Analysis

  • max time kernel
    147s
  • max time network
    143s
  • platform
    windows10_x64
  • resource
    win10-20220310-en
  • submitted
    29-03-2022 18:26

General

  • Target

    0a6154f3c866b22e26356c0459f4b0eabee2bf9a7dffa104440b5db1ea99e2f7.xls

  • Size

    106KB

  • MD5

    68afd4282fdfa4daa9f6cc695fe736b8

  • SHA1

    0aae01e620461d4f5020a33e85254810fdc0e7c7

  • SHA256

    0a6154f3c866b22e26356c0459f4b0eabee2bf9a7dffa104440b5db1ea99e2f7

  • SHA512

    7bb65962e4e8824f1cc24030795f6f14ca344662915ba5178fd72bf850dbe7ec5b650d8d499bbb3d652e0711a6faee21533e212d7a17bde5e189b2a36eb1ad5b

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://fccatinsaat.com/wp-content/Cw3aR6792f/

xlm40.dropper

http://fabulouswebdesign.net/invoice/m/

Extracted

Family

emotet

Botnet

Epoch4

C2

45.176.232.125:443

138.197.109.175:8080

187.84.80.182:443

79.143.187.147:443

189.232.46.161:443

103.70.28.102:8080

134.122.66.193:8080

151.106.112.196:8080

160.16.142.56:8080

212.24.98.99:8080

188.44.20.25:443

197.242.150.244:8080

206.189.28.199:8080

172.104.251.154:8080

103.43.46.182:443

203.114.109.124:443

103.75.201.2:443

58.227.42.236:80

201.94.166.162:443

189.126.111.200:7080

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.

  • Downloads MZ/PE file
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 1 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 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 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\0a6154f3c866b22e26356c0459f4b0eabee2bf9a7dffa104440b5db1ea99e2f7.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2228
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\nhth.dll
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2832
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Mqxnenjfsrsman\wubliql.ncw"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2564

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\nhth.dll

    Filesize

    444KB

    MD5

    e7dbbcbb79120bc7606b7065b8396b8c

    SHA1

    70530f143077eb39bfe9b5ac304999f17627b470

    SHA256

    0930488303e1f1eab3ab2ffb7040823a75ecad65396b1fa0889ae0f412e95c04

    SHA512

    f4611a0e716e49e11fa1c5711466058120839d0ae9073b72c77176db2b65a96c1fbe119b72d509fbaafb9b28dc8bdeb16bee14e5012970dec1391bda692e45e2

  • \Users\Admin\nhth.dll

    Filesize

    444KB

    MD5

    e7dbbcbb79120bc7606b7065b8396b8c

    SHA1

    70530f143077eb39bfe9b5ac304999f17627b470

    SHA256

    0930488303e1f1eab3ab2ffb7040823a75ecad65396b1fa0889ae0f412e95c04

    SHA512

    f4611a0e716e49e11fa1c5711466058120839d0ae9073b72c77176db2b65a96c1fbe119b72d509fbaafb9b28dc8bdeb16bee14e5012970dec1391bda692e45e2

  • memory/2228-118-0x00007FFFB9990000-0x00007FFFB99A0000-memory.dmp

    Filesize

    64KB

  • memory/2228-119-0x00007FFFB9990000-0x00007FFFB99A0000-memory.dmp

    Filesize

    64KB

  • memory/2228-120-0x00007FFFB9990000-0x00007FFFB99A0000-memory.dmp

    Filesize

    64KB

  • memory/2228-121-0x00007FFFB9990000-0x00007FFFB99A0000-memory.dmp

    Filesize

    64KB

  • memory/2564-271-0x0000000000000000-mapping.dmp

  • memory/2564-272-0x00000000042F0000-0x0000000004314000-memory.dmp

    Filesize

    144KB

  • memory/2832-264-0x0000000000000000-mapping.dmp

  • memory/2832-268-0x0000000003040000-0x0000000003064000-memory.dmp

    Filesize

    144KB