Analysis

  • max time kernel
    138s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 18:30

General

  • Target

    sample.exe

  • Size

    76KB

  • MD5

    1beba96c4a8b45a9ef8ca520772ebf39

  • SHA1

    6b6b00df4ce86eff09174cd57011d60b7ccbc5fb

  • SHA256

    ca727f2a2897c5dd2eef2186692a0b04b5f5e04776b4fe6359e0cbe0e59453ae

  • SHA512

    0a5baadc50d9be7d7a9af237c94a6e0256fccd1a4221d46895a176e1678df2fed50780d8b66c6cbfaca74c6cac8abde47fbcd53d0115662c8ae594387a19f71e

Malware Config

Extracted

Family

emotet

Botnet

Epoch1

C2

82.163.245.38:80

209.126.6.222:8080

5.153.250.14:8080

186.70.127.199:8090

190.128.173.10:80

190.195.129.227:8090

91.219.169.180:80

45.173.88.33:80

185.33.0.233:80

188.2.217.94:80

207.144.103.227:80

45.161.242.102:80

219.92.13.25:80

190.163.31.26:80

68.183.170.114:8080

191.99.160.58:80

73.213.208.163:80

94.176.234.118:443

104.131.41.185:8080

45.33.77.42:8080

rsa_pubkey.plain

Signatures

  • Emotet

    Emotet is a trojan that is primarily spread through spam emails.

  • suricata: ET MALWARE Win32/Emotet CnC Activity (POST) M8

    suricata: ET MALWARE Win32/Emotet CnC Activity (POST) M8

  • suricata: ET MALWARE Win32/Emotet CnC Activity (POST) M9

    suricata: ET MALWARE Win32/Emotet CnC Activity (POST) M9

  • Emotet Payload 3 IoCs

    Detects Emotet payload in memory.

  • Executes dropped EXE 1 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.

  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\sample.exe
    "C:\Users\Admin\AppData\Local\Temp\sample.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1888
    • C:\Windows\SysWOW64\AppContracts\AcWinRT.exe
      "C:\Windows\SysWOW64\AppContracts\AcWinRT.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:3280

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\SysWOW64\AppContracts\AcWinRT.exe
    Filesize

    76KB

    MD5

    1beba96c4a8b45a9ef8ca520772ebf39

    SHA1

    6b6b00df4ce86eff09174cd57011d60b7ccbc5fb

    SHA256

    ca727f2a2897c5dd2eef2186692a0b04b5f5e04776b4fe6359e0cbe0e59453ae

    SHA512

    0a5baadc50d9be7d7a9af237c94a6e0256fccd1a4221d46895a176e1678df2fed50780d8b66c6cbfaca74c6cac8abde47fbcd53d0115662c8ae594387a19f71e

  • memory/1888-130-0x0000000002240000-0x000000000224C000-memory.dmp
    Filesize

    48KB

  • memory/1888-134-0x0000000002230000-0x0000000002239000-memory.dmp
    Filesize

    36KB

  • memory/3280-135-0x0000000000000000-mapping.dmp
  • memory/3280-137-0x0000000000950000-0x000000000095C000-memory.dmp
    Filesize

    48KB