Analysis

  • max time kernel
    125s
  • max time network
    125s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    21-10-2021 05:52

General

  • Target

    Swift USD PDF.exe

  • Size

    481KB

  • MD5

    f555598e6d0fb4e9c913b75080db2227

  • SHA1

    7de938e7c00fe91c58519495615642dbd081fd94

  • SHA256

    02e1afef37de9e6f85db592f56f13691548c8f796127e0d2c227c4f65b0033fc

  • SHA512

    0c41f745e9791abde693d447776747ff13f9e0640328813a9e1bda913428923ea8333868e8a39fa3322ea9d0adbb1d4e400c06e6e224e4de25c0492acbbdc244

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Ablegod123456

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 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\Swift USD PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\Swift USD PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3612
    • C:\Users\Admin\AppData\Local\Temp\Swift USD PDF.exe
      "C:\Users\Admin\AppData\Local\Temp\Swift USD PDF.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4484

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Swift USD PDF.exe.log
    MD5

    0c2899d7c6746f42d5bbe088c777f94c

    SHA1

    622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

    SHA256

    5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

    SHA512

    ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

  • memory/3612-122-0x0000000006290000-0x0000000006291000-memory.dmp
    Filesize

    4KB

  • memory/3612-118-0x0000000005550000-0x0000000005551000-memory.dmp
    Filesize

    4KB

  • memory/3612-119-0x0000000005540000-0x0000000005541000-memory.dmp
    Filesize

    4KB

  • memory/3612-120-0x0000000005960000-0x0000000005967000-memory.dmp
    Filesize

    28KB

  • memory/3612-121-0x00000000054B0000-0x00000000059AE000-memory.dmp
    Filesize

    5.0MB

  • memory/3612-115-0x0000000000C70000-0x0000000000C71000-memory.dmp
    Filesize

    4KB

  • memory/3612-123-0x0000000006330000-0x0000000006388000-memory.dmp
    Filesize

    352KB

  • memory/3612-117-0x00000000059B0000-0x00000000059B1000-memory.dmp
    Filesize

    4KB

  • memory/4484-124-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/4484-125-0x000000000043765E-mapping.dmp
  • memory/4484-131-0x0000000005300000-0x00000000057FE000-memory.dmp
    Filesize

    5.0MB

  • memory/4484-132-0x00000000057A0000-0x00000000057A1000-memory.dmp
    Filesize

    4KB

  • memory/4484-133-0x0000000006060000-0x0000000006061000-memory.dmp
    Filesize

    4KB