Analysis

  • max time kernel
    51s
  • max time network
    63s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    26-07-2022 20:48

General

  • Target

    Document.pdf.scr

  • Size

    700.0MB

  • MD5

    66313350525d00444319e42f88c9a320

  • SHA1

    5e54b8d600254f67fc03cad68a00a7f2a9d89b77

  • SHA256

    00770e297ae5fdcaa0f235de9bee97309553bc89c955c47141e21f6fabdd55c7

  • SHA512

    a16611adba248ea831a4c25b6d0d46e20793f2f3500a13f29129414756c24ad209118b93e3b435e229e41ab92b01d52bfe31add86c0ed8b6e7469aafff594e2b

Malware Config

Extracted

Family

redline

Botnet

2

C2

62.204.41.139:25190

Attributes
  • auth_value

    f3af3290196bb8fa91c4ccc1d3fcb28f

Signatures

  • RedLine

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

  • RedLine payload 6 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 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.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Document.pdf.scr
    "C:\Users\Admin\AppData\Local\Temp\Document.pdf.scr" /S
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1952
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1336
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1496

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

1
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1336-58-0x0000000000000000-mapping.dmp
  • memory/1336-62-0x000000006E410000-0x000000006E9BB000-memory.dmp
    Filesize

    5.7MB

  • memory/1336-61-0x000000006E410000-0x000000006E9BB000-memory.dmp
    Filesize

    5.7MB

  • memory/1336-60-0x000000006E410000-0x000000006E9BB000-memory.dmp
    Filesize

    5.7MB

  • memory/1496-63-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/1496-64-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/1496-66-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/1496-67-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/1496-68-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/1496-69-0x000000000041AE72-mapping.dmp
  • memory/1496-71-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/1496-73-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/1952-57-0x00000000053E0000-0x0000000005472000-memory.dmp
    Filesize

    584KB

  • memory/1952-56-0x0000000000900000-0x0000000000962000-memory.dmp
    Filesize

    392KB

  • memory/1952-55-0x0000000075211000-0x0000000075213000-memory.dmp
    Filesize

    8KB

  • memory/1952-54-0x0000000000360000-0x0000000000586000-memory.dmp
    Filesize

    2.1MB