Analysis

  • max time kernel
    279s
  • max time network
    300s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    27-09-2021 00:41

General

  • Target

    purchase order.exe

  • Size

    1.5MB

  • MD5

    0ecd4e2b8c8b2ed0547486adae4bea38

  • SHA1

    fe27a8b65b5124034b6928cc4b62ccc543d181c9

  • SHA256

    121ed7866968457d069a87e8f3bf56fd8313a61949414bfc1fd2da89fa0c572c

  • SHA512

    27e13285514640cbb63195e22489b1f5bd1e6f129ff0966fd5ae6f444984fb68d644fb983cc8c37953d0c04a1d1ec90d78d130ed40360d6e9dd48bab6ba06044

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.ananthasuites.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Anantha225@#

Signatures

  • AgentTesla

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

  • AgentTesla Payload 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\purchase order.exe
    "C:\Users\Admin\AppData\Local\Temp\purchase order.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:396
    • C:\Users\Admin\AppData\Local\Temp\purchase order.exe
      "{path}"
      2⤵
        PID:3212
      • C:\Users\Admin\AppData\Local\Temp\purchase order.exe
        "{path}"
        2⤵
          PID:3860
        • C:\Users\Admin\AppData\Local\Temp\purchase order.exe
          "{path}"
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4076

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\purchase order.exe.log

        MD5

        90acfd72f14a512712b1a7380c0faf60

        SHA1

        40ba4accb8faa75887e84fb8e38d598dc8cf0f12

        SHA256

        20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

        SHA512

        29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

      • memory/396-119-0x0000000004D50000-0x000000000524E000-memory.dmp

        Filesize

        5.0MB

      • memory/396-124-0x00000000089B0000-0x00000000089E8000-memory.dmp

        Filesize

        224KB

      • memory/396-118-0x0000000004DF0000-0x0000000004DF1000-memory.dmp

        Filesize

        4KB

      • memory/396-114-0x00000000002F0000-0x00000000002F1000-memory.dmp

        Filesize

        4KB

      • memory/396-120-0x0000000004D20000-0x0000000004D21000-memory.dmp

        Filesize

        4KB

      • memory/396-121-0x0000000004FB0000-0x0000000004FB1000-memory.dmp

        Filesize

        4KB

      • memory/396-117-0x0000000005250000-0x0000000005251000-memory.dmp

        Filesize

        4KB

      • memory/396-123-0x0000000008930000-0x00000000089A9000-memory.dmp

        Filesize

        484KB

      • memory/396-122-0x0000000000DB0000-0x0000000000DBE000-memory.dmp

        Filesize

        56KB

      • memory/396-116-0x0000000004C80000-0x0000000004C81000-memory.dmp

        Filesize

        4KB

      • memory/4076-126-0x00000000004374BE-mapping.dmp

      • memory/4076-125-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/4076-132-0x00000000056D0000-0x00000000056D1000-memory.dmp

        Filesize

        4KB

      • memory/4076-133-0x0000000005860000-0x0000000005861000-memory.dmp

        Filesize

        4KB

      • memory/4076-134-0x0000000006380000-0x0000000006381000-memory.dmp

        Filesize

        4KB