Analysis

  • max time kernel
    29s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    27-03-2024 01:10

General

  • Target

    f0a27618b5718409b3f2343a223f7d75ae36ab893f98315a13fe492b29bd81d1.xlam

  • Size

    688KB

  • MD5

    dd2f4303249786c6fa25e9b16664f1ec

  • SHA1

    9fd8215c6da713423874bf29cd66dc87429176a7

  • SHA256

    f0a27618b5718409b3f2343a223f7d75ae36ab893f98315a13fe492b29bd81d1

  • SHA512

    462ab897b86af39973fdc8db736d4079032c1596538bc0000c69e4d869f896e2f54d7ecf308f5654da5791bccc6002184f38c32807a1605e1a60390c7ba026b1

  • SSDEEP

    12288:DdtGeA+wXto4IFqqAzAsOppH5RZ6DF83ND8hc/ejS7j44RhTBkP:DdtGewXto4IZAzKTjZ6DFkNgc/gS7j5c

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • AutoIT Executable 4 IoCs

    AutoIT scripts compiled to PE executables.

  • 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 behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 12 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\f0a27618b5718409b3f2343a223f7d75ae36ab893f98315a13fe492b29bd81d1.xlam
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:2868
  • 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:2552
    • C:\Users\Admin\AppData\Local\Temp\zibcvypliu.exe
      "C:\Users\Admin\AppData\Local\Temp\zibcvypliu.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1932
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Users\Admin\AppData\Local\Temp\zibcvypliu.exe"
        3⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:2472

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\zibcvypliu.exe

    Filesize

    348KB

    MD5

    07643b80bd9c3c32bda90447021d7899

    SHA1

    68633ddd31f91e00d1a9a710fca2de69ed9a8b90

    SHA256

    c746677ee14a3dfe4203e425d451fa8cacf7291a066880314976f1b5124561b4

    SHA512

    69a18d4688550442d528aff0fad1d8548bb056a2e17d538fc643f914c81ea791f7e19199949f1c3007688a150c36d52178a6926478c8be8660947715bee8043c

  • C:\Users\Admin\AppData\Local\Temp\zibcvypliu.exe

    Filesize

    309KB

    MD5

    698e53c580486e4640f703a4cd741a6b

    SHA1

    4b60a084923e97dc545c41957e0fd3001e6862b9

    SHA256

    bc796cbcb6d30f827660d847e7dfb3e1932c5032aa456701aa9e2e9930182e78

    SHA512

    3161d92d636d0a6be8d18c8f15acbbffa50476e80eca621faf6ca839634c8bc547e375ae1853254ed128923f2a466c07d5d79d5596f856e1dfd2ba2f9116750d

  • C:\Users\Admin\AppData\Local\Temp\zibcvypliu.exe

    Filesize

    756KB

    MD5

    8fd247d486a2dc6860ad40bb0a96915d

    SHA1

    756981907efbab473f378e0c3bf590eb5d7994aa

    SHA256

    989e7e0d74d2414db982f0011bcd9ac9fa4761099e67286a4e1ad4804ac9fac9

    SHA512

    84836c753230b97254983505d59bb7e7d2035860c1ab8c5487eb1f75fe9d54f7e6fac38e3079d9e9a04ca941b47e18b7fcf21ede1ac4880a925a9581696e636f

  • \Users\Admin\AppData\Local\Temp\zibcvypliu.exe

    Filesize

    539KB

    MD5

    379cef3f7d0102b718edccc02d829990

    SHA1

    128bc188c63fd5347acc61eb477ae5f24cd08b6f

    SHA256

    8616c5bfc8b6f67ab4b8dab6dc4d5ef645ce2d8ae91ce8f74a3897a92b63d42d

    SHA512

    71a208266e440f5d887449a82fd8a5fd2d8d4772ae4670e77b943e76d22d87d1047f763237d8f1c2ea6537e33b3d7cd3a35b774d64dee5af2c7e5e7c39341c6d

  • memory/1932-22-0x00000000002C0000-0x00000000002C4000-memory.dmp

    Filesize

    16KB

  • memory/2472-23-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2472-25-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2472-27-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2472-28-0x000000006C1A0000-0x000000006C88E000-memory.dmp

    Filesize

    6.9MB

  • memory/2472-29-0x0000000004E60000-0x0000000004EA0000-memory.dmp

    Filesize

    256KB

  • memory/2472-31-0x000000006C1A0000-0x000000006C88E000-memory.dmp

    Filesize

    6.9MB

  • memory/2868-1-0x000000007269D000-0x00000000726A8000-memory.dmp

    Filesize

    44KB

  • memory/2868-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2868-30-0x000000007269D000-0x00000000726A8000-memory.dmp

    Filesize

    44KB