Analysis

  • max time kernel
    149s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-11-2022 02:38

General

  • Target

    3 908.xls

  • Size

    91KB

  • MD5

    6718425c2cb38bd932ccdaece719a0de

  • SHA1

    7ad84b9260f337f97329c0d92025818d942d04d6

  • SHA256

    f9b476777865d3370bfa9d4bfc226610c70cda30691427b05256240c4c08d77f

  • SHA512

    7fcfc4807f86d09701292f40275dc632df611f9629a3a72b696eabf484d7d247ba6f66a797051ead629641049c2e1e65e8fefa126601ad4f4586fc713909283c

  • SSDEEP

    1536:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgMbCXuZH4gb4CEn9J4ZGX3O:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgS

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://encuadernacionesartis.com/Vk2Z1Na/IZpyySkbU/

xlm40.dropper

http://eznetb.synology.me/@eaDir/E36Y/

xlm40.dropper

http://bytesendesign.nl/cgi-bin/LolX/

xlm40.dropper

http://choltice.eu/mwc/syl3Y/

Extracted

Family

emotet

Botnet

Epoch5

C2

202.28.34.99:8080

80.211.107.116:8080

175.126.176.79:8080

218.38.121.17:443

139.196.72.155:8080

103.71.99.57:8080

87.106.97.83:7080

178.62.112.199:8080

64.227.55.231:8080

46.101.98.60:8080

54.37.228.122:443

128.199.217.206:443

190.145.8.4:443

209.239.112.82:8080

85.214.67.203:8080

198.199.70.22:8080

128.199.242.164:8080

178.238.225.252:8080

103.85.95.4:8080

103.126.216.86:443

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.

  • Downloads MZ/PE file
  • Loads dropped DLL 4 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 12 IoCs
  • Suspicious use of WriteProcessMemory 12 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\3 908.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4020
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      PID:884
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3340
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\UeStX\ldCHbmog.dll"
        3⤵
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:3728
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4392
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\KoAsaso\ehwoS.dll"
        3⤵
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:3424
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      PID:4832

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\elv2.ooocccxxx

    Filesize

    413KB

    MD5

    ce5a53ca3bdfc7db6702705b79864d89

    SHA1

    967fb62027940eee14da54919bb8df1ddb95e0c8

    SHA256

    fc345d151b44639631fc6b88a979462dfba3aa5c281ee3a526c550359268c694

    SHA512

    7ae165d8a7fc291079dfb1c949c2bc89e760bdefa0a567a1c61c59b5228ced7ed80fb1c467c9cadd4bf34d4075f296f7f53027b288d76f67df0b84040abc66b0

  • C:\Users\Admin\elv2.ooocccxxx

    Filesize

    413KB

    MD5

    ce5a53ca3bdfc7db6702705b79864d89

    SHA1

    967fb62027940eee14da54919bb8df1ddb95e0c8

    SHA256

    fc345d151b44639631fc6b88a979462dfba3aa5c281ee3a526c550359268c694

    SHA512

    7ae165d8a7fc291079dfb1c949c2bc89e760bdefa0a567a1c61c59b5228ced7ed80fb1c467c9cadd4bf34d4075f296f7f53027b288d76f67df0b84040abc66b0

  • C:\Users\Admin\elv3.ooocccxxx

    Filesize

    413KB

    MD5

    95fb9cd2076252f006ab75729b2ff123

    SHA1

    3533333c00905c4408de94b6d21c8d48ee06511b

    SHA256

    4dfa363918e577746ec2b1e28a21f73cdca3c15ec7fa703210fb15a52707b46f

    SHA512

    339894f3a19f7528efbd9d04b86d459aad2b2e65e5b375c7a59911b9dffc76cb32c978c72acd1f9516714241b5d11d536c410a49224afc788b8d112e85141f2e

  • C:\Users\Admin\elv3.ooocccxxx

    Filesize

    413KB

    MD5

    95fb9cd2076252f006ab75729b2ff123

    SHA1

    3533333c00905c4408de94b6d21c8d48ee06511b

    SHA256

    4dfa363918e577746ec2b1e28a21f73cdca3c15ec7fa703210fb15a52707b46f

    SHA512

    339894f3a19f7528efbd9d04b86d459aad2b2e65e5b375c7a59911b9dffc76cb32c978c72acd1f9516714241b5d11d536c410a49224afc788b8d112e85141f2e

  • C:\Users\Admin\elv4.ooocccxxx

    Filesize

    12B

    MD5

    bc6e6f16b8a077ef5fbc8d59d0b931b9

    SHA1

    e02aa1b106d5c7c6a98def2b13005d5b84fd8dc8

    SHA256

    4ae7c3b6ac0beff671efa8cf57386151c06e58ca53a78d83f36107316cec125f

    SHA512

    f986313ffca1a20c61fa2cff5cb597f1af10a650aecca497a746e8d11d1b6bf33e9e6a25eb7ba26af2fcfaa70472d8250b908419a188a16e17191fc26f423f52

  • C:\Windows\System32\KoAsaso\ehwoS.dll

    Filesize

    413KB

    MD5

    95fb9cd2076252f006ab75729b2ff123

    SHA1

    3533333c00905c4408de94b6d21c8d48ee06511b

    SHA256

    4dfa363918e577746ec2b1e28a21f73cdca3c15ec7fa703210fb15a52707b46f

    SHA512

    339894f3a19f7528efbd9d04b86d459aad2b2e65e5b375c7a59911b9dffc76cb32c978c72acd1f9516714241b5d11d536c410a49224afc788b8d112e85141f2e

  • C:\Windows\System32\UeStX\ldCHbmog.dll

    Filesize

    413KB

    MD5

    ce5a53ca3bdfc7db6702705b79864d89

    SHA1

    967fb62027940eee14da54919bb8df1ddb95e0c8

    SHA256

    fc345d151b44639631fc6b88a979462dfba3aa5c281ee3a526c550359268c694

    SHA512

    7ae165d8a7fc291079dfb1c949c2bc89e760bdefa0a567a1c61c59b5228ced7ed80fb1c467c9cadd4bf34d4075f296f7f53027b288d76f67df0b84040abc66b0

  • memory/884-140-0x0000000000000000-mapping.dmp

  • memory/3340-144-0x0000000180000000-0x000000018002E000-memory.dmp

    Filesize

    184KB

  • memory/3340-141-0x0000000000000000-mapping.dmp

  • memory/3424-158-0x0000000000000000-mapping.dmp

  • memory/3728-147-0x0000000000000000-mapping.dmp

  • memory/4020-135-0x00007FFB5EEB0000-0x00007FFB5EEC0000-memory.dmp

    Filesize

    64KB

  • memory/4020-134-0x00007FFB5EEB0000-0x00007FFB5EEC0000-memory.dmp

    Filesize

    64KB

  • memory/4020-136-0x00007FFB5EEB0000-0x00007FFB5EEC0000-memory.dmp

    Filesize

    64KB

  • memory/4020-133-0x00007FFB5EEB0000-0x00007FFB5EEC0000-memory.dmp

    Filesize

    64KB

  • memory/4020-139-0x00007FFB5C890000-0x00007FFB5C8A0000-memory.dmp

    Filesize

    64KB

  • memory/4020-138-0x00007FFB5C890000-0x00007FFB5C8A0000-memory.dmp

    Filesize

    64KB

  • memory/4020-137-0x00007FFB5EEB0000-0x00007FFB5EEC0000-memory.dmp

    Filesize

    64KB

  • memory/4392-149-0x0000000000000000-mapping.dmp

  • memory/4832-163-0x0000000000000000-mapping.dmp