Analysis

  • max time kernel
    4294210s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    29-03-2022 16:57

General

  • Target

    Address Update, NY.xls

  • Size

    106KB

  • MD5

    a87543e552ee059b2c1a68c26529579b

  • SHA1

    76b384a0f3f314d0b6b26d7ce3a060c2e5a1f424

  • SHA256

    ab01a85308cf2fce06a2402287df4d947b0a89250d30d7289c0b63a07eb00503

  • SHA512

    55f1e968b37c1040782c8b6559a215cde9ba5bad89ebe4d0dbb94b56e6267789e585dc63c0ab369703adca6ab0bfe5ce56acb993a3986fa6392ab826f891a80d

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

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

Extracted

Family

emotet

Botnet

Epoch4

C2

159.203.141.156:8080

79.143.187.147:443

189.232.46.161:443

51.91.76.89:8080

119.193.124.41:7080

176.104.106.96:8080

1.234.21.73:7080

82.165.152.127:8080

167.172.253.162:8080

153.126.146.25:7080

216.158.226.206:443

103.75.201.2:443

188.44.20.25:443

101.50.0.91:8080

159.65.88.10:8080

176.56.128.118:443

72.15.201.15:8080

203.114.109.124:443

212.237.17.99:8080

192.99.251.50:443

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.

  • suricata: ET MALWARE W32/Emotet CnC Beacon 3

    suricata: ET MALWARE W32/Emotet CnC Beacon 3

  • Downloads MZ/PE file
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\Address Update, NY.xls"
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1104
    • 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:2024
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Byuma\vbwnapry.gbe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1796

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\nhth.dll

    Filesize

    584KB

    MD5

    7b93bfbdc0e7fd5576c1c49d72a224cc

    SHA1

    cfcc5a88f5b2172255eb5b038e2e25a3818e79c9

    SHA256

    6353f44cf2e64c45d593940e60e3467582ad9a6f0e5dc9c118e61e0e75654a45

    SHA512

    bdb39f309ac75837ad406f989c933623c436bd1d89c1a050befaf43726324d2b32fd2ea41126f3f59a8dc8223469bbdc0ab38839c8b1d690768c95a4afae2562

  • \Users\Admin\nhth.dll

    Filesize

    584KB

    MD5

    7b93bfbdc0e7fd5576c1c49d72a224cc

    SHA1

    cfcc5a88f5b2172255eb5b038e2e25a3818e79c9

    SHA256

    6353f44cf2e64c45d593940e60e3467582ad9a6f0e5dc9c118e61e0e75654a45

    SHA512

    bdb39f309ac75837ad406f989c933623c436bd1d89c1a050befaf43726324d2b32fd2ea41126f3f59a8dc8223469bbdc0ab38839c8b1d690768c95a4afae2562

  • memory/1104-54-0x000000002F0B1000-0x000000002F0B4000-memory.dmp

    Filesize

    12KB

  • memory/1104-55-0x0000000070D51000-0x0000000070D53000-memory.dmp

    Filesize

    8KB

  • memory/1104-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1104-57-0x0000000071D3D000-0x0000000071D48000-memory.dmp

    Filesize

    44KB

  • memory/1796-67-0x0000000000370000-0x0000000000394000-memory.dmp

    Filesize

    144KB

  • memory/2024-59-0x0000000074F31000-0x0000000074F33000-memory.dmp

    Filesize

    8KB

  • memory/2024-62-0x0000000000360000-0x0000000000384000-memory.dmp

    Filesize

    144KB