Analysis

  • max time kernel
    148s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20230621-en
  • resource tags

    arch:x64arch:x86image:win7-20230621-enlocale:en-usos:windows7-x64system
  • submitted
    30-06-2023 12:42

General

  • Target

    CTI-935358145879.xlsm

  • Size

    46KB

  • MD5

    cb4e59e39a6eef5b8752681b6f871e56

  • SHA1

    ebe9658d642bfafc88bf21a48e8eb455066d6926

  • SHA256

    5d31e83b1dda43ba478dbf1bbd5b1ab90021810860493110ac6175f69e58a93d

  • SHA512

    abc66b29e01464d7b867afb49d00d7659438ce13de235eb694d6dd9eda7b7c641024e76a5e43fb43e35b1fa8f6091cd9605df9cd23f91b6c0b706ed1118edea8

  • SSDEEP

    768:smBlntZhEI2YmxNskmoKjBvK3HqK88F/G6YzATUfJnXYS6oRM:tBlntTEvDLmXi3JvG6YzATOJnXYSXRM

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://eles-tech.com/css/KzMysMqFMs/

xlm40.dropper

http://gonorthhalifax.com/wp-content/yTmYyLbTKZV2czsUO/

Signatures

  • Process spawned unexpected child process 1 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 use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 7 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\CTI-935358145879.xlsm
    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:1724
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\xewn.dll
      2⤵
      • Process spawned unexpected child process
      PID:1352

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    585fe98ecf811ab9cd84c772fae4d9bf

    SHA1

    8166f40d9cd5edfe52ef3b139af173353095f0b4

    SHA256

    e0a6431bc6bd35565f674113125c2e609fa6fa9a905f7425dcb6d3a87e4b4c5e

    SHA512

    b7c339df5781f77e30b337580f7741124c162b8ce5c44330bf6af2bfe0cb7fb0600547db51eaa25c009e36cc9da98087c6cdba378a0499198680fa50691ed79f

  • C:\Users\Admin\AppData\Local\Temp\Cab54E8.tmp

    Filesize

    62KB

    MD5

    3ac860860707baaf32469fa7cc7c0192

    SHA1

    c33c2acdaba0e6fa41fd2f00f186804722477639

    SHA256

    d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

    SHA512

    d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

  • C:\Users\Admin\AppData\Local\Temp\Tar55B5.tmp

    Filesize

    164KB

    MD5

    4ff65ad929cd9a367680e0e5b1c08166

    SHA1

    c0af0d4396bd1f15c45f39d3b849ba444233b3a2

    SHA256

    c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

    SHA512

    f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

  • C:\Users\Admin\xewn.dll

    Filesize

    1.2MB

    MD5

    00bd09bd9886df717f4362f5f2981182

    SHA1

    5c18787f8a8abe3661e5c3968ab2b7db7ab7255d

    SHA256

    0405ab4ee5817d96544780517eb377b48df7f85f489abf96b64f2403bcd03585

    SHA512

    ae25283d466340377c42d92f70f18b7cece64b00d5e7a19278e93f2e81cfaf7b1394050f090bb459f79befaea264bc65e8b6ebcfc1835b7d85f929f25d1a3e44

  • memory/1724-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB