Analysis

  • max time kernel
    91s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-08-2022 13:06

General

  • Target

    af477d25b88a0059ec73f7f595437162.exe

  • Size

    163KB

  • MD5

    af477d25b88a0059ec73f7f595437162

  • SHA1

    7b13ff0f521763da35e136b910418f13d0b0fb88

  • SHA256

    fae6e271a14675614d3d808555963b31b8e03bad2400f87f2cd2767628b077e5

  • SHA512

    304ae1af571f3f442b3945969476de810aec38e36affa87577ede7746704f13ae4bee0a870bed9ec1d055b7b34d4879af154eae6ebd9b127a545fea12c809624

Malware Config

Extracted

Family

redline

Botnet

V3Cryptex

C2

194.36.177.60:81

Attributes
  • auth_value

    574bd465901175470b08af8d1a301beb

Signatures

  • RedLine

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

  • RedLine payload 1 IoCs
  • YTStealer

    YTStealer is a malware designed to steal YouTube authentication cookies.

  • YTStealer payload 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\af477d25b88a0059ec73f7f595437162.exe
    "C:\Users\Admin\AppData\Local\Temp\af477d25b88a0059ec73f7f595437162.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3980
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4944
      • C:\Users\Admin\AppData\Local\Temp\22windows_64.exe
        "C:\Users\Admin\AppData\Local\Temp\22windows_64.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:3520
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell "" "Get-WmiObject Win32_PortConnector"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2936

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\22windows_64.exe

    Filesize

    4.0MB

    MD5

    eaaad4f36853f423ee62272e125708ff

    SHA1

    71c045b6a66fef5dd1f20faefbce8df88c890788

    SHA256

    1901ae31080f9b8f7c419290eab011086a00355a0451e9f634f545f771753901

    SHA512

    05292ae056faf45359b62d8feb6926c1144623e997df0893b9a74e423b84761f2ab6e3786c7fc5d7784e3ae9bff7c2e21166cbb7723f6315538357e674587431

  • C:\Users\Admin\AppData\Local\Temp\22windows_64.exe

    Filesize

    4.0MB

    MD5

    eaaad4f36853f423ee62272e125708ff

    SHA1

    71c045b6a66fef5dd1f20faefbce8df88c890788

    SHA256

    1901ae31080f9b8f7c419290eab011086a00355a0451e9f634f545f771753901

    SHA512

    05292ae056faf45359b62d8feb6926c1144623e997df0893b9a74e423b84761f2ab6e3786c7fc5d7784e3ae9bff7c2e21166cbb7723f6315538357e674587431

  • memory/2936-156-0x00007FFBE6D60000-0x00007FFBE7821000-memory.dmp

    Filesize

    10.8MB

  • memory/2936-155-0x00007FFBE6D60000-0x00007FFBE7821000-memory.dmp

    Filesize

    10.8MB

  • memory/2936-154-0x000001F72ABA0000-0x000001F72ABC2000-memory.dmp

    Filesize

    136KB

  • memory/2936-153-0x0000000000000000-mapping.dmp

  • memory/3520-148-0x0000000000000000-mapping.dmp

  • memory/3520-157-0x0000000000960000-0x0000000001772000-memory.dmp

    Filesize

    14.1MB

  • memory/3520-152-0x0000000000960000-0x0000000001772000-memory.dmp

    Filesize

    14.1MB

  • memory/3520-151-0x0000000000960000-0x0000000001772000-memory.dmp

    Filesize

    14.1MB

  • memory/3980-132-0x00000000003C0000-0x00000000003EE000-memory.dmp

    Filesize

    184KB

  • memory/4944-138-0x0000000008010000-0x000000000811A000-memory.dmp

    Filesize

    1.0MB

  • memory/4944-141-0x0000000009150000-0x00000000091E2000-memory.dmp

    Filesize

    584KB

  • memory/4944-145-0x0000000009E90000-0x000000000A052000-memory.dmp

    Filesize

    1.8MB

  • memory/4944-146-0x000000000A590000-0x000000000AABC000-memory.dmp

    Filesize

    5.2MB

  • memory/4944-147-0x000000000A3F0000-0x000000000A440000-memory.dmp

    Filesize

    320KB

  • memory/4944-143-0x00000000092E0000-0x0000000009356000-memory.dmp

    Filesize

    472KB

  • memory/4944-142-0x00000000091F0000-0x0000000009256000-memory.dmp

    Filesize

    408KB

  • memory/4944-144-0x0000000009480000-0x000000000949E000-memory.dmp

    Filesize

    120KB

  • memory/4944-140-0x0000000009610000-0x0000000009BB4000-memory.dmp

    Filesize

    5.6MB

  • memory/4944-139-0x0000000007F40000-0x0000000007F7C000-memory.dmp

    Filesize

    240KB

  • memory/4944-137-0x0000000006620000-0x0000000006632000-memory.dmp

    Filesize

    72KB

  • memory/4944-136-0x0000000006640000-0x0000000006C58000-memory.dmp

    Filesize

    6.1MB

  • memory/4944-135-0x0000000001390000-0x00000000013B4000-memory.dmp

    Filesize

    144KB

  • memory/4944-134-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4944-133-0x0000000000000000-mapping.dmp