Analysis

  • max time kernel
    128s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    29-01-2021 14:28

General

  • Target

    Swift Copy.exe

  • Size

    402KB

  • MD5

    5a9debb5fe8c0e93ae9e02f10cecc58a

  • SHA1

    b75d715d1a80786b4e1071d6b1e4b3b3d815b815

  • SHA256

    eb805d5030c861fec54249670b911ad69bd6339de5e4deecbaf051633333ccb5

  • SHA512

    a423ab64388fc2e9da2b78e08940c006f68c6678436ab031761201ba5384df3f33eca0150587298a40e0cd80e7c8223167f4483b46f9b82f5afe4fa360701705

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.kpce-co.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    l9#Qg$:nwmC3

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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Swift Copy.exe
    "C:\Users\Admin\AppData\Local\Temp\Swift Copy.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:796
    • C:\Users\Admin\AppData\Local\Temp\Swift Copy.exe
      "{path}"
      2⤵
        PID:3012
      • C:\Users\Admin\AppData\Local\Temp\Swift Copy.exe
        "{path}"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2900

    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\Swift Copy.exe.log
      MD5

      0c2899d7c6746f42d5bbe088c777f94c

      SHA1

      622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

      SHA256

      5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

      SHA512

      ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

    • memory/796-11-0x0000000006FE0000-0x0000000007040000-memory.dmp
      Filesize

      384KB

    • memory/796-3-0x0000000000340000-0x0000000000341000-memory.dmp
      Filesize

      4KB

    • memory/796-6-0x0000000004BF0000-0x0000000004BF1000-memory.dmp
      Filesize

      4KB

    • memory/796-7-0x0000000004E50000-0x0000000004E51000-memory.dmp
      Filesize

      4KB

    • memory/796-2-0x00000000730E0000-0x00000000737CE000-memory.dmp
      Filesize

      6.9MB

    • memory/796-9-0x0000000004E40000-0x0000000004E44000-memory.dmp
      Filesize

      16KB

    • memory/796-5-0x00000000051B0000-0x00000000051B1000-memory.dmp
      Filesize

      4KB

    • memory/796-10-0x0000000007050000-0x0000000007051000-memory.dmp
      Filesize

      4KB

    • memory/796-8-0x0000000004BD0000-0x0000000004BD1000-memory.dmp
      Filesize

      4KB

    • memory/2900-13-0x000000000043747E-mapping.dmp
    • memory/2900-12-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/2900-15-0x00000000730E0000-0x00000000737CE000-memory.dmp
      Filesize

      6.9MB

    • memory/2900-20-0x0000000005040000-0x0000000005041000-memory.dmp
      Filesize

      4KB

    • memory/2900-21-0x0000000005310000-0x0000000005311000-memory.dmp
      Filesize

      4KB

    • memory/2900-22-0x0000000005BB0000-0x0000000005BB1000-memory.dmp
      Filesize

      4KB

    • memory/2900-25-0x0000000005041000-0x0000000005042000-memory.dmp
      Filesize

      4KB