Analysis

  • max time kernel
    4294210s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    30-03-2022 15:09

General

  • Target

    c45d183d92c76327654823f385f7ce37.xls

  • Size

    106KB

  • MD5

    c45d183d92c76327654823f385f7ce37

  • SHA1

    14b49cae34a09672364f1bc03bbdfbc6b49c7a93

  • SHA256

    c1991922f16591d906546a6926fe301adb9fc66062b1dbd56e400a7cef59014e

  • SHA512

    5c26e46c221687d4ddadb5e3ac05d033940730b592fc9f75416829ae2c5e650d950737edfed37ec597cf10b1a1e43bda2e3bb70fda66bf20dca161ac19e7702f

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

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

Extracted

Family

emotet

Botnet

Epoch4

C2

45.176.232.125:443

138.197.109.175:8080

187.84.80.182:443

79.143.187.147:443

189.232.46.161:443

103.70.28.102:8080

134.122.66.193:8080

151.106.112.196:8080

160.16.142.56:8080

212.24.98.99:8080

188.44.20.25:443

197.242.150.244:8080

206.189.28.199:8080

172.104.251.154:8080

103.43.46.182:443

203.114.109.124:443

103.75.201.2:443

58.227.42.236:80

201.94.166.162:443

189.126.111.200:7080

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.

  • suricata: ET MALWARE W32/Emotet CnC Beacon 3

    suricata: ET MALWARE W32/Emotet CnC Beacon 3

  • 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\c45d183d92c76327654823f385f7ce37.xls
    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:1336
    • 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:1648
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Nukmbeyeringhf\hcxekc.dav"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:900

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    a86f2f5a59f6f3e522a92bbf19b490ff

    SHA1

    5d94861e704916a6e63ec386998e4766f552a934

    SHA256

    b398025ef26d68b646d128b5d69d8364845c327246a8899d15071f1e38a4cc9d

    SHA512

    9d7f52decf115732cc4bfba1142b2a111d45b3275113225dc8b94abfc36887e0c580446e9e21408bd48ed193a256d5aebcf6da28acdd9e647f70670de74288c7

  • C:\Users\Admin\urtj.dll

    Filesize

    431KB

    MD5

    dd44766ddce88fe522cd938e62b7fb89

    SHA1

    ad0c8727c69c26e6361b41df5be647cd00cac214

    SHA256

    fa2443522077eb579d752db17c7b98c132cd38770f365216264086b06f3a343c

    SHA512

    2ec865fb3061e56f77240f91763b39dec1b75920603e0d9ed02e2f82885857e773f7616d895e14202043b03658c54f6e1fc345b3b05c74f4363741865152b7bf

  • \Users\Admin\urtj.dll

    Filesize

    431KB

    MD5

    dd44766ddce88fe522cd938e62b7fb89

    SHA1

    ad0c8727c69c26e6361b41df5be647cd00cac214

    SHA256

    fa2443522077eb579d752db17c7b98c132cd38770f365216264086b06f3a343c

    SHA512

    2ec865fb3061e56f77240f91763b39dec1b75920603e0d9ed02e2f82885857e773f7616d895e14202043b03658c54f6e1fc345b3b05c74f4363741865152b7bf

  • memory/900-67-0x0000000000210000-0x0000000000234000-memory.dmp

    Filesize

    144KB

  • memory/1336-54-0x000000002F801000-0x000000002F804000-memory.dmp

    Filesize

    12KB

  • memory/1336-55-0x00000000710F1000-0x00000000710F3000-memory.dmp

    Filesize

    8KB

  • memory/1336-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1336-57-0x00000000720DD000-0x00000000720E8000-memory.dmp

    Filesize

    44KB

  • memory/1648-59-0x0000000075561000-0x0000000075563000-memory.dmp

    Filesize

    8KB

  • memory/1648-63-0x0000000000450000-0x0000000000474000-memory.dmp

    Filesize

    144KB