Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 13:06

General

  • Target

    rTTSWIFT_8374783.exe

  • Size

    1016KB

  • MD5

    3f01bf70d956ec19a92b35f7a9c96c23

  • SHA1

    acb67c8df40ee9369cd18630282f4706a2bf2623

  • SHA256

    c2901aebb7af70fd74d9812932c5c7028711828696b3aa0f563cb6dfc82d22b9

  • SHA512

    37b9a414aca0c0b05a916094ae72faee8307f1568888d5ab65a84fd75332cd0142b34e1b9f7b4dcd41bce3d9c414669ad2c12e90a3ab7fa9ff2906fc6294cb16

  • SSDEEP

    24576:wAHnh+eWsN3skA4RV1Hom2KXMmHaFLfy4e33w5:nh+ZkldoPK8YaFLfW3G

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.fosna.net
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    (=8fPSH$KO_!

Signatures

  • AgentTesla

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

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\rTTSWIFT_8374783.exe
    "C:\Users\Admin\AppData\Local\Temp\rTTSWIFT_8374783.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1612
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Users\Admin\AppData\Local\Temp\rTTSWIFT_8374783.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4728
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1612 -s 692
      2⤵
      • Program crash
      PID:1184
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1612 -ip 1612
    1⤵
      PID:3588

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1612-10-0x00000000015C0000-0x00000000015C4000-memory.dmp

      Filesize

      16KB

    • memory/4728-11-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/4728-12-0x000000007434E000-0x000000007434F000-memory.dmp

      Filesize

      4KB

    • memory/4728-13-0x0000000005830000-0x0000000005DD4000-memory.dmp

      Filesize

      5.6MB

    • memory/4728-14-0x00000000052F0000-0x0000000005356000-memory.dmp

      Filesize

      408KB

    • memory/4728-15-0x0000000074340000-0x0000000074AF0000-memory.dmp

      Filesize

      7.7MB

    • memory/4728-16-0x00000000065A0000-0x00000000065F0000-memory.dmp

      Filesize

      320KB

    • memory/4728-17-0x0000000006690000-0x0000000006722000-memory.dmp

      Filesize

      584KB

    • memory/4728-18-0x0000000006620000-0x000000000662A000-memory.dmp

      Filesize

      40KB

    • memory/4728-19-0x000000007434E000-0x000000007434F000-memory.dmp

      Filesize

      4KB

    • memory/4728-20-0x0000000074340000-0x0000000074AF0000-memory.dmp

      Filesize

      7.7MB