Analysis

  • max time kernel
    170s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 16:24

General

  • Target

    cdaf240960ef6c5d9b81b9843bafaa56700e8fa848dca85cb401061d22f5ec27.exe

  • Size

    802KB

  • MD5

    102c9d8d99c9f453053d1f49620df11f

  • SHA1

    47ab2f2f660832e3a38f6dee882431a5a2404729

  • SHA256

    cdaf240960ef6c5d9b81b9843bafaa56700e8fa848dca85cb401061d22f5ec27

  • SHA512

    adbe66cb6be6cbc082cda769caed32bd8bd8c514dfc229c54ea173385cfa4ff713b60327f550e27229732f2c1382e0038fe40c8ba16a5d0f5d44314a3a70a04e

  • SSDEEP

    12288:FgORozerFqm6tU2L6kwt0Z9YlU+iyKAqYpBuT+ZlI4O3dRvUC8yr3e9JKjv6JfPf:FZRFxVYJL7jYlU3vAqYphHcLmwCdSRkj

Score
10/10

Malware Config

Extracted

Path

C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\!Decrypt-All-Files-gkbiicl.txt

Ransom Note
Your documents, photos, databases and other important files have been encrypted with strongest encryption and unique key, generated for this computer. Private decryption key is stored on a secret Internet server and nobody can decrypt your files until you pay and obtain the private key. If you see the main locker window, follow the instructions on the locker. Overwise, it's seems that you or your antivirus deleted the locker program. Now you have the last chance to decrypt your files. Open http://tmc2ybfqzgkaeilm.onion.cab or http://tmc2ybfqzgkaeilm.tor2web.org in your browser. They are public gates to the secret server. If you have problems with gates, use direct connection: 1. Download Tor Browser from http://torproject.org 2. In the Tor Browser open the http://tmc2ybfqzgkaeilm.onion/ Note that this server is available via Tor Browser only. Retry in 1 hour if site is not reachable. Copy and paste the following public key in the input form on server. Avoid missprints. OEPEG4O-4HZIGZQ-QJS3R7W-PMHGQY7-YEHARX4-V6O6JSB-KSVIPTP-PEMNULO KKK2XVA-NVDVBAO-KLNVVY6-PQEC4ZN-N5CEVSM-SJWAIFI-Y4VT3AG-A53T7JQ JK237ZR-LSIYTYK-47ZSLIH-27JUMKK-2MIXMKL-JAN7FNP-QCYZAX7-DUWY4VL Follow the instructions on the server.
URLs

http://tmc2ybfqzgkaeilm.onion.cab

http://tmc2ybfqzgkaeilm.tor2web.org

http://tmc2ybfqzgkaeilm.onion/

Extracted

Path

C:\Users\Admin\Documents\!Decrypt-All-Files-gkbiicl.txt

Ransom Note
Your documents, photos, databases and other important files have been encrypted with strongest encryption and unique key, generated for this computer. Private decryption key is stored on a secret Internet server and nobody can decrypt your files until you pay and obtain the private key. If you see the main locker window, follow the instructions on the locker. Overwise, it's seems that you or your antivirus deleted the locker program. Now you have the last chance to decrypt your files. Open http://tmc2ybfqzgkaeilm.onion.cab or http://tmc2ybfqzgkaeilm.tor2web.org in your browser. They are public gates to the secret server. If you have problems with gates, use direct connection: 1. Download Tor Browser from http://torproject.org 2. In the Tor Browser open the http://tmc2ybfqzgkaeilm.onion/ Note that this server is available via Tor Browser only. Retry in 1 hour if site is not reachable. Copy and paste the following public key in the input form on server. Avoid missprints. OEPEG4O-4HZIGZQ-QJS3R7W-PMHGQY7-YEHARX4-V6O6JSB-KSVIPTP-PEMNULO KKK2XVA-NVDVBAO-KLNVVY6-PQEC4ZN-N5CEVSM-SJWAIFI-Y4VT3AG-A53T7JQ JK237ZR-LSIYTYK-47ZSLIH-27JUMKK-2MIX64L-FXN7FNP-QCYZAX7-DUWYOVY Follow the instructions on the server.
URLs

http://tmc2ybfqzgkaeilm.onion.cab

http://tmc2ybfqzgkaeilm.tor2web.org

http://tmc2ybfqzgkaeilm.onion/

Signatures

  • CTB-Locker

    Ransomware family which uses Tor to hide its C2 communications.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Executes dropped EXE 2 IoCs
  • Modifies extensions of user files 4 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Loads dropped DLL 10 IoCs
  • Drops desktop.ini file(s) 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 10 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies data under HKEY_USERS 19 IoCs
  • Suspicious behavior: EnumeratesProcesses 54 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Sets desktop wallpaper using registry
    • Suspicious use of UnmapMainImage
    PID:1296
    • C:\Users\Admin\AppData\Local\Temp\cdaf240960ef6c5d9b81b9843bafaa56700e8fa848dca85cb401061d22f5ec27.exe
      "C:\Users\Admin\AppData\Local\Temp\cdaf240960ef6c5d9b81b9843bafaa56700e8fa848dca85cb401061d22f5ec27.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1076
      • C:\Users\Admin\AppData\Local\Temp\cdaf240960ef6c5d9b81b9843bafaa56700e8fa848dca85cb401061d22f5ec27.exe
        "C:\Users\Admin\AppData\Local\Temp\cdaf240960ef6c5d9b81b9843bafaa56700e8fa848dca85cb401061d22f5ec27.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1520
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k DcomLaunch
    1⤵
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Modifies data under HKEY_USERS
    • Suspicious use of WriteProcessMemory
    PID:576
    • C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
      2⤵
        PID:384
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {4D05BECB-61AA-408F-9573-C943A26D1F9F} S-1-5-18:NT AUTHORITY\System:Service:
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1768
      • C:\Users\Admin\AppData\Local\Temp\gejzibk.exe
        C:\Users\Admin\AppData\Local\Temp\gejzibk.exe
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in System32 directory
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1936
        • C:\Users\Admin\AppData\Local\Temp\gejzibk.exe
          "C:\Users\Admin\AppData\Local\Temp\gejzibk.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:756
          • C:\Windows\SysWOW64\vssadmin.exe
            vssadmin delete shadows all
            4⤵
            • Interacts with shadow copies
            PID:588
          • C:\Users\Admin\AppData\Local\Temp\gejzibk.exe
            "C:\Users\Admin\AppData\Local\Temp\gejzibk.exe" -u
            4⤵
              PID:960

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\Adobe\qrsyusl

        Filesize

        654B

        MD5

        8e16f5c2211bad228e71f0c63f1311eb

        SHA1

        22796afa38e5501d07538ae4ee9c4edbb25d4144

        SHA256

        42e3d4a70df1882d3f0947228e34c37d8b44de881eb7a86b6581de6136837ccd

        SHA512

        2bec778f818083991b31cbe83c1032700b911084e88bf8d440d50b3ebbfdde034b8d0e2d0da985a765f49f418671944e90b093b82f1dcb4d71b9606f345f8914

      • C:\ProgramData\Adobe\qrsyusl

        Filesize

        654B

        MD5

        8e16f5c2211bad228e71f0c63f1311eb

        SHA1

        22796afa38e5501d07538ae4ee9c4edbb25d4144

        SHA256

        42e3d4a70df1882d3f0947228e34c37d8b44de881eb7a86b6581de6136837ccd

        SHA512

        2bec778f818083991b31cbe83c1032700b911084e88bf8d440d50b3ebbfdde034b8d0e2d0da985a765f49f418671944e90b093b82f1dcb4d71b9606f345f8914

      • C:\ProgramData\Adobe\qrsyusl

        Filesize

        654B

        MD5

        cc191e0b1acb113e62ccd814c0dcc4c5

        SHA1

        1531d15991a39b45d498533403ce5f92f72514a1

        SHA256

        c08be256ce2bd417f9f7f7de35c56ac696b0b850cb8c58887b97bf163a946fd9

        SHA512

        d49c52920d615cdbb8824da35e84daa968f887e48445e1672ee7f2bea0872400e6bba7eef97fd478ed8f44ceebd6ff9e7b5062f8578580584ddf64d2841b44ac

      • C:\ProgramData\Adobe\qrsyusl

        Filesize

        654B

        MD5

        4fd35ac8fd4dd495940e51809f8fbb6d

        SHA1

        96923d436cbda0ecb64decb4ca41921ca20f48d6

        SHA256

        b7105ac270da4cb8ea70a2e75f37010779f70cc050aefddc3bb6f69275db82b0

        SHA512

        a95dd141b5b13a6edd693c1e7760115c781ea6bcead1406342de51f0f39273d5ead5653d51caac9dcf35f965a120264d56da7a5c75ec88fae330344cd09de719

      • C:\Users\Admin\AppData\Local\Temp\gejzibk.exe

        Filesize

        802KB

        MD5

        102c9d8d99c9f453053d1f49620df11f

        SHA1

        47ab2f2f660832e3a38f6dee882431a5a2404729

        SHA256

        cdaf240960ef6c5d9b81b9843bafaa56700e8fa848dca85cb401061d22f5ec27

        SHA512

        adbe66cb6be6cbc082cda769caed32bd8bd8c514dfc229c54ea173385cfa4ff713b60327f550e27229732f2c1382e0038fe40c8ba16a5d0f5d44314a3a70a04e

      • C:\Users\Admin\AppData\Local\Temp\gejzibk.exe

        Filesize

        802KB

        MD5

        102c9d8d99c9f453053d1f49620df11f

        SHA1

        47ab2f2f660832e3a38f6dee882431a5a2404729

        SHA256

        cdaf240960ef6c5d9b81b9843bafaa56700e8fa848dca85cb401061d22f5ec27

        SHA512

        adbe66cb6be6cbc082cda769caed32bd8bd8c514dfc229c54ea173385cfa4ff713b60327f550e27229732f2c1382e0038fe40c8ba16a5d0f5d44314a3a70a04e

      • C:\Users\Admin\AppData\Local\Temp\gejzibk.exe

        Filesize

        802KB

        MD5

        102c9d8d99c9f453053d1f49620df11f

        SHA1

        47ab2f2f660832e3a38f6dee882431a5a2404729

        SHA256

        cdaf240960ef6c5d9b81b9843bafaa56700e8fa848dca85cb401061d22f5ec27

        SHA512

        adbe66cb6be6cbc082cda769caed32bd8bd8c514dfc229c54ea173385cfa4ff713b60327f550e27229732f2c1382e0038fe40c8ba16a5d0f5d44314a3a70a04e

      • C:\Users\Admin\AppData\Roaming\READ-ME-FIRST.TXT

        Filesize

        654KB

        MD5

        344689f5946142895cc657fb63041440

        SHA1

        b59c03f39c9dca8ce57dc505d155b54ab0571166

        SHA256

        73d6024f6026b7bc77010a5a957e70910ecce31fddc9f09bf2d5d3256f0c0a1c

        SHA512

        0796f9f3c91938d386bd2cb7d251535e71a8f3ef345cb9d4dba5dd3115a03321692b768e9f7010f76268ca9e5939f83ffbad106d5928a08af8f3f9bfd7862975

      • C:\Users\Admin\Desktop\ConvertFromMount.JPEG.gkbiicl

        Filesize

        376KB

        MD5

        d34f8e8ae63a9d3065f22c6b999a6f4d

        SHA1

        babea9b69fe51126aa7b0f2c5d9beff1d5c7deaa

        SHA256

        35029b0bfb0e9381859d331f1fbe309f550b515d0f7da6f6210463f97d28c317

        SHA512

        46ec8d4f405c12159fe58e826800442906cd11c3d5937a089a4edfa40b24a9bf0eac2e5b4bc0559dde33102eef750ffb60fa10c1afa312140114c54c730be3a9

      • C:\Users\Admin\Desktop\DisableBackup.ODS.gkbiicl

        Filesize

        392KB

        MD5

        30ad54b3157b7853fdbecf4884350f27

        SHA1

        a639a330c1b1e939368e97391fe834946337a18c

        SHA256

        5a6bde78f7099becee982e42fd89d596ed85294c7d1845da457b698efe3bbb18

        SHA512

        c76fbaea01bdca15438d9387c3031ffa80efaf3a99a6279c7b2df4f9c3a01ac1422e9403798223a4f8c81b167e4b65fc4d2f74d0ab37c026b5a459ff279cb13d

      • C:\Users\Admin\Desktop\PublishPing.PPTX.gkbiicl

        Filesize

        533KB

        MD5

        aaaa2621cc87fa53bcfccbc25f4cc132

        SHA1

        fd5dbe89aa73ff1310cfc1d5d7f4d9f0e375add6

        SHA256

        4fd2d02f77d9b64a25d40d211dc9362983c4d2693d1c2d9b47f3d3a7e43f2e8f

        SHA512

        e170bfe9654d32f2441801e621680885249b9cc51e9703f9531bcd2df440fde5c05ffd68871ad1a7f9f080e60ffb125b06b969c4f3596a72be28318488c53f08

      • C:\Users\Admin\Desktop\SkipRegister.ODS.gkbiicl

        Filesize

        580KB

        MD5

        9e0cd15aa0004d35472169b46fbd4aac

        SHA1

        821b9d13078fc61121b99a6ab14eaf2b53f0af11

        SHA256

        697984d0b15edc46edb35620aa2f0fc34210c6c708b43ef23d1931a6c748b307

        SHA512

        df48cfb30728350fc45f181e420aa029bea3611f4db43d4874565ff72a8575c7e741f8ba3e94b6e4b4ed4dfb8e527ca30d80ffe625478aed84ffcb2e4fa14bb1

      • \Users\Admin\AppData\Local\Temp\gejzibk.exe

        Filesize

        176KB

        MD5

        a9417cf53ed65a5626b4cf14cc3d395c

        SHA1

        596d9fdeb0f301ac213249be4e45f0990b528074

        SHA256

        345af4449c61d7af304c229ecee267c3caff4e3c7507ae328a34a7dce1c68598

        SHA512

        d8eae8b2b5cab3baef15c7cbb51ad473bdca7a91182af82b9f4acbb886a4dcec493c7a4ddfbb463542827c248d65bec8809fdef41e880c796b15b14322a2a574

      • \Users\Admin\AppData\Local\Temp\gejzibk.exe

        Filesize

        802KB

        MD5

        102c9d8d99c9f453053d1f49620df11f

        SHA1

        47ab2f2f660832e3a38f6dee882431a5a2404729

        SHA256

        cdaf240960ef6c5d9b81b9843bafaa56700e8fa848dca85cb401061d22f5ec27

        SHA512

        adbe66cb6be6cbc082cda769caed32bd8bd8c514dfc229c54ea173385cfa4ff713b60327f550e27229732f2c1382e0038fe40c8ba16a5d0f5d44314a3a70a04e

      • \Users\Admin\AppData\Local\Temp\nso6220.tmp\UserInfo.dll

        Filesize

        4KB

        MD5

        d9a3fc12d56726dde60c1ead1df366f7

        SHA1

        f531768159c14f07ac896437445652b33750a237

        SHA256

        401f1a02000ff7cf9853d964dcba77e6f0fa8e57256b11ed3c01171d7a97388a

        SHA512

        6b06e3446df419151dd20cdb1d9c595fe9fb0972e7dfc50dadeea9f868d8ef0cd4cefcb18c7ebfc0d2a3e9171f8aa1f9fe762f54c374667f6060e8ce7e845f51

      • \Users\Admin\AppData\Local\Temp\nso6220.tmp\UserInfo.dll

        Filesize

        4KB

        MD5

        d9a3fc12d56726dde60c1ead1df366f7

        SHA1

        f531768159c14f07ac896437445652b33750a237

        SHA256

        401f1a02000ff7cf9853d964dcba77e6f0fa8e57256b11ed3c01171d7a97388a

        SHA512

        6b06e3446df419151dd20cdb1d9c595fe9fb0972e7dfc50dadeea9f868d8ef0cd4cefcb18c7ebfc0d2a3e9171f8aa1f9fe762f54c374667f6060e8ce7e845f51

      • \Users\Admin\AppData\Local\Temp\nso6220.tmp\UserInfo.dll

        Filesize

        4KB

        MD5

        d9a3fc12d56726dde60c1ead1df366f7

        SHA1

        f531768159c14f07ac896437445652b33750a237

        SHA256

        401f1a02000ff7cf9853d964dcba77e6f0fa8e57256b11ed3c01171d7a97388a

        SHA512

        6b06e3446df419151dd20cdb1d9c595fe9fb0972e7dfc50dadeea9f868d8ef0cd4cefcb18c7ebfc0d2a3e9171f8aa1f9fe762f54c374667f6060e8ce7e845f51

      • \Users\Admin\AppData\Local\Temp\nso6220.tmp\coelenterates.dll

        Filesize

        382KB

        MD5

        f2ce2e755d4f18546550ae4a7f2a6626

        SHA1

        2d4c874c00dc8006a75bd8e700d77952a08d101f

        SHA256

        aa237a70b8b8c08f00bb26fa5c9529b2a41e20222c18d40244459baad2fed3c7

        SHA512

        5cb452aaf18ee58bb49fd03581c58f8edd5d9c9c087f95b29638069c6fa5ea08999fc29bee8c95d3f346e979a9fa42f59a01e41f1019c5ea58725ef2567e9855

      • \Windows\Temp\nsy8826.tmp\UserInfo.dll

        Filesize

        4KB

        MD5

        d9a3fc12d56726dde60c1ead1df366f7

        SHA1

        f531768159c14f07ac896437445652b33750a237

        SHA256

        401f1a02000ff7cf9853d964dcba77e6f0fa8e57256b11ed3c01171d7a97388a

        SHA512

        6b06e3446df419151dd20cdb1d9c595fe9fb0972e7dfc50dadeea9f868d8ef0cd4cefcb18c7ebfc0d2a3e9171f8aa1f9fe762f54c374667f6060e8ce7e845f51

      • \Windows\Temp\nsy8826.tmp\UserInfo.dll

        Filesize

        4KB

        MD5

        d9a3fc12d56726dde60c1ead1df366f7

        SHA1

        f531768159c14f07ac896437445652b33750a237

        SHA256

        401f1a02000ff7cf9853d964dcba77e6f0fa8e57256b11ed3c01171d7a97388a

        SHA512

        6b06e3446df419151dd20cdb1d9c595fe9fb0972e7dfc50dadeea9f868d8ef0cd4cefcb18c7ebfc0d2a3e9171f8aa1f9fe762f54c374667f6060e8ce7e845f51

      • \Windows\Temp\nsy8826.tmp\UserInfo.dll

        Filesize

        4KB

        MD5

        d9a3fc12d56726dde60c1ead1df366f7

        SHA1

        f531768159c14f07ac896437445652b33750a237

        SHA256

        401f1a02000ff7cf9853d964dcba77e6f0fa8e57256b11ed3c01171d7a97388a

        SHA512

        6b06e3446df419151dd20cdb1d9c595fe9fb0972e7dfc50dadeea9f868d8ef0cd4cefcb18c7ebfc0d2a3e9171f8aa1f9fe762f54c374667f6060e8ce7e845f51

      • \Windows\Temp\nsy8826.tmp\coelenterates.dll

        Filesize

        382KB

        MD5

        f2ce2e755d4f18546550ae4a7f2a6626

        SHA1

        2d4c874c00dc8006a75bd8e700d77952a08d101f

        SHA256

        aa237a70b8b8c08f00bb26fa5c9529b2a41e20222c18d40244459baad2fed3c7

        SHA512

        5cb452aaf18ee58bb49fd03581c58f8edd5d9c9c087f95b29638069c6fa5ea08999fc29bee8c95d3f346e979a9fa42f59a01e41f1019c5ea58725ef2567e9855

      • memory/384-104-0x0000000000000000-mapping.dmp

      • memory/576-88-0x0000000001180000-0x00000000011F7000-memory.dmp

        Filesize

        476KB

      • memory/576-90-0x0000000001180000-0x00000000011F7000-memory.dmp

        Filesize

        476KB

      • memory/576-94-0x000007FEFB931000-0x000007FEFB933000-memory.dmp

        Filesize

        8KB

      • memory/588-105-0x0000000000000000-mapping.dmp

      • memory/756-87-0x0000000000880000-0x0000000000ACB000-memory.dmp

        Filesize

        2.3MB

      • memory/756-82-0x0000000000401FA3-mapping.dmp

      • memory/1076-54-0x0000000075141000-0x0000000075143000-memory.dmp

        Filesize

        8KB

      • memory/1520-67-0x0000000000840000-0x0000000000A8B000-memory.dmp

        Filesize

        2.3MB

      • memory/1520-65-0x0000000000620000-0x000000000083A000-memory.dmp

        Filesize

        2.1MB

      • memory/1520-63-0x0000000000401FA3-mapping.dmp

      • memory/1520-62-0x0000000000400000-0x00000000004A5000-memory.dmp

        Filesize

        660KB

      • memory/1520-60-0x0000000000400000-0x00000000004A5000-memory.dmp

        Filesize

        660KB

      • memory/1520-68-0x0000000000400000-0x00000000004A4600-memory.dmp

        Filesize

        657KB

      • memory/1520-59-0x0000000000400000-0x00000000004A5000-memory.dmp

        Filesize

        660KB

      • memory/1936-70-0x0000000000000000-mapping.dmp