Resubmissions

30-01-2023 13:52

230130-q6j3csaf45 10

30-01-2023 13:41

230130-qzkejsaf27 10

Analysis

  • max time kernel
    102s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-01-2023 13:41

General

  • Target

    d4a66c8b4f2672ff9119191d1b92eb872d2d5f093483682676484246c7720a27.exe

  • Size

    670KB

  • MD5

    d4119bd2e05d30c83481f9f2f8fa45d8

  • SHA1

    ca9417ec27fd4b4fd94697642c3a0f5ab0e81934

  • SHA256

    d4a66c8b4f2672ff9119191d1b92eb872d2d5f093483682676484246c7720a27

  • SHA512

    22fad9880248c2a55a906bca74b6b264795a3be4bc4b9a0f7df053e43c83963ddf91e2cf3da3f97c54acb3bafa388ade890e8a4d227e6d87e7b6971195a3a8ab

  • SSDEEP

    12288:FmNW9Bh+YibooLU/lvuyhQtMicow49EARpPw+8+mn0JyS+4rrPU00I2lz:sWfh9ibGuyhLib395RpPJmn0JN+Mr0Im

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .mzqw

  • offline_id

    ex4uvTKsM2vEkIcr3MjXi2C6v27h1mS682iUXGt1

  • payload_url

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

    http://drampik.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-uZxWxoKbU5 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: 0635JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

2.2

Botnet

19

C2

https://t.me/litlebey

https://steamcommunity.com/profiles/76561199472399815

Attributes
  • profile_id

    19

Signatures

  • Detected Djvu ransomware 10 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
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • 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\d4a66c8b4f2672ff9119191d1b92eb872d2d5f093483682676484246c7720a27.exe
    "C:\Users\Admin\AppData\Local\Temp\d4a66c8b4f2672ff9119191d1b92eb872d2d5f093483682676484246c7720a27.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:376
    • C:\Users\Admin\AppData\Local\Temp\d4a66c8b4f2672ff9119191d1b92eb872d2d5f093483682676484246c7720a27.exe
      "C:\Users\Admin\AppData\Local\Temp\d4a66c8b4f2672ff9119191d1b92eb872d2d5f093483682676484246c7720a27.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2592
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\d4f37aee-d0b3-43a7-8a0d-e6940e71a79e" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3264
      • C:\Users\Admin\AppData\Local\Temp\d4a66c8b4f2672ff9119191d1b92eb872d2d5f093483682676484246c7720a27.exe
        "C:\Users\Admin\AppData\Local\Temp\d4a66c8b4f2672ff9119191d1b92eb872d2d5f093483682676484246c7720a27.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4044
        • C:\Users\Admin\AppData\Local\Temp\d4a66c8b4f2672ff9119191d1b92eb872d2d5f093483682676484246c7720a27.exe
          "C:\Users\Admin\AppData\Local\Temp\d4a66c8b4f2672ff9119191d1b92eb872d2d5f093483682676484246c7720a27.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:224
          • C:\Users\Admin\AppData\Local\670869dc-847f-4533-adbe-027dbb0bc2ea\build2.exe
            "C:\Users\Admin\AppData\Local\670869dc-847f-4533-adbe-027dbb0bc2ea\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4252
            • C:\Users\Admin\AppData\Local\670869dc-847f-4533-adbe-027dbb0bc2ea\build2.exe
              "C:\Users\Admin\AppData\Local\670869dc-847f-4533-adbe-027dbb0bc2ea\build2.exe"
              6⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4648
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\670869dc-847f-4533-adbe-027dbb0bc2ea\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:8
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:4756
          • C:\Users\Admin\AppData\Local\670869dc-847f-4533-adbe-027dbb0bc2ea\build3.exe
            "C:\Users\Admin\AppData\Local\670869dc-847f-4533-adbe-027dbb0bc2ea\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:2684
            • 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:380
  • 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:3084
    • 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:4624

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\mozglue.dll
    Filesize

    133KB

    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • C:\ProgramData\nss3.dll
    Filesize

    1.2MB

    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

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

    2KB

    MD5

    c2ed2c633828a1bcf603a04772f6bc6f

    SHA1

    a2d3abb39d5551c5b594d30d0dcdd05fa5a50085

    SHA256

    7e8561e47f6e0af457bca0ff0ea2fa11f64942e80e2d20e5a9611a9915049808

    SHA512

    5ab5dc3bfbf196b4eeaa40ee06e94c452f271046c7e0b656cf944ab1cdc109130f40d18388adcc4b5eb15de08f996f8650f136f1fa53e2ae8efe1bb0715ea83a

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

    1KB

    MD5

    9bf10855213d2d2b26123cd2a04220b8

    SHA1

    231d2ed3b9098617f196e89cee3c2a82b38b5d40

    SHA256

    a508e5bc0086119681076c2b05889d6f70047f971342d65792776ab7b53ca1e9

    SHA512

    df78a9f4ed0296f9a16d17672758411306e1b3664e9c6aece1ec738da350e2ee703f5c4f30167c4d5b54de8d154a7a4dc7250420c024e26063c8521a333e3dfd

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

    488B

    MD5

    3e2c6bdc2c18510c03855145ecd2cdc7

    SHA1

    00af4303fc9d840ce897a080112fc6fcbe75844b

    SHA256

    1ffc36a166480c796d87f76428f0250be039b1460915ece1bf44d73a4ab36987

    SHA512

    bb07867854b5168754839d9b3eb1d7ab9b0db8e685a5d3b26a82a345f0782011be3867fc3f0945f6512180288afbb7963de7da799b1e9350579639b3e79ec103

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

    482B

    MD5

    ebd1768745e259409895b1833c426679

    SHA1

    1e880de4ef480ef12c97d3d693e2c457d76d2e29

    SHA256

    6a9666f48b8ea87cb5eb0b8de39730b9e52ee541e0635c9ace6df5e1d4a9117c

    SHA512

    a3b34db23eaebd4fb817ab472c11098de07b2d706fb8d17b462e66608a1c313d7c794d1673e80a2e2aa31f4238a7c8266985d2e398e5ce027302175de4814904

  • C:\Users\Admin\AppData\Local\670869dc-847f-4533-adbe-027dbb0bc2ea\build2.exe
    Filesize

    437KB

    MD5

    5bc3c0c24790b3738ab85b644a1c6fc9

    SHA1

    c68547eb157a77f30e88a6c4666f6024765b70d8

    SHA256

    c37e19ba7ca31d3984004ec6534551197c1e4ab710bf26f822924168f17cbe7e

    SHA512

    f7aafcc10e5d1513e523bf7a1aee42316141862ba0d54f5b75ccc18f65a6cd14361728cb4a6a6ea795569431a0bc03792b132269293ba240bd3d9fa1e012c3ab

  • C:\Users\Admin\AppData\Local\670869dc-847f-4533-adbe-027dbb0bc2ea\build2.exe
    Filesize

    437KB

    MD5

    5bc3c0c24790b3738ab85b644a1c6fc9

    SHA1

    c68547eb157a77f30e88a6c4666f6024765b70d8

    SHA256

    c37e19ba7ca31d3984004ec6534551197c1e4ab710bf26f822924168f17cbe7e

    SHA512

    f7aafcc10e5d1513e523bf7a1aee42316141862ba0d54f5b75ccc18f65a6cd14361728cb4a6a6ea795569431a0bc03792b132269293ba240bd3d9fa1e012c3ab

  • C:\Users\Admin\AppData\Local\670869dc-847f-4533-adbe-027dbb0bc2ea\build2.exe
    Filesize

    437KB

    MD5

    5bc3c0c24790b3738ab85b644a1c6fc9

    SHA1

    c68547eb157a77f30e88a6c4666f6024765b70d8

    SHA256

    c37e19ba7ca31d3984004ec6534551197c1e4ab710bf26f822924168f17cbe7e

    SHA512

    f7aafcc10e5d1513e523bf7a1aee42316141862ba0d54f5b75ccc18f65a6cd14361728cb4a6a6ea795569431a0bc03792b132269293ba240bd3d9fa1e012c3ab

  • C:\Users\Admin\AppData\Local\670869dc-847f-4533-adbe-027dbb0bc2ea\build3.exe
    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\670869dc-847f-4533-adbe-027dbb0bc2ea\build3.exe
    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\d4f37aee-d0b3-43a7-8a0d-e6940e71a79e\d4a66c8b4f2672ff9119191d1b92eb872d2d5f093483682676484246c7720a27.exe
    Filesize

    670KB

    MD5

    d4119bd2e05d30c83481f9f2f8fa45d8

    SHA1

    ca9417ec27fd4b4fd94697642c3a0f5ab0e81934

    SHA256

    d4a66c8b4f2672ff9119191d1b92eb872d2d5f093483682676484246c7720a27

    SHA512

    22fad9880248c2a55a906bca74b6b264795a3be4bc4b9a0f7df053e43c83963ddf91e2cf3da3f97c54acb3bafa388ade890e8a4d227e6d87e7b6971195a3a8ab

  • 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/8-190-0x0000000000000000-mapping.dmp
  • memory/224-143-0x0000000000000000-mapping.dmp
  • memory/224-147-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/224-145-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/224-152-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/224-168-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/376-136-0x0000000004A90000-0x0000000004BAB000-memory.dmp
    Filesize

    1.1MB

  • memory/376-135-0x00000000049FE000-0x0000000004A8F000-memory.dmp
    Filesize

    580KB

  • memory/380-159-0x0000000000000000-mapping.dmp
  • memory/2592-142-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2592-132-0x0000000000000000-mapping.dmp
  • memory/2592-140-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2592-134-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2592-137-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2592-133-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2684-156-0x0000000000000000-mapping.dmp
  • memory/3264-138-0x0000000000000000-mapping.dmp
  • memory/4044-146-0x00000000048AC000-0x000000000493D000-memory.dmp
    Filesize

    580KB

  • memory/4044-141-0x0000000000000000-mapping.dmp
  • memory/4252-166-0x00000000005D0000-0x0000000000626000-memory.dmp
    Filesize

    344KB

  • memory/4252-164-0x00000000006BD000-0x00000000006EE000-memory.dmp
    Filesize

    196KB

  • memory/4252-153-0x0000000000000000-mapping.dmp
  • memory/4624-195-0x0000000000000000-mapping.dmp
  • memory/4648-167-0x0000000000400000-0x000000000046A000-memory.dmp
    Filesize

    424KB

  • memory/4648-163-0x0000000000400000-0x000000000046A000-memory.dmp
    Filesize

    424KB

  • memory/4648-169-0x0000000060900000-0x0000000060992000-memory.dmp
    Filesize

    584KB

  • memory/4648-161-0x0000000000400000-0x000000000046A000-memory.dmp
    Filesize

    424KB

  • memory/4648-160-0x0000000000000000-mapping.dmp
  • memory/4648-191-0x0000000000400000-0x000000000046A000-memory.dmp
    Filesize

    424KB

  • memory/4648-165-0x0000000000400000-0x000000000046A000-memory.dmp
    Filesize

    424KB

  • memory/4756-192-0x0000000000000000-mapping.dmp