Analysis

  • max time kernel
    130s
  • max time network
    58s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    27-07-2021 18:30

General

  • Target

    1FINAL REVISED_INVOICE AND PACKING LIST FOR SHIPMENT Email no. M1053 dd. July 20, 2021.exe

  • Size

    908KB

  • MD5

    144141ae2aa727bc13fd74745b7a1315

  • SHA1

    05c9afef4033721637adb0e8ae5bfe2339eab9af

  • SHA256

    39237253378c85888c0281afc0190177c88c3d648089782de5ae1cab7e67ecef

  • SHA512

    52d64205719b12b881008a3aa9fc1a00835ea607f81e61b7a3b27526e4e10123439419512cb113ecfb9e4dcda32b4a703c14f536c55b285b1f6be5e67332d8f5

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://universalinks.net/
  • Port:
    21
  • Username:
    bring4@universalinks.net
  • Password:
    {lafa{u^wEx8

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • Drops file in Drivers directory 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.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1FINAL REVISED_INVOICE AND PACKING LIST FOR SHIPMENT Email no. M1053 dd. July 20, 2021.exe
    "C:\Users\Admin\AppData\Local\Temp\1FINAL REVISED_INVOICE AND PACKING LIST FOR SHIPMENT Email no. M1053 dd. July 20, 2021.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1816
    • C:\Users\Admin\AppData\Local\Temp\1FINAL REVISED_INVOICE AND PACKING LIST FOR SHIPMENT Email no. M1053 dd. July 20, 2021.exe
      "{path}"
      2⤵
      • Drops file in Drivers directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:744

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/744-67-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/744-68-0x000000000043775E-mapping.dmp
  • memory/744-69-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/744-71-0x0000000000470000-0x0000000000471000-memory.dmp
    Filesize

    4KB

  • memory/744-72-0x0000000000471000-0x0000000000472000-memory.dmp
    Filesize

    4KB

  • memory/1816-60-0x0000000000DF0000-0x0000000000DF1000-memory.dmp
    Filesize

    4KB

  • memory/1816-62-0x0000000000D70000-0x0000000000DCF000-memory.dmp
    Filesize

    380KB

  • memory/1816-63-0x0000000000D30000-0x0000000000D31000-memory.dmp
    Filesize

    4KB

  • memory/1816-64-0x00000000003D0000-0x00000000003D2000-memory.dmp
    Filesize

    8KB

  • memory/1816-65-0x0000000005C80000-0x0000000005CFF000-memory.dmp
    Filesize

    508KB

  • memory/1816-66-0x00000000006A0000-0x00000000006D8000-memory.dmp
    Filesize

    224KB