Analysis

  • max time kernel
    148s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 16:32

General

  • Target

    file.exe

  • Size

    394KB

  • MD5

    2a163403e00ba8afbe3c7a2e6df3e2e2

  • SHA1

    404038a796396209580a64a537b57695bbd9b175

  • SHA256

    4a8bba516cd171925cf36969b9e882c1029dbf88383463f9f646145f54fc35ef

  • SHA512

    6a7fdae05a3f2945ef2a8b87c1495dc00a69daa66355cd1009e0b924919f25314b47e541aefd1465c0ca6f2db0dc2b9796b056c1357aa67721ee044446d91187

  • SSDEEP

    6144:QBn12ZAxOykmTM3B8+EszGP2Raz6MlQBvN5JpENjKi7E1HyQlBZIs7Y8X8lkP:g2EcmfDsw2AH+7QYj1HyQJ37Ymj

Malware Config

Signatures

  • AgentTesla

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

  • Executes dropped EXE 2 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 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 SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4876
    • C:\Users\Admin\AppData\Local\Temp\kbddodhxh.exe
      "C:\Users\Admin\AppData\Local\Temp\kbddodhxh.exe" C:\Users\Admin\AppData\Local\Temp\cajpktnk.qa
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:4152
      • C:\Users\Admin\AppData\Local\Temp\kbddodhxh.exe
        "C:\Users\Admin\AppData\Local\Temp\kbddodhxh.exe" C:\Users\Admin\AppData\Local\Temp\cajpktnk.qa
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:1468

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\cajpktnk.qa

    Filesize

    5KB

    MD5

    52d6c758e902d52f73d818e395df4afc

    SHA1

    e947d2b6392657226ca248014dc3933e8ed56007

    SHA256

    a38032f0d1f0dfc6eb4d3b0d898b8faefe486d63a84113ad8f856d130049f910

    SHA512

    2dd0ed8c70a8ace942f48763add368ce411e068ad40ab3524d09edb6a21c074c06404a9b7fd2228cb3253028e63a8885804c5a37b9d9ec3c5ea7a5e584fc2551

  • C:\Users\Admin\AppData\Local\Temp\kbddodhxh.exe

    Filesize

    333KB

    MD5

    8a73408537089a2c75b20e5777a45a3c

    SHA1

    6743c59431668ff81f1c09e2c2820417dea10324

    SHA256

    6058cebe9c8ccfd2c4576dbfbaf254e18e0617d3a42e4b4e054b71105cbdb98b

    SHA512

    87955fcebd7dfe6c2b6517266a7525a6ef71bd215de8404622ff2ebf0145a95b44955f6fee33292a247e32fc2e5f3d0f9063cecff2e68d67b987195788917a06

  • C:\Users\Admin\AppData\Local\Temp\kbddodhxh.exe

    Filesize

    333KB

    MD5

    8a73408537089a2c75b20e5777a45a3c

    SHA1

    6743c59431668ff81f1c09e2c2820417dea10324

    SHA256

    6058cebe9c8ccfd2c4576dbfbaf254e18e0617d3a42e4b4e054b71105cbdb98b

    SHA512

    87955fcebd7dfe6c2b6517266a7525a6ef71bd215de8404622ff2ebf0145a95b44955f6fee33292a247e32fc2e5f3d0f9063cecff2e68d67b987195788917a06

  • C:\Users\Admin\AppData\Local\Temp\kbddodhxh.exe

    Filesize

    333KB

    MD5

    8a73408537089a2c75b20e5777a45a3c

    SHA1

    6743c59431668ff81f1c09e2c2820417dea10324

    SHA256

    6058cebe9c8ccfd2c4576dbfbaf254e18e0617d3a42e4b4e054b71105cbdb98b

    SHA512

    87955fcebd7dfe6c2b6517266a7525a6ef71bd215de8404622ff2ebf0145a95b44955f6fee33292a247e32fc2e5f3d0f9063cecff2e68d67b987195788917a06

  • C:\Users\Admin\AppData\Local\Temp\ymnzmdjt.z

    Filesize

    296KB

    MD5

    287ed1f3735b69389a9c35b08671168f

    SHA1

    7ceeaf5bc178a85b911d8415f220d82e1a347398

    SHA256

    64a65ddf80fa3ebedaa87d12c18366b83650b779f7af15696442f0725bd29d7f

    SHA512

    1d21132e401ef395fbb92bb669dbb0b10a3daaf60e3b09be68d3884ba10901ee9429cf73b4f6c4d1e5f52a0630c547a35be6a38ed480d977e904b99b55240c5a

  • memory/1468-137-0x0000000000000000-mapping.dmp

  • memory/1468-139-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/1468-140-0x0000000004A30000-0x0000000004FD4000-memory.dmp

    Filesize

    5.6MB

  • memory/1468-141-0x0000000004FE0000-0x000000000507C000-memory.dmp

    Filesize

    624KB

  • memory/1468-142-0x00000000059A0000-0x0000000005A06000-memory.dmp

    Filesize

    408KB

  • memory/1468-143-0x0000000006320000-0x0000000006370000-memory.dmp

    Filesize

    320KB

  • memory/1468-144-0x0000000006470000-0x0000000006502000-memory.dmp

    Filesize

    584KB

  • memory/1468-145-0x00000000008B0000-0x00000000008BA000-memory.dmp

    Filesize

    40KB

  • memory/4152-132-0x0000000000000000-mapping.dmp