Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/03/2024, 22:38

General

  • Target
    file.exe
  • Size 222KB
  • Sample240315-2kcxpsef29
  • SHA256 50c5fa2b2078b52d54657e174f05dcc98bd3e409eeef19baf60b65f041bfe5d2
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • smokeloader

Botnet
  • pub1

Extracted

Family
  • smokeloader

Version
  • 2022

C2
  • http://trad-einmyus.com/index.php

  • http://tradein-myus.com/index.php

  • http://trade-inmyus.com/index.php

rc4.i32
rc4.i32

Extracted

Family
  • djvu

C2
  • http://sajdfue.com/test1/get.php

Attributes
  • extension

    .wisz

  • offline_id

    4p0Nzrg1q0ND5of5Gtp2UBjthSXuE8VxnMrd4vt1

  • payload_url

    http://sdfjhuz.com/dl/build2.exe

    http://sajdfue.com/files/1/build3.exe

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/a832401adcd58098c699f768ffea4f1720240305114308/7e601a Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0853PsawqS

rsa_pubkey.plain

Extracted

Family
  • lumma

C2
  • https://colorfulequalugliess.shop/api

  • https://resergvearyinitiani.shop/api

  • https://associationokeo.shop/api

Signatures

  • Detected Djvu ransomware 9 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Lumma Stealer

    An infostealer written in C++ first seen in August 2022.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 8 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 4 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 22 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 57 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:4756
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\CB7E.bat" "
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2184
    • C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
      2⤵
        PID:968
    • C:\Users\Admin\AppData\Local\Temp\3FD4.exe
      C:\Users\Admin\AppData\Local\Temp\3FD4.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:520
      • C:\Users\Admin\AppData\Local\Temp\3FD4.exe
        C:\Users\Admin\AppData\Local\Temp\3FD4.exe
        2⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:4760
        • C:\Windows\SysWOW64\icacls.exe
          icacls "C:\Users\Admin\AppData\Local\7cee065a-6582-4625-8c52-20ad3579d608" /deny *S-1-1-0:(OI)(CI)(DE,DC)
          3⤵
          • Modifies file permissions
          PID:3580
        • C:\Users\Admin\AppData\Local\Temp\3FD4.exe
          "C:\Users\Admin\AppData\Local\Temp\3FD4.exe" --Admin IsNotAutoStart IsNotTask
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:5072
          • C:\Users\Admin\AppData\Local\Temp\3FD4.exe
            "C:\Users\Admin\AppData\Local\Temp\3FD4.exe" --Admin IsNotAutoStart IsNotTask
            4⤵
            • Executes dropped EXE
            PID:1068
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1068 -s 568
              5⤵
              • Program crash
              PID:1004
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1068 -ip 1068
      1⤵
        PID:4408
      • C:\Users\Admin\AppData\Local\Temp\6A31.exe
        C:\Users\Admin\AppData\Local\Temp\6A31.exe
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2704
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          2⤵
            PID:4124
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            2⤵
              PID:2872
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2872 -s 848
                3⤵
                • Program crash
                PID:4672
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2872 -s 1228
                3⤵
                • Program crash
                PID:1208
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 2872 -ip 2872
            1⤵
              PID:1232
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2872 -ip 2872
              1⤵
                PID:5080
              • C:\Users\Admin\AppData\Roaming\uueeheu
                C:\Users\Admin\AppData\Roaming\uueeheu
                1⤵
                • Executes dropped EXE
                • Checks SCSI registry key(s)
                • Suspicious behavior: MapViewOfSection
                PID:3592
              • C:\Users\Admin\AppData\Local\Temp\3BAB.exe
                C:\Users\Admin\AppData\Local\Temp\3BAB.exe
                1⤵
                • Executes dropped EXE
                PID:4156
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 4156 -s 1192
                  2⤵
                  • Program crash
                  PID:2372
              • C:\Windows\system32\cmd.exe
                C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\49A6.bat" "
                1⤵
                • Suspicious use of WriteProcessMemory
                PID:1704
                • C:\Windows\system32\reg.exe
                  reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
                  2⤵
                    PID:848
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4156 -ip 4156
                  1⤵
                    PID:1356
                  • C:\Users\Admin\AppData\Local\Temp\71E0.exe
                    C:\Users\Admin\AppData\Local\Temp\71E0.exe
                    1⤵
                    • Executes dropped EXE
                    PID:5052

                  Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

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                        Downloads

                        3BAB.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\3BAB.exe
                        • Size 6.5MB
                        • SHA256 4a40f9d491f09521f4b0c6076a0eb488f6d8e1cf4b67aa6569c2ccce13556443
                        • MD5 SHA1 SHA512 SSDEEP

                        3FD4.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\3FD4.exe
                        • Size 750KB
                        • SHA256 d0b7d65ab265def9f3bccc7c84f7517b8083378bc810fd3f4e8c9743daa87fce
                        • MD5 SHA1 SHA512 SSDEEP

                        6A31.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\6A31.exe
                        • Size 340KB
                        • SHA256 6ce17d2c1c4694f9e33980a51e6384ac4426fe7eb74dbe0e42f3977e588a190f
                        • MD5 SHA1 SHA512 SSDEEP

                        71E0.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\71E0.exe
                        • Size 11.8MB
                        • SHA256 d2eacbc922f248856b860aa7c31476ae4123f97e82cf69760ef216d9dca321f0
                        • MD5 SHA1 SHA512 SSDEEP

                        CB7E.bat

                        • Path C:\Users\Admin\AppData\Local\Temp\CB7E.bat
                        • Size 77B
                        • SHA256 d6cceb3c71b80403364bf142f2fa4624ee0be36a49bac25ed45a497cf1ce9c3a
                        • MD5 SHA1 SHA512

                        uueeheu

                        • Path C:\Users\Admin\AppData\Roaming\uueeheu
                        • Size 222KB
                        • SHA256 50c5fa2b2078b52d54657e174f05dcc98bd3e409eeef19baf60b65f041bfe5d2
                        • MD5 SHA1 SHA512 SSDEEP

                        memory/520-21-0x00000000021B0000-0x00000000022CB000-memory.dmp

                        memory/520-20-0x0000000002100000-0x0000000002199000-memory.dmp

                        memory/1068-45-0x0000000000400000-0x0000000000537000-memory.dmp

                        memory/1068-47-0x0000000000400000-0x0000000000537000-memory.dmp

                        memory/1068-44-0x0000000000400000-0x0000000000537000-memory.dmp

                        memory/2704-56-0x00000000749C0000-0x0000000075170000-memory.dmp

                        memory/2704-55-0x00000000003F0000-0x0000000000446000-memory.dmp

                        memory/2704-65-0x00000000029A0000-0x00000000049A0000-memory.dmp

                        memory/2704-64-0x00000000749C0000-0x0000000075170000-memory.dmp

                        memory/2704-72-0x00000000029A0000-0x00000000049A0000-memory.dmp

                        memory/2872-71-0x0000000000400000-0x000000000044B000-memory.dmp

                        memory/2872-70-0x0000000000400000-0x000000000044B000-memory.dmp

                        memory/2872-59-0x0000000000400000-0x000000000044B000-memory.dmp

                        memory/2872-63-0x0000000000400000-0x000000000044B000-memory.dmp

                        memory/2872-66-0x00000000010C0000-0x00000000010F2000-memory.dmp

                        memory/2872-67-0x00000000010C0000-0x00000000010F2000-memory.dmp

                        memory/2872-68-0x00000000010C0000-0x00000000010F2000-memory.dmp

                        memory/2872-69-0x00000000010C0000-0x00000000010F2000-memory.dmp

                        memory/3428-98-0x00000000015A0000-0x00000000015B6000-memory.dmp

                        memory/3428-4-0x00000000033E0000-0x00000000033F6000-memory.dmp

                        memory/3592-76-0x00000000004A0000-0x00000000005A0000-memory.dmp

                        memory/3592-77-0x0000000000400000-0x0000000000477000-memory.dmp

                        memory/3592-101-0x0000000000400000-0x0000000000477000-memory.dmp

                        memory/4156-90-0x0000000000730000-0x0000000001415000-memory.dmp

                        memory/4156-95-0x00000000034B0000-0x00000000034B1000-memory.dmp

                        memory/4156-106-0x0000000000730000-0x0000000001415000-memory.dmp

                        memory/4156-97-0x00000000034B0000-0x00000000034B1000-memory.dmp

                        memory/4156-96-0x00000000034B0000-0x00000000034B1000-memory.dmp

                        memory/4156-94-0x0000000000730000-0x0000000001415000-memory.dmp

                        memory/4156-93-0x00000000034A0000-0x00000000034A1000-memory.dmp

                        memory/4156-82-0x0000000000730000-0x0000000001415000-memory.dmp

                        memory/4156-88-0x00000000018C0000-0x00000000018C1000-memory.dmp

                        memory/4156-87-0x00000000018B0000-0x00000000018B1000-memory.dmp

                        memory/4156-92-0x0000000003490000-0x0000000003491000-memory.dmp

                        memory/4156-89-0x00000000018D0000-0x00000000018D1000-memory.dmp

                        memory/4156-91-0x0000000003480000-0x0000000003481000-memory.dmp

                        memory/4756-1-0x0000000000490000-0x0000000000590000-memory.dmp

                        memory/4756-5-0x0000000000400000-0x0000000000477000-memory.dmp

                        memory/4756-3-0x0000000000400000-0x0000000000477000-memory.dmp

                        memory/4756-2-0x0000000002080000-0x000000000208B000-memory.dmp

                        memory/4760-22-0x0000000000400000-0x0000000000537000-memory.dmp

                        memory/4760-24-0x0000000000400000-0x0000000000537000-memory.dmp

                        memory/4760-25-0x0000000000400000-0x0000000000537000-memory.dmp

                        memory/4760-26-0x0000000000400000-0x0000000000537000-memory.dmp

                        memory/4760-38-0x0000000000400000-0x0000000000537000-memory.dmp

                        memory/5052-112-0x00007FF663B00000-0x00007FF664762000-memory.dmp

                        memory/5072-41-0x00000000021B0000-0x0000000002244000-memory.dmp