Resubmissions

14-07-2022 15:34

220714-sz6nwshceq 10

01-07-2022 05:30

220701-f7cdssfgc6 10

Analysis

  • max time kernel
    150s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    01-07-2022 05:30

General

  • Target

    8026e96ade96c109afdeb9bd32d7cdb47cafc596dedd943dbd74828ca684cf22.exe

  • Size

    31KB

  • MD5

    b7eabb9d09f243bcb2c47d411028b07b

  • SHA1

    b65366292b2d5d917f6aaee8634e635f4b5308ef

  • SHA256

    8026e96ade96c109afdeb9bd32d7cdb47cafc596dedd943dbd74828ca684cf22

  • SHA512

    5285067287e4cdb4f0ee121eaf2fce2ae91d1bec0f7ebfff657dc452493db3c637b54d0cb495590bf92253ffcd4aa9681b015c258717966ef89a9b83859c300f

Score
10/10

Malware Config

Extracted

Family

buer

C2

http://looad.top/

http://looad02.top/

eqqm7,,ill^a+qlm,

eqqm7,,ill^a-/+qlm,

Signatures

  • Buer

    Buer is a new modular loader first seen in August 2019.

  • Buer Loader 5 IoCs

    Detects Buer loader in memory or disk.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8026e96ade96c109afdeb9bd32d7cdb47cafc596dedd943dbd74828ca684cf22.exe
    "C:\Users\Admin\AppData\Local\Temp\8026e96ade96c109afdeb9bd32d7cdb47cafc596dedd943dbd74828ca684cf22.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1884
    • C:\Users\Admin\AppData\Roaming\ActiveX\manager.exe
      C:\Users\Admin\AppData\Roaming\ActiveX\manager.exe "C:\Users\Admin\AppData\Local\Temp\8026e96ade96c109afdeb9bd32d7cdb47cafc596dedd943dbd74828ca684cf22.exe" ensgJJ
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:4312
      • C:\Windows\SysWOW64\secinit.exe
        C:\Users\Admin\AppData\Roaming\ActiveX\manager.exe
        3⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:3680

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\ActiveX\manager.exe
    Filesize

    31KB

    MD5

    b7eabb9d09f243bcb2c47d411028b07b

    SHA1

    b65366292b2d5d917f6aaee8634e635f4b5308ef

    SHA256

    8026e96ade96c109afdeb9bd32d7cdb47cafc596dedd943dbd74828ca684cf22

    SHA512

    5285067287e4cdb4f0ee121eaf2fce2ae91d1bec0f7ebfff657dc452493db3c637b54d0cb495590bf92253ffcd4aa9681b015c258717966ef89a9b83859c300f

  • C:\Users\Admin\AppData\Roaming\ActiveX\manager.exe
    Filesize

    31KB

    MD5

    b7eabb9d09f243bcb2c47d411028b07b

    SHA1

    b65366292b2d5d917f6aaee8634e635f4b5308ef

    SHA256

    8026e96ade96c109afdeb9bd32d7cdb47cafc596dedd943dbd74828ca684cf22

    SHA512

    5285067287e4cdb4f0ee121eaf2fce2ae91d1bec0f7ebfff657dc452493db3c637b54d0cb495590bf92253ffcd4aa9681b015c258717966ef89a9b83859c300f

  • memory/3680-133-0x0000000000000000-mapping.dmp
  • memory/3680-134-0x0000000000480000-0x000000000048B000-memory.dmp
    Filesize

    44KB

  • memory/3680-135-0x0000000000480000-0x000000000048B000-memory.dmp
    Filesize

    44KB

  • memory/4312-130-0x0000000000000000-mapping.dmp