Analysis

  • max time kernel
    156s
  • max time network
    127s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    30-08-2021 06:40

General

  • Target

    c00cc2fd6fe678514c0a5de3fcbf5dcb35400a70c08a5cd9082432e437809a6c.exe

  • Size

    211KB

  • MD5

    3f180ec284fad029c3be0801537f7ca4

  • SHA1

    95595bb4ed18e2b00b9328b98066b9b5c47c9276

  • SHA256

    c00cc2fd6fe678514c0a5de3fcbf5dcb35400a70c08a5cd9082432e437809a6c

  • SHA512

    25dbd0ca473056c8ebb0a666b20b5dc7b2d5379cfbd584cfaf108aa12492e2ebfe24bf0917ca2f7787b66e837dc075dea9e6fb556e2c8fcebb7057c75a9f2380

Malware Config

Extracted

Path

C:\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT

Family

buran

Ransom Note
!!! ALL YOUR FILES ARE ENCRYPTED !!! All your files, documents, photos, databases and other important files are encrypted. You are not able to decrypt it by yourself! The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recover your files. PAY FAST 590$=0.013 btc or the price will increase tomorrow bitcoin address bc1qqxnp9z0ff8x852dyflp5r9r6rzse8jl5hzmqz8 To be sure we have the decryptor and it works you can send an email: [email protected] and decrypt one file for free. But this file should be of not valuable! Do you really want to restore your files? [email protected] TELEGRAM @ payfast290 Your personal ID: 1DA-859-EE1 Attention! * Do not rename encrypted files. * Do not try to decrypt your data using third party software, it may cause permanent data loss. * Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.

Extracted

Family

smokeloader

Version

2020

C2

http://readinglistforaugust1.xyz/

http://readinglistforaugust2.xyz/

http://readinglistforaugust3.xyz/

http://readinglistforaugust4.xyz/

http://readinglistforaugust5.xyz/

http://readinglistforaugust6.xyz/

http://readinglistforaugust7.xyz/

http://readinglistforaugust8.xyz/

http://readinglistforaugust9.xyz/

http://readinglistforaugust10.xyz/

http://readinglistforaugust1.site/

http://readinglistforaugust2.site/

http://readinglistforaugust3.site/

http://readinglistforaugust4.site/

http://readinglistforaugust5.site/

http://readinglistforaugust6.site/

http://readinglistforaugust7.site/

http://readinglistforaugust8.site/

http://readinglistforaugust9.site/

http://readinglistforaugust10.site/

rc4.i32
rc4.i32

Signatures

  • Buran

    Ransomware-as-a-service based on the VegaLocker family first identified in 2019.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Executes dropped EXE 4 IoCs
  • Deletes itself 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 55 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c00cc2fd6fe678514c0a5de3fcbf5dcb35400a70c08a5cd9082432e437809a6c.exe
    "C:\Users\Admin\AppData\Local\Temp\c00cc2fd6fe678514c0a5de3fcbf5dcb35400a70c08a5cd9082432e437809a6c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2228
    • C:\Users\Admin\AppData\Local\Temp\c00cc2fd6fe678514c0a5de3fcbf5dcb35400a70c08a5cd9082432e437809a6c.exe
      "C:\Users\Admin\AppData\Local\Temp\c00cc2fd6fe678514c0a5de3fcbf5dcb35400a70c08a5cd9082432e437809a6c.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2328
  • C:\Users\Admin\AppData\Local\Temp\BADA.exe
    C:\Users\Admin\AppData\Local\Temp\BADA.exe
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:1484
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exe" -start
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Suspicious use of WriteProcessMemory
      PID:1588
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /C wmic shadowcopy delete
        3⤵
          PID:196
          • C:\Windows\SysWOW64\Wbem\WMIC.exe
            wmic shadowcopy delete
            4⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3552
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /C bcdedit /set {default} recoveryenabled no
          3⤵
            PID:188
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures
            3⤵
              PID:1192
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /C wbadmin delete catalog -quiet
              3⤵
                PID:1104
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /C vssadmin delete shadows /all /quiet
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:1052
                • C:\Windows\SysWOW64\vssadmin.exe
                  vssadmin delete shadows /all /quiet
                  4⤵
                  • Interacts with shadow copies
                  PID:2544
              • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exe
                "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exe" -agent 0
                3⤵
                • Executes dropped EXE
                • Drops file in Program Files directory
                PID:644
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            1⤵
              PID:3156
            • C:\Windows\explorer.exe
              C:\Windows\explorer.exe
              1⤵
                PID:2132
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                  PID:2096
                • C:\Windows\explorer.exe
                  C:\Windows\explorer.exe
                  1⤵
                    PID:3704
                  • C:\Windows\SysWOW64\explorer.exe
                    C:\Windows\SysWOW64\explorer.exe
                    1⤵
                      PID:2360
                    • C:\Windows\explorer.exe
                      C:\Windows\explorer.exe
                      1⤵
                        PID:2884
                      • C:\Windows\SysWOW64\explorer.exe
                        C:\Windows\SysWOW64\explorer.exe
                        1⤵
                          PID:1800
                        • C:\Windows\explorer.exe
                          C:\Windows\explorer.exe
                          1⤵
                            PID:2500
                          • C:\Windows\SysWOW64\explorer.exe
                            C:\Windows\SysWOW64\explorer.exe
                            1⤵
                              PID:2428
                            • C:\Windows\system32\vssvc.exe
                              C:\Windows\system32\vssvc.exe
                              1⤵
                              • Suspicious use of AdjustPrivilegeToken
                              PID:3164
                            • C:\Users\Admin\AppData\Roaming\vuegjsf
                              C:\Users\Admin\AppData\Roaming\vuegjsf
                              1⤵
                              • Executes dropped EXE
                              PID:1172

                            Network

                            MITRE ATT&CK Enterprise v6

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3F26ED5DE6B4E859CCCA6035ECB8D9CB

                              MD5

                              5703edef7cb0f99305a6b18845e0443e

                              SHA1

                              fb6f022ebde210306e1a6575462d6451e98af454

                              SHA256

                              e4ce02059eb175c30879041d610db7b8798cdf57a4c67afc83c125c2db36e883

                              SHA512

                              4631853bda1498ff3cace6a348fd2d6770edd0fec166707c3afebff09644f34e29a7a6dd3e9cb167c40e8b5fa1fbbc80ba26d80b4d939daf56278c276b07ada4

                            • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\204C1AA6F6114E6A513754A2AB5760FA_0673414C08DE7F919AE3F6C4CC65AEEE

                              MD5

                              888f7457c332ac5e1897316e159f58c1

                              SHA1

                              a3047c6e978158dfae29b5735e8131ec1b30703d

                              SHA256

                              c2c14652875bfeb1ed529202da6d45eb974acab193c005908cf90b8c5cf3dd41

                              SHA512

                              0abdc5f78ade2f56b0f1954adc0479b5dcc88d401bfac95754e7dd80adefe7375a426fd89f81b657ebe9c113092524dcbd1e80c39a4bec51ccd93bc0bc3a5aff

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

                              MD5

                              939460925953ce88e1086341b8a11bda

                              SHA1

                              06249b891050a9fac128ccfee943aeb5bede1c7b

                              SHA256

                              d4da3c5ff04a3b677eb77b1bfedc14e29ebd0d01c476d44a0b1a2366447ab016

                              SHA512

                              a8dc3eb58a4a550cc2551463a3d813396caf3f2b65f5b13c8e339a4a32652895ee15c23eb5ba833eca4e7c22331a622657cf5bd64098f0c54e43b4e92fe65f30

                            • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3F26ED5DE6B4E859CCCA6035ECB8D9CB

                              MD5

                              67e2d7a667ae518acf6257a553f0ed81

                              SHA1

                              c9ef014167bdbb1a0debfcc38aa5aabffe7a9b0f

                              SHA256

                              fa4c82c6d8476a9825ed713615a48cf4d42eacdd77e39bfbd1723b079507201c

                              SHA512

                              21da1ad1caaac3559600fcb56b54581c775bba289840a3fb6e238ee9034263ba2b97770f4596c7d36923712ee90a37c484d1f8795717a93687c1805ab33798df

                            • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\204C1AA6F6114E6A513754A2AB5760FA_0673414C08DE7F919AE3F6C4CC65AEEE

                              MD5

                              defc74807672ce3332b7784eacdf3860

                              SHA1

                              c66516c7609522d3e8522200abb112946b7f48d3

                              SHA256

                              203ca93f68f2b9894a2b9e4dac9a1e70ecb0e007245e986e09757503224bd162

                              SHA512

                              3f2b9534cdf80e972de86b304998ecbba2540a260cd404d99a522a41833486674224fd180188da90331ebf4fee025cb2a8a28a81442cf13f5679a989ae9665bb

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

                              MD5

                              b0d1a06342255cdc3a62cebd24f94192

                              SHA1

                              d5783554a8d7a930b4735d58fd7d59b4fafcb5c5

                              SHA256

                              e23e5b200eb63493697199c7514b0291128b86016285f717705ab6d92a1d1340

                              SHA512

                              34ae6ebf4dfba715a6aeecfeb4b933435f847010c04df7ad52cf65133305eeae241853c85d08cc47e23f589d8ed3bf131d367870522c4ac3ad3f93c4283ae637

                            • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\DRMDU4BX\PEPFYJ2N.htm

                              MD5

                              b1cd7c031debba3a5c77b39b6791c1a7

                              SHA1

                              e5d91e14e9c685b06f00e550d9e189deb2075f76

                              SHA256

                              57ba053f075e0b80f747f3102ed985687c16a8754d109e7c4d33633269a36aaa

                              SHA512

                              d2bbefdc1effb52a38964c4cec5990a5a226248eca36f99e446c0c5704436f666bf1cb514e73b8991411d497d3325ecc646cbd5065c364e92ab6b9c5f1ad4a72

                            • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\ZIIA2USJ\VX41F6X9.htm

                              MD5

                              8615e70875c2cc0b9db16027b9adf11d

                              SHA1

                              4ed62cf405311c0ff562a3c59334a15ddc4f1bf9

                              SHA256

                              da96949ba6b0567343f144486505c8c8fa1d892fd88c9cbc3ef3d751a570724d

                              SHA512

                              cd9dfc88dc2af9438b7d6b618d1b62029b3bdf739fc4daa5b37397afd12c4528561b3bf2fc3f3f2adf3fd1f582d5524332441fd30248fcd078e41aa91e17cb73

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

                              MD5

                              e70ceaf1fc7771d3d791aedc0c2068a7

                              SHA1

                              97912679527c910bdf4c97265656f4c2527245db

                              SHA256

                              0e7b9aae7306cdb8cca2a7fa6552fd6cd03f3e2ab2e2d4ae51dfe325ff2016e5

                              SHA512

                              6a4c8a424e87f4a622aa20e4fd37060919cf686c32c0432eea026c12af372ffc6714c6baff46d0590a78fddf62ea7ca3eac3240846e1781d090d3867cfc2cd58

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

                              MD5

                              e70ceaf1fc7771d3d791aedc0c2068a7

                              SHA1

                              97912679527c910bdf4c97265656f4c2527245db

                              SHA256

                              0e7b9aae7306cdb8cca2a7fa6552fd6cd03f3e2ab2e2d4ae51dfe325ff2016e5

                              SHA512

                              6a4c8a424e87f4a622aa20e4fd37060919cf686c32c0432eea026c12af372ffc6714c6baff46d0590a78fddf62ea7ca3eac3240846e1781d090d3867cfc2cd58

                            • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exe

                              MD5

                              e70ceaf1fc7771d3d791aedc0c2068a7

                              SHA1

                              97912679527c910bdf4c97265656f4c2527245db

                              SHA256

                              0e7b9aae7306cdb8cca2a7fa6552fd6cd03f3e2ab2e2d4ae51dfe325ff2016e5

                              SHA512

                              6a4c8a424e87f4a622aa20e4fd37060919cf686c32c0432eea026c12af372ffc6714c6baff46d0590a78fddf62ea7ca3eac3240846e1781d090d3867cfc2cd58

                            • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exe

                              MD5

                              e70ceaf1fc7771d3d791aedc0c2068a7

                              SHA1

                              97912679527c910bdf4c97265656f4c2527245db

                              SHA256

                              0e7b9aae7306cdb8cca2a7fa6552fd6cd03f3e2ab2e2d4ae51dfe325ff2016e5

                              SHA512

                              6a4c8a424e87f4a622aa20e4fd37060919cf686c32c0432eea026c12af372ffc6714c6baff46d0590a78fddf62ea7ca3eac3240846e1781d090d3867cfc2cd58

                            • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exe

                              MD5

                              e70ceaf1fc7771d3d791aedc0c2068a7

                              SHA1

                              97912679527c910bdf4c97265656f4c2527245db

                              SHA256

                              0e7b9aae7306cdb8cca2a7fa6552fd6cd03f3e2ab2e2d4ae51dfe325ff2016e5

                              SHA512

                              6a4c8a424e87f4a622aa20e4fd37060919cf686c32c0432eea026c12af372ffc6714c6baff46d0590a78fddf62ea7ca3eac3240846e1781d090d3867cfc2cd58

                            • C:\Users\Admin\AppData\Roaming\vuegjsf

                              MD5

                              3f180ec284fad029c3be0801537f7ca4

                              SHA1

                              95595bb4ed18e2b00b9328b98066b9b5c47c9276

                              SHA256

                              c00cc2fd6fe678514c0a5de3fcbf5dcb35400a70c08a5cd9082432e437809a6c

                              SHA512

                              25dbd0ca473056c8ebb0a666b20b5dc7b2d5379cfbd584cfaf108aa12492e2ebfe24bf0917ca2f7787b66e837dc075dea9e6fb556e2c8fcebb7057c75a9f2380

                            • C:\Users\Admin\AppData\Roaming\vuegjsf

                              MD5

                              3f180ec284fad029c3be0801537f7ca4

                              SHA1

                              95595bb4ed18e2b00b9328b98066b9b5c47c9276

                              SHA256

                              c00cc2fd6fe678514c0a5de3fcbf5dcb35400a70c08a5cd9082432e437809a6c

                              SHA512

                              25dbd0ca473056c8ebb0a666b20b5dc7b2d5379cfbd584cfaf108aa12492e2ebfe24bf0917ca2f7787b66e837dc075dea9e6fb556e2c8fcebb7057c75a9f2380

                            • memory/188-160-0x0000000000000000-mapping.dmp

                            • memory/196-159-0x0000000000000000-mapping.dmp

                            • memory/644-164-0x0000000000000000-mapping.dmp

                            • memory/1052-163-0x0000000000000000-mapping.dmp

                            • memory/1104-162-0x0000000000000000-mapping.dmp

                            • memory/1192-161-0x0000000000000000-mapping.dmp

                            • memory/1484-118-0x0000000000000000-mapping.dmp

                            • memory/1588-148-0x0000000000000000-mapping.dmp

                            • memory/1800-139-0x0000000000000000-mapping.dmp

                            • memory/1800-141-0x0000000003190000-0x0000000003199000-memory.dmp

                              Filesize

                              36KB

                            • memory/1800-140-0x00000000031A0000-0x00000000031A4000-memory.dmp

                              Filesize

                              16KB

                            • memory/2096-131-0x00000000005D0000-0x00000000005DB000-memory.dmp

                              Filesize

                              44KB

                            • memory/2096-126-0x00000000005E0000-0x00000000005E7000-memory.dmp

                              Filesize

                              28KB

                            • memory/2096-125-0x0000000000000000-mapping.dmp

                            • memory/2132-123-0x0000000000980000-0x0000000000987000-memory.dmp

                              Filesize

                              28KB

                            • memory/2132-124-0x0000000000970000-0x000000000097C000-memory.dmp

                              Filesize

                              48KB

                            • memory/2132-122-0x0000000000000000-mapping.dmp

                            • memory/2228-116-0x0000000002100000-0x000000000210A000-memory.dmp

                              Filesize

                              40KB

                            • memory/2328-114-0x0000000000400000-0x0000000000409000-memory.dmp

                              Filesize

                              36KB

                            • memory/2328-115-0x0000000000402FAB-mapping.dmp

                            • memory/2360-135-0x0000000003100000-0x0000000003109000-memory.dmp

                              Filesize

                              36KB

                            • memory/2360-134-0x0000000003110000-0x0000000003115000-memory.dmp

                              Filesize

                              20KB

                            • memory/2360-133-0x0000000000000000-mapping.dmp

                            • memory/2428-145-0x0000000000000000-mapping.dmp

                            • memory/2428-147-0x0000000003190000-0x0000000003199000-memory.dmp

                              Filesize

                              36KB

                            • memory/2428-146-0x00000000031A0000-0x00000000031A5000-memory.dmp

                              Filesize

                              20KB

                            • memory/2500-142-0x0000000000000000-mapping.dmp

                            • memory/2500-144-0x00000000003D0000-0x00000000003D9000-memory.dmp

                              Filesize

                              36KB

                            • memory/2500-143-0x00000000003E0000-0x00000000003E5000-memory.dmp

                              Filesize

                              20KB

                            • memory/2544-166-0x0000000000000000-mapping.dmp

                            • memory/2884-137-0x0000000000FE0000-0x0000000000FE6000-memory.dmp

                              Filesize

                              24KB

                            • memory/2884-138-0x0000000000FD0000-0x0000000000FDC000-memory.dmp

                              Filesize

                              48KB

                            • memory/2884-136-0x0000000000000000-mapping.dmp

                            • memory/3024-117-0x0000000000C50000-0x0000000000C66000-memory.dmp

                              Filesize

                              88KB

                            • memory/3156-127-0x0000000000720000-0x0000000000794000-memory.dmp

                              Filesize

                              464KB

                            • memory/3156-121-0x0000000000000000-mapping.dmp

                            • memory/3156-132-0x00000000006B0000-0x000000000071B000-memory.dmp

                              Filesize

                              428KB

                            • memory/3552-167-0x0000000000000000-mapping.dmp

                            • memory/3704-128-0x0000000000000000-mapping.dmp

                            • memory/3704-130-0x0000000000D80000-0x0000000000D8F000-memory.dmp

                              Filesize

                              60KB

                            • memory/3704-129-0x0000000000D90000-0x0000000000D99000-memory.dmp

                              Filesize

                              36KB