Analysis

  • max time kernel
    141s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/10/2023, 20:52

General

  • Target

    file.exe

  • Size

    236KB

  • MD5

    d88f9cc54c1847d3bb34dc15a2ad14fb

  • SHA1

    71fbc184b731aa6040355979723cc87499f4ff18

  • SHA256

    3e69f19a21cc28d30e419c05f46e759f33d90315ffb4a7a2e123488df96edd75

  • SHA512

    fdeb2ea78e49dc2fe7413004d61eb641577cdf5b3ea3d54a1fd991d4196e387f5786f2395a20fb2ce757f05671d263c01d7516ff88f8635ff69f4bea76b00010

  • SSDEEP

    3072:LsuNZhUNL2D6swCbK6kYHaHWOaVIr2RP86T5mlRx3Gmo:AuNZiNLu6Qk/CZRUNlRx

Malware Config

Extracted

Family

stealc

C2

http://elijahdiego.top

Attributes
  • url_path

    /e9c345fc99a4e67e.php

rc4.plain

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

  • Downloads MZ/PE file
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:4604
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4604 -s 2612
      2⤵
      • Program crash
      PID:3796
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4604 -ip 4604
    1⤵
      PID:4104

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\ProgramData\Are.docx

            Filesize

            11KB

            MD5

            a33e5b189842c5867f46566bdbf7a095

            SHA1

            e1c06359f6a76da90d19e8fd95e79c832edb3196

            SHA256

            5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454

            SHA512

            f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

          • C:\ProgramData\mozglue.dll

            Filesize

            593KB

            MD5

            c8fd9be83bc728cc04beffafc2907fe9

            SHA1

            95ab9f701e0024cedfbd312bcfe4e726744c4f2e

            SHA256

            ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

            SHA512

            fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

          • C:\ProgramData\mozglue.dll

            Filesize

            593KB

            MD5

            c8fd9be83bc728cc04beffafc2907fe9

            SHA1

            95ab9f701e0024cedfbd312bcfe4e726744c4f2e

            SHA256

            ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

            SHA512

            fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

          • C:\ProgramData\nss3.dll

            Filesize

            2.0MB

            MD5

            1cc453cdf74f31e4d913ff9c10acdde2

            SHA1

            6e85eae544d6e965f15fa5c39700fa7202f3aafe

            SHA256

            ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

            SHA512

            dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

          • memory/4604-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp

            Filesize

            972KB

          • memory/4604-1-0x0000000000990000-0x0000000000A90000-memory.dmp

            Filesize

            1024KB

          • memory/4604-3-0x0000000000400000-0x000000000062D000-memory.dmp

            Filesize

            2.2MB

          • memory/4604-71-0x0000000000990000-0x0000000000A90000-memory.dmp

            Filesize

            1024KB

          • memory/4604-2-0x00000000008D0000-0x00000000008EB000-memory.dmp

            Filesize

            108KB

          • memory/4604-83-0x0000000000400000-0x000000000062D000-memory.dmp

            Filesize

            2.2MB

          • memory/4604-84-0x00000000008D0000-0x00000000008EB000-memory.dmp

            Filesize

            108KB

          • memory/4604-90-0x0000000000400000-0x000000000062D000-memory.dmp

            Filesize

            2.2MB

          • memory/4604-91-0x0000000000400000-0x000000000062D000-memory.dmp

            Filesize

            2.2MB