Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/02/2024, 11:41

General

  • Target
    18e41c088abac684c090592bc7df4305.exe
  • Size 169KB
  • Sample240208-ntewrsed78
  • SHA256 2aa5a9c9059070191dcf750e2db3860dfd4803b5d50c8d71edc17fe3c3ef2994
  • 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://habrafa.com/test1/get.php

Attributes
  • extension

    .ldhy

  • offline_id

    pIGzEr0bxHiTz7xnvNidWeqzKkxMfVdHTyCkzwt1

  • payload_url

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

    http://habrafa.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://we.tl/t-hPAqznkJKD 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: 0849ASdw

rsa_pubkey.plain

Signatures

  • Detect ZGRat V1 19 IoCs
  • Detected Djvu ransomware 9 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Downloads MZ/PE file
  • .NET Reactor proctector 19 IoCs

    Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

  • 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 7 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 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 3 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 21 IoCs
  • Suspicious use of WriteProcessMemory 38 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\18e41c088abac684c090592bc7df4305.exe
    "C:\Users\Admin\AppData\Local\Temp\18e41c088abac684c090592bc7df4305.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:5108
  • C:\Users\Admin\AppData\Local\Temp\5E7.exe
    C:\Users\Admin\AppData\Local\Temp\5E7.exe
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:2240
  • C:\Users\Admin\AppData\Local\Temp\502F.exe
    C:\Users\Admin\AppData\Local\Temp\502F.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1728
    • C:\Users\Admin\AppData\Local\Temp\502F.exe
      C:\Users\Admin\AppData\Local\Temp\502F.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1276
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\ed96b271-2561-4d19-96a2-4a674a281987" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2252
      • C:\Users\Admin\AppData\Local\Temp\502F.exe
        "C:\Users\Admin\AppData\Local\Temp\502F.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2028
        • C:\Users\Admin\AppData\Local\Temp\502F.exe
          "C:\Users\Admin\AppData\Local\Temp\502F.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Executes dropped EXE
          PID:1232
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1232 -s 568
            5⤵
            • Program crash
            PID:3988
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1232 -ip 1232
    1⤵
      PID:3288
    • C:\Users\Admin\AppData\Local\Temp\4A9E.exe
      C:\Users\Admin\AppData\Local\Temp\4A9E.exe
      1⤵
      • Executes dropped EXE
      PID:5100
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5100 -s 1132
        2⤵
        • Program crash
        PID:940
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5100 -s 1092
        2⤵
        • Program crash
        PID:2044
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 5100 -ip 5100
      1⤵
        PID:1772
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 5100 -ip 5100
        1⤵
          PID:2344
        • C:\Users\Admin\AppData\Local\Temp\BF13.exe
          C:\Users\Admin\AppData\Local\Temp\BF13.exe
          1⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:3472

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              4A9E.exe

              • Path C:\Users\Admin\AppData\Local\Temp\4A9E.exe
              • Size 2.5MB
              • SHA256 b6f181d61ee6a464323d6da455c0a6e10fb2634b53d9a0736a1da75251487244
              • MD5 SHA1 SHA512 SSDEEP

              4A9E.exe

              • Path C:\Users\Admin\AppData\Local\Temp\4A9E.exe
              • Size 2.1MB
              • SHA256 631d85e528ae244b4a425498c84949a8f690dc1fb50da0d59813797a02d9357c
              • MD5 SHA1 SHA512 SSDEEP

              502F.exe

              • Path C:\Users\Admin\AppData\Local\Temp\502F.exe
              • Size 697KB
              • SHA256 1fed9ccb381aad0bf3db86a4ad537830f631136a5bd585bb11be8259165de7d5
              • MD5 SHA1 SHA512 SSDEEP

              502F.exe

              • Path C:\Users\Admin\AppData\Local\Temp\502F.exe
              • Size 448KB
              • SHA256 777a768e0490ea3a00adb6abeba8942dc32fe08ea0bd30506345d4f9346a8746
              • MD5 SHA1 SHA512 SSDEEP

              5E7.exe

              • Path C:\Users\Admin\AppData\Local\Temp\5E7.exe
              • Size 170KB
              • SHA256 48bd1b850f93da8bf0094af089e96d4f4b819d173b2a83174b07acf0d835bfeb
              • MD5 SHA1 SHA512 SSDEEP

              BF13.exe

              • Path C:\Users\Admin\AppData\Local\Temp\BF13.exe
              • Size 649KB
              • SHA256 9217999518147c602f16ed7d80c9b95dec621f442192ce49192736a27e73847f
              • MD5 SHA1 SHA512 SSDEEP

              502F.exe

              • Path C:\Users\Admin\AppData\Local\ed96b271-2561-4d19-96a2-4a674a281987\502F.exe
              • Size 197KB
              • SHA256 4010588cd8771cf8e278c0a0bb7418837a56997c5194ef9d8f4f747aaa9daccc
              • MD5 SHA1 SHA512 SSDEEP

              memory/1232-54-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/1232-52-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/1232-51-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/1276-30-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/1276-32-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/1276-33-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/1276-34-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/1276-45-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/1728-28-0x0000000004880000-0x0000000004919000-memory.dmp

              memory/1728-29-0x0000000004A20000-0x0000000004B3B000-memory.dmp

              memory/2028-48-0x0000000004880000-0x000000000491E000-memory.dmp

              memory/2240-20-0x0000000000400000-0x0000000002BD6000-memory.dmp

              memory/2240-18-0x0000000000400000-0x0000000002BD6000-memory.dmp

              memory/2240-17-0x0000000002EA0000-0x0000000002FA0000-memory.dmp

              memory/3472-93-0x0000000004E80000-0x0000000004E90000-memory.dmp

              memory/3472-105-0x0000000005480000-0x0000000005529000-memory.dmp

              memory/3472-127-0x0000000005480000-0x0000000005529000-memory.dmp

              memory/3472-125-0x0000000005480000-0x0000000005529000-memory.dmp

              memory/3472-123-0x0000000005480000-0x0000000005529000-memory.dmp

              memory/3472-115-0x0000000005480000-0x0000000005529000-memory.dmp

              memory/3472-121-0x0000000005480000-0x0000000005529000-memory.dmp

              memory/3472-119-0x0000000005480000-0x0000000005529000-memory.dmp

              memory/3472-117-0x0000000005480000-0x0000000005529000-memory.dmp

              memory/3472-113-0x0000000005480000-0x0000000005529000-memory.dmp

              memory/3472-111-0x0000000005480000-0x0000000005529000-memory.dmp

              memory/3472-109-0x0000000005480000-0x0000000005529000-memory.dmp

              memory/3472-107-0x0000000005480000-0x0000000005529000-memory.dmp

              memory/3472-103-0x0000000005480000-0x0000000005529000-memory.dmp

              memory/3472-101-0x0000000005480000-0x0000000005529000-memory.dmp

              memory/3472-99-0x0000000005480000-0x0000000005529000-memory.dmp

              memory/3472-97-0x0000000005480000-0x0000000005529000-memory.dmp

              memory/3472-96-0x0000000005480000-0x0000000005529000-memory.dmp

              memory/3472-95-0x0000000005480000-0x000000000552E000-memory.dmp

              memory/3472-94-0x0000000004ED0000-0x0000000005474000-memory.dmp

              memory/3472-92-0x0000000004DA0000-0x0000000004E50000-memory.dmp

              memory/3472-91-0x0000000004E80000-0x0000000004E90000-memory.dmp

              memory/3472-90-0x0000000074D80000-0x0000000075530000-memory.dmp

              memory/3472-87-0x0000000000570000-0x0000000000670000-memory.dmp

              memory/3472-88-0x0000000002120000-0x00000000021E5000-memory.dmp

              memory/3472-89-0x0000000000400000-0x00000000004C8000-memory.dmp

              memory/3540-19-0x0000000002750000-0x0000000002766000-memory.dmp

              memory/3540-4-0x0000000002540000-0x0000000002556000-memory.dmp

              memory/5100-66-0x0000000000A80000-0x00000000015DB000-memory.dmp

              memory/5100-67-0x0000000001690000-0x0000000001691000-memory.dmp

              memory/5100-77-0x0000000003150000-0x0000000003182000-memory.dmp

              memory/5100-79-0x0000000003150000-0x0000000003182000-memory.dmp

              memory/5100-78-0x0000000003150000-0x0000000003182000-memory.dmp

              memory/5100-75-0x0000000003150000-0x0000000003182000-memory.dmp

              memory/5100-74-0x0000000003150000-0x0000000003182000-memory.dmp

              memory/5100-73-0x0000000000A80000-0x00000000015DB000-memory.dmp

              memory/5100-81-0x0000000000A80000-0x00000000015DB000-memory.dmp

              memory/5100-76-0x0000000003150000-0x0000000003182000-memory.dmp

              memory/5100-68-0x00000000016A0000-0x00000000016A1000-memory.dmp

              memory/5100-61-0x0000000001630000-0x0000000001631000-memory.dmp

              memory/5100-65-0x0000000001680000-0x0000000001681000-memory.dmp

              memory/5100-64-0x0000000001670000-0x0000000001671000-memory.dmp

              memory/5100-62-0x0000000001640000-0x0000000001641000-memory.dmp

              memory/5100-63-0x0000000000A80000-0x00000000015DB000-memory.dmp

              memory/5108-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

              memory/5108-3-0x0000000000400000-0x0000000000434000-memory.dmp

              memory/5108-2-0x00000000005A0000-0x00000000005AB000-memory.dmp

              memory/5108-6-0x0000000000400000-0x0000000000434000-memory.dmp

              memory/5108-8-0x00000000005A0000-0x00000000005AB000-memory.dmp