Analysis

  • max time kernel
    126s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-02-2023 14:12

General

  • Target

    871aba5cef884e6cb532f1023c47f2e6fdf894bffb7d171e13781ce7957b8ab0.exe

  • Size

    1.4MB

  • MD5

    65edcfa090755e408992785778955dce

  • SHA1

    6eff23db579671e283798e729a9b57614612b6d9

  • SHA256

    871aba5cef884e6cb532f1023c47f2e6fdf894bffb7d171e13781ce7957b8ab0

  • SHA512

    f8325f5a27318da052d81a67f1b1f552dc1932577ef932e273c7ae61974e595881f305721fe92fedcaf32190ef28c7a90520303c4410e1f0d44701b6b861a837

  • SSDEEP

    24576:eSUqKIqZHzOdysVKr+nXF1CutCtbDpKYxOBvwaWGAOpYyovkirp:cpHzOdysVKrG1KpKYxn60Mi

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.clipjoint.co.nz
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    melandloz64

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect rhadamanthys stealer shellcode 2 IoCs
  • Rhadamanthys

    Rhadamanthys is an info stealer written in C++ first seen in August 2022.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 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.

  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 56 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\system32\taskhostw.exe
    taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
    1⤵
      PID:2808
      • C:\Windows\SysWOW64\fontview.exe
        "C:\Windows\SYSWOW64\fontview.exe"
        2⤵
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Checks SCSI registry key(s)
        • Suspicious use of AdjustPrivilegeToken
        PID:4144
    • C:\Users\Admin\AppData\Local\Temp\871aba5cef884e6cb532f1023c47f2e6fdf894bffb7d171e13781ce7957b8ab0.exe
      "C:\Users\Admin\AppData\Local\Temp\871aba5cef884e6cb532f1023c47f2e6fdf894bffb7d171e13781ce7957b8ab0.exe"
      1⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2212
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /create /tn COMSurrogate /f /sc onlogon /rl highest /tr "C:\Users\Admin\Lica sasebi pab vegoxoke gorida\sasa dogolaf legifema yoyi vogot veg recaquik nivev.exe"
        2⤵
        • Creates scheduled task(s)
        PID:1748
      • C:\Users\Admin\Lica sasebi pab vegoxoke gorida\sasa dogolaf legifema yoyi vogot veg recaquik nivev.exe
        "C:\Users\Admin\Lica sasebi pab vegoxoke gorida\sasa dogolaf legifema yoyi vogot veg recaquik nivev.exe"
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4576
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngentask.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngentask.exe"
          3⤵
          • Accesses Microsoft Outlook profiles
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:4016
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4576 -s 1272
          3⤵
          • Program crash
          PID:4344
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c chcp 65001 && ping 127.0.0.1 && DEL /F /S /Q /A "C:\Users\Admin\AppData\Local\Temp\871aba5cef884e6cb532f1023c47f2e6fdf894bffb7d171e13781ce7957b8ab0.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3388
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          3⤵
            PID:3348
          • C:\Windows\SysWOW64\PING.EXE
            ping 127.0.0.1
            3⤵
            • Runs ping.exe
            PID:268
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 388 -p 4576 -ip 4576
        1⤵
          PID:4560

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Execution

        Scheduled Task

        1
        T1053

        Persistence

        Scheduled Task

        1
        T1053

        Privilege Escalation

        Scheduled Task

        1
        T1053

        Discovery

        Query Registry

        2
        T1012

        System Information Discovery

        3
        T1082

        Peripheral Device Discovery

        1
        T1120

        Remote System Discovery

        1
        T1018

        Collection

        Email Collection

        1
        T1114

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\240558031.dll
          Filesize

          335KB

          MD5

          f8d36091acfdc104254d90a91588d569

          SHA1

          3ac92b58e3378a6d88349cf8549ba8334a90b608

          SHA256

          7765a84991c1fc872740ffbcb1bc0563e4edc31fcf02ce9341fa1f316c6efdc4

          SHA512

          fc2f2bac554997593468cef0fcbd6c0b24e00852ba199b9cedb4c5c4af52eb6874e15e346953d2f47c31b05f18eec1f0865495187be943cd1fcf27ed4fb8a5f1

        • C:\Users\Admin\Lica sasebi pab vegoxoke gorida\sasa dogolaf legifema yoyi vogot veg recaquik nivev.exe
          Filesize

          775.4MB

          MD5

          18e73fdac527c624908e1cfa1fc6a6a5

          SHA1

          de33ed698b2e30a43085bee3c0f3f67d67b39247

          SHA256

          9cf8f0d549c5c2dd31591d3ee1bfd5c0997e571a53cfdd67df820228c4c47fb1

          SHA512

          220e44f529f43f75b03b546e72f3d5812b2130ae4af6164a5e0d52e84e6ebcbe9d850176269d1aaefeb0640fea5101c9b829d9475db37d1832638e1a5b71c2ea

        • C:\Users\Admin\Lica sasebi pab vegoxoke gorida\sasa dogolaf legifema yoyi vogot veg recaquik nivev.exe
          Filesize

          775.4MB

          MD5

          18e73fdac527c624908e1cfa1fc6a6a5

          SHA1

          de33ed698b2e30a43085bee3c0f3f67d67b39247

          SHA256

          9cf8f0d549c5c2dd31591d3ee1bfd5c0997e571a53cfdd67df820228c4c47fb1

          SHA512

          220e44f529f43f75b03b546e72f3d5812b2130ae4af6164a5e0d52e84e6ebcbe9d850176269d1aaefeb0640fea5101c9b829d9475db37d1832638e1a5b71c2ea

        • memory/268-140-0x0000000000000000-mapping.dmp
        • memory/1748-133-0x0000000000000000-mapping.dmp
        • memory/2212-132-0x0000000000260000-0x00000000003C7000-memory.dmp
          Filesize

          1.4MB

        • memory/2212-138-0x0000000000260000-0x00000000003C7000-memory.dmp
          Filesize

          1.4MB

        • memory/3348-139-0x0000000000000000-mapping.dmp
        • memory/3388-137-0x0000000000000000-mapping.dmp
        • memory/4016-155-0x00000000064A0000-0x0000000006532000-memory.dmp
          Filesize

          584KB

        • memory/4016-153-0x0000000004FC0000-0x0000000005026000-memory.dmp
          Filesize

          408KB

        • memory/4016-165-0x00000000068D0000-0x000000000696C000-memory.dmp
          Filesize

          624KB

        • memory/4016-144-0x0000000000000000-mapping.dmp
        • memory/4016-145-0x0000000000400000-0x0000000000430000-memory.dmp
          Filesize

          192KB

        • memory/4016-147-0x0000000000400000-0x0000000000430000-memory.dmp
          Filesize

          192KB

        • memory/4016-164-0x0000000006A00000-0x0000000006BC2000-memory.dmp
          Filesize

          1.8MB

        • memory/4016-163-0x00000000067E0000-0x0000000006830000-memory.dmp
          Filesize

          320KB

        • memory/4016-159-0x0000000006660000-0x000000000666A000-memory.dmp
          Filesize

          40KB

        • memory/4016-151-0x0000000005570000-0x0000000005B14000-memory.dmp
          Filesize

          5.6MB

        • memory/4144-161-0x0000000000C10000-0x0000000000C45000-memory.dmp
          Filesize

          212KB

        • memory/4144-150-0x0000000000000000-mapping.dmp
        • memory/4144-154-0x0000000000EE5000-0x0000000000EE7000-memory.dmp
          Filesize

          8KB

        • memory/4144-149-0x0000000000C10000-0x0000000000C45000-memory.dmp
          Filesize

          212KB

        • memory/4144-157-0x0000000000EE5000-0x0000000000EE7000-memory.dmp
          Filesize

          8KB

        • memory/4144-162-0x0000000000E60000-0x0000000000E7D000-memory.dmp
          Filesize

          116KB

        • memory/4144-158-0x0000000000E60000-0x0000000000E7D000-memory.dmp
          Filesize

          116KB

        • memory/4144-152-0x0000000000C10000-0x0000000000C45000-memory.dmp
          Filesize

          212KB

        • memory/4144-160-0x0000000002D80000-0x0000000003D80000-memory.dmp
          Filesize

          16.0MB

        • memory/4576-142-0x000000000F6A0000-0x000000000F875000-memory.dmp
          Filesize

          1.8MB

        • memory/4576-134-0x0000000000000000-mapping.dmp
        • memory/4576-156-0x000000000F6A0000-0x000000000F875000-memory.dmp
          Filesize

          1.8MB

        • memory/4576-141-0x0000000000AD0000-0x0000000000C37000-memory.dmp
          Filesize

          1.4MB

        • memory/4576-143-0x000000000F6A0000-0x000000000F875000-memory.dmp
          Filesize

          1.8MB

        • memory/4576-166-0x0000000000AD0000-0x0000000000C37000-memory.dmp
          Filesize

          1.4MB