Analysis

  • max time kernel
    145s
  • max time network
    152s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    03-11-2022 22:12

General

  • Target

    1c3123ea10964522315a2e3d0da38c4d5d64ef4445b58b95477140b09c17c3a9.xls

  • Size

    217KB

  • MD5

    7e9fd6f8829cbbc1178693067b9c919b

  • SHA1

    415050e00147c06c0e55f4149f387b981273a6ec

  • SHA256

    1c3123ea10964522315a2e3d0da38c4d5d64ef4445b58b95477140b09c17c3a9

  • SHA512

    c981a55544ddeb69d187eadc0fd2e626de17c78baddb4643018b77e538b7aac4079044aad756b65d1b2c8331225d80c28ca3f3ba07dc15eabffb1ff714f1c623

  • SSDEEP

    6144:zKpb8rGYrMPe3q7Q0XV5xtuEsi8/dglyY+TAQXTHGUMEyP5p6f5jQm7JnT:1bGUMVWlb5

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://app.clubdedocentes.com/storage/DCcq9ekgH99sI/

xlm40.dropper

http://linhkiendoc.com/app/payments/qoy5JqpLqrbsKl/

xlm40.dropper

http://sourcecool.com/throng/iOD/

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 2 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 9 IoCs
  • Suspicious use of WriteProcessMemory 6 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\1c3123ea10964522315a2e3d0da38c4d5d64ef4445b58b95477140b09c17c3a9.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4324
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:912
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\RjhytvCNzSDsboR\YUFYeiJmwvH.dll"
        3⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:1844
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1784

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\oxnv1.ooccxx

    Filesize

    745KB

    MD5

    fe24d6be1c3646f5e9ff906043cbf39d

    SHA1

    b241c3a1a33fe180662f3d29252576312d5070d7

    SHA256

    2c7a14ca8f06d7cc9081c5a0e1d89a4ad7fb92b1e6b08c5dfda876fbf1e3fbe2

    SHA512

    ddb247006a1de312fe36687ec22345de056de0db4f09a53a43a5a843c840ac1b9006b63d9901404980621c4623aad8092ae4ac19bde7baf54be2a2aa7f05ec34

  • \Users\Admin\oxnv1.ooccxx

    Filesize

    745KB

    MD5

    fe24d6be1c3646f5e9ff906043cbf39d

    SHA1

    b241c3a1a33fe180662f3d29252576312d5070d7

    SHA256

    2c7a14ca8f06d7cc9081c5a0e1d89a4ad7fb92b1e6b08c5dfda876fbf1e3fbe2

    SHA512

    ddb247006a1de312fe36687ec22345de056de0db4f09a53a43a5a843c840ac1b9006b63d9901404980621c4623aad8092ae4ac19bde7baf54be2a2aa7f05ec34

  • memory/912-286-0x0000000180000000-0x000000018002F000-memory.dmp

    Filesize

    188KB

  • memory/4324-118-0x00007FF83D3A0000-0x00007FF83D3B0000-memory.dmp

    Filesize

    64KB

  • memory/4324-119-0x00007FF83D3A0000-0x00007FF83D3B0000-memory.dmp

    Filesize

    64KB

  • memory/4324-120-0x00007FF83D3A0000-0x00007FF83D3B0000-memory.dmp

    Filesize

    64KB

  • memory/4324-121-0x00007FF83D3A0000-0x00007FF83D3B0000-memory.dmp

    Filesize

    64KB

  • memory/4324-130-0x00007FF839DB0000-0x00007FF839DC0000-memory.dmp

    Filesize

    64KB

  • memory/4324-131-0x00007FF839DB0000-0x00007FF839DC0000-memory.dmp

    Filesize

    64KB