Analysis

  • max time kernel
    119s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    12-12-2023 13:30

General

  • Target

    New Order POREF9089056.xlam

  • Size

    582KB

  • MD5

    49738439bcfcfc5004baa26882cac103

  • SHA1

    c0bce9d61a737f73447ac5cd5790f2912664813a

  • SHA256

    e3c5829c621c6eae33c20f6744acdec9671779ca8e9ec555052638aa2577a587

  • SHA512

    352e740314843484c314bf94cdffa987bbba57b1564a5722f4e5d1074f344a17b298c40a384f6aa40c4690650f9116acea73e9c792e0e17100b9501707db93a8

  • SSDEEP

    12288:IRFQqU2NWQVENBwXsQ5s1jp1Wy2jd23qAleDVyVMK:qpuuP5s1OPjdeqnkVB

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect ZGRat V1 1 IoCs
  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • 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 system info in registry 2 TTPs 1 IoCs
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\New Order POREF9089056.xlam"
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:884
  • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
    "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
    1⤵
    • Blocklisted process makes network request
    • Loads dropped DLL
    • Launches Equation Editor
    • Suspicious use of WriteProcessMemory
    PID:592
    • C:\Users\Admin\AppData\Roaming\nbdegxy.exe
      C:\Users\Admin\AppData\Roaming\nbdegxy.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2640
      • C:\Users\Admin\AppData\Roaming\nbdegxy.exe
        "C:\Users\Admin\AppData\Roaming\nbdegxy.exe"
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:3000

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Roaming\nbdegxy.exe

    Filesize

    590KB

    MD5

    855e53d5fa0fdee67665c7f88d4d487e

    SHA1

    958dca78515e113aa7e797f113a1e138ab88436f

    SHA256

    5747040461ca09b66d0d59604122e0c1ab679444f7b7c8e4e83ef5f03de96ed7

    SHA512

    e65f72643bc734cbf21eba7fa620898fbee931eef9a9a5f753bd214b6e63f852ff409bb24f88ec4ab7f0fb245f37775534e59d0df187e01b429dd10bb731d953

  • memory/884-19-0x00000000723CD000-0x00000000723D8000-memory.dmp

    Filesize

    44KB

  • memory/884-1-0x00000000723CD000-0x00000000723D8000-memory.dmp

    Filesize

    44KB

  • memory/884-41-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/884-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/884-42-0x00000000723CD000-0x00000000723D8000-memory.dmp

    Filesize

    44KB

  • memory/2640-17-0x0000000000230000-0x0000000000248000-memory.dmp

    Filesize

    96KB

  • memory/2640-18-0x0000000000210000-0x0000000000218000-memory.dmp

    Filesize

    32KB

  • memory/2640-36-0x000000006C240000-0x000000006C92E000-memory.dmp

    Filesize

    6.9MB

  • memory/2640-20-0x00000000002E0000-0x00000000002EA000-memory.dmp

    Filesize

    40KB

  • memory/2640-21-0x0000000004F60000-0x0000000004FCA000-memory.dmp

    Filesize

    424KB

  • memory/2640-16-0x0000000001330000-0x0000000001370000-memory.dmp

    Filesize

    256KB

  • memory/2640-15-0x000000006C240000-0x000000006C92E000-memory.dmp

    Filesize

    6.9MB

  • memory/2640-14-0x00000000013A0000-0x0000000001438000-memory.dmp

    Filesize

    608KB

  • memory/3000-23-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/3000-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3000-30-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/3000-33-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/3000-35-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/3000-26-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/3000-37-0x000000006C240000-0x000000006C92E000-memory.dmp

    Filesize

    6.9MB

  • memory/3000-38-0x0000000004D40000-0x0000000004D80000-memory.dmp

    Filesize

    256KB

  • memory/3000-39-0x000000006C240000-0x000000006C92E000-memory.dmp

    Filesize

    6.9MB

  • memory/3000-24-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/3000-22-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB