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Analysis

  • max time kernel
    133s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    08/01/2024, 05:34

General

  • Target

    4a9211a0d444f60e0d9ad26dce8c270b.exe

  • Size

    1.1MB

  • MD5

    4a9211a0d444f60e0d9ad26dce8c270b

  • SHA1

    b90ae0e6b1a0303e41ab52544ba5a7f484a659ea

  • SHA256

    3bd8e05a0c93d1a5b6b0fb855904f2b1c1ac52e8f78727a0b6045823a5bfd5c9

  • SHA512

    733491734c8c0ab7254f2813dcd5d38046336a1999fa256db49a8ab4c1cffe2fa525d222ef0bc34896f9e10b9e085b6cef98f330308c139c227b271e61915e14

  • SSDEEP

    24576:C5NjLCxr/d3FK64JARnhRsb+gMCduSGfieQr:CD+1K64JQRsbCCduSGHQr

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1573682282:AAEqJZjS75KdrM3hW3WnSL2zr2o3a3lESbk/sendDocument

Signatures

  • AgentTesla

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

  • AgentTesla payload 6 IoCs
  • CustAttr .NET packer 1 IoCs

    Detects CustAttr .NET packer in memory.

  • 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4a9211a0d444f60e0d9ad26dce8c270b.exe
    "C:\Users\Admin\AppData\Local\Temp\4a9211a0d444f60e0d9ad26dce8c270b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:824
    • C:\Users\Admin\AppData\Local\Temp\4a9211a0d444f60e0d9ad26dce8c270b.exe
      "C:\Users\Admin\AppData\Local\Temp\4a9211a0d444f60e0d9ad26dce8c270b.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2612
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mVdnYsF" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC716.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2292

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/824-0-0x0000000000060000-0x000000000017A000-memory.dmp

    Filesize

    1.1MB

  • memory/824-1-0x0000000074E70000-0x000000007555E000-memory.dmp

    Filesize

    6.9MB

  • memory/824-2-0x0000000004810000-0x0000000004850000-memory.dmp

    Filesize

    256KB

  • memory/824-3-0x00000000005B0000-0x00000000005C2000-memory.dmp

    Filesize

    72KB

  • memory/824-4-0x0000000074E70000-0x000000007555E000-memory.dmp

    Filesize

    6.9MB

  • memory/824-5-0x0000000004810000-0x0000000004850000-memory.dmp

    Filesize

    256KB

  • memory/824-6-0x0000000005320000-0x000000000539E000-memory.dmp

    Filesize

    504KB

  • memory/824-7-0x0000000002120000-0x000000000215E000-memory.dmp

    Filesize

    248KB

  • memory/824-25-0x0000000074E70000-0x000000007555E000-memory.dmp

    Filesize

    6.9MB

  • memory/2612-27-0x00000000005A0000-0x00000000005E0000-memory.dmp

    Filesize

    256KB

  • memory/2612-26-0x0000000074E70000-0x000000007555E000-memory.dmp

    Filesize

    6.9MB

  • memory/2612-13-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2612-24-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2612-22-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2612-20-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2612-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2612-17-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2612-16-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2612-15-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2612-28-0x0000000074E70000-0x000000007555E000-memory.dmp

    Filesize

    6.9MB

  • memory/2612-29-0x00000000005A0000-0x00000000005E0000-memory.dmp

    Filesize

    256KB