Analysis

  • max time kernel
    112s
  • max time network
    134s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    26-01-2021 17:02

General

  • Target

    tfvxeurehkyz.wut.dll

  • Size

    404KB

  • MD5

    9a062ead5b2d55af0a5a4b39c5b5eadc

  • SHA1

    fc83367be87c700a696b0329dab538b5e47d90bf

  • SHA256

    a9c68d527223db40014d067cf4fdae5be46cca67387e9cfdff118276085f23ef

  • SHA512

    693ab862c7e3c5dad3ca3d44bbc4a5a4c2391ff558e02e86e4c1d7d1fa7c00b4acf1c426ca619dea2b422997caaf1f0ecba37ec0ffca19edaca297005c9ad861

Score
10/10

Malware Config

Extracted

Family

emotet

Botnet

LEA

C2

80.158.3.161:443

80.158.51.209:8080

80.158.35.51:80

80.158.63.78:443

80.158.53.167:80

80.158.62.194:443

80.158.59.174:8080

80.158.43.136:80

rsa_pubkey.plain

Signatures

  • Emotet

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

  • Blocklisted process makes network request ⋅ 1 IoCs
  • Suspicious behavior: EnumeratesProcesses ⋅ 6 IoCs
  • Suspicious use of WriteProcessMemory ⋅ 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\tfvxeurehkyz.wut.dll,#1
    Suspicious use of WriteProcessMemory
    PID:944
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\tfvxeurehkyz.wut.dll,#1
      Blocklisted process makes network request
      Suspicious behavior: EnumeratesProcesses
      PID:1700
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    PID:2240

Network

MITRE ATT&CK Matrix

Collection

    Command and Control

      Credential Access

        Defense Evasion

          Discovery

            Execution

              Exfiltration

                Impact

                  Initial Access

                    Lateral Movement

                      Persistence

                        Privilege Escalation

                          Replay Monitor

                          00:00 00:00

                          Downloads

                          • memory/1700-2-0x0000000000000000-mapping.dmp
                          • memory/1700-4-0x0000000001100000-0x0000000001120000-memory.dmp
                          • memory/1700-3-0x00000000010D0000-0x00000000010ED000-memory.dmp