Analysis

  • max time kernel
    179s
  • max time network
    191s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2022 22:18

General

  • Target

    Swift confirmation copy.exe

  • Size

    1.1MB

  • MD5

    fcd8c31d4cddc5ce08f1cc04b1588732

  • SHA1

    b4b26d9674252eb6dcdafc00135761c142a8f210

  • SHA256

    db32b295a5b8d07a8bf93cee250587b68d12e45141859c1f9a73552c572db41f

  • SHA512

    e28a6ceb034de77abffb680b98da98b14329c8efbdc9b903d0ca42f1d1f5ecd9f431842cea023906e746e21e805c50054683b8a0a6003619b40c10491686dc34

  • SSDEEP

    24576:qcbUAwJIbJ3lKyNw+mnB2vY0ISdriluWypJwB:qAUxSJUJn8ESdDW2JwB

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.empoloshotel.co.ke
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    9n4NJdr*&($E

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • Looks up external IP address via web service 3 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.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Swift confirmation copy.exe
    "C:\Users\Admin\AppData\Local\Temp\Swift confirmation copy.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5060
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wkbjEousZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp70EA.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1184
    • C:\Users\Admin\AppData\Local\Temp\Swift confirmation copy.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:2120

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Swift confirmation copy.exe.log

    Filesize

    1KB

    MD5

    84e77a587d94307c0ac1357eb4d3d46f

    SHA1

    83cc900f9401f43d181207d64c5adba7a85edc1e

    SHA256

    e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99

    SHA512

    aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691

  • C:\Users\Admin\AppData\Local\Temp\tmp70EA.tmp

    Filesize

    1KB

    MD5

    d49b9dc9a0b901bb5d1dabe527109eaf

    SHA1

    fa0adb701c48b7f4219db509c38de378f1351b5c

    SHA256

    fb591afed95b0e175eaf95c6cd4f3ee4b129d063ae7cb6eb18878c4b17f038dc

    SHA512

    3823f2699895244b090714e3acc2b29ac1273a12fcb929ab628a66be6686313350efa9eb34aa4c37f88158595d44d71cb9d4894b3449b87facae52fd8f5962b0

  • memory/1184-137-0x0000000000000000-mapping.dmp

  • memory/2120-139-0x0000000000000000-mapping.dmp

  • memory/2120-140-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2120-142-0x0000000005F50000-0x0000000005FB6000-memory.dmp

    Filesize

    408KB

  • memory/2120-143-0x0000000006AB0000-0x0000000006B00000-memory.dmp

    Filesize

    320KB

  • memory/5060-132-0x00000000006F0000-0x000000000080C000-memory.dmp

    Filesize

    1.1MB

  • memory/5060-133-0x00000000057C0000-0x0000000005D64000-memory.dmp

    Filesize

    5.6MB

  • memory/5060-134-0x0000000005210000-0x00000000052A2000-memory.dmp

    Filesize

    584KB

  • memory/5060-135-0x00000000052B0000-0x000000000534C000-memory.dmp

    Filesize

    624KB

  • memory/5060-136-0x0000000005190000-0x000000000519A000-memory.dmp

    Filesize

    40KB