Analysis

  • max time kernel
    155s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    18-01-2022 13:16

General

  • Target

    47dec9ab272eab4fbea599f3c77112859ad26fbdbbc90c8cfcbaf523b21ccbba.xlsm

  • Size

    99KB

  • MD5

    0b83e54e31c9e5ba97f5cc8c972ef989

  • SHA1

    b6a45e024dc0e3a5e20ad6249bcdbdb1445200e3

  • SHA256

    47dec9ab272eab4fbea599f3c77112859ad26fbdbbc90c8cfcbaf523b21ccbba

  • SHA512

    f19b6835f9084251e0ebd9b01442b06e8c10a4e255d3c92a1092c800d097a15b0f61ac1f562ad04b3d02c827dbe3b23e2ccd1f42b02bedc15e141b7998e1d4d6

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://auto.lambolero.com/f1nygync/IOENXupeXUt/

Extracted

Family

emotet

Botnet

Epoch5

C2

45.138.98.34:80

69.16.218.101:8080

51.210.242.234:8080

185.148.168.220:8080

142.4.219.173:8080

54.38.242.185:443

191.252.103.16:80

104.131.62.48:8080

62.171.178.147:8080

217.182.143.207:443

168.197.250.14:80

37.44.244.177:8080

66.42.57.149:443

210.57.209.142:8080

159.69.237.188:443

116.124.128.206:8080

128.199.192.135:8080

195.154.146.35:443

185.148.168.15:8080

195.77.239.39:8080

eck1.plain
ecs1.plain

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.

  • Blocklisted process makes network request 3 IoCs
  • Downloads MZ/PE file
  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • 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 2 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\47dec9ab272eab4fbea599f3c77112859ad26fbdbbc90c8cfcbaf523b21ccbba.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3620
    • C:\Windows\SysWow64\rundll32.exe
      C:\Windows\SysWow64\rundll32.exe ..\ourl.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2092
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\ourl.ocx",DllRegisterServer
        3⤵
        • Loads dropped DLL
        • Drops file in System32 directory
        • Suspicious use of WriteProcessMemory
        PID:4248
        • C:\Windows\SysWOW64\rundll32.exe
          C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Sbpnoj\umjsfucuwvyf.qrj",ZLkUEBTxlij
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4584
          • C:\Windows\SysWOW64\rundll32.exe
            C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Sbpnoj\umjsfucuwvyf.qrj",DllRegisterServer
            5⤵
            • Blocklisted process makes network request
            • Suspicious behavior: EnumeratesProcesses
            PID:4560

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

3
T1082

Query Registry

2
T1012

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\ourl.ocx
    MD5

    aa0a4347b7e5b0c59c517c03b2e21fc1

    SHA1

    855f29428fca0a6d55cad546494ad7c7fdd2935d

    SHA256

    0698cb58404a0c551e34dc4f201bc5e5977ffe8c6a3d7abbe887428e1e2f79fc

    SHA512

    34691fa1b7112ed9f15fb5290d9a0ba5f178c114b963b6ac195861d29d279460b36835272c50103c9f61da5e3ec894cc247e8bb0e7994d8d5cf12f904386052f

  • \Users\Admin\ourl.ocx
    MD5

    aa0a4347b7e5b0c59c517c03b2e21fc1

    SHA1

    855f29428fca0a6d55cad546494ad7c7fdd2935d

    SHA256

    0698cb58404a0c551e34dc4f201bc5e5977ffe8c6a3d7abbe887428e1e2f79fc

    SHA512

    34691fa1b7112ed9f15fb5290d9a0ba5f178c114b963b6ac195861d29d279460b36835272c50103c9f61da5e3ec894cc247e8bb0e7994d8d5cf12f904386052f

  • \Users\Admin\ourl.ocx
    MD5

    aa0a4347b7e5b0c59c517c03b2e21fc1

    SHA1

    855f29428fca0a6d55cad546494ad7c7fdd2935d

    SHA256

    0698cb58404a0c551e34dc4f201bc5e5977ffe8c6a3d7abbe887428e1e2f79fc

    SHA512

    34691fa1b7112ed9f15fb5290d9a0ba5f178c114b963b6ac195861d29d279460b36835272c50103c9f61da5e3ec894cc247e8bb0e7994d8d5cf12f904386052f

  • memory/2092-263-0x0000000000E00000-0x0000000000E28000-memory.dmp
    Filesize

    160KB

  • memory/3620-121-0x00007FFBBFC80000-0x00007FFBBFC90000-memory.dmp
    Filesize

    64KB

  • memory/3620-128-0x00007FFBBD0D0000-0x00007FFBBD0E0000-memory.dmp
    Filesize

    64KB

  • memory/3620-129-0x00007FFBBD0D0000-0x00007FFBBD0E0000-memory.dmp
    Filesize

    64KB

  • memory/3620-115-0x00007FFBBFC80000-0x00007FFBBFC90000-memory.dmp
    Filesize

    64KB

  • memory/3620-118-0x00007FFBBFC80000-0x00007FFBBFC90000-memory.dmp
    Filesize

    64KB

  • memory/3620-117-0x00007FFBBFC80000-0x00007FFBBFC90000-memory.dmp
    Filesize

    64KB

  • memory/3620-116-0x00007FFBBFC80000-0x00007FFBBFC90000-memory.dmp
    Filesize

    64KB

  • memory/4248-267-0x0000000004CB0000-0x0000000004CD8000-memory.dmp
    Filesize

    160KB

  • memory/4248-269-0x00000000051A0000-0x00000000051C8000-memory.dmp
    Filesize

    160KB

  • memory/4248-271-0x0000000005280000-0x00000000052A8000-memory.dmp
    Filesize

    160KB

  • memory/4248-273-0x0000000005410000-0x0000000005438000-memory.dmp
    Filesize

    160KB

  • memory/4248-275-0x0000000005470000-0x0000000005498000-memory.dmp
    Filesize

    160KB

  • memory/4248-278-0x00000000055F0000-0x0000000005618000-memory.dmp
    Filesize

    160KB

  • memory/4560-280-0x0000000001160000-0x0000000001188000-memory.dmp
    Filesize

    160KB

  • memory/4560-283-0x0000000004F20000-0x0000000004F48000-memory.dmp
    Filesize

    160KB