Analysis

  • max time kernel
    143s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/03/2023, 10:43

General

  • Target

    312648301f326b84087b6f20be37c1442b8d6f9a44d9465e54a22883d3a61532.exe

  • Size

    814KB

  • MD5

    0b8588379ad0cc771f8d05e0fbf72487

  • SHA1

    39975389c5a3020cd51a65af82279466cf679d37

  • SHA256

    312648301f326b84087b6f20be37c1442b8d6f9a44d9465e54a22883d3a61532

  • SHA512

    f059d7430678ce3bf930a7c8505f4133479b6adba01f13f2a856cdcf3cf206487443c4ef67d07ad2da7e73998a103772c130713e5c172d70993bc9378d6d8a35

  • SSDEEP

    12288:acafCBESI/mpNnyHa2642SXQm/+mtjv2ttJqqN5WSz:uCS/mKHQSX3/1T2tqqN5

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test1/get.php

Attributes
  • extension

    .gosw

  • offline_id

    zMrgM3QgNJsLARd9vs9a31qnKMjRqxjLT6s9OQt1

  • payload_url

    http://uaery.top/dl/build2.exe

    http://zexeq.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. You can get and look video overview decrypt tool: https://we.tl/t-rayImYlyWe 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: 0655Usjf

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 15 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 2 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Looks up external IP address via web service 3 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). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\312648301f326b84087b6f20be37c1442b8d6f9a44d9465e54a22883d3a61532.exe
    "C:\Users\Admin\AppData\Local\Temp\312648301f326b84087b6f20be37c1442b8d6f9a44d9465e54a22883d3a61532.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3216
    • C:\Users\Admin\AppData\Local\Temp\312648301f326b84087b6f20be37c1442b8d6f9a44d9465e54a22883d3a61532.exe
      "C:\Users\Admin\AppData\Local\Temp\312648301f326b84087b6f20be37c1442b8d6f9a44d9465e54a22883d3a61532.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4248
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\2a8a6f00-1f62-46f3-afed-90574e548fc6" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4788
      • C:\Users\Admin\AppData\Local\Temp\312648301f326b84087b6f20be37c1442b8d6f9a44d9465e54a22883d3a61532.exe
        "C:\Users\Admin\AppData\Local\Temp\312648301f326b84087b6f20be37c1442b8d6f9a44d9465e54a22883d3a61532.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2072
        • C:\Users\Admin\AppData\Local\Temp\312648301f326b84087b6f20be37c1442b8d6f9a44d9465e54a22883d3a61532.exe
          "C:\Users\Admin\AppData\Local\Temp\312648301f326b84087b6f20be37c1442b8d6f9a44d9465e54a22883d3a61532.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:5060
          • C:\Users\Admin\AppData\Local\c5661b4d-0b3a-4bdd-9bf1-b478873e8ca2\build2.exe
            "C:\Users\Admin\AppData\Local\c5661b4d-0b3a-4bdd-9bf1-b478873e8ca2\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:220
            • C:\Users\Admin\AppData\Local\c5661b4d-0b3a-4bdd-9bf1-b478873e8ca2\build2.exe
              "C:\Users\Admin\AppData\Local\c5661b4d-0b3a-4bdd-9bf1-b478873e8ca2\build2.exe"
              6⤵
              • Checks computer location settings
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:1816
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\c5661b4d-0b3a-4bdd-9bf1-b478873e8ca2\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:396
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:3776
          • C:\Users\Admin\AppData\Local\c5661b4d-0b3a-4bdd-9bf1-b478873e8ca2\build3.exe
            "C:\Users\Admin\AppData\Local\c5661b4d-0b3a-4bdd-9bf1-b478873e8ca2\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4032
            • C:\Windows\SysWOW64\schtasks.exe
              /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
              6⤵
              • Creates scheduled task(s)
              PID:4676
  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:1448
    • C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
      2⤵
      • Creates scheduled task(s)
      PID:3784

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • 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

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

    Filesize

    2KB

    MD5

    5ebbd3148318b887eccd6d81bd608ec7

    SHA1

    ac423bb92c9d74450c668b8c69926774f2ae147b

    SHA256

    ed62e08399e483e87941ea69f03fec9ea48186b14c9d1fd54f238a97935dade5

    SHA512

    5c6e1c4df548d66ca68f0d169361c7d53ed104e916db2d2c6fd41de929b8bdc9cdb5f635657cda94e710c4c7ef44d457b5e3c13c6c20a758d1537bbdb1fadef8

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

    Filesize

    1KB

    MD5

    bf56fe61b0bda7a5625f77c70820d98a

    SHA1

    bc52c58737644c029bc68177da93f885e2efb505

    SHA256

    5e2a6b3fee5aee875bbb5e5bc8236de647c6a77ff4d024881c878dcaa5c4cf1e

    SHA512

    74e6db364d6f0718d1f8874532e58f6271c5988825223752226508e20b656e67a64b10a76167eb7749d156a58322212c4db8e83895779b5815f41256a8274649

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

    Filesize

    488B

    MD5

    c9cd4dba3961dd2d01c3225c65acde58

    SHA1

    ebb55cb3d107117c909e98b2a766e7ab3f9ade31

    SHA256

    37be8b6fc72daca884246ea1d8a553d452c1cae3cbb60c9c59ba88f82aad3af5

    SHA512

    02cc9b5a5528d5f95f059bec9f15bd2474e6b5d0d2e87969101bb3a77174670732a007e1aada2c023c4ddd023cbb6c63191efedc63adec7caea460a2013b437b

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

    Filesize

    482B

    MD5

    a2de04df3aa1079635466585b96f81ab

    SHA1

    5b67df7a1ccb3f165a01722c8b89aa2e21a246fd

    SHA256

    a24a644ce2e74bd23d5368477b372db3498f4d625bec32105ab1de26947b923b

    SHA512

    f3a2087a81496a79f4995fe70323239fcd6f0c9686e2df13735c1ca9fc0e9b59da0088ecd6f7bbadccff24475be82dd63bd52257d3174af58a4f7ef185590842

  • C:\Users\Admin\AppData\Local\2a8a6f00-1f62-46f3-afed-90574e548fc6\312648301f326b84087b6f20be37c1442b8d6f9a44d9465e54a22883d3a61532.exe

    Filesize

    814KB

    MD5

    0b8588379ad0cc771f8d05e0fbf72487

    SHA1

    39975389c5a3020cd51a65af82279466cf679d37

    SHA256

    312648301f326b84087b6f20be37c1442b8d6f9a44d9465e54a22883d3a61532

    SHA512

    f059d7430678ce3bf930a7c8505f4133479b6adba01f13f2a856cdcf3cf206487443c4ef67d07ad2da7e73998a103772c130713e5c172d70993bc9378d6d8a35

  • C:\Users\Admin\AppData\Local\c5661b4d-0b3a-4bdd-9bf1-b478873e8ca2\build2.exe

    Filesize

    394KB

    MD5

    04ca884d1642ba6051f501ca5c66375a

    SHA1

    ca1f3a4503b3f9c9e765fd9a23e3513a13030a94

    SHA256

    8b08628b3b7ad95bef5be23120ed741dcfca5d30f0d2dfdf83166b94c56f15d1

    SHA512

    cb046de26c7fe1f4dcb34c1683415fd83fe18777dc8b88d534a6a09f262e2ea1d2ae7187e0d91d4f9a4f8d7a94e7a7740335de274f85e36d978bc7947f4e97c3

  • C:\Users\Admin\AppData\Local\c5661b4d-0b3a-4bdd-9bf1-b478873e8ca2\build2.exe

    Filesize

    394KB

    MD5

    04ca884d1642ba6051f501ca5c66375a

    SHA1

    ca1f3a4503b3f9c9e765fd9a23e3513a13030a94

    SHA256

    8b08628b3b7ad95bef5be23120ed741dcfca5d30f0d2dfdf83166b94c56f15d1

    SHA512

    cb046de26c7fe1f4dcb34c1683415fd83fe18777dc8b88d534a6a09f262e2ea1d2ae7187e0d91d4f9a4f8d7a94e7a7740335de274f85e36d978bc7947f4e97c3

  • C:\Users\Admin\AppData\Local\c5661b4d-0b3a-4bdd-9bf1-b478873e8ca2\build2.exe

    Filesize

    394KB

    MD5

    04ca884d1642ba6051f501ca5c66375a

    SHA1

    ca1f3a4503b3f9c9e765fd9a23e3513a13030a94

    SHA256

    8b08628b3b7ad95bef5be23120ed741dcfca5d30f0d2dfdf83166b94c56f15d1

    SHA512

    cb046de26c7fe1f4dcb34c1683415fd83fe18777dc8b88d534a6a09f262e2ea1d2ae7187e0d91d4f9a4f8d7a94e7a7740335de274f85e36d978bc7947f4e97c3

  • C:\Users\Admin\AppData\Local\c5661b4d-0b3a-4bdd-9bf1-b478873e8ca2\build2.exe

    Filesize

    394KB

    MD5

    04ca884d1642ba6051f501ca5c66375a

    SHA1

    ca1f3a4503b3f9c9e765fd9a23e3513a13030a94

    SHA256

    8b08628b3b7ad95bef5be23120ed741dcfca5d30f0d2dfdf83166b94c56f15d1

    SHA512

    cb046de26c7fe1f4dcb34c1683415fd83fe18777dc8b88d534a6a09f262e2ea1d2ae7187e0d91d4f9a4f8d7a94e7a7740335de274f85e36d978bc7947f4e97c3

  • C:\Users\Admin\AppData\Local\c5661b4d-0b3a-4bdd-9bf1-b478873e8ca2\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\c5661b4d-0b3a-4bdd-9bf1-b478873e8ca2\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\c5661b4d-0b3a-4bdd-9bf1-b478873e8ca2\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • memory/220-181-0x0000000002D70000-0x0000000002DCD000-memory.dmp

    Filesize

    372KB

  • memory/1816-180-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1816-277-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1816-275-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1816-276-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1816-178-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1816-183-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1816-182-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1816-206-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/3216-193-0x0000000004900000-0x0000000004A1B000-memory.dmp

    Filesize

    1.1MB

  • memory/3216-136-0x0000000004900000-0x0000000004A1B000-memory.dmp

    Filesize

    1.1MB

  • memory/4248-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4248-148-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4248-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4248-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4248-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5060-165-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5060-157-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5060-159-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5060-202-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5060-163-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5060-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5060-166-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5060-151-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5060-281-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB