Resubmissions

31-12-2023 22:42

231231-2m6ykafdhm 10

31-12-2023 22:35

231231-2hqqsafdap 10

Analysis

  • max time kernel
    1s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-12-2023 22:42

General

  • Target

    e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe

  • Size

    690KB

  • MD5

    36172786193e5f7a14f53d687ff81193

  • SHA1

    c000948357737a3efa4d141e4bb7439aed41abb5

  • SHA256

    e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2

  • SHA512

    e9fc808b1b48aab02aad0574bbb71b8d4815a19a0c03009e9c5e2bcedfc6320ffaa8aa040fc1562aa8be5ac2d19d9a5c44b8344147af0236ad2ce54bc5e2c12e

  • SSDEEP

    12288:PQ4Hnb0GvoG5VfM93lbDOKOoRjDgptHZQ8er2wieqcgqAwXEppmubS:o6nIGvoMVwOKjtgpt6BVJAwEpI

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .cdqw

  • offline_id

    mMsRxMUuXypapZbGOAfxD9pczHmW8zVRP7Pgjwt1

  • payload_url

    http://brusuax.com/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-99MNqXMrdS Price of private key and decrypt software is $1999. Discount 50% available if you contact us first 72 hours, that's price for you is $999. 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: 0840ASdw

rsa_pubkey.plain

Signatures

  • Detect Vidar Stealer 6 IoCs
  • 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
  • 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 3 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe
    "C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2844
    • C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe
      "C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2428
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\03e4e629-603b-46e2-be8f-0c72ba4a50d5" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1160
      • C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe
        "C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
          PID:1864
    • C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe
      "C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe" --Admin IsNotAutoStart IsNotTask
      1⤵
        PID:1620
        • C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build2.exe
          "C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build2.exe"
          2⤵
            PID:2724
            • C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build2.exe
              "C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build2.exe"
              3⤵
                PID:2868
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 2040
                  4⤵
                  • Program crash
                  PID:4348
            • C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build3.exe
              "C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build3.exe"
              2⤵
                PID:636
                • C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build3.exe
                  "C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build3.exe"
                  3⤵
                    PID:1820
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2868 -ip 2868
                1⤵
                  PID:224
                • 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"
                  1⤵
                  • Creates scheduled task(s)
                  PID:4784
                • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
                  C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
                  1⤵
                    PID:4776
                    • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
                      C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
                      2⤵
                        PID:3940
                    • 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"
                      1⤵
                      • Creates scheduled task(s)
                      PID:3620
                    • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
                      C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
                      1⤵
                        PID:1968

                      Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

                        Filesize

                        1KB

                        MD5

                        066f25f02e2b2ee2af54544028f9dd37

                        SHA1

                        9167983ad24f65c762b7622a8f43e8a218cd72b5

                        SHA256

                        b208bbc90869834e2fe53ae058b5ab6c200f5c5a00d8b536989f65071568be8c

                        SHA512

                        d79e1b28bae5f2026cbc142aa0ee78552d20b477ef507b12ba36f1522c7be1b20b4d0e218a3755537d5610ef0852744e673149944f8b337ace006280e71c2beb

                      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

                        Filesize

                        724B

                        MD5

                        8202a1cd02e7d69597995cabbe881a12

                        SHA1

                        8858d9d934b7aa9330ee73de6c476acf19929ff6

                        SHA256

                        58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

                        SHA512

                        97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

                      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

                        Filesize

                        410B

                        MD5

                        30b437886db3915d345d2266cb989a83

                        SHA1

                        15cad5dffad504aa3d82efda3a1f7df6fb3231a3

                        SHA256

                        8073ebcd565bea993af43d8ab063d8f80a18a19751f7385a44f1626c539bf2bb

                        SHA512

                        2994a06789461c1103c1db6799258ddddb6ebf46a5995d28f38b504b4060a288242e48cfb3d39b760b9b3a560eab36586e62dd8fa017e629b3995b880f458e81

                      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

                        Filesize

                        392B

                        MD5

                        357d9caf437c34d140146ed8e4e4f5aa

                        SHA1

                        f069b3fe94fc133308fa0bd023ef602f8af470e4

                        SHA256

                        b571c9167f19f95f29631db1ffd384557513b9b2dfed2d5fbacf6ef054309624

                        SHA512

                        763bccb406e1927310a4a0827d21810e2eed243c8fb3e235a0f366c7909460c7cb629b8aa81c197b321a4e3333a65262304481cadf45349d78e0219bba80eed5

                      • C:\Users\Admin\AppData\Local\03e4e629-603b-46e2-be8f-0c72ba4a50d5\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe

                        Filesize

                        42KB

                        MD5

                        bd2902cd4c121e57b162a80f2aa6fd5b

                        SHA1

                        90dd0b90db350921ce878685146d5a9ea2d37564

                        SHA256

                        af92f1f9780fe84af302989117a3376003ac6c82d5e16f5650a876ee7d0f6a5f

                        SHA512

                        d488ea020eb449e837da264da6b13e4f093276f7ebdd9ff763b1dfee0877a32c6c3ae8e8284bad9ef504e1d9507450955256358f95e5d1936759b83ba28c059b

                      • C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build2.exe

                        Filesize

                        8KB

                        MD5

                        f4effaf47608341ac2c559179e626fa7

                        SHA1

                        a98100a112433a7c28da78a1a676a6911e5d5484

                        SHA256

                        926b480cea596b51530362aa9cf028e9adcb8d12b8b87e90f8cd0543ec8a3444

                        SHA512

                        ad92f11aff655f65b067514e196a67c20ae1b53df4bb67318fd41ddbb54236b0dc400c78edf52d6cc9833510069ca7032e1ec90adf8b2073d8c9f24f21e47903

                      • C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build2.exe

                        Filesize

                        4KB

                        MD5

                        b57548eac360176afa1d21522e6d2be5

                        SHA1

                        20f7fdd29c49ec52e18c0cd87236b3664aef8ba5

                        SHA256

                        f324f74b1d4648d5d30b97e0228c0b406c5be2cdff081831afb80fe6a9eed01b

                        SHA512

                        4deb83a8344bf73abba8c649f5108f42dea66ad9039e6291740b8acf93fdc634edfaeeac16a816f4bcba4cacbd2eac9e9bff5931c4e52fcc084301dc36059daa

                      • C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build3.exe

                        Filesize

                        4KB

                        MD5

                        f93acd7b5a3b990dcd43f816e734a09d

                        SHA1

                        be50cf251c624f81d80b56c69560f8aeef4a42a6

                        SHA256

                        e242527abf7f93c8d382e4a1874fd32c29fbf13dbe6f6a017b160885986d7e75

                        SHA512

                        e2ddba645dee962d4693b1f72b912cddfad8604a0f75e922f04bc76b2c73b6219ed87ad18812d386907422c538d9d1272cdd9b8410c7049b633793e9dca092c9

                      • C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build3.exe

                        Filesize

                        299KB

                        MD5

                        41b883a061c95e9b9cb17d4ca50de770

                        SHA1

                        1daf96ec21d53d9a4699cea9b4db08cda6fbb5ad

                        SHA256

                        fef2c8ca07c500e416fd7700a381c39899ee26ce1119f62e7c65cf922ce8b408

                        SHA512

                        cdd1bb3a36182575cd715a52815765161eeaa3849e72c1c2a9a4e84cc43af9f8ec4997e642702bb3de41f162d2e8fd8717f6f8302bba5306821ee4d155626319

                      • C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build3.exe

                        Filesize

                        24KB

                        MD5

                        ee4537d5a8269a322c0dee83e55e923d

                        SHA1

                        4c28f57fe6263d162a4075de31fa4830d4a01c65

                        SHA256

                        5d159988afbd5404db77fb746054a7f64dd512b155486ead0ab5af9d389c3f98

                        SHA512

                        02931dd65bca023459cd6a3a336eabc72809465582ca1970dc80874f529ed69946b45021f2be8b14ebf3643a5c3928631d8adcdd2b2713d19c3029d51b3d026f

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

                        Filesize

                        33KB

                        MD5

                        57fc27fe7efc2c60c6026e863c9a2486

                        SHA1

                        1608725e0eaf5d555b8c37689bbf41c6583d7da6

                        SHA256

                        bd63220b0a73d3c1bc661bfa297398dc6dd225eba4b751b1359a02eb8fed9cfa

                        SHA512

                        03a4f0fc068c84d6e400d743e2c17bcc784f09e6cb6195dcfd2ffac58b21f642b50b14d37ac0875fc218b3604829634176c0b1ad68d5096324068377449a2f59

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

                        Filesize

                        8KB

                        MD5

                        74f5af9ea734a6d8da20fdc867d47b1d

                        SHA1

                        b2e4d15cf1d35619cbc75c599b8cab28453611d5

                        SHA256

                        cfbbdce0e0af15a110649ca43b3f0f1d7082eae29153d5f1da46da9133106711

                        SHA512

                        638527a84a13272bc119caefe84168c4dca8677aeba9ad6a70c03da5fc2d8a3e7c4685b27b3e30a7c94eb57b104189e356c37f1b141fc6660201c07a79faba98

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

                        Filesize

                        30KB

                        MD5

                        d971d77172d144198ae3ed660512fc9f

                        SHA1

                        1f5ac34895f2ba1493e19708e0845da3ac57df11

                        SHA256

                        5018b255d88c26d888bd8b104b861807fe504a015f2bd5fc7776d3cbafc753a6

                        SHA512

                        53c6733a8f109f7038969b3ec9f48f8cbd9610d7259d7aea7717cf014143b67ad1ba88950a89d037914ac844de47892e5e1cd162cddbbde5c22f2ecdae6e12a5

                      • memory/636-90-0x0000000000A4D000-0x0000000000A5D000-memory.dmp

                        Filesize

                        64KB

                      • memory/636-92-0x0000000000950000-0x0000000000954000-memory.dmp

                        Filesize

                        16KB

                      • memory/1620-33-0x0000000000400000-0x0000000000537000-memory.dmp

                        Filesize

                        1.2MB

                      • memory/1620-34-0x0000000000400000-0x0000000000537000-memory.dmp

                        Filesize

                        1.2MB

                      • memory/1620-40-0x0000000000400000-0x0000000000537000-memory.dmp

                        Filesize

                        1.2MB

                      • memory/1620-41-0x0000000000400000-0x0000000000537000-memory.dmp

                        Filesize

                        1.2MB

                      • memory/1620-38-0x0000000000400000-0x0000000000537000-memory.dmp

                        Filesize

                        1.2MB

                      • memory/1620-42-0x0000000000400000-0x0000000000537000-memory.dmp

                        Filesize

                        1.2MB

                      • memory/1620-25-0x0000000000400000-0x0000000000537000-memory.dmp

                        Filesize

                        1.2MB

                      • memory/1620-26-0x0000000000400000-0x0000000000537000-memory.dmp

                        Filesize

                        1.2MB

                      • memory/1620-54-0x0000000000400000-0x0000000000537000-memory.dmp

                        Filesize

                        1.2MB

                      • memory/1620-24-0x0000000000400000-0x0000000000537000-memory.dmp

                        Filesize

                        1.2MB

                      • memory/1620-75-0x0000000000400000-0x0000000000537000-memory.dmp

                        Filesize

                        1.2MB

                      • memory/1820-95-0x0000000000400000-0x0000000000406000-memory.dmp

                        Filesize

                        24KB

                      • memory/1820-96-0x0000000000410000-0x00000000004D9000-memory.dmp

                        Filesize

                        804KB

                      • memory/1820-87-0x0000000000400000-0x0000000000406000-memory.dmp

                        Filesize

                        24KB

                      • memory/1820-93-0x0000000000400000-0x0000000000406000-memory.dmp

                        Filesize

                        24KB

                      • memory/1864-22-0x00000000023D0000-0x0000000002471000-memory.dmp

                        Filesize

                        644KB

                      • memory/2428-19-0x0000000000400000-0x0000000000537000-memory.dmp

                        Filesize

                        1.2MB

                      • memory/2428-5-0x0000000000400000-0x0000000000537000-memory.dmp

                        Filesize

                        1.2MB

                      • memory/2428-6-0x0000000000400000-0x0000000000537000-memory.dmp

                        Filesize

                        1.2MB

                      • memory/2428-4-0x0000000000400000-0x0000000000537000-memory.dmp

                        Filesize

                        1.2MB

                      • memory/2428-3-0x0000000000400000-0x0000000000537000-memory.dmp

                        Filesize

                        1.2MB

                      • memory/2724-60-0x0000000000AC0000-0x0000000000AEA000-memory.dmp

                        Filesize

                        168KB

                      • memory/2724-59-0x0000000000B60000-0x0000000000C60000-memory.dmp

                        Filesize

                        1024KB

                      • memory/2844-2-0x00000000026F0000-0x000000000280B000-memory.dmp

                        Filesize

                        1.1MB

                      • memory/2844-1-0x00000000025C0000-0x000000000265E000-memory.dmp

                        Filesize

                        632KB

                      • memory/2868-81-0x0000000000400000-0x000000000063D000-memory.dmp

                        Filesize

                        2.2MB

                      • memory/2868-80-0x0000000000400000-0x000000000063D000-memory.dmp

                        Filesize

                        2.2MB

                      • memory/2868-56-0x0000000000400000-0x000000000063D000-memory.dmp

                        Filesize

                        2.2MB

                      • memory/2868-61-0x0000000000400000-0x000000000063D000-memory.dmp

                        Filesize

                        2.2MB

                      • memory/2868-62-0x0000000000400000-0x000000000063D000-memory.dmp

                        Filesize

                        2.2MB

                      • memory/4776-110-0x0000000000930000-0x0000000000A30000-memory.dmp

                        Filesize

                        1024KB