Analysis

  • max time kernel
    94s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    19-10-2021 05:10

General

  • Target

    SHIPMENT- COMMERCIAL INVOICE.exe

  • Size

    129KB

  • MD5

    2797c66fef6b7a39fa7333cca468eb02

  • SHA1

    7b15eb0f0725320b7f0ef32acd1535255b89bc2b

  • SHA256

    9cca70423e0b22c6ffa39388a06346804a869e392cdf0cbe7ec9905db30bbcf3

  • SHA512

    aa0c9f8f595068a1ef9dcb5273fe69bade86dc2aaab148b1bcdd86321987075b6529bf888c65317c7a492315314101036dbbf1da9275af5597df128031828eb3

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1481923647:AAGiBTAuCt4mxLt_RWPYNlSpw01yplTkoZI/sendDocument

Signatures

  • AgentTesla

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

  • suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

    suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

  • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

  • AgentTesla Payload 5 IoCs
  • Downloads MZ/PE file
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SHIPMENT- COMMERCIAL INVOICE.exe
    "C:\Users\Admin\AppData\Local\Temp\SHIPMENT- COMMERCIAL INVOICE.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1112
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:760

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/760-58-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/760-59-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/760-60-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/760-61-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/760-63-0x0000000000436D1E-mapping.dmp

  • memory/760-62-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/760-64-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/760-66-0x0000000004B80000-0x0000000004B81000-memory.dmp

    Filesize

    4KB

  • memory/1112-53-0x0000000000C80000-0x0000000000C81000-memory.dmp

    Filesize

    4KB

  • memory/1112-55-0x000000001AEA0000-0x000000001AEA2000-memory.dmp

    Filesize

    8KB

  • memory/1112-56-0x00000000004E0000-0x00000000004E2000-memory.dmp

    Filesize

    8KB

  • memory/1112-57-0x00000000009E0000-0x00000000009F5000-memory.dmp

    Filesize

    84KB