Analysis

  • max time kernel
    166s
  • max time network
    72s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    14-10-2021 05:03

General

  • Target

    FCA 48992-38499.exe

  • Size

    540KB

  • MD5

    d8247074a69d4296446b8e17c853df4b

  • SHA1

    03d71485a2d7101460d0df0b1cc3b6fdb160782d

  • SHA256

    cb5319ac9e7361b1a838a9c8199d37f1600ad807aab15917825380f2837e9ad2

  • SHA512

    dc272a92ca731afdbbdafd5569868e432f127d629176098d90792ee1a9f863039f620008bbacd9a981c464bd271de22603f0172450b9ee270f5ef1de33b8544e

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.xb-inb.com
  • Port:
    587
  • Username:
    logs1@xb-inb.com
  • Password:
    Nou^xck6

Signatures

  • AgentTesla

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

  • AgentTesla Payload 5 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 11 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\FCA 48992-38499.exe
    "C:\Users\Admin\AppData\Local\Temp\FCA 48992-38499.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1988
    • C:\Users\Admin\AppData\Local\Temp\FCA 48992-38499.exe
      "C:\Users\Admin\AppData\Local\Temp\FCA 48992-38499.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1300

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

  • memory/1300-70-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1300-69-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1300-75-0x0000000004701000-0x0000000004702000-memory.dmp
    Filesize

    4KB

  • memory/1300-74-0x0000000004700000-0x0000000004701000-memory.dmp
    Filesize

    4KB

  • memory/1300-72-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1300-66-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1300-68-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1300-67-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1300-71-0x00000000004374EE-mapping.dmp
  • memory/1988-60-0x0000000000CE0000-0x0000000000CE1000-memory.dmp
    Filesize

    4KB

  • memory/1988-62-0x0000000075AD1000-0x0000000075AD3000-memory.dmp
    Filesize

    8KB

  • memory/1988-65-0x0000000004F70000-0x0000000004FEC000-memory.dmp
    Filesize

    496KB

  • memory/1988-64-0x0000000000590000-0x0000000000595000-memory.dmp
    Filesize

    20KB

  • memory/1988-63-0x0000000004780000-0x0000000004781000-memory.dmp
    Filesize

    4KB