Analysis

  • max time kernel
    148s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 11:13

General

  • Target

    QUOTATION.exe

  • Size

    579KB

  • MD5

    604108d0607c37fef45d876d0f4d834c

  • SHA1

    680b0c8b2f76e0b47f4d37c75f9b7cc1797f9cce

  • SHA256

    b7a6f698d55b81c17148ab01aa383457174788d2448d6a6df8e0d9db3c77dd12

  • SHA512

    1eb51f42346da4d49e20edc0446c7783838600901489ebe98aecfe1020a0d773d2b8f089852e47f9c4212728fcc5cee4ee1ab08341dcc4bfa02a072d81565fcb

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.ritac-eg.com
  • Port:
    587
  • Username:
    ugoblaq@ritac-eg.com
  • Password:
    YM%dNtj2

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 IoCs
  • Drops file in Drivers directory 1 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe
    "C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:900
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lHYCzvolJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAA64.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1436
    • C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe
      "{path}"
      2⤵
      • Drops file in Drivers directory
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1060

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpAA64.tmp
    Filesize

    1KB

    MD5

    5f54e863895a0fe6823c4d6636d1f270

    SHA1

    0b0dfce3baa6dbf893550dfe5c234cf87fb8ab1d

    SHA256

    3bd39928a420572ba9cf1d7656db96b085fe8cf67d1f5b0214fa5a469ecc93c1

    SHA512

    f0c7ac205467d7d9237b087a2be06c40551877034e190ede8bfa8bd1b45210826b2a605405bf2ef2bb5fa45724b12c250c93a7c14f0b1afffd8dc3a84be261b7

  • memory/900-57-0x0000000004F70000-0x0000000004FF2000-memory.dmp
    Filesize

    520KB

  • memory/900-55-0x00000000751C1000-0x00000000751C3000-memory.dmp
    Filesize

    8KB

  • memory/900-54-0x0000000000E10000-0x0000000000EA8000-memory.dmp
    Filesize

    608KB

  • memory/900-58-0x0000000000AF0000-0x0000000000B6A000-memory.dmp
    Filesize

    488KB

  • memory/900-56-0x0000000000480000-0x000000000048A000-memory.dmp
    Filesize

    40KB

  • memory/1060-66-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/1060-61-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/1060-62-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/1060-64-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/1060-65-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/1060-67-0x000000000046179E-mapping.dmp
  • memory/1060-69-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/1060-71-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/1436-59-0x0000000000000000-mapping.dmp