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04-10-2024 16:44

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27-09-2024 16:54

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27-09-2024 16:44

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04-08-2024 18:04

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Analysis

  • max time kernel
    1792s
  • max time network
    1709s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-10-2024 16:44

General

  • Target

    4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe

  • Size

    787KB

  • MD5

    0b862b9c889d4bdc6f0bac7d702d8753

  • SHA1

    fdc030df123e6e6a712cbc960a2e7c63266bf040

  • SHA256

    4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7

  • SHA512

    4f7284a625b4909f9a0d80023c1dbfe3ed2de8a14fdf9a5bd3687d7e2fb21e265ee6cca613e4e6c8cab35f806501b155e6ed70a11530eb1cc78dbc38b22d3e8b

  • SSDEEP

    24576:reKt4RjnJ+wWEr55fRue+cfxiskJM0BPA:rORdGA55fkcJinM0BI

Malware Config

Extracted

Family

djvu

C2

http://astdg.top/nddddhsspen6/get.php

Attributes
  • extension

    .moqs

  • offline_id

    CatwRkqdYh2Jomn6DqwFoGgcSbDsle1xlE1NPtt1

  • payload_url

    http://securebiz.org/dl/build2.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. You can get and look video overview decrypt tool: https://we.tl/t-N3p42CffoV Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. 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: 0318ewgfDd

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 28 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Renames multiple (162) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 12 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 13 IoCs

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

  • Suspicious use of SetThreadContext 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 17 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe
    "C:\Users\Admin\AppData\Local\Temp\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3388
    • C:\Users\Admin\AppData\Local\Temp\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe
      "C:\Users\Admin\AppData\Local\Temp\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2052
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:4824
      • C:\Users\Admin\AppData\Local\Temp\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe
        "C:\Users\Admin\AppData\Local\Temp\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4924
        • C:\Users\Admin\AppData\Local\Temp\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe
          "C:\Users\Admin\AppData\Local\Temp\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:4880
  • C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe
    C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe --Task
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1564
    • C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe
      C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe --Task
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4964
  • C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe
    C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe --Task
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1416
    • C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe
      C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe --Task
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4724
  • C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe
    C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe --Task
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:376
    • C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe
      C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe --Task
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:3096
  • C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe
    C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe --Task
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4328
    • C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe
      C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe --Task
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2480
  • C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe
    C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe --Task
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    PID:64
    • C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe
      C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe --Task
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:5056
  • C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe
    C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe --Task
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    PID:2296
    • C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe
      C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe --Task
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:544

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\SystemID\PersonalID.txt

    Filesize

    42B

    MD5

    fd7c0f2f7c2d8497510edf8f5b14ab23

    SHA1

    e9a2b95d0eaf487ce55193375ad14a794761dd67

    SHA256

    da21778ac6629e8d58e191658ce1dc9445cf770636d4ff5f0752bf2f167c4e69

    SHA512

    ff5faf897593e5029d64513b2ba4ffa8a0e92d1d1b048814b93080669f0b63bb2b42dbd56874a7dc08aceaf6bf70b83b3e65278a3012d7a2f8a53ff88716b43f

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12

    Filesize

    1KB

    MD5

    7fb5fa1534dcf77f2125b2403b30a0ee

    SHA1

    365d96812a69ac0a4611ea4b70a3f306576cc3ea

    SHA256

    33a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f

    SHA512

    a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8

    Filesize

    436B

    MD5

    971c514f84bba0785f80aa1c23edfd79

    SHA1

    732acea710a87530c6b08ecdf32a110d254a54c8

    SHA256

    f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895

    SHA512

    43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12

    Filesize

    174B

    MD5

    d457594181e195756f0710e0cb9d1ac2

    SHA1

    818f9e3a478e5da31b97187b1978b44175e69eae

    SHA256

    012705c5b9ac11c3bd7385fe37f257fd3d7d7cc1c0d2567474cbf5837105ce9d

    SHA512

    feb5faf856dc768b3897e34f2a01aa1204c00a1d336701d6b0aef656372fde05bf1b54ce9f61b8ddcaa2264d3b70328e9d8498824388f55df4f8f7cba3b6de46

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8

    Filesize

    170B

    MD5

    2689faf3c24715b4f4df2876cd4a9e08

    SHA1

    94c2dc5d885d51b0e7716affd014874fb38548db

    SHA256

    f48fda99cf3554ab7a1d833dfb0d58af9ac3f0e4e9030ba12b61fe65fb7f1ac8

    SHA512

    019df74e6bfbd7df1334a4cad895a065bcef7abdbef16d110c417d8d4997bd3ff72bf3ee09c9866b90fdbf584976c3b3d50697cdb6d7926e854781cca0790e41

  • C:\Users\Admin\AppData\Local\3c1eeb6d-eac4-4f50-b0bd-76a8be74d9cc\4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7.exe

    Filesize

    787KB

    MD5

    0b862b9c889d4bdc6f0bac7d702d8753

    SHA1

    fdc030df123e6e6a712cbc960a2e7c63266bf040

    SHA256

    4bf2dace8a23551a3cd374a14b68cef6185aa18f9148dac8bf77f19f734d3ad7

    SHA512

    4f7284a625b4909f9a0d80023c1dbfe3ed2de8a14fdf9a5bd3687d7e2fb21e265ee6cca613e4e6c8cab35f806501b155e6ed70a11530eb1cc78dbc38b22d3e8b

  • memory/2052-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2052-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2052-20-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2052-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2052-4-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3388-1-0x0000000002550000-0x00000000025E4000-memory.dmp

    Filesize

    592KB

  • memory/3388-2-0x0000000002610000-0x000000000272B000-memory.dmp

    Filesize

    1.1MB

  • memory/4724-409-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4724-402-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4724-406-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4724-408-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4724-410-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4724-412-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4724-404-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4724-403-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4880-34-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4880-33-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4880-42-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4880-43-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4880-23-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4880-24-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4880-395-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4880-40-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4880-38-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4880-35-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4880-41-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4880-26-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4924-25-0x0000000000400000-0x000000000092E000-memory.dmp

    Filesize

    5.2MB

  • memory/4924-21-0x0000000000400000-0x000000000092E000-memory.dmp

    Filesize

    5.2MB

  • memory/4964-66-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4964-65-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB