Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10-20220310-en
  • submitted
    30-03-2022 15:00

General

  • Target

    c1991922f16591d906546a6926fe301adb9fc66062b1dbd56e400a7cef59014e.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

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.

  • 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 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\c1991922f16591d906546a6926fe301adb9fc66062b1dbd56e400a7cef59014e.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1564
    • 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:1796
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Paqakcpvba\owmna.kcd"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:3696

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\urtj.dll

    Filesize

    380KB

    MD5

    ce47e73088c8d1042014b62127d0e9f6

    SHA1

    62449a9ec68512f3e476cbf383e9a24a2cee5b9c

    SHA256

    6e7c3fc44e9e5c73679e939dfc6078e9417eaaaad62c5cef199cc3675fc3e15a

    SHA512

    67444792f8dff2e66f7419fdcf10e4721942e88f1d149a89a8b320ea725d33a0efe8c337109aaa9d0cb464f28d4908d1607f583feef809bd887a5ae45f071988

  • \Users\Admin\urtj.dll

    Filesize

    380KB

    MD5

    ce47e73088c8d1042014b62127d0e9f6

    SHA1

    62449a9ec68512f3e476cbf383e9a24a2cee5b9c

    SHA256

    6e7c3fc44e9e5c73679e939dfc6078e9417eaaaad62c5cef199cc3675fc3e15a

    SHA512

    67444792f8dff2e66f7419fdcf10e4721942e88f1d149a89a8b320ea725d33a0efe8c337109aaa9d0cb464f28d4908d1607f583feef809bd887a5ae45f071988

  • memory/1564-118-0x00007FFA617B0000-0x00007FFA617C0000-memory.dmp

    Filesize

    64KB

  • memory/1564-119-0x00007FFA617B0000-0x00007FFA617C0000-memory.dmp

    Filesize

    64KB

  • memory/1564-120-0x00007FFA617B0000-0x00007FFA617C0000-memory.dmp

    Filesize

    64KB

  • memory/1564-121-0x00007FFA617B0000-0x00007FFA617C0000-memory.dmp

    Filesize

    64KB

  • memory/1796-274-0x0000000004A30000-0x0000000004A54000-memory.dmp

    Filesize

    144KB