Analysis

  • max time kernel
    147s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    12-05-2022 09:28

General

  • Target

    Documento.xls

  • Size

    40KB

  • MD5

    bf1a84bcee85983c92040cc52a43dd17

  • SHA1

    eedb1bbdc50095d087ac9fd3eb0e4695217c6d0d

  • SHA256

    bcb53af88c2eb7a3e04c8874854a6c4fc0a2b9890ed39cc4bc9c1f7ef6380563

  • SHA512

    fab1981d877b6bbb041723e1d19b4c019413e447ba193b5bd1a2f0b59ad8cbfbf9e54e06b6fed407ac82f03bec84ca6ba5fa0aba5aa0d4cd792c1da4632eb860

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://www.itesmeitic.com/term/IFjx5ElE0ldr8wDDHjub/

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.

  • 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 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 19 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\Documento.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:1688
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe ..\wurod.ocx
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1728
      • C:\Windows\system32\regsvr32.exe
        ..\wurod.ocx
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1056
        • C:\Windows\system32\regsvr32.exe
          C:\Windows\system32\regsvr32.exe "C:\Windows\system32\DSaXFbihNMsWpjYV\MInVwb.dll"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1356

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
    Filesize

    60KB

    MD5

    b9f21d8db36e88831e5352bb82c438b3

    SHA1

    4a3c330954f9f65a2f5fd7e55800e46ce228a3e2

    SHA256

    998e0209690a48ed33b79af30fc13851e3e3416bed97e3679b6030c10cab361e

    SHA512

    d4a2ac7c14227fbaf8b532398fb69053f0a0d913273f6917027c8cadbba80113fdbec20c2a7eb31b7bb57c99f9fdeccf8576be5f39346d8b564fc72fb1699476

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    Filesize

    344B

    MD5

    d738bf1763dd82f5d42a6b5abe4ac758

    SHA1

    edf1dfd086a781a224cca5b18fb4cfe4e8ad7057

    SHA256

    2443f86abddd72efdcec65918e95ca50b3bad50c8fbc27281b18fdd3a510b7c6

    SHA512

    6cf1fac9c4e2edae6479ab3d64a2386c4e037dfceed0d71adf88871c4b82870ae3ce19f87ae3dd0a637d8df35c49e1f791ad11289de09c87be00288d606f6a01

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

    764KB

    MD5

    56922642df76d515651215578a10d873

    SHA1

    aac8eb5cb0fa3ef3fdc7e0ec034a1325bd75990e

    SHA256

    d7bbba0e0a4b8818716055080b36fd4e51eb883f5f49896bd50995377e0088f4

    SHA512

    e9795738e8484677143dbb359db02f0002d31876954a0263788fd5fe2c1a231bff4a007905e034fd6f3f842490d746a41393d80849fd47fa66b38482fb738714

  • \Users\Admin\wurod.ocx
    Filesize

    764KB

    MD5

    56922642df76d515651215578a10d873

    SHA1

    aac8eb5cb0fa3ef3fdc7e0ec034a1325bd75990e

    SHA256

    d7bbba0e0a4b8818716055080b36fd4e51eb883f5f49896bd50995377e0088f4

    SHA512

    e9795738e8484677143dbb359db02f0002d31876954a0263788fd5fe2c1a231bff4a007905e034fd6f3f842490d746a41393d80849fd47fa66b38482fb738714

  • \Users\Admin\wurod.ocx
    Filesize

    764KB

    MD5

    56922642df76d515651215578a10d873

    SHA1

    aac8eb5cb0fa3ef3fdc7e0ec034a1325bd75990e

    SHA256

    d7bbba0e0a4b8818716055080b36fd4e51eb883f5f49896bd50995377e0088f4

    SHA512

    e9795738e8484677143dbb359db02f0002d31876954a0263788fd5fe2c1a231bff4a007905e034fd6f3f842490d746a41393d80849fd47fa66b38482fb738714

  • memory/1056-64-0x000007FEFC061000-0x000007FEFC063000-memory.dmp
    Filesize

    8KB

  • memory/1056-63-0x0000000000000000-mapping.dmp
  • memory/1056-66-0x00000000003E0000-0x0000000000410000-memory.dmp
    Filesize

    192KB

  • memory/1356-69-0x0000000000000000-mapping.dmp
  • memory/1688-58-0x0000000076391000-0x0000000076393000-memory.dmp
    Filesize

    8KB

  • memory/1688-54-0x000000002F161000-0x000000002F164000-memory.dmp
    Filesize

    12KB

  • memory/1688-57-0x00000000728ED000-0x00000000728F8000-memory.dmp
    Filesize

    44KB

  • memory/1688-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1688-55-0x0000000071901000-0x0000000071903000-memory.dmp
    Filesize

    8KB

  • memory/1728-59-0x0000000000000000-mapping.dmp