Overview

overview

8

Static

static

8

skin.exe

windows7_x64

8

skin.exe

windows10_x64

8

Analysis

  • max time kernel
    150s
  • max time network
    157s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    21-07-2021 21:12

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General

  • Target

    skin.exe

  • Size

    21KB

  • MD5

    0dd3173feb2aad3ff8ea4ec119a88640

  • SHA1

    a032af45d2222e34f19728207b7411a443eb8f72

  • SHA256

    a965c7ee5e32a7763ef8e666f12b96699cad180fdd1b8313afaf7177d61d2527

  • SHA512

    5ddd1a92d8c9fc2b7e611285179af418f1b07dd96ebe0f9879403d2e8dc5b2d0ee4911abfa9c23f57da55e0d17165786b2d4c38d1bc7a2faff1873f0ce807052

Score
8/10
upx

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 IoCs

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

    upx
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\skin.exe
    "C:\Users\Admin\AppData\Local\Temp\skin.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3128
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\skin.exe > nul
      2⤵
        PID:3948
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\skin.exe > nul
        2⤵
          PID:2916
      • C:\Windows\dqvbeq.exe
        C:\Windows\dqvbeq.exe
        1⤵
        • Executes dropped EXE
        • Checks processor information in registry
        PID:1856

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Windows\dqvbeq.exe
        MD5

        0dd3173feb2aad3ff8ea4ec119a88640

        SHA1

        a032af45d2222e34f19728207b7411a443eb8f72

        SHA256

        a965c7ee5e32a7763ef8e666f12b96699cad180fdd1b8313afaf7177d61d2527

        SHA512

        5ddd1a92d8c9fc2b7e611285179af418f1b07dd96ebe0f9879403d2e8dc5b2d0ee4911abfa9c23f57da55e0d17165786b2d4c38d1bc7a2faff1873f0ce807052

        Download Submit
      • C:\Windows\dqvbeq.exe
        MD5

        0dd3173feb2aad3ff8ea4ec119a88640

        SHA1

        a032af45d2222e34f19728207b7411a443eb8f72

        SHA256

        a965c7ee5e32a7763ef8e666f12b96699cad180fdd1b8313afaf7177d61d2527

        SHA512

        5ddd1a92d8c9fc2b7e611285179af418f1b07dd96ebe0f9879403d2e8dc5b2d0ee4911abfa9c23f57da55e0d17165786b2d4c38d1bc7a2faff1873f0ce807052

        Download Submit
      • memory/2916-117-0x0000000000000000-mapping.dmp
        Download
      • memory/3948-116-0x0000000000000000-mapping.dmp
        Download