Analysis

  • max time kernel
    124s
  • max time network
    113s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    27-07-2021 22:54

General

  • Target

    EFINAL REVISED_INVOICE AND PACKING LIST FOR SHIPMENT Email no. M1053 dd. June 26, 2021.exe

  • Size

    635KB

  • MD5

    ca9ce774706c2f1708af10d3da19be03

  • SHA1

    059fc99b8d6ff50f997d7acb1a0ccf55cc776605

  • SHA256

    4f4b3dded538765e48f27d8bf0ef605572313a3f95f71f642daa53402abd8776

  • SHA512

    b351dbb0eae5871f7996a46d004862c824fdc6f23bfb06cff6b55f3662fc453e890e5af94c0b02cbf513228be27e39a5f13ccade69b5bd3de4149af1f34ed760

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://universalinks.net/
  • Port:
    21
  • Username:
    bring4@universalinks.net
  • Password:
    {lafa{u^wEx8

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • Drops file in Drivers directory 1 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\EFINAL REVISED_INVOICE AND PACKING LIST FOR SHIPMENT Email no. M1053 dd. June 26, 2021.exe
    "C:\Users\Admin\AppData\Local\Temp\EFINAL REVISED_INVOICE AND PACKING LIST FOR SHIPMENT Email no. M1053 dd. June 26, 2021.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4056
    • C:\Users\Admin\AppData\Local\Temp\EFINAL REVISED_INVOICE AND PACKING LIST FOR SHIPMENT Email no. M1053 dd. June 26, 2021.exe
      "{path}"
      2⤵
        PID:4060
      • C:\Users\Admin\AppData\Local\Temp\EFINAL REVISED_INVOICE AND PACKING LIST FOR SHIPMENT Email no. M1053 dd. June 26, 2021.exe
        "{path}"
        2⤵
        • Drops file in Drivers directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:3644

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Credential Access

    Credentials in Files

    3
    T1081

    Collection

    Data from Local System

    3
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\EFINAL REVISED_INVOICE AND PACKING LIST FOR SHIPMENT Email no. M1053 dd. June 26, 2021.exe.log
      MD5

      0c2899d7c6746f42d5bbe088c777f94c

      SHA1

      622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

      SHA256

      5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

      SHA512

      ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

    • memory/3644-125-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/3644-134-0x0000000005DB0000-0x0000000005DB1000-memory.dmp
      Filesize

      4KB

    • memory/3644-133-0x00000000052D0000-0x00000000052D1000-memory.dmp
      Filesize

      4KB

    • memory/3644-132-0x0000000005150000-0x000000000564E000-memory.dmp
      Filesize

      5.0MB

    • memory/3644-126-0x000000000043775E-mapping.dmp
    • memory/4056-119-0x0000000004A50000-0x0000000004A51000-memory.dmp
      Filesize

      4KB

    • memory/4056-122-0x00000000051B0000-0x00000000051B1000-memory.dmp
      Filesize

      4KB

    • memory/4056-123-0x00000000070A0000-0x000000000711A000-memory.dmp
      Filesize

      488KB

    • memory/4056-124-0x0000000005BF0000-0x0000000005C28000-memory.dmp
      Filesize

      224KB

    • memory/4056-121-0x0000000005100000-0x0000000005102000-memory.dmp
      Filesize

      8KB

    • memory/4056-120-0x0000000004AA0000-0x0000000004AA1000-memory.dmp
      Filesize

      4KB

    • memory/4056-114-0x0000000000160000-0x0000000000161000-memory.dmp
      Filesize

      4KB

    • memory/4056-118-0x0000000004C50000-0x0000000004C51000-memory.dmp
      Filesize

      4KB

    • memory/4056-117-0x0000000009430000-0x0000000009431000-memory.dmp
      Filesize

      4KB

    • memory/4056-116-0x00000000049F0000-0x0000000004A49000-memory.dmp
      Filesize

      356KB