Analysis

  • max time kernel
    104s
  • max time network
    58s
  • platform
    windows7_x64
  • resource
    win7-20220715-en
  • resource tags

    arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system
  • submitted
    05-08-2022 07:51

General

  • Target

    账号密码表.xls.exe

  • Size

    1.5MB

  • MD5

    2d2e2831ae6351fbee7810bfc0d10955

  • SHA1

    52a95894b8551743058a1bfe56e38919f43819c4

  • SHA256

    ffeb7d694c82c2dfa5344d082b61386561202ccde69fc11257916b0da515c922

  • SHA512

    239d6ad7b0654146b8c5c08a9b2f07a770cfb0ddabbbcad03109f82b0e78494f80097a98de7d55487f90f41ac25e09f028b12f60c5fc30863d1c871dfbff8eb5

Score
8/10
upx

Malware Config

Signatures

  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • GoLang User-Agent 1 IoCs

    Uses default user-agent string defined by GoLang HTTP packages.

  • 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 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\账号密码表.xls.exe
    "C:\Users\Admin\AppData\Local\Temp\账号密码表.xls.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:588
    • \??\c:\windows\system32\cmd.exe
      c:\windows\system32\cmd.exe /C start 涉疫轨迹检查表.xls
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2040
      • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
        "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde
        3⤵
        • Enumerates system info in registry
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of SetWindowsHookEx
        PID:1744

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\涉疫轨迹检查表.xls
    Filesize

    23KB

    MD5

    f5a8f916c2b8117dbf1cc1ea3319c8da

    SHA1

    b8e4b9e1247c54ed45bba90cd2f1aaedc0713372

    SHA256

    11e29e4983eab5bbc95b11b06c8ad11a7375017b99b10fde72f2669e5288e6be

    SHA512

    05f5189a4f09a442d07d9440156b4f18c67284130d545c79cd701c72af6a5b030df1fd7c83f46d934749eb28aef32936216ae4eb96d19129a5b3743b562f3dd8

  • memory/588-87-0x0000000000400000-0x0000000000910000-memory.dmp
    Filesize

    5.1MB

  • memory/588-77-0x0000000000400000-0x0000000000910000-memory.dmp
    Filesize

    5.1MB

  • memory/588-85-0x0000000000400000-0x0000000000910000-memory.dmp
    Filesize

    5.1MB

  • memory/1744-78-0x0000000000000000-mapping.dmp
  • memory/1744-80-0x00000000716E1000-0x00000000716E3000-memory.dmp
    Filesize

    8KB

  • memory/1744-81-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1744-82-0x00000000726CD000-0x00000000726D8000-memory.dmp
    Filesize

    44KB

  • memory/1744-83-0x0000000076231000-0x0000000076233000-memory.dmp
    Filesize

    8KB

  • memory/1744-79-0x000000002F331000-0x000000002F334000-memory.dmp
    Filesize

    12KB

  • memory/1744-86-0x00000000726CD000-0x00000000726D8000-memory.dmp
    Filesize

    44KB

  • memory/1744-88-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1744-89-0x00000000726CD000-0x00000000726D8000-memory.dmp
    Filesize

    44KB

  • memory/2040-54-0x0000000000000000-mapping.dmp
  • memory/2040-55-0x000007FEFC091000-0x000007FEFC093000-memory.dmp
    Filesize

    8KB