Analysis

  • max time kernel
    128s
  • max time network
    218s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    11-10-2023 20:06

General

  • Target

    OHMS.exe

  • Size

    1.1MB

  • MD5

    04ea0da6b921494dd73f396ecfe1de5d

  • SHA1

    bb082c74dd2297472ee4855f5400610358a775ed

  • SHA256

    db5eb79f5123b64dee1703eca26c91c3e4caa69b4515293778962c54eaded05d

  • SHA512

    b853ce633f9f6796419324897ab80bc9236ed4ab8447a5d6d7cdb66ee9f0392207fab57c9ce804e01231fa2e8da7b0a20405b27ba026d985e16d4e71776646df

  • SSDEEP

    24576:lz2Vk+YQNRfO2w9aiXjvxNe0O0w8B63L+q1Kj1:laVNYCG2w8ibe07U3L+q

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    kOOdr$f8

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    kOOdr$f8

Signatures

  • AgentTesla

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

  • 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
  • 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
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\OHMS.exe
    "C:\Users\Admin\AppData\Local\Temp\OHMS.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2736
    • C:\Users\Admin\AppData\Local\Temp\OHMS.exe
      "C:\Users\Admin\AppData\Local\Temp\OHMS.exe"
      2⤵
      • 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:2660

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab9475.tmp

    Filesize

    61KB

    MD5

    f3441b8572aae8801c04f3060b550443

    SHA1

    4ef0a35436125d6821831ef36c28ffaf196cda15

    SHA256

    6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

    SHA512

    5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

  • memory/2660-17-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/2660-9-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/2660-12-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/2660-11-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/2660-25-0x0000000004E90000-0x0000000004ED0000-memory.dmp

    Filesize

    256KB

  • memory/2660-24-0x0000000074720000-0x0000000074E0E000-memory.dmp

    Filesize

    6.9MB

  • memory/2660-22-0x0000000004E90000-0x0000000004ED0000-memory.dmp

    Filesize

    256KB

  • memory/2660-21-0x0000000074720000-0x0000000074E0E000-memory.dmp

    Filesize

    6.9MB

  • memory/2660-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2660-10-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/2660-19-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/2660-15-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/2736-3-0x00000000003A0000-0x00000000003AE000-memory.dmp

    Filesize

    56KB

  • memory/2736-2-0x0000000000440000-0x0000000000480000-memory.dmp

    Filesize

    256KB

  • memory/2736-0-0x0000000000A50000-0x0000000000B70000-memory.dmp

    Filesize

    1.1MB

  • memory/2736-1-0x0000000074720000-0x0000000074E0E000-memory.dmp

    Filesize

    6.9MB

  • memory/2736-20-0x0000000074720000-0x0000000074E0E000-memory.dmp

    Filesize

    6.9MB

  • memory/2736-8-0x0000000002010000-0x0000000002056000-memory.dmp

    Filesize

    280KB

  • memory/2736-7-0x0000000000A30000-0x0000000000A36000-memory.dmp

    Filesize

    24KB

  • memory/2736-6-0x0000000007ED0000-0x0000000007F56000-memory.dmp

    Filesize

    536KB

  • memory/2736-5-0x0000000000440000-0x0000000000480000-memory.dmp

    Filesize

    256KB

  • memory/2736-4-0x0000000074720000-0x0000000074E0E000-memory.dmp

    Filesize

    6.9MB