Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10-20220414-en
  • submitted
    07-07-2022 04:24

General

  • Target

    64ed2086756dc9182af7b7c48a7555382105eda09db496d6be0dfb703d5979ab.xls

  • Size

    95KB

  • MD5

    21db9a15033232c8de2741a7dfa350b1

  • SHA1

    2436629f905b691f262d30fe5541d29e3d94e226

  • SHA256

    64ed2086756dc9182af7b7c48a7555382105eda09db496d6be0dfb703d5979ab

  • SHA512

    c23b3469b9bd9cedd69d6eea670b455a864334c1503d3181db2cc33801d61db8f58e94366bf63764ba36af6f87b08eda119507ddd9bb5927f0791916b2ef3c02

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\64ed2086756dc9182af7b7c48a7555382105eda09db496d6be0dfb703d5979ab.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:3896
    • 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:3580
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\MyeRK\Yrjv.dll"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:5040
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
      2⤵
      • Process spawned unexpected child process
      PID:3880
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
      2⤵
      • Process spawned unexpected child process
      PID:4624
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
      2⤵
      • Process spawned unexpected child process
      PID:3508

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

    f48a369d748e286b262959a745eb5929

    SHA1

    6d0d202886f38bb94fea04e0c72de3b9f8c5ee65

    SHA256

    b46082c606863a69a396dcbd2b471aa71ce52fd430e9e5482cb96869a2ca93ba

    SHA512

    afb2085c1eda4d8a130ff0d2332b7dce8a8a0d54c0dfcad24fa249e733014fa0c7e2c5d1fbcbf24c857625c675d705059b4625247102127088fc067b1f8133f1

  • \Users\Admin\soci1.ocx
    Filesize

    312KB

    MD5

    f48a369d748e286b262959a745eb5929

    SHA1

    6d0d202886f38bb94fea04e0c72de3b9f8c5ee65

    SHA256

    b46082c606863a69a396dcbd2b471aa71ce52fd430e9e5482cb96869a2ca93ba

    SHA512

    afb2085c1eda4d8a130ff0d2332b7dce8a8a0d54c0dfcad24fa249e733014fa0c7e2c5d1fbcbf24c857625c675d705059b4625247102127088fc067b1f8133f1

  • memory/3508-273-0x0000000000000000-mapping.dmp
  • memory/3580-251-0x0000000180000000-0x000000018002D000-memory.dmp
    Filesize

    180KB

  • memory/3580-248-0x0000000000000000-mapping.dmp
  • memory/3880-261-0x0000000000000000-mapping.dmp
  • memory/3896-126-0x00007FF8341A0000-0x00007FF8341B0000-memory.dmp
    Filesize

    64KB

  • memory/3896-127-0x00007FF8341A0000-0x00007FF8341B0000-memory.dmp
    Filesize

    64KB

  • memory/3896-117-0x00007FF837C10000-0x00007FF837C20000-memory.dmp
    Filesize

    64KB

  • memory/3896-116-0x00007FF837C10000-0x00007FF837C20000-memory.dmp
    Filesize

    64KB

  • memory/3896-114-0x00007FF837C10000-0x00007FF837C20000-memory.dmp
    Filesize

    64KB

  • memory/3896-115-0x00007FF837C10000-0x00007FF837C20000-memory.dmp
    Filesize

    64KB

  • memory/4624-270-0x0000000000000000-mapping.dmp
  • memory/5040-262-0x0000000000000000-mapping.dmp