Analysis

  • max time kernel
    102s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    21-02-2023 17:08

General

  • Target

    de2e56f52c0de70b7f12f4ea3294090f.xls

  • Size

    285KB

  • MD5

    de2e56f52c0de70b7f12f4ea3294090f

  • SHA1

    6ccf3f39d97ed65fc63c63b3f89d803623339c14

  • SHA256

    499a933bb0f2647908c79566b99eb38a607c1810e38985e5296175d79f239563

  • SHA512

    03ff23f544e3766edeef44233bd6dc21d7bdfc438bbd49c5508308ee2aeaa5f601c45f7e1b3919b1b468e1f5e706b450783457a4804ac3457544d82e73625b6e

  • SSDEEP

    3072:K8mDaqkCT+93VRB1PqvvDSadXVp0EQZyPsCdxpHJ8rfVrxTF/2oLwdxEGgXdNna0:OaqkCT+Zcl7Nd4Rmf4ClHRenJ7

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 3 IoCs

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

  • Deletes itself 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
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • Views/modifies file attributes 1 TTPs 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\de2e56f52c0de70b7f12f4ea3294090f.xls
    1⤵
    • Deletes itself
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • NTFS ADS
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1376
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:836
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1012
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      PID:1388
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      PID:1804

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Hidden Files and Directories

1
T1158

Defense Evasion

Modify Registry

1
T1112

Hidden Files and Directories

1
T1158

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1376-54-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1376-56-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-57-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-55-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-58-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-59-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-61-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-62-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-64-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-65-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-67-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-68-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-66-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-70-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-71-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-72-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-73-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-75-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-74-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-76-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-78-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-79-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-81-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-80-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-77-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-69-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-63-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-60-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-82-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-83-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB

  • memory/1376-105-0x0000000000640000-0x0000000000740000-memory.dmp
    Filesize

    1024KB