Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 00:26

General

  • Target

    decrypted.xlsx

  • Size

    653KB

  • MD5

    e2a5a633051b4e7e253ad4a0b11e3ccc

  • SHA1

    b82222381ffcc1cb65d5f79246006ac91b546a98

  • SHA256

    c2328ce920a800b3e331eaf0ef4215a26a948706b7b9d3c580e2f43b03248138

  • SHA512

    ff4f3ecc5b4e680283bfda9ee786779cf06c68321244c503b46d4b8ecc1f38bcdf9980173552a4958f4d8f341b8dca13428255beb718e3d0aeebea46e5390a29

  • SSDEEP

    12288:WTu3u39EzsTY1kFKRm41qNx6AV0VlpExk2wWLE4+lT8xA6/eMR6Fa:WzizsTYFLcPd0N6k2wYKlYyWpR6Fa

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 2 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 use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 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\decrypted.xlsx
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2888
  • 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
    • Launches Equation Editor
    PID:2152

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Exploitation for Client Execution

1
T1203

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2152-7-0x0000000008730000-0x0000000008731000-memory.dmp
    Filesize

    4KB

  • memory/2888-0-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/2888-1-0x000000007297D000-0x0000000072988000-memory.dmp
    Filesize

    44KB

  • memory/2888-6-0x000000007297D000-0x0000000072988000-memory.dmp
    Filesize

    44KB

  • memory/2888-8-0x0000000007440000-0x0000000007540000-memory.dmp
    Filesize

    1024KB

  • memory/2888-14-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/2888-19-0x000000007297D000-0x0000000072988000-memory.dmp
    Filesize

    44KB