Overview

overview

10

Static

static

BBKU39-2022-KTC.exe

windows7-x64

10

BBKU39-2022-KTC.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    195s
  • max time network
    192s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2022 13:23

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General

  • Target

    BBKU39-2022-KTC.exe

  • Size

    789KB

  • MD5

    72c17e8d702de79f794fe16787a61098

  • SHA1

    18f51344f688db3979c55a6322f013269b4c308d

  • SHA256

    4513951a7d2bdb62b062c790f0c259d9f5854497b6e5e8ed0369d22197d1e856

  • SHA512

    09ca148f810649989cb89507848de48d55738f79bc301e4a7c8b2f3b52bc231b59aa79c15be126eb7c41a2d8801279792eb21a262b45e0503a8c93eca26fec43

  • SSDEEP

    12288:OKdsCbFr5cE8LHWy/SEdRMA/LyzIPPPu6gtFNDzUwSzWbTgvS6/IiTHWcb:7ovLB9/LkInstFxQvCngv5/1db

Score
10/10
agentteslacollectionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    mail.strictfacilityservices.com
  • Port:
    587
  • Username:
    accounts@strictfacilityservices.com
  • Password:
    SFS!@#321
  • Email To:
    guc850155@gmail.com

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    spywarestealer
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spywarestealer
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BBKU39-2022-KTC.exe
    "C:\Users\Admin\AppData\Local\Temp\BBKU39-2022-KTC.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1304
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GDqcmzjrs" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF613.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1508
    • C:\Users\Admin\AppData\Local\Temp\BBKU39-2022-KTC.exe
      "{path}"
      2⤵
        PID:336
      • C:\Users\Admin\AppData\Local\Temp\BBKU39-2022-KTC.exe
        "{path}"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:560

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    System Information Discovery

    1
    T1082

    Lateral Movement

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpF613.tmp
      Filesize

      1KB

      MD5

      595beed428199113241b0b02f223f4d7

      SHA1

      2507f8791a738561c7025f6d971ed78a99a313c8

      SHA256

      43b6a16330cfc3c4d777a592bcb9a1a299a7fd4e58719f025c77386b6895c9b6

      SHA512

      5c262e8b6645a774f2705bd16aaa2f623e0ae9bc23e9dcda07f00e0cf14e721d63e0a61db33e93cce79971ea2c758b2a3c2ba6a661c3a558ce96d7b705715c25

      Download Submit
    • memory/560-64-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

      Download
    • memory/560-66-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

      Download
    • memory/560-71-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

      Download
    • memory/560-69-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

      Download
    • memory/560-67-0x0000000000437B9E-mapping.dmp
      Download
    • memory/560-65-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

      Download
    • memory/560-61-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

      Download
    • memory/560-62-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

      Download
    • memory/1304-54-0x00000000000A0000-0x000000000016C000-memory.dmp
      Filesize

      816KB

      Download
    • memory/1304-55-0x0000000075F01000-0x0000000075F03000-memory.dmp
      Filesize

      8KB

      Download
    • memory/1304-56-0x00000000004B0000-0x00000000004C2000-memory.dmp
      Filesize

      72KB

      Download
    • memory/1304-58-0x0000000005DA0000-0x0000000005DDC000-memory.dmp
      Filesize

      240KB

      Download
    • memory/1304-57-0x0000000007CF0000-0x0000000007D74000-memory.dmp
      Filesize

      528KB

      Download
    • memory/1508-59-0x0000000000000000-mapping.dmp
      Download