Analysis

  • max time kernel
    47s
  • max time network
    66s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-07-2022 03:49

General

  • Target

    Document.pdf/Document.pdf.scr

  • Size

    700.0MB

  • MD5

    ea7b8236ca438995b2ee7604043fc20c

  • SHA1

    4543d6fbe467c8a17b962e0c19a25fd59d82ded8

  • SHA256

    954e35d28e5938766eb6922e08a4e26d5ed892a1578027374d945efbe0d927e3

  • SHA512

    22a1173def10e7c74fbcef024127f87635a508044c4fbbfa2f4e32b05823b5fc9fa166645851dbaa32c926a735745ca727dc0183a72fd9f3cc222f9f07395a7a

Malware Config

Extracted

Family

redline

Botnet

1

C2

62.204.41.139:25190

Attributes
  • auth_value

    2c239ad7c28c8eab1f9626557bb9457a

Signatures

  • RedLine

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

  • RedLine payload 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
  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Document.pdf\Document.pdf.scr
    "C:\Users\Admin\AppData\Local\Temp\Document.pdf\Document.pdf.scr" /S
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1048
    • 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:2324
    • 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:2152

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1048-130-0x0000000000400000-0x0000000000626000-memory.dmp

    Filesize

    2.1MB

  • memory/1048-131-0x0000000005AF0000-0x0000000005B12000-memory.dmp

    Filesize

    136KB

  • memory/2152-145-0x0000000005410000-0x000000000544C000-memory.dmp

    Filesize

    240KB

  • memory/2152-148-0x00000000063B0000-0x0000000006426000-memory.dmp

    Filesize

    472KB

  • memory/2152-152-0x0000000007FB0000-0x00000000084DC000-memory.dmp

    Filesize

    5.2MB

  • memory/2152-151-0x00000000070B0000-0x0000000007272000-memory.dmp

    Filesize

    1.8MB

  • memory/2152-150-0x0000000007A30000-0x0000000007A80000-memory.dmp

    Filesize

    320KB

  • memory/2152-149-0x0000000006BA0000-0x0000000006BBE000-memory.dmp

    Filesize

    120KB

  • memory/2152-147-0x0000000005F40000-0x0000000005FD2000-memory.dmp

    Filesize

    584KB

  • memory/2152-146-0x00000000064F0000-0x0000000006A94000-memory.dmp

    Filesize

    5.6MB

  • memory/2152-140-0x0000000000000000-mapping.dmp

  • memory/2152-141-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2152-142-0x0000000005920000-0x0000000005F38000-memory.dmp

    Filesize

    6.1MB

  • memory/2152-143-0x00000000053B0000-0x00000000053C2000-memory.dmp

    Filesize

    72KB

  • memory/2152-144-0x00000000054E0000-0x00000000055EA000-memory.dmp

    Filesize

    1.0MB

  • memory/2324-132-0x0000000000000000-mapping.dmp

  • memory/2324-139-0x0000000006140000-0x000000000615A000-memory.dmp

    Filesize

    104KB

  • memory/2324-138-0x00000000072B0000-0x000000000792A000-memory.dmp

    Filesize

    6.5MB

  • memory/2324-133-0x0000000002670000-0x00000000026A6000-memory.dmp

    Filesize

    216KB

  • memory/2324-137-0x0000000005C50000-0x0000000005C6E000-memory.dmp

    Filesize

    120KB

  • memory/2324-136-0x0000000005500000-0x0000000005566000-memory.dmp

    Filesize

    408KB

  • memory/2324-135-0x0000000004E40000-0x0000000004EA6000-memory.dmp

    Filesize

    408KB

  • memory/2324-134-0x0000000004ED0000-0x00000000054F8000-memory.dmp

    Filesize

    6.2MB