Overview

overview

10

Static

static

8

PRMS_822004851.xls

windows7_x64

10

PRMS_822004851.xls

windows10_x64

10

Analysis

  • max time kernel
    142s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    14-10-2021 05:07

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General

  • Target

    PRMS_822004851.xls

  • Size

    134KB

  • MD5

    0fabeef31b401b43f6dad8a373d55d4a

  • SHA1

    f42f36c2fbf269bba7db101991e1a5be2c185b64

  • SHA256

    4ff4e135e3c8f23427763b635c0b38e3d7a4957e8ded530bbc1ded32c156c4c4

  • SHA512

    69ee8d329595ae8630543a9cc4ecc82e1152b9816db02df8b2794fb786b0992f4d52250dfb9f56b93f6cbdbdc7068433dbbc45869bcd86aab1a0b02e5a1dbc85

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://190.14.37.220/44483.2137790509.dat
xlm40.dropper

http://23.106.125.233/44483.2137790509.dat
xlm40.dropper

http://178.23.190.199/44483.2137790509.dat

Signatures

  • Process spawned unexpected child process 3 IoCs

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

  • 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 9 IoCs
    adwarespyware
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 21 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\PRMS_822004851.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1544
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 -silent ..\Celod.wac
      2⤵
      • Process spawned unexpected child process
      PID:1484
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 -silent ..\Celod.wac1
      2⤵
      • Process spawned unexpected child process
      PID:1508
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 -silent ..\Celod.wac2
      2⤵
      • Process spawned unexpected child process
      PID:1560

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/1484-57-0x0000000000000000-mapping.dmp
    Download
  • memory/1484-58-0x00000000751D1000-0x00000000751D3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1508-59-0x0000000000000000-mapping.dmp
    Download
  • memory/1544-53-0x000000002F341000-0x000000002F344000-memory.dmp
    Filesize

    12KB

    Download
  • memory/1544-54-0x00000000712B1000-0x00000000712B3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1544-55-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

    Download
  • memory/1544-56-0x0000000006090000-0x0000000006092000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1560-61-0x0000000000000000-mapping.dmp
    Download