Analysis

  • max time kernel
    130s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 00:17

General

  • Target

    payment advice copy.image.scan01.jpg.exe

  • Size

    404KB

  • MD5

    951376f32a5d7407c6050cf92ef76031

  • SHA1

    45209c07bb060f82f002e2fbd11bf536e9cfe1e0

  • SHA256

    0b4b9a3ed216be7eac4a0ffa5add89024e0eab7e63ffdf1cb8e8af0e2119feac

  • SHA512

    367580f71245bf6891f9047bfec5108d41a094e2622eaaf4a4aab623459df03b2fcfdf13ba5da50c0b08cf3b5711638c1dd4f5336fa2ee353106fc03d6e195aa

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    qwerty123@

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\payment advice copy.image.scan01.jpg.exe
    "C:\Users\Admin\AppData\Local\Temp\payment advice copy.image.scan01.jpg.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:644
    • C:\Users\Admin\AppData\Local\Temp\payment advice copy.image.scan01.jpg.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1168

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

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Downloads

  • memory/644-54-0x00000000000F0000-0x000000000015C000-memory.dmp
    Filesize

    432KB

  • memory/644-55-0x00000000005B0000-0x00000000005BA000-memory.dmp
    Filesize

    40KB

  • memory/644-56-0x0000000004090000-0x00000000040EC000-memory.dmp
    Filesize

    368KB

  • memory/644-57-0x0000000004C00000-0x0000000004C4A000-memory.dmp
    Filesize

    296KB

  • memory/1168-58-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1168-59-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1168-61-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1168-62-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1168-63-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1168-64-0x0000000000446DBE-mapping.dmp
  • memory/1168-66-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1168-68-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1168-69-0x0000000075BF1000-0x0000000075BF3000-memory.dmp
    Filesize

    8KB