Analysis

  • max time kernel
    104s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    18-11-2022 23:06

General

  • Target

    2cdd77f5b0315c629a12ae45d18d6868141b5182bb3d665fe8a5a378656ede1b.xls

  • Size

    82KB

  • MD5

    261e9906ba6d2964284bb4d5bfab992f

  • SHA1

    b45bdf2dfcd8f29d344f4481cb8e56ba65f875e7

  • SHA256

    2cdd77f5b0315c629a12ae45d18d6868141b5182bb3d665fe8a5a378656ede1b

  • SHA512

    8892b2c18ece80fa35c3d284882232b2680a2c9d99c1fe0a9b3d1bb4b125c2285382dc9dccd5999eec7fa284a27e1007222f7477413d4c6ed87d2100694b135e

  • SSDEEP

    1536:e3333TC+LUAIMAN2jcc0lbxOqTgZEM88ScJtX+3p+EA:T52jcc0lbxOKQjhJtX+AEA

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 3 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\2cdd77f5b0315c629a12ae45d18d6868141b5182bb3d665fe8a5a378656ede1b.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:1308
    • 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:828
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1028
    • 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:996
    • 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:896

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/828-219-0x0000000000000000-mapping.dmp
  • memory/896-220-0x0000000000000000-mapping.dmp
  • memory/996-221-0x0000000000000000-mapping.dmp
  • memory/1028-222-0x0000000000000000-mapping.dmp
  • memory/1308-73-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-383-0x0000000071C8D000-0x0000000071C98000-memory.dmp
    Filesize

    44KB

  • memory/1308-60-0x000000000082D000-0x0000000000833000-memory.dmp
    Filesize

    24KB

  • memory/1308-78-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-62-0x000000000082D000-0x0000000000833000-memory.dmp
    Filesize

    24KB

  • memory/1308-63-0x000000000082D000-0x0000000000833000-memory.dmp
    Filesize

    24KB

  • memory/1308-66-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-67-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-65-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-64-0x000000000082D000-0x0000000000833000-memory.dmp
    Filesize

    24KB

  • memory/1308-69-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-68-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-70-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-71-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-74-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-75-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-54-0x000000002FFE1000-0x000000002FFE4000-memory.dmp
    Filesize

    12KB

  • memory/1308-72-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-59-0x000000000082D000-0x0000000000833000-memory.dmp
    Filesize

    24KB

  • memory/1308-61-0x000000000082D000-0x0000000000833000-memory.dmp
    Filesize

    24KB

  • memory/1308-86-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-77-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-85-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-84-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-83-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-82-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-81-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-80-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-76-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-87-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-109-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-58-0x0000000074DA1000-0x0000000074DA3000-memory.dmp
    Filesize

    8KB

  • memory/1308-57-0x0000000071C8D000-0x0000000071C98000-memory.dmp
    Filesize

    44KB

  • memory/1308-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1308-55-0x0000000070CA1000-0x0000000070CA3000-memory.dmp
    Filesize

    8KB

  • memory/1308-79-0x0000000000833000-0x0000000000837000-memory.dmp
    Filesize

    16KB

  • memory/1308-385-0x0000000071C8D000-0x0000000071C98000-memory.dmp
    Filesize

    44KB