30bf0e7708610d74e4b3567

    SHA256

    67a47e7385060b787efeb924f628e755411a5ccd3440447811c3da12b8000251

    SHA512

    a5b6b8b7b69022c5322d1a7480591f8293b66a3f6cbdda37ad79459751980f268ac3e030d6d97152eadbe73ec6344fbdd6aa78e9d7ffcb75c820487ec8182db3

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Installer_ovl_sig.exe
    Filesize

    362.6MB

    MD5

    7a83d80e4ad9fcd1d47c4327e1717649

    SHA1

    6ec747c0ca8b5d85c30bf0e7708610d74e4b3567

    SHA256

    67a47e7385060b787efeb924f628e755411a5ccd3440447811c3da12b8000251

    SHA512

    a5b6b8b7b69022c5322d1a7480591f8293b66a3f6cbdda37ad79459751980f268ac3e030d6d97152eadbe73ec6344fbdd6aa78e9d7ffcb75c820487ec8182db3

  • memory/1832-130-0x0000000000000000-mapping.dmp
  • memory/1832-133-0x0000000000790000-0x00000000007D0000-memory.dmp
    Filesize

    256KB

  • memory/1832-145-0x0000000006430000-0x00000000064C2000-memory.dmp
    Filesize

    584KB

  • memory/2376-142-0x0000000006D40000-0x0000000006D5A000-memory.dmp
    Filesize

    104KB

  • memory/2376-134-0x0000000000000000-mapping.dmp
  • memory/2376-137-0x00000000057F0000-0x0000000005812000-memory.dmp
    Filesize

    136KB

  • memory/2376-138-0x0000000005ED0000-0x0000000005F36000-memory.dmp
    Filesize

    408KB

  • memory/2376-139-0x0000000005FB0000-0x0000000006016000-memory.dmp
    Filesize

    408KB

  • memory/2376-140-0x00000000067C0000-0x00000000067DE000-memory.dmp
    Filesize

    120KB

  • memory/2376-141-0x0000000007E70000-0x00000000084EA000-memory.dmp
    Filesize

    6.5MB

  • memory/2376-135-0x0000000005200000-0x0000000005236000-memory.dmp
    Filesize

    216KB

  • memory/2376-136-0x00000000058A0000-0x0000000005EC8000-memory.dmp
    Filesize

    6.2MB

  • memory/2668-144-0x0000000000000000-mapping.dmp
  • memory/3332-146-0x0000000000000000-mapping.dmp
  • memory/3332-147-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/3332-148-0x00000000058E0000-0x0000000005EF8000-memory.dmp
    Filesize

    6.1MB

  • memory/3332-149-0x0000000005350000-0x0000000005362000-memory.dmp
    Filesize

    72KB

  • memory/3332-150-0x0000000005480000-0x000000000558A000-memory.dmp
    Filesize

    1.0MB

  • memory/3332-151-0x00000000053B0000-0x00000000053EC000-memory.dmp
    Filesize

    240KB

  • memory/3332-152-0x00000000056F0000-0x0000000005766000-memory.dmp
    Filesize

    472KB

  • memory/3332-153-0x00000000064B0000-0x0000000006A54000-memory.dmp
    Filesize

    5.6MB

  • memory/3332-154-0x0000000005F00000-0x0000000005F1E000-memory.dmp
    Filesize

    120KB

  • memory/3332-155-0x0000000006E90000-0x0000000007052000-memory.dmp
    Filesize

    1.8MB

  • memory/3332-156-0x0000000007590000-0x0000000007ABC000-memory.dmp
    Filesize

    5.2MB

  • memory/3500-143-0x0000000000000000-mapping.dmp