Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    22-04-2022 00:10

General

  • Target

    jaommfyz.xlsm

  • Size

    46KB

  • MD5

    969869a41c8f52fc0853eaaba007be0f

  • SHA1

    7d1c58a56647a9f3ede204d60fa0e6813d1ad8d1

  • SHA256

    dcc6409e704780116523a3e6ca35edf1399b381568d26b6d0373d1d9e00be491

  • SHA512

    c4a1a7ff06d4b59ed39640ca213bc1640907b304b613e47b9fe3561cd7caf6acb4f0c9a0fe19c9bb79b86dcbcae51bebec1831c732396cb1294b2860bd387c86

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://eles-tech.com/css/KzMysMqFMs/

xlm40.dropper

http://gonorthhalifax.com/wp-content/yTmYyLbTKZV2czsUO/

xlm40.dropper

https://txpcrescue.com/cgi-bin/5tSO8/

Extracted

Family

emotet

Botnet

Epoch4

C2

68.183.94.239:80

104.131.11.205:443

138.197.109.175:8080

187.84.80.182:443

79.143.187.147:443

216.158.226.206:443

167.99.115.35:8080

212.24.98.99:8080

1.234.21.73:7080

206.189.28.199:8080

158.69.222.101:443

164.68.99.3:8080

188.44.20.25:443

185.157.82.211:8080

134.122.66.193:8080

196.218.30.83:443

72.15.201.15:8080

5.9.116.246:8080

176.104.106.96:8080

153.126.146.25:7080

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.

  • Downloads MZ/PE file
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\jaommfyz.xlsm
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1648
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\xewn.dll
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:1640
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Tgzvz\kfhuv.sbo"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:564

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\xewn.dll

    Filesize

    848KB

    MD5

    5117b5a70c6955e414da04f24e3627d5

    SHA1

    cbdd1d54bfe4a902e118b9e29dfbe3b270859e3d

    SHA256

    b57f04c704d4068dbbd39d6c60e0ca99024ad5c898ffd06a18de1b11c42de298

    SHA512

    21a4da860f47ce939a781272e1413cef6a6c081caffdc59984bc7454aefab8e2537ef38ffda1d8e786728f1c752220ecb94602e30caa4b63dd580251bab0595e

  • \Users\Admin\xewn.dll

    Filesize

    848KB

    MD5

    5117b5a70c6955e414da04f24e3627d5

    SHA1

    cbdd1d54bfe4a902e118b9e29dfbe3b270859e3d

    SHA256

    b57f04c704d4068dbbd39d6c60e0ca99024ad5c898ffd06a18de1b11c42de298

    SHA512

    21a4da860f47ce939a781272e1413cef6a6c081caffdc59984bc7454aefab8e2537ef38ffda1d8e786728f1c752220ecb94602e30caa4b63dd580251bab0595e

  • memory/564-68-0x00000000008B0000-0x00000000008D4000-memory.dmp

    Filesize

    144KB

  • memory/1640-63-0x00000000003A0000-0x00000000003C4000-memory.dmp

    Filesize

    144KB

  • memory/1648-54-0x000000002F821000-0x000000002F824000-memory.dmp

    Filesize

    12KB

  • memory/1648-55-0x0000000071301000-0x0000000071303000-memory.dmp

    Filesize

    8KB

  • memory/1648-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1648-57-0x00000000722ED000-0x00000000722F8000-memory.dmp

    Filesize

    44KB

  • memory/1648-58-0x0000000076421000-0x0000000076423000-memory.dmp

    Filesize

    8KB