Analysis

  • max time kernel
    108s
  • max time network
    157s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    09/11/2022, 19:04

General

  • Target

    Receipt attached.xls

  • Size

    255KB

  • MD5

    97443a20d7b0dc4a3407cd7015fa63a0

  • SHA1

    9774e1e4f1de3ce1873dc67ddb650bc3abd0fc73

  • SHA256

    48b2c5bcc179258578a14fa8047f0e7813eaec00e2ef5cb8e29500c64bd0ba47

  • SHA512

    b867dad61478168dbd803f7dd918c34a63c0bc9c175c8e0beba3f08d8e5f78b2e0520882691e5e4ad989272150402a574a1665ec2ce08283d56fd328160706fb

  • SSDEEP

    6144:NKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgoNiwrfx9rNFMMrttRzV5Dz3UxqC8LUcSH:fNbDjP9XH5XIqZLnSH

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://caimari.com/wp-includes/E3/

xlm40.dropper

http://www.detertecnica.com/var/yROsVkd/

xlm40.dropper

http://borntobefree.org.za/d3hEMgx7B/gKjYZXet98DzbCPzMsQ/

xlm40.dropper

http://bigm.ir/wp-admin/jzIV5U90h9qbK7WK8RTZ/

Extracted

Family

emotet

Botnet

Epoch4

C2

45.235.8.30:8080

94.23.45.86:4143

119.59.103.152:8080

169.60.181.70:8080

164.68.99.3:8080

172.105.226.75:8080

107.170.39.149:8080

206.189.28.199:8080

1.234.2.232:8080

188.44.20.25:443

186.194.240.217:443

103.43.75.120:443

149.28.143.92:443

159.89.202.34:443

209.97.163.214:443

183.111.227.137:8080

129.232.188.93:443

139.59.126.41:443

110.232.117.186:8080

139.59.56.73:8080

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 1 IoCs
  • Adds Run key to start application 2 TTPs 2 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 6 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 10 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\Receipt attached.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2424
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:4496
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:4920
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2244
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\NMxIuWrPv\PEKSZZKyt.dll"
        3⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:3784
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:4540

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\oxnv3.ooccxx

          Filesize

          575KB

          MD5

          bdaeb8b6b0e786eb314b9c1e54277e08

          SHA1

          0e832f9c3b89bb5a1abc676830438b5badc7f7a9

          SHA256

          9a33550659d3b05c4fbb80fd66eb939f93300edd15881b0baddbf663873c888e

          SHA512

          b1b12ed62f10863cdb61827df94eb3922a0f07441fff356e0e51f82302c712801aea8a6429dcaee44efe7eaf732dbb751d7eff2a92a71c657f0ceb983ef89b6d

        • \Users\Admin\oxnv3.ooccxx

          Filesize

          575KB

          MD5

          bdaeb8b6b0e786eb314b9c1e54277e08

          SHA1

          0e832f9c3b89bb5a1abc676830438b5badc7f7a9

          SHA256

          9a33550659d3b05c4fbb80fd66eb939f93300edd15881b0baddbf663873c888e

          SHA512

          b1b12ed62f10863cdb61827df94eb3922a0f07441fff356e0e51f82302c712801aea8a6429dcaee44efe7eaf732dbb751d7eff2a92a71c657f0ceb983ef89b6d

        • memory/2244-267-0x0000000180000000-0x000000018002F000-memory.dmp

          Filesize

          188KB

        • memory/2424-127-0x00007FFAF0F30000-0x00007FFAF0F40000-memory.dmp

          Filesize

          64KB

        • memory/2424-116-0x00007FFAF4220000-0x00007FFAF4230000-memory.dmp

          Filesize

          64KB

        • memory/2424-305-0x00007FFAF4220000-0x00007FFAF4230000-memory.dmp

          Filesize

          64KB

        • memory/2424-304-0x00007FFAF4220000-0x00007FFAF4230000-memory.dmp

          Filesize

          64KB

        • memory/2424-115-0x00007FFAF4220000-0x00007FFAF4230000-memory.dmp

          Filesize

          64KB

        • memory/2424-118-0x00007FFAF4220000-0x00007FFAF4230000-memory.dmp

          Filesize

          64KB

        • memory/2424-117-0x00007FFAF4220000-0x00007FFAF4230000-memory.dmp

          Filesize

          64KB

        • memory/2424-128-0x00007FFAF0F30000-0x00007FFAF0F40000-memory.dmp

          Filesize

          64KB

        • memory/2424-303-0x00007FFAF4220000-0x00007FFAF4230000-memory.dmp

          Filesize

          64KB

        • memory/2424-302-0x00007FFAF4220000-0x00007FFAF4230000-memory.dmp

          Filesize

          64KB