Analysis

  • max time kernel
    135s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    26-02-2021 18:12

General

  • Target

    Complaint About Your Company.exe

  • Size

    820KB

  • MD5

    ad8e516a03685e3bbf2cfde99b0a06a9

  • SHA1

    913240ddb22665b0e244cc69eb22aaa8fc3d49f5

  • SHA256

    6d84f67c5ce01feb377d1e1bb8959251aac2e23fac027029e7d3a8548a3300a5

  • SHA512

    eb5dc5763722192f4f0d913bc1d77869470e56b1592c3de9a91ddcf4af8a68373aa1877d5a9a01421f0ba2766266cd8a1e15e7abda14bad912be6ebe1a30b311

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://files.000webhost.com/
  • Port:
    21
  • Username:
    zinco
  • Password:
    computer147

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Complaint About Your Company.exe
    "C:\Users\Admin\AppData\Local\Temp\Complaint About Your Company.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DqKHyr" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA7F3.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2008
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:580

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpA7F3.tmp

    MD5

    2f5006bbbd3bc9b74b52f3552411f77e

    SHA1

    484d5dbdd541291ae09fa22cca252296c9742545

    SHA256

    83154ddbe7f32a42f8d915ee2443bd5364d9ac25d2361fc1cb31c77c59253304

    SHA512

    8b486ef97d23908d535ae72357c12661708e0118fcf55d439b570b9de00d6a0cc6fd55ca2b667302a42e8a977986808afd56e1344db0a75db0d868ea68f087f2

  • memory/580-12-0x0000000074230000-0x000000007491E000-memory.dmp

    Filesize

    6.9MB

  • memory/580-10-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/580-11-0x00000000004375DE-mapping.dmp

  • memory/580-13-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/580-15-0x0000000000720000-0x0000000000721000-memory.dmp

    Filesize

    4KB

  • memory/580-16-0x0000000000721000-0x0000000000722000-memory.dmp

    Filesize

    4KB

  • memory/2008-8-0x0000000000000000-mapping.dmp

  • memory/2044-5-0x0000000004CE0000-0x0000000004CE1000-memory.dmp

    Filesize

    4KB

  • memory/2044-6-0x00000000004C0000-0x00000000004CB000-memory.dmp

    Filesize

    44KB

  • memory/2044-7-0x0000000005AD0000-0x0000000005B33000-memory.dmp

    Filesize

    396KB

  • memory/2044-3-0x0000000000C30000-0x0000000000C31000-memory.dmp

    Filesize

    4KB

  • memory/2044-2-0x0000000074230000-0x000000007491E000-memory.dmp

    Filesize

    6.9MB