Analysis

  • max time kernel
    151s
  • max time network
    97s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    17/09/2021, 09:36

General

  • Target
    169a95a8e428aed820b3cecb3edfdc797467eee633ef4dbd3bb1b9c3e70408c3.dll
  • Size 2.9MB
  • Sample210917-lkz48saagj
  • SHA256 169a95a8e428aed820b3cecb3edfdc797467eee633ef4dbd3bb1b9c3e70408c3
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Dridex

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

  • Dridex Shellcode 1 IoCs

    Detects Dridex Payload shellcode injected in Explorer process.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 7 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\169a95a8e428aed820b3cecb3edfdc797467eee633ef4dbd3bb1b9c3e70408c3.dll,#1
    1⤵
    • Checks whether UAC is enabled
    • Suspicious behavior: EnumeratesProcesses
    PID:2016
  • C:\Windows\system32\irftp.exe
    C:\Windows\system32\irftp.exe
    1⤵
      PID:572
    • C:\Users\Admin\AppData\Local\xKqH\irftp.exe
      C:\Users\Admin\AppData\Local\xKqH\irftp.exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks whether UAC is enabled
      PID:1560
    • C:\Windows\system32\dwm.exe
      C:\Windows\system32\dwm.exe
      1⤵
        PID:1888
      • C:\Users\Admin\AppData\Local\z63UlrZ\dwm.exe
        C:\Users\Admin\AppData\Local\z63UlrZ\dwm.exe
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks whether UAC is enabled
        PID:1764
      • C:\Windows\system32\unregmp2.exe
        C:\Windows\system32\unregmp2.exe
        1⤵
          PID:2032
        • C:\Users\Admin\AppData\Local\x3mL\unregmp2.exe
          C:\Users\Admin\AppData\Local\x3mL\unregmp2.exe
          1⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks whether UAC is enabled
          PID:1596

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              memory/1220-95-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-105-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-75-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-76-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-78-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-77-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-79-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-80-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-81-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-82-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-83-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-84-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-85-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-86-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-88-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-87-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-89-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-90-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-91-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-92-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-93-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-94-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-96-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-74-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-97-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-98-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-99-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-100-0x0000000002D20000-0x0000000002D30000-memory.dmp

              memory/1220-101-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-102-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-103-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-73-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-106-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-104-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-108-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-109-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-107-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-110-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-111-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-112-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-113-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-114-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-115-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-117-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-116-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-72-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-123-0x0000000077000000-0x0000000077002000-memory.dmp

              memory/1220-63-0x00000000025D0000-0x00000000025D1000-memory.dmp

              memory/1220-65-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-64-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-67-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-66-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-71-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-70-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-68-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1220-69-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/1560-129-0x0000000140000000-0x00000001402DC000-memory.dmp

              memory/2016-60-0x0000000140000000-0x00000001402DB000-memory.dmp

              memory/2016-62-0x0000000000110000-0x0000000000117000-memory.dmp