Analysis

  • max time kernel
    63s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/12/2023, 16:39

General

  • Target

    2dd47fec1e853f0e24f73b39e0421576.exe

  • Size

    132KB

  • MD5

    2dd47fec1e853f0e24f73b39e0421576

  • SHA1

    bf01db1275a90a4429ea10b01b4044e5c650d84a

  • SHA256

    8629d37cddd52e548dd4cbfc906a7e9c32ccfe85dfdda10e9221291713ce9a3a

  • SHA512

    2c2f8349be5d27ea07d0a0c0e0cab05d2f57d90ae84ffc6a73eb7b910b6eb729ae23d1ea0286892bff547a700ad1a131c405cdc281d4d15eaa84d4945ff3e590

  • SSDEEP

    3072:FWl6Xy/qieYId24Wug9d0j+lIemH3/J/iJmE:FWEy/qieYIYQgjY2IemHPJ/iJmE

Score
8/10

Malware Config

Signatures

  • Sets DLL path for service in the registry 2 TTPs 1 IoCs
  • Stops running service(s) 3 TTPs
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 8 IoCs
  • Launches sc.exe 2 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Program crash 1 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2dd47fec1e853f0e24f73b39e0421576.exe
    "C:\Users\Admin\AppData\Local\Temp\2dd47fec1e853f0e24f73b39e0421576.exe"
    1⤵
    • Sets DLL path for service in the registry
    • Loads dropped DLL
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3544
    • \??\c:\windows\SysWOW64\cmd.exe
      c:\windows\system32\cmd.exe /c net stop bits&net stop cryptsvc&sc config cryptsvc start= disabled&sc delete cryptsvc
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4328
      • C:\Windows\SysWOW64\sc.exe
        sc config cryptsvc start= disabled
        3⤵
        • Launches sc.exe
        PID:3724
      • C:\Windows\SysWOW64\sc.exe
        sc delete cryptsvc
        3⤵
        • Launches sc.exe
        PID:724
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3544 -s 436
      2⤵
      • Program crash
      PID:1168
  • C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    1⤵
      PID:2788
    • C:\Windows\SysWOW64\net.exe
      net stop cryptsvc
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1548
    • C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop bits
      1⤵
        PID:3652
      • C:\Windows\SysWOW64\net.exe
        net stop bits
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:2520
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k NetworkService -p -s CryptSvc
        1⤵
        • Drops file in System32 directory
        PID:3204
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3544 -ip 3544
        1⤵
          PID:4240

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\SysWOW64\qmgr.dll

          Filesize

          114KB

          MD5

          d5bbb493889a65a0697452e3dc7868fb

          SHA1

          88b3b34a61071aecdb78ee305b9b92a9dc4ceb45

          SHA256

          c8e065a7d90ed189a25ae2461fb8754357eae570d6b9a343053b71e815dd5259

          SHA512

          c3f038e69acb0c6717b68d3d688acff7dbe940ee8fa12aec43dc76d3d053128710cb7d39617c6ddaaf65f79cebf638df1df6a1487e43950606af64a7fe961854

        • C:\Windows\SysWOW64\qmgr.dll

          Filesize

          92KB

          MD5

          cb95d6a059f3c2b74f7c1bec9068918c

          SHA1

          2a6507c5482f853a78aabe0a8856e50024e05c14

          SHA256

          fb45d836aa5d31c8d2c7a0acb78c1705d5b9f6fa6c96ad079319607c6ca31541

          SHA512

          228f29232f1e270d592532ab6f99f1130f9ef52928250db52ea48b7de3b2d92dccb72bf0d0d9f9f0bf93224467ff8fa1ab60e6478911bc0f7cd1465973348c0d

        • memory/3204-9-0x000001B4303B0000-0x000001B4303C0000-memory.dmp

          Filesize

          64KB

        • memory/3204-1-0x000001B430240000-0x000001B430250000-memory.dmp

          Filesize

          64KB

        • memory/3544-0-0x0000000000400000-0x0000000000420530-memory.dmp

          Filesize

          129KB

        • memory/3544-24-0x0000000010000000-0x0000000010022000-memory.dmp

          Filesize

          136KB

        • memory/3544-26-0x0000000010000000-0x0000000010022000-memory.dmp

          Filesize

          136KB

        • memory/3544-25-0x0000000000400000-0x0000000000420530-memory.dmp

          Filesize

          129KB