Analysis

  • max time kernel
    124s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 23:29

General

  • Target

    New Orders- POB001745 PDF.exe

  • Size

    666KB

  • MD5

    0760e7f9daa0e835cb4f83762ea6a396

  • SHA1

    1c93f56127048c0a3bc476014e97cd30398cefe3

  • SHA256

    e8019c082f5e72270bfba4138ea662483e6235ab5751332e3ad9120f9850b5bd

  • SHA512

    0fc15c08a74bf1b742f166b57edda31a94b39d74a4a4cfae147ade453dc930d4ddc53d6f5520112fbb3939d3cd52cc7a1125337e0798eb44a9c5cd6ab15ddc67

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.daafco.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Rawan!@#

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
  • 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.

  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\New Orders- POB001745 PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\New Orders- POB001745 PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1540
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\&startupname&" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAB5D.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1060
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1176
      • C:\Windows\SysWOW64\REG.exe
        REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
        3⤵
        • Modifies registry key
        PID:1936

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

2
T1112

Discovery

System Information Discovery

1
T1082

Collection

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpAB5D.tmp
    Filesize

    1KB

    MD5

    d2aa72e1e0a9b7dcb81af5082540153a

    SHA1

    69f84c985fea812daa2fcfd1941a7d60facb4a7e

    SHA256

    c7a368be198491672c06e17b5626878b39a06de3bb28c0f028cc3aff46e43d3d

    SHA512

    541bbb3c838c14bfc2c91d1394a99a72f76ad8c3534da1215336ffdc3d63922d456af573ced60d5dff7f9e70fc1f7c8f3cd8ad997374356ecb784695ea312692

  • memory/1060-59-0x0000000000000000-mapping.dmp
  • memory/1176-67-0x000000000044708E-mapping.dmp
  • memory/1176-65-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1176-71-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1176-69-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1176-66-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1176-61-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1176-62-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1176-64-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1540-55-0x0000000074B51000-0x0000000074B53000-memory.dmp
    Filesize

    8KB

  • memory/1540-57-0x0000000007050000-0x00000000070BE000-memory.dmp
    Filesize

    440KB

  • memory/1540-54-0x0000000000A80000-0x0000000000B2C000-memory.dmp
    Filesize

    688KB

  • memory/1540-56-0x00000000003A0000-0x00000000003A8000-memory.dmp
    Filesize

    32KB

  • memory/1540-58-0x0000000000900000-0x0000000000956000-memory.dmp
    Filesize

    344KB

  • memory/1936-73-0x0000000000000000-mapping.dmp