Analysis

  • max time kernel
    126s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 00:06

General

  • Target

    New Order Documents.exe

  • Size

    582KB

  • MD5

    a7fc3ba4f95b0c44441dc9bbef395421

  • SHA1

    ab57e90265c7263be4ed81d39ee85f57c3dcbd89

  • SHA256

    a7e0905c5d68fe5f16d13b0df46686024170844c5d68af7b7fb6dcb4fb355e2f

  • SHA512

    163de547e1b847f76d532c266b2b660218b33df07be9bb927db447453c964179a7ecb6c0b44a37402e2f43ff324a563e9cba223da9e1589813ad121d5d59b1df

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.retramtrading.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    @2018sales321

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 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
  • Suspicious use of SetThreadContext 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.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\New Order Documents.exe
    "C:\Users\Admin\AppData\Local\Temp\New Order Documents.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:824
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AdUABZQC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCF9F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:844
    • C:\Users\Admin\AppData\Local\Temp\New Order Documents.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1760

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpCF9F.tmp

    Filesize

    1KB

    MD5

    86350fa4b5e10a7b00a087c82fa14f43

    SHA1

    ad421a9dab56d3fb909de14124fa7319bcf4696e

    SHA256

    0042ff6555f2091c937187188d564ad70c4cda4edec832d5966092266f52f782

    SHA512

    959caddf037b5ad37caadd0a5667af08769c33cbcb0ec16c50f9c0549fddb5cde6cdcc71910d694332ce05d2b7b6b506d42d1aa349e24f2044bfb4dbe0d5c463

  • memory/824-54-0x0000000000CE0000-0x0000000000D78000-memory.dmp

    Filesize

    608KB

  • memory/824-55-0x0000000000370000-0x0000000000378000-memory.dmp

    Filesize

    32KB

  • memory/824-56-0x0000000000B80000-0x0000000000BD4000-memory.dmp

    Filesize

    336KB

  • memory/824-57-0x0000000075741000-0x0000000075743000-memory.dmp

    Filesize

    8KB

  • memory/844-58-0x0000000000000000-mapping.dmp

  • memory/1760-60-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1760-61-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1760-63-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1760-64-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1760-65-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1760-66-0x000000000044705E-mapping.dmp

  • memory/1760-68-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1760-70-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB