Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-03-2024 11:56

General

  • Target

    04fbd3307b19c80a10503643a249aab9_JaffaCakes118.exe

  • Size

    507KB

  • MD5

    04fbd3307b19c80a10503643a249aab9

  • SHA1

    87975712b67d94cffd538c577db637e033d54223

  • SHA256

    ced91b0b65e08e9ace9d074af2abce84acafc42f69ce1e9905f08a6d85cb6b8b

  • SHA512

    7f23aca4d6ee895836c22ec3671a1f1617cf583cc93f5a7c2808ff1d3a53f325898db358fd4369f1e1e6d87d1d622b1833349d221a4cc279c31f54069993a570

  • SSDEEP

    12288:kt7WyuqDnhdETTtplYjEELNxMd9/rFf8OqAtPkSBY6:iqeTEFplYgKNSrFfWgP5BY

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.topfrozenfoodbrand.com
  • Port:
    587
  • Username:
    compra@topfrozenfoodbrand.com
  • Password:
    Everest10purch
  • Email To:
    purchase@topfrozenfoodbrand.com

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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
  • Program crash 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\04fbd3307b19c80a10503643a249aab9_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\04fbd3307b19c80a10503643a249aab9_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1264
    • C:\Users\Admin\AppData\Local\Temp\04fbd3307b19c80a10503643a249aab9_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\04fbd3307b19c80a10503643a249aab9_JaffaCakes118.exe"
      2⤵
      • Drops file in Drivers directory
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4492
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 1564
        3⤵
        • Program crash
        PID:1248
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4492 -ip 4492
    1⤵
      PID:4340

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Credential Access

    Unsecured Credentials

    4
    T1552

    Credentials In Files

    3
    T1552.001

    Credentials in Registry

    1
    T1552.002

    Collection

    Data from Local System

    4
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\04fbd3307b19c80a10503643a249aab9_JaffaCakes118.exe.log
      Filesize

      1KB

      MD5

      29e778404005c40e2a9d177ebd2a5243

      SHA1

      e65811e2c5c670a75dca15a3f19812639ff1953c

      SHA256

      9f0e578b7ecdbab4ae321464f76dd43ac1f7c82c1e170fd95720f8620910aeda

      SHA512

      e74cf55debf51d4141a4b3c81d3f7e6abe9cd267db023bd70d3f2bb2c7560c14aab063eb35c9bac5ecab4d050a251cd93b8e693157ca2e50f67d225539ce9426

    • memory/1264-10-0x0000000006E50000-0x0000000006EEC000-memory.dmp
      Filesize

      624KB

    • memory/1264-3-0x0000000005770000-0x00000000058F6000-memory.dmp
      Filesize

      1.5MB

    • memory/1264-11-0x0000000006F50000-0x0000000006FB0000-memory.dmp
      Filesize

      384KB

    • memory/1264-4-0x0000000005900000-0x0000000005992000-memory.dmp
      Filesize

      584KB

    • memory/1264-5-0x0000000005650000-0x0000000005660000-memory.dmp
      Filesize

      64KB

    • memory/1264-6-0x0000000005750000-0x000000000575A000-memory.dmp
      Filesize

      40KB

    • memory/1264-7-0x0000000005B80000-0x0000000005B8A000-memory.dmp
      Filesize

      40KB

    • memory/1264-8-0x0000000074B80000-0x0000000075330000-memory.dmp
      Filesize

      7.7MB

    • memory/1264-1-0x0000000074B80000-0x0000000075330000-memory.dmp
      Filesize

      7.7MB

    • memory/1264-0-0x0000000000BE0000-0x0000000000C64000-memory.dmp
      Filesize

      528KB

    • memory/1264-15-0x0000000074B80000-0x0000000075330000-memory.dmp
      Filesize

      7.7MB

    • memory/1264-2-0x0000000005B90000-0x0000000006134000-memory.dmp
      Filesize

      5.6MB

    • memory/1264-9-0x0000000005650000-0x0000000005660000-memory.dmp
      Filesize

      64KB

    • memory/4492-24-0x0000000074B80000-0x0000000075330000-memory.dmp
      Filesize

      7.7MB

    • memory/4492-16-0x0000000074B80000-0x0000000075330000-memory.dmp
      Filesize

      7.7MB

    • memory/4492-17-0x0000000005660000-0x0000000005670000-memory.dmp
      Filesize

      64KB

    • memory/4492-18-0x0000000005910000-0x0000000005928000-memory.dmp
      Filesize

      96KB

    • memory/4492-19-0x0000000006560000-0x00000000065C6000-memory.dmp
      Filesize

      408KB

    • memory/4492-20-0x0000000074B80000-0x0000000075330000-memory.dmp
      Filesize

      7.7MB

    • memory/4492-21-0x0000000005660000-0x0000000005670000-memory.dmp
      Filesize

      64KB

    • memory/4492-23-0x0000000006780000-0x00000000067D0000-memory.dmp
      Filesize

      320KB

    • memory/4492-12-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB