Analysis

  • max time kernel
    144s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-03-2023 13:11

General

  • Target

    Form.doc

  • Size

    519.3MB

  • MD5

    91269e08234fdd4423510512fd44d46f

  • SHA1

    599a3716579e3b8c9abc0e56841f0aad7d2a733b

  • SHA256

    29f19644f30582b98f0a79ead304c2ab09abc59d4e5b244b880b32cb45ac1492

  • SHA512

    e00aecd82952d691d22e2f8ee7d00cec1db90fbbfa05159f9c2ba3f7fd92b969b8e1199741b1179a28f8d05e4b873602af62e0f46a9807bbdb09aeb867286811

  • SSDEEP

    6144:QDuxuMOZCBtANveapnaWVgsaNlbfXhoEHC87pnkTnlzIWZ4:18yGZZak8fxJB1e5IWZ4

Malware Config

Extracted

Family

emotet

Botnet

Epoch4

C2

129.232.188.93:443

164.90.222.65:443

159.65.88.10:8080

172.105.226.75:8080

115.68.227.76:8080

187.63.160.88:80

169.57.156.166:8080

185.4.135.165:8080

153.126.146.25:7080

197.242.150.244:8080

139.59.126.41:443

186.194.240.217:443

103.132.242.26:8080

206.189.28.199:8080

163.44.196.120:8080

95.217.221.146:8080

159.89.202.34:443

119.59.103.152:8080

183.111.227.137:8080

201.94.166.162:443

eck1.plain
ecs1.plain

Signatures

  • Emotet

    Emotet is a trojan that is primarily spread through spam emails.

  • Process spawned unexpected child process 1 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Form.doc" /o ""
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2800
    • C:\Windows\System32\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\141230.tmp"
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2008
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\AUYBuKBwKS\ubAg.dll"
        3⤵
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:428

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\141230.tmp

    Filesize

    519.5MB

    MD5

    8369f8222def57832e649eb39fd2e1cb

    SHA1

    d42f215ae5af681e8e0125c7a8399759803f6f01

    SHA256

    290192ceb0b157166d9ae46d4d8980ea2840e91b97411c49dba08da45125e429

    SHA512

    2e9a47cdddc536cd455fa42774bf55d193aea100aa61adaf20f155f9199132b014da2c19327b984eb09537170d40af59fde81396aea3228cf767d31fa42732e6

  • C:\Users\Admin\AppData\Local\Temp\141230.tmp

    Filesize

    519.5MB

    MD5

    8369f8222def57832e649eb39fd2e1cb

    SHA1

    d42f215ae5af681e8e0125c7a8399759803f6f01

    SHA256

    290192ceb0b157166d9ae46d4d8980ea2840e91b97411c49dba08da45125e429

    SHA512

    2e9a47cdddc536cd455fa42774bf55d193aea100aa61adaf20f155f9199132b014da2c19327b984eb09537170d40af59fde81396aea3228cf767d31fa42732e6

  • C:\Users\Admin\AppData\Local\Temp\141233.zip

    Filesize

    804KB

    MD5

    7821adc2f937cd7f7f6fc3499ceda7c3

    SHA1

    5e4c4bd7a474c4bebe39b3741ccbc54e524692d4

    SHA256

    95944d22d1e39c3d3f1b7f35fc225b81fd937d711a662b219fa94422e78c8f17

    SHA512

    f850146e6bd3a1a43da0f01db570c8881642aabf3a315db429a1bb2834cfe7baed183f575cd3774948ef5cd485f7a042d580dbb48f77f47a081e967273bb85cb

  • C:\Users\Admin\AppData\Roaming\Microsoft\UProof\ExcludeDictionaryEN0409.lex

    Filesize

    2B

    MD5

    f3b25701fe362ec84616a93a45ce9998

    SHA1

    d62636d8caec13f04e28442a0a6fa1afeb024bbb

    SHA256

    b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

    SHA512

    98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

  • C:\Windows\System32\AUYBuKBwKS\ubAg.dll

    Filesize

    519.5MB

    MD5

    8369f8222def57832e649eb39fd2e1cb

    SHA1

    d42f215ae5af681e8e0125c7a8399759803f6f01

    SHA256

    290192ceb0b157166d9ae46d4d8980ea2840e91b97411c49dba08da45125e429

    SHA512

    2e9a47cdddc536cd455fa42774bf55d193aea100aa61adaf20f155f9199132b014da2c19327b984eb09537170d40af59fde81396aea3228cf767d31fa42732e6

  • memory/428-194-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2008-182-0x0000000001050000-0x0000000001051000-memory.dmp

    Filesize

    4KB

  • memory/2008-179-0x0000000180000000-0x000000018002D000-memory.dmp

    Filesize

    180KB

  • memory/2800-137-0x00007FFC76130000-0x00007FFC76140000-memory.dmp

    Filesize

    64KB

  • memory/2800-136-0x00007FFC76130000-0x00007FFC76140000-memory.dmp

    Filesize

    64KB

  • memory/2800-134-0x00007FFC76130000-0x00007FFC76140000-memory.dmp

    Filesize

    64KB

  • memory/2800-138-0x00007FFC738E0000-0x00007FFC738F0000-memory.dmp

    Filesize

    64KB

  • memory/2800-133-0x00007FFC76130000-0x00007FFC76140000-memory.dmp

    Filesize

    64KB

  • memory/2800-135-0x00007FFC76130000-0x00007FFC76140000-memory.dmp

    Filesize

    64KB

  • memory/2800-139-0x00007FFC738E0000-0x00007FFC738F0000-memory.dmp

    Filesize

    64KB

  • memory/2800-221-0x00007FFC76130000-0x00007FFC76140000-memory.dmp

    Filesize

    64KB

  • memory/2800-220-0x00007FFC76130000-0x00007FFC76140000-memory.dmp

    Filesize

    64KB

  • memory/2800-222-0x00007FFC76130000-0x00007FFC76140000-memory.dmp

    Filesize

    64KB

  • memory/2800-223-0x00007FFC76130000-0x00007FFC76140000-memory.dmp

    Filesize

    64KB