Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    18-11-2022 01:45

General

  • Target

    c4dfa5fa-fbc3-4a45-828a-9523aab3fd02.xls

  • Size

    255KB

  • MD5

    4a39482f8109165a29e5f2982c57a895

  • SHA1

    1bd892084eb45b67781ec482c9e4e5e860241b32

  • SHA256

    3809cb404f536733812960e2c738de5fded540678064ff026583e48e4f7b3025

  • SHA512

    d7e8f5361a9e9b82b2f51dd62e570659719ad34079db8d355e852760cd97974efc74315ff0cee5e611fa8b5528468f34b2dbf9205e40371a89b97752c7e77261

  • SSDEEP

    6144:6Kpb8rGYrMPe3q7Q0XV5xtuEsi8/dgUNiwrfx9rNFMMrttRzV5Dz3UxqC8LUcSd:YNbDjP9XH5XIqZLnSd

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://demarsoft.com/ALPHAINSTALLS.US/lTsjpA6/

xlm40.dropper

http://clockworktradeservices.com/wp-admin/uFRWXkuTnDAbQtIO/

xlm40.dropper

http://cloudxml.com.br/L45R4qJJFH/ESXAIhm/

xlm40.dropper

https://copunupo.ac.zm/cgi-bin/bNoAgU9/

Extracted

Family

emotet

Botnet

Epoch5

C2

178.238.225.252:8080

139.196.72.155:8080

36.67.23.59:443

103.56.149.105:8080

37.44.244.177:8080

85.25.120.45:8080

202.134.4.210:7080

78.47.204.80:443

83.229.80.93:8080

93.104.209.107:8080

80.211.107.116:8080

165.22.254.236:8080

104.244.79.94:443

185.148.169.10:8080

190.145.8.4:443

175.126.176.79:8080

139.59.80.108:8080

188.165.79.151:443

128.199.217.206:443

64.227.55.231:8080

ecs1.plain
eck1.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.

  • Downloads MZ/PE file
  • Loads dropped DLL 2 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 3 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 40 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\c4dfa5fa-fbc3-4a45-828a-9523aab3fd02.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:1232
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1312
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1176
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1620
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1540
      • C:\Windows\system32\regsvr32.exe
        /S ..\oxnv4.ooccxx
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1748
        • C:\Windows\system32\regsvr32.exe
          C:\Windows\system32\regsvr32.exe "C:\Windows\system32\EkmARXQDrjsdb\thSBcOKH.dll"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1788

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\oxnv4.ooccxx

    Filesize

    581KB

    MD5

    37d22f36a898981e427ec8b879abf355

    SHA1

    7aef4834faffdbd02b31680ae2a6822b02429ce0

    SHA256

    ab6d2aeb1c4332025322cb78570973fcaa86ca2f0a4353d6c6c226c1c4cfa906

    SHA512

    4f966d4e04b81a79a19f8198c14deb5942412b6c7231e710099edf5fed687b024c3f3546eaee849276f584dc5e325d16d44f44d18e6dc8126e6917acf05dba7a

  • \Users\Admin\oxnv4.ooccxx

    Filesize

    581KB

    MD5

    37d22f36a898981e427ec8b879abf355

    SHA1

    7aef4834faffdbd02b31680ae2a6822b02429ce0

    SHA256

    ab6d2aeb1c4332025322cb78570973fcaa86ca2f0a4353d6c6c226c1c4cfa906

    SHA512

    4f966d4e04b81a79a19f8198c14deb5942412b6c7231e710099edf5fed687b024c3f3546eaee849276f584dc5e325d16d44f44d18e6dc8126e6917acf05dba7a

  • \Users\Admin\oxnv4.ooccxx

    Filesize

    581KB

    MD5

    37d22f36a898981e427ec8b879abf355

    SHA1

    7aef4834faffdbd02b31680ae2a6822b02429ce0

    SHA256

    ab6d2aeb1c4332025322cb78570973fcaa86ca2f0a4353d6c6c226c1c4cfa906

    SHA512

    4f966d4e04b81a79a19f8198c14deb5942412b6c7231e710099edf5fed687b024c3f3546eaee849276f584dc5e325d16d44f44d18e6dc8126e6917acf05dba7a

  • memory/1176-62-0x0000000000000000-mapping.dmp

  • memory/1232-55-0x0000000070F31000-0x0000000070F33000-memory.dmp

    Filesize

    8KB

  • memory/1232-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1232-57-0x0000000071F1D000-0x0000000071F28000-memory.dmp

    Filesize

    44KB

  • memory/1232-58-0x0000000075291000-0x0000000075293000-memory.dmp

    Filesize

    8KB

  • memory/1232-59-0x0000000071F1D000-0x0000000071F28000-memory.dmp

    Filesize

    44KB

  • memory/1232-54-0x000000002FC91000-0x000000002FC94000-memory.dmp

    Filesize

    12KB

  • memory/1312-60-0x0000000000000000-mapping.dmp

  • memory/1540-66-0x0000000000000000-mapping.dmp

  • memory/1620-64-0x0000000000000000-mapping.dmp

  • memory/1748-71-0x000007FEFB8E1000-0x000007FEFB8E3000-memory.dmp

    Filesize

    8KB

  • memory/1748-70-0x0000000000000000-mapping.dmp

  • memory/1748-73-0x0000000180000000-0x0000000180030000-memory.dmp

    Filesize

    192KB

  • memory/1788-76-0x0000000000000000-mapping.dmp