Analysis

  • max time kernel
    98s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/04/2023, 14:36

General

  • Target

    4800ebd004e4134b0fe7aac791f66ced.exe

  • Size

    681KB

  • MD5

    4800ebd004e4134b0fe7aac791f66ced

  • SHA1

    909492de26131649fdcdc41bbdf81addd1c0e786

  • SHA256

    88c57d68e2ca4a359aaf8a1d6225ce440657f02c27f2e87f61cf72d93b4ae956

  • SHA512

    db932f53fcee6e8e61b0685298222d04b1944764867945e231a5d2ac66e7a15a48c468a2d89a29543f3d322c2d2731a88f15e922402a69b1817543a8e66cae21

  • SSDEEP

    12288:HKHEjY+LaE5czMZm81UuhWbnk1nLn9mWbavvSy2p3NIYxVhOO/uLqy:H7P5PWZw59wvvSy2dv7h92Lqy

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.redemed.xyz
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    workhard123#

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.redemed.xyz
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    workhard123#

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
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4800ebd004e4134b0fe7aac791f66ced.exe
    "C:\Users\Admin\AppData\Local\Temp\4800ebd004e4134b0fe7aac791f66ced.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4124
    • C:\Users\Admin\AppData\Local\Temp\4800ebd004e4134b0fe7aac791f66ced.exe
      "C:\Users\Admin\AppData\Local\Temp\4800ebd004e4134b0fe7aac791f66ced.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4684

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\4800ebd004e4134b0fe7aac791f66ced.exe.log

          Filesize

          1KB

          MD5

          8ec831f3e3a3f77e4a7b9cd32b48384c

          SHA1

          d83f09fd87c5bd86e045873c231c14836e76a05c

          SHA256

          7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

          SHA512

          26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

        • memory/4124-139-0x0000000007AA0000-0x0000000007B3C000-memory.dmp

          Filesize

          624KB

        • memory/4124-135-0x0000000004D70000-0x0000000004E02000-memory.dmp

          Filesize

          584KB

        • memory/4124-136-0x0000000004F10000-0x0000000004F1A000-memory.dmp

          Filesize

          40KB

        • memory/4124-137-0x0000000004F70000-0x0000000004F80000-memory.dmp

          Filesize

          64KB

        • memory/4124-138-0x0000000004F70000-0x0000000004F80000-memory.dmp

          Filesize

          64KB

        • memory/4124-133-0x0000000000310000-0x00000000003C0000-memory.dmp

          Filesize

          704KB

        • memory/4124-134-0x0000000005280000-0x0000000005824000-memory.dmp

          Filesize

          5.6MB

        • memory/4684-140-0x0000000000400000-0x0000000000448000-memory.dmp

          Filesize

          288KB

        • memory/4684-143-0x0000000005130000-0x0000000005196000-memory.dmp

          Filesize

          408KB

        • memory/4684-144-0x00000000050B0000-0x00000000050C0000-memory.dmp

          Filesize

          64KB

        • memory/4684-145-0x00000000050B0000-0x00000000050C0000-memory.dmp

          Filesize

          64KB

        • memory/4684-147-0x0000000006CB0000-0x0000000006D00000-memory.dmp

          Filesize

          320KB

        • memory/4684-148-0x0000000006F80000-0x0000000007142000-memory.dmp

          Filesize

          1.8MB