Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows10_x64
  • resource
    win10-20220223-en
  • submitted
    30-03-2022 16:59

General

  • Target

    71fb1a43b1015b32a8fc7d309a8b06c25c3bfea18e0b63d4990a781b3df797eb.xls

  • Size

    106KB

  • MD5

    1876d2146f4594b4087fea95453132ee

  • SHA1

    d187367a63197a752a0eb78a750608e260f21cd3

  • SHA256

    71fb1a43b1015b32a8fc7d309a8b06c25c3bfea18e0b63d4990a781b3df797eb

  • SHA512

    5e97151019c0eee65de6e9878a4e48a3bf7fe474f2cafb417207854cee21765e73a1479cabbe0477c5438eb4b581387d43ef3f57fb623c53a36b677aadc00dbd

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://www.gessersh.com/wp-includes/ZwQLepW/

Extracted

Family

emotet

Botnet

Epoch4

C2

104.131.11.205:443

138.197.109.175:8080

187.84.80.182:443

79.143.187.147:443

189.232.46.161:443

51.91.76.89:8080

103.43.46.182:443

206.189.28.199:8080

45.176.232.124:443

107.182.225.142:8080

72.15.201.15:8080

209.250.246.206:443

164.68.99.3:8080

160.16.142.56:8080

134.122.66.193:8080

45.118.115.99:8080

183.111.227.137:8080

209.126.98.206:8080

1.234.2.232:8080

159.65.88.10:8080

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.

  • suricata: ET MALWARE W32/Emotet CnC Beacon 3

    suricata: ET MALWARE W32/Emotet CnC Beacon 3

  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 1 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 6 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\71fb1a43b1015b32a8fc7d309a8b06c25c3bfea18e0b63d4990a781b3df797eb.xls"
    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:3752
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\urtj.dll
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2676
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Gubqbnfbd\qxnanzlxtioofn.ksg"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2772

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\urtj.dll

    Filesize

    380KB

    MD5

    4e79f59c087d1a2c4cb5f6fb022dfe56

    SHA1

    05e032721e8f97c5964f0e86cae160c396a4e9b9

    SHA256

    27a9482da19aab9cf49bdd11b5be63295794d72dde3e6c85b3d994beabc7ba1e

    SHA512

    2baae34f7f4ce6fa975e038972cea9a22adbcae089cabb0dddbfd11688d2cef4bc21ee79c9d34b0489f5f42803119f0a9c14107ecfb0295cf53700748c6f03c5

  • \Users\Admin\urtj.dll

    Filesize

    380KB

    MD5

    4e79f59c087d1a2c4cb5f6fb022dfe56

    SHA1

    05e032721e8f97c5964f0e86cae160c396a4e9b9

    SHA256

    27a9482da19aab9cf49bdd11b5be63295794d72dde3e6c85b3d994beabc7ba1e

    SHA512

    2baae34f7f4ce6fa975e038972cea9a22adbcae089cabb0dddbfd11688d2cef4bc21ee79c9d34b0489f5f42803119f0a9c14107ecfb0295cf53700748c6f03c5

  • memory/2772-282-0x00000000044E0000-0x0000000004504000-memory.dmp

    Filesize

    144KB

  • memory/3752-114-0x00007FFA39C30000-0x00007FFA39C40000-memory.dmp

    Filesize

    64KB

  • memory/3752-115-0x00007FFA39C30000-0x00007FFA39C40000-memory.dmp

    Filesize

    64KB

  • memory/3752-116-0x00007FFA39C30000-0x00007FFA39C40000-memory.dmp

    Filesize

    64KB

  • memory/3752-117-0x00007FFA39C30000-0x00007FFA39C40000-memory.dmp

    Filesize

    64KB