Analysis

  • max time kernel
    147s
  • max time network
    141s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    18-01-2022 12:56

General

  • Target

    c0dea966c1ef3760d6bd0bd050428a336dee656946c3b8e30470cb22994980dd.xlsm

  • Size

    99KB

  • MD5

    af036b49b0012f82cac46cea6c6735c4

  • SHA1

    3e65237d088f845001a6affddd3acc74c37c9b91

  • SHA256

    c0dea966c1ef3760d6bd0bd050428a336dee656946c3b8e30470cb22994980dd

  • SHA512

    1a5090c646c27e4eaaf45a1eaf3ed4ea13825a330d79597212f819ab90ab5a414dbdb3968f6717c45d122aa21c454ca9366c9ec78743223c3a5d16a19fcf2065

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://avionxpress.com/lp/T9b1Bga4FdDfP5HI/

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\c0dea966c1ef3760d6bd0bd050428a336dee656946c3b8e30470cb22994980dd.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2620
    • 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:640
      • 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:1424
        • C:\Windows\SysWOW64\rundll32.exe
          C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Zwteqlzuxamykca\gcdkldhimn.bdx",vOxRuOHYUf
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2696
          • C:\Windows\SysWOW64\rundll32.exe
            C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Zwteqlzuxamykca\gcdkldhimn.bdx",DllRegisterServer
            5⤵
            • Blocklisted process makes network request
            • Suspicious behavior: EnumeratesProcesses
            PID:3524

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

    562dab32542a479f5047898e2db9dfa4

    SHA1

    3123cba17796285c7176e333d6c46eedb74c5f7d

    SHA256

    7b996a7128a06f089f0b4a46465ef2027383b348f8577d25e77a12f65877dec5

    SHA512

    16898a79955cec1723c8f731df380c603f80ae44d96f3a40206d926af31c52633c5f27ded975d89afec849403ae83bcc8543882c74cdc83f920c1c16084c9994

  • \Users\Admin\ourl.ocx
    MD5

    562dab32542a479f5047898e2db9dfa4

    SHA1

    3123cba17796285c7176e333d6c46eedb74c5f7d

    SHA256

    7b996a7128a06f089f0b4a46465ef2027383b348f8577d25e77a12f65877dec5

    SHA512

    16898a79955cec1723c8f731df380c603f80ae44d96f3a40206d926af31c52633c5f27ded975d89afec849403ae83bcc8543882c74cdc83f920c1c16084c9994

  • \Users\Admin\ourl.ocx
    MD5

    562dab32542a479f5047898e2db9dfa4

    SHA1

    3123cba17796285c7176e333d6c46eedb74c5f7d

    SHA256

    7b996a7128a06f089f0b4a46465ef2027383b348f8577d25e77a12f65877dec5

    SHA512

    16898a79955cec1723c8f731df380c603f80ae44d96f3a40206d926af31c52633c5f27ded975d89afec849403ae83bcc8543882c74cdc83f920c1c16084c9994

  • memory/1424-1540-0x00000000006F0000-0x0000000000718000-memory.dmp
    Filesize

    160KB

  • memory/1424-1542-0x0000000000730000-0x0000000000758000-memory.dmp
    Filesize

    160KB

  • memory/1424-1544-0x0000000000880000-0x00000000008A8000-memory.dmp
    Filesize

    160KB

  • memory/1424-1546-0x00000000008B0000-0x00000000008D8000-memory.dmp
    Filesize

    160KB

  • memory/1424-1549-0x0000000004620000-0x0000000004648000-memory.dmp
    Filesize

    160KB

  • memory/2620-126-0x00007FFB04400000-0x00007FFB04410000-memory.dmp
    Filesize

    64KB

  • memory/2620-116-0x00007FFB04400000-0x00007FFB04410000-memory.dmp
    Filesize

    64KB

  • memory/2620-115-0x00007FFB04400000-0x00007FFB04410000-memory.dmp
    Filesize

    64KB

  • memory/2696-1550-0x00000000049E0000-0x0000000004A08000-memory.dmp
    Filesize

    160KB

  • memory/3524-1556-0x0000000005370000-0x0000000005398000-memory.dmp
    Filesize

    160KB