Overview

overview

10

Static

static

10

aavwelnn.xlsm

windows7_x64

10

aavwelnn.xlsm

windows10-2004_x64

10

Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    22-05-2022 05:17

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General

  • Target

    aavwelnn.xlsm

  • Size

    46KB

  • MD5

    9bd3baddbdf78a835956cc1c694489dd

  • SHA1

    3116ae5b338a252985d5bd2c035245fec1b06d45

  • SHA256

    7df06f0d1cb53d8ad793f5f1906a65fa0c80bd1d8719f55aa7f26f9b89c1226e

  • SHA512

    3c8d56af7d933cb4149abd463c7ef009eca2da903992fa8ae8009c943ede57fd9dc95d6d02455b660555fcd7ed223081175623b513d928e9f9301d5c74ce0d4a

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.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\aavwelnn.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4476
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\xewn.dll
      2⤵
      • Process spawned unexpected child process
      PID:2208
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
    1⤵
      PID:2776

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Credential Access

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    2
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\xewn.dll
      Filesize

      679KB

      MD5

      0743b2373b4ff3aa7f4351da07bf9ddb

      SHA1

      30f2ac6ae21062bfaed0b8a6f4d47ff2aebc6344

      SHA256

      4dd64997e4a5ebee46fd154015ebc0647642618a869ab3092b87959798e341a2

      SHA512

      e1bb60db7691d4c8c3800d68e09d49502943609dd7b94e2738500df6381e754987112c128baf43106fad20e5b35445fa2856eeabd50e8b88f9291fbc0487c9ae

      Download Submit
    • memory/2208-137-0x0000000000000000-mapping.dmp
      Download
    • memory/4476-130-0x00007FFE379B0000-0x00007FFE379C0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/4476-131-0x00007FFE379B0000-0x00007FFE379C0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/4476-132-0x00007FFE379B0000-0x00007FFE379C0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/4476-133-0x00007FFE379B0000-0x00007FFE379C0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/4476-134-0x00007FFE379B0000-0x00007FFE379C0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/4476-135-0x00007FFE35080000-0x00007FFE35090000-memory.dmp
      Filesize

      64KB

      Download
    • memory/4476-136-0x00007FFE35080000-0x00007FFE35090000-memory.dmp
      Filesize

      64KB

      Download