Analysis

  • max time kernel
    149s
  • max time network
    8s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    09-07-2020 13:44

General

  • Target

    Paid Invoice.exe

  • Size

    940KB

  • MD5

    bde63b59d82e03cea80de443c6738c6f

  • SHA1

    34e77df4e37a23a8c45f9b9a62a938d756add173

  • SHA256

    b3bf1c568dfbb2a1af09b07eb0a7aff6e2d7addbf3c51e4c6850ebc96afd103e

  • SHA512

    f1e68b492747884786996bec97214fb4a126444dc4928803cecfa7f0a716fa29c822f76eeff41d7b7ca164cde4b24a70e45aecdf8c8b9ff1d1cabd3800b6850d

Malware Config

Signatures

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • UPX packed file 3 IoCs

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\Paid Invoice.exe
    "C:\Users\Admin\AppData\Local\Temp\Paid Invoice.exe"
    1⤵
    • Suspicious behavior: MapViewOfSection
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    PID:1360
    • C:\Users\Admin\AppData\Local\Temp\Paid Invoice.exe
      "C:\Users\Admin\AppData\Local\Temp\Paid Invoice.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: EnumeratesProcesses
      PID:1420

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1420-0-0x0000000000400000-0x00000000004A4000-memory.dmp

    Filesize

    656KB

  • memory/1420-1-0x00000000004A2760-mapping.dmp

  • memory/1420-2-0x0000000000400000-0x00000000004A4000-memory.dmp

    Filesize

    656KB

  • memory/1420-3-0x0000000000400000-0x00000000004A4000-memory.dmp

    Filesize

    656KB

  • memory/1420-4-0x0000000000380000-0x00000000003CC000-memory.dmp

    Filesize

    304KB

  • memory/1420-5-0x0000000001F72000-0x0000000001F73000-memory.dmp

    Filesize

    4KB

  • memory/1420-6-0x0000000000220000-0x0000000000266000-memory.dmp

    Filesize

    280KB