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Analysis

  • max time kernel
    135s
  • max time network
    141s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    04/11/2022, 08:24

General

  • Target

    033289fc9c493780387a378e49df474c5e1057310fd521fe04a946997a85fa1c.xls

  • Size

    217KB

  • MD5

    8442e5bdd2df12d6ca090d5b8272a2a0

  • SHA1

    fe42e18f69f97aae9e7471c9c9a5699b63ea031c

  • SHA256

    033289fc9c493780387a378e49df474c5e1057310fd521fe04a946997a85fa1c

  • SHA512

    86cb6048fe0e41c2df29c5c95ace3aad8170813b36b9ec23e60ebf956bb434cc80cceedadd9c401c642126d948d0aee3c5ae49bb644ce3cc83117eee66fe7814

  • SSDEEP

    6144:zKpb8rGYrMPe3q7Q0XV5xtuEsi8/dg3yY+TAQXTHGUMEyP5p6f5jQmQ:TbGUMVWlbQ

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://wijsneusmedia.nl/cgi-bin/DvxmZndf0/

xlm40.dropper

http://brittknight.com/PHP/Aqxf09OugZ/

xlm40.dropper

http://nlasandbox.com/facebookpage/JFqg2Aqkl3UPZi6xGz/

xlm40.dropper

http://www.campusconindigital.org/moodle/LumMe/

Extracted

Family

emotet

Botnet

Epoch4

C2

45.235.8.30:8080

94.23.45.86:4143

119.59.103.152:8080

169.60.181.70:8080

164.68.99.3:8080

172.105.226.75:8080

107.170.39.149:8080

206.189.28.199:8080

1.234.2.232:8080

188.44.20.25:443

186.194.240.217:443

103.43.75.120:443

149.28.143.92:443

159.89.202.34:443

209.97.163.214:443

183.111.227.137:8080

129.232.188.93:443

139.59.126.41:443

110.232.117.186:8080

139.59.56.73:8080

eck1.plain
ecs1.plain

Signatures

  • Emotet

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

  • Process spawned unexpected child process 3 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Downloads MZ/PE file
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 4 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 12 IoCs
  • Suspicious use of SetWindowsHookEx 9 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\033289fc9c493780387a378e49df474c5e1057310fd521fe04a946997a85fa1c.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2692
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5024
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\SKIECbvwYdR\rvpBnLDXurqykd.dll"
        3⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:4536
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:4492
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4528
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\CgrfaFhJsS\tZqzTgAifLsSy.dll"
        3⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:1596

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\oxnv1.ooccxx

    Filesize

    529KB

    MD5

    b26f9e56f0bb25e9b56f0993c7bacdce

    SHA1

    5385516e04aaabf2d57b41f0f055ef843d6195d4

    SHA256

    13c7da69d2bf6ff43019c6c906fc4b132e6e4361160b892e5cfa641b411ae314

    SHA512

    79376415eb5b31b395b9faf7da4c9506bc7598ee8f2217ddbc31f681ea6094ee9fcc4ead9678b36d451bac39dca3dc840d6101184a1c64078143cf01f79e75fc

  • C:\Users\Admin\oxnv3.ooccxx

    Filesize

    529KB

    MD5

    ed7cfb6d6ec708931be0ed257500a99f

    SHA1

    f5a1263c399fc4dc97415dccd1a3168a8b837955

    SHA256

    260991072e60a01c41b556adc081eb5d8aadb4bf918a02cf67890b8fe3730fa2

    SHA512

    78a930519cbb7fd41882cb277488f3889e62ce23dc431a7eac6f0fdf28a446c77be5f5612419574c3edca065812e92507e93745b0bb30b63360452313121ba8d

  • \Users\Admin\oxnv1.ooccxx

    Filesize

    529KB

    MD5

    b26f9e56f0bb25e9b56f0993c7bacdce

    SHA1

    5385516e04aaabf2d57b41f0f055ef843d6195d4

    SHA256

    13c7da69d2bf6ff43019c6c906fc4b132e6e4361160b892e5cfa641b411ae314

    SHA512

    79376415eb5b31b395b9faf7da4c9506bc7598ee8f2217ddbc31f681ea6094ee9fcc4ead9678b36d451bac39dca3dc840d6101184a1c64078143cf01f79e75fc

  • \Users\Admin\oxnv3.ooccxx

    Filesize

    529KB

    MD5

    ed7cfb6d6ec708931be0ed257500a99f

    SHA1

    f5a1263c399fc4dc97415dccd1a3168a8b837955

    SHA256

    260991072e60a01c41b556adc081eb5d8aadb4bf918a02cf67890b8fe3730fa2

    SHA512

    78a930519cbb7fd41882cb277488f3889e62ce23dc431a7eac6f0fdf28a446c77be5f5612419574c3edca065812e92507e93745b0bb30b63360452313121ba8d

  • memory/2692-127-0x00007FF86E3D0000-0x00007FF86E3E0000-memory.dmp

    Filesize

    64KB

  • memory/2692-128-0x00007FF86E3D0000-0x00007FF86E3E0000-memory.dmp

    Filesize

    64KB

  • memory/2692-115-0x00007FF871D50000-0x00007FF871D60000-memory.dmp

    Filesize

    64KB

  • memory/2692-118-0x00007FF871D50000-0x00007FF871D60000-memory.dmp

    Filesize

    64KB

  • memory/2692-117-0x00007FF871D50000-0x00007FF871D60000-memory.dmp

    Filesize

    64KB

  • memory/2692-116-0x00007FF871D50000-0x00007FF871D60000-memory.dmp

    Filesize

    64KB

  • memory/5024-278-0x0000000000680000-0x00000000006AF000-memory.dmp

    Filesize

    188KB