Analysis

  • max time kernel
    1796s
  • max time network
    1602s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    23-09-2021 15:55

General

  • Target

    new_offer[2021.09.23_12-51].xlsb

  • Size

    577KB

  • MD5

    f8baa37fe058abfc4961dd2861f8cff7

  • SHA1

    0803db1ace419c076502c5cb2dc515192a543a49

  • SHA256

    33bef7886db16838071d3294ddfa4413b13af1f3927ed429e9416a836d5759d0

  • SHA512

    31cddc3c2268bb890a8454486d4d265608a42e9faca7bcb6e5fbdc876122cb69e95989f361f8e7accf2ad384e31503905b8560d135b1be780de3cb2434cc7f9d

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://iqwasithealth.com/wp-content/uploads/2019/06/a435gfhs109.cms

Signatures

  • Process spawned unexpected child process 2 IoCs

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

  • 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: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of SetWindowsHookEx 5 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\new_offer[2021.09.23_12-51].xlsb
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:612
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe process call create 'regsvr32 -s C:\Users\Public\codec.dll'
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of AdjustPrivilegeToken
      PID:656
  • C:\Windows\system32\regsvr32.exe
    regsvr32 -s C:\Users\Public\codec.dll
    1⤵
    • Process spawned unexpected child process
    PID:1656

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/612-54-0x000000002F071000-0x000000002F074000-memory.dmp
    Filesize

    12KB

  • memory/612-55-0x0000000071B11000-0x0000000071B13000-memory.dmp
    Filesize

    8KB

  • memory/612-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/656-57-0x0000000000000000-mapping.dmp
  • memory/1656-58-0x000007FEFC271000-0x000007FEFC273000-memory.dmp
    Filesize

    8KB