Analysis

  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows10_x64
  • resource
    win10-20220414-en
  • submitted
    07-07-2022 04:14

General

  • Target

    feb23d6826e3d6ee55234a32bc00e4c612eb81a7e3f5cd7fbf493d77afcf4fa1.xls

  • Size

    95KB

  • MD5

    85e6b9b3179f1cd3ce11de537812d2e6

  • SHA1

    11bbb3506e06286316f77c8f5dba879f1668867b

  • SHA256

    feb23d6826e3d6ee55234a32bc00e4c612eb81a7e3f5cd7fbf493d77afcf4fa1

  • SHA512

    0d23cb01a6addf3504f01377ac01e41ac75249d6592a00e38f5a86b020aca8ffb278cf76406921276b29abaafe1cdf44351957ac9a02117cf493217d4cf80828

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://www.sunflowerlaboratory.in/fonts/79Tq62ly/

xlm40.dropper

http://dirigent.co.uk/vardagsekonomi/iC36jJ4J1cf/

xlm40.dropper

http://agtrade.hu/images/kiQYmOs2tSKq/

xlm40.dropper

https://www.zachboyle.com/wp-admin/EA470ZrTGNkuA/

Extracted

Family

emotet

Botnet

Epoch4

C2

94.23.45.86:4143

209.97.163.214:443

212.24.98.99:8080

103.43.75.120:443

183.111.227.137:8080

197.242.150.244:8080

129.232.188.93:443

159.65.88.10:8080

163.44.196.120:8080

51.161.73.194:443

164.90.222.65:443

159.89.202.34:443

1.234.2.232:8080

150.95.66.124:8080

51.91.76.89:8080

196.218.30.83:443

5.9.116.246:8080

146.59.226.45:443

173.212.193.249:8080

213.241.20.155:443

eck1.plain
ecs1.plain

Signatures

  • Emotet

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

  • Process spawned unexpected child process 4 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
  • 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 6 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 10 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\feb23d6826e3d6ee55234a32bc00e4c612eb81a7e3f5cd7fbf493d77afcf4fa1.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:3948
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3088
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\UdsbcArwtsLCrr\NHUpaysSu.dll"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:4320
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
      2⤵
      • Process spawned unexpected child process
      PID:4360
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
      2⤵
      • Process spawned unexpected child process
      PID:1708
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
      2⤵
      • Process spawned unexpected child process
      PID:4588

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\soci1.ocx
    Filesize

    312KB

    MD5

    173d4eb883b2de45e58cf2b0da704eaf

    SHA1

    e073d688664d58fc6943c20c84ece8ce2864f0a3

    SHA256

    f3de60a2ae73d50b5852f16b61983c2214bf8fdf4a1633b576fe53a7d26a3e86

    SHA512

    3ded417b682336cf8b4e77160129b0048aa5e104562041d0f7658c944a71f0cbd3092455f1610eccc14d166007db0676a72dfc3634c1e178be2ebbc69646c151

  • \Users\Admin\soci1.ocx
    Filesize

    312KB

    MD5

    173d4eb883b2de45e58cf2b0da704eaf

    SHA1

    e073d688664d58fc6943c20c84ece8ce2864f0a3

    SHA256

    f3de60a2ae73d50b5852f16b61983c2214bf8fdf4a1633b576fe53a7d26a3e86

    SHA512

    3ded417b682336cf8b4e77160129b0048aa5e104562041d0f7658c944a71f0cbd3092455f1610eccc14d166007db0676a72dfc3634c1e178be2ebbc69646c151

  • memory/1708-289-0x0000000000000000-mapping.dmp
  • memory/3088-270-0x0000000180000000-0x000000018002D000-memory.dmp
    Filesize

    180KB

  • memory/3088-267-0x0000000000000000-mapping.dmp
  • memory/3948-129-0x00007FFBC74B0000-0x00007FFBC74C0000-memory.dmp
    Filesize

    64KB

  • memory/3948-130-0x00007FFBC74B0000-0x00007FFBC74C0000-memory.dmp
    Filesize

    64KB

  • memory/3948-120-0x00007FFBCADE0000-0x00007FFBCADF0000-memory.dmp
    Filesize

    64KB

  • memory/3948-119-0x00007FFBCADE0000-0x00007FFBCADF0000-memory.dmp
    Filesize

    64KB

  • memory/3948-117-0x00007FFBCADE0000-0x00007FFBCADF0000-memory.dmp
    Filesize

    64KB

  • memory/3948-118-0x00007FFBCADE0000-0x00007FFBCADF0000-memory.dmp
    Filesize

    64KB

  • memory/4320-281-0x0000000000000000-mapping.dmp
  • memory/4360-280-0x0000000000000000-mapping.dmp
  • memory/4588-292-0x0000000000000000-mapping.dmp