Analysis

  • max time kernel
    144s
  • max time network
    146s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    10/11/2022, 10:39

General

  • Target

    4a7f651f6f9f9eff4a8b87759ebdddaa1a44864529ed091c2abc22f0abbdb27e.xls

  • Size

    91KB

  • MD5

    399a939e6df80529463a5f01d5a833c0

  • SHA1

    3f56a9e691c3069c71d7180d4fdc0f94652ba2c2

  • SHA256

    4a7f651f6f9f9eff4a8b87759ebdddaa1a44864529ed091c2abc22f0abbdb27e

  • SHA512

    a403222612e32ededa1d0f0d33e5f0b3f5b5a359e78cf804facf7469a2004833fcef9471502669c410341ff7038842168d4f187d819634aa9e113d1e04170a1f

  • SSDEEP

    1536:wKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgGbCXuZH4gb4CEn9J4Z/is9o2:wKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgm

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://bosny.com/aspnet_client/R50QIOGjmvVlr/

xlm40.dropper

http://navylin.com/autopoisonous/4fZQW/

xlm40.dropper

http://asrani.garudaputih.com/nutabalong/bJYqoUIr99qNfoPDx/

xlm40.dropper

http://db.rikaz.tech/lCx76IlkrBtEsqNFA7/zPYJzpOnzstNOiRHob/

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 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 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\4a7f651f6f9f9eff4a8b87759ebdddaa1a44864529ed091c2abc22f0abbdb27e.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2408
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3928
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\WnFlZumwELQyw\YmNBcPnvPuLSZN.dll"
        3⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:4892
    • 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:3288
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\BteWzCSaZbCWynBDa\sYnanoQOEX.dll"
        3⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:912
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      PID:948
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      PID:904

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\elv1.ooocccxxx

          Filesize

          621KB

          MD5

          871ea9a8e1604e3cfc16dd15a61294fa

          SHA1

          2139e23aa41026d93489d3849a5229dc0cfb1bad

          SHA256

          12fefee2092330f9c0d9e6b30141cbb41c44aa39fbbbe8cdfca9b98b3069881d

          SHA512

          61b2b91af02dad955630c64ca9200feca20293af14bd25b9d4d7109dd9662aaed0981ea93cf298c93ef5e2c19d393e67f308464c59deaabd7e254d05091b780a

        • C:\Users\Admin\elv2.ooocccxxx

          Filesize

          621KB

          MD5

          d8d225350e7e511598ca5e62139ab35b

          SHA1

          9840cf8f5a2d06c74ac3986f62c8c951c87c99cc

          SHA256

          e5d587bc2bffd9e7c7508bc09518aa67ee8c05286ebd09bbbe1323c4fb560966

          SHA512

          751a6bfc41d086e6327b895f2f06bb3fa4653919e1280dc0786fb4ff989304b03baeaee6dc65533870e1653a46979a70e26851893b9e41c146242adf7862307f

        • \Users\Admin\elv1.ooocccxxx

          Filesize

          621KB

          MD5

          871ea9a8e1604e3cfc16dd15a61294fa

          SHA1

          2139e23aa41026d93489d3849a5229dc0cfb1bad

          SHA256

          12fefee2092330f9c0d9e6b30141cbb41c44aa39fbbbe8cdfca9b98b3069881d

          SHA512

          61b2b91af02dad955630c64ca9200feca20293af14bd25b9d4d7109dd9662aaed0981ea93cf298c93ef5e2c19d393e67f308464c59deaabd7e254d05091b780a

        • \Users\Admin\elv2.ooocccxxx

          Filesize

          621KB

          MD5

          d8d225350e7e511598ca5e62139ab35b

          SHA1

          9840cf8f5a2d06c74ac3986f62c8c951c87c99cc

          SHA256

          e5d587bc2bffd9e7c7508bc09518aa67ee8c05286ebd09bbbe1323c4fb560966

          SHA512

          751a6bfc41d086e6327b895f2f06bb3fa4653919e1280dc0786fb4ff989304b03baeaee6dc65533870e1653a46979a70e26851893b9e41c146242adf7862307f

        • memory/2408-128-0x00007FF83A290000-0x00007FF83A2A0000-memory.dmp

          Filesize

          64KB

        • memory/2408-321-0x00007FF83D030000-0x00007FF83D040000-memory.dmp

          Filesize

          64KB

        • memory/2408-324-0x00007FF83D030000-0x00007FF83D040000-memory.dmp

          Filesize

          64KB

        • memory/2408-323-0x00007FF83D030000-0x00007FF83D040000-memory.dmp

          Filesize

          64KB

        • memory/2408-322-0x00007FF83D030000-0x00007FF83D040000-memory.dmp

          Filesize

          64KB

        • memory/2408-115-0x00007FF83D030000-0x00007FF83D040000-memory.dmp

          Filesize

          64KB

        • memory/2408-127-0x00007FF83A290000-0x00007FF83A2A0000-memory.dmp

          Filesize

          64KB

        • memory/2408-118-0x00007FF83D030000-0x00007FF83D040000-memory.dmp

          Filesize

          64KB

        • memory/2408-117-0x00007FF83D030000-0x00007FF83D040000-memory.dmp

          Filesize

          64KB

        • memory/2408-116-0x00007FF83D030000-0x00007FF83D040000-memory.dmp

          Filesize

          64KB

        • memory/3928-265-0x0000000000D00000-0x0000000000D2E000-memory.dmp

          Filesize

          184KB