Analysis

  • max time kernel
    147s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 00:25

General

  • Target

    NEW_ORDRE-98767-Doc.exe

  • Size

    636KB

  • MD5

    457e31b0c58ec283e411bd1bf59ba773

  • SHA1

    ba1e592cbe4ed8a696cd8480fe8e6a2a4f467f51

  • SHA256

    fddde2c8eef8500b27534730d7d921de40a507d1531488a8ee278fc93ce422db

  • SHA512

    9e1336f9a554778ea94be0d30b2ca411ad05c61c9e895e5dc2fbd307e94b743969b17cb8d96b3c57a9cc98334465f9805180311b6dbcddc0da5fa51efc46d261

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    valid247

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 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
  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEW_ORDRE-98767-Doc.exe
    "C:\Users\Admin\AppData\Local\Temp\NEW_ORDRE-98767-Doc.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:756
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\&startupname&" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF181.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2016
    • C:\Users\Admin\AppData\Local\Temp\NEW_ORDRE-98767-Doc.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:1996

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

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\tmpF181.tmp
    Filesize

    1KB

    MD5

    ab15c7fe3dc23f51a8ed4545eb54a9cb

    SHA1

    206a5e711a5b8819deae10c568fa760a23d9308c

    SHA256

    2889f7b15e75b474bfa37c720f216861f138e8e39e1d2f807ce751a21086674b

    SHA512

    29b8f09dfa625fad63d6cae0fd9d9f9ea19a4b5a001138c5afb644c0d37f1cc2e7bf51a4242af433568b22b19613b1570a234474663cc659dd4ad54c7407a114

  • memory/756-55-0x0000000074F10000-0x00000000754BB000-memory.dmp
    Filesize

    5.7MB

  • memory/756-54-0x0000000075C51000-0x0000000075C53000-memory.dmp
    Filesize

    8KB

  • memory/1996-61-0x0000000000400000-0x000000000044E000-memory.dmp
    Filesize

    312KB

  • memory/1996-58-0x0000000000400000-0x000000000044E000-memory.dmp
    Filesize

    312KB

  • memory/1996-59-0x0000000000400000-0x000000000044E000-memory.dmp
    Filesize

    312KB

  • memory/1996-62-0x0000000000400000-0x000000000044E000-memory.dmp
    Filesize

    312KB

  • memory/1996-63-0x0000000000400000-0x000000000044E000-memory.dmp
    Filesize

    312KB

  • memory/1996-66-0x0000000000400000-0x000000000044E000-memory.dmp
    Filesize

    312KB

  • memory/1996-64-0x00000000004492CE-mapping.dmp
  • memory/1996-68-0x0000000000400000-0x000000000044E000-memory.dmp
    Filesize

    312KB

  • memory/1996-70-0x0000000074EA0000-0x000000007544B000-memory.dmp
    Filesize

    5.7MB

  • memory/2016-56-0x0000000000000000-mapping.dmp