Analysis

  • max time kernel
    83s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-09-2022 06:30

General

  • Target

    849d3eb659fc41ba57098e5e48d694f5c4389cdb7157642b47fc1b0c6d75c00b.dll

  • Size

    244KB

  • MD5

    527acdff5f6083b091e9361ecc9bed36

  • SHA1

    2028f4ccb2e8b95f296a3ea61d6be597303efba3

  • SHA256

    849d3eb659fc41ba57098e5e48d694f5c4389cdb7157642b47fc1b0c6d75c00b

  • SHA512

    c691c182fd6fc03ae75d602bf4c6466128e16803cbfd8d55db9f3e41c35b602fd5214db03d0fd8a8e8d7bc58cf82f97f246ff8411c763b7a8cf586b34c9d0049

  • SSDEEP

    3072:dmMHLYjs2g+ciAlYDyOWIsh0pMf+66C4FxTdCU1byGkGcyXDTERlDkr/:drHL+tg+cGyZzheB6b4fJCwb8d0E

Malware Config

Extracted

Family

dridex

Botnet

22201

C2

195.154.146.84:443

45.56.121.87:8116

157.245.222.44:5723

rc4.plain
rc4.plain

Signatures

  • Dridex

    Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.

  • Dridex Loader ⋅ 2 IoCs

    Detects Dridex both x86 and x64 loader in memory.

  • Program crash ⋅ 1 IoCs
  • Suspicious use of WriteProcessMemory ⋅ 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\849d3eb659fc41ba57098e5e48d694f5c4389cdb7157642b47fc1b0c6d75c00b.dll,#1
    Suspicious use of WriteProcessMemory
    PID:4820
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\849d3eb659fc41ba57098e5e48d694f5c4389cdb7157642b47fc1b0c6d75c00b.dll,#1
      PID:5104
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5104 -s 620
        Program crash
        PID:4232
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5104 -ip 5104
    PID:624

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/5104-132-0x0000000000000000-mapping.dmp
                          • memory/5104-133-0x0000000075220000-0x000000007525E000-memory.dmp
                          • memory/5104-137-0x0000000001490000-0x0000000001496000-memory.dmp
                          • memory/5104-138-0x0000000075220000-0x000000007524F000-memory.dmp
                          • memory/5104-139-0x0000000075220000-0x000000007525E000-memory.dmp
                          • memory/5104-140-0x0000000002EB0000-0x0000000002EB6000-memory.dmp