Analysis

  • max time kernel
    144s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-01-2024 07:43

General

  • Target

    71a9d91cfbd2cfa97dba3bcf47af4a4f.exe

  • Size

    526KB

  • MD5

    71a9d91cfbd2cfa97dba3bcf47af4a4f

  • SHA1

    e9351cf7f8c362765edfa34cb1b70119b08dbf19

  • SHA256

    3f03a1ba7c95be04ee555c6277ba4f70609f6f75e81c4ed7e0e630bc2e33c081

  • SHA512

    d89dc144fdd7f37cfb4c051505589b7845d94e7cd21c9abc19accc2126d7fa4a03c6c96358f689d033e4dd0ad729116dc5675582fb0c024b122e44b56d693cde

  • SSDEEP

    6144:PIn2LFH8IAwJ9BiS6eG6dfJ39YB1rDFK2qwfX0miJCHnt5f2YuMPIA:gn2L0+i1enfPEUfiFistQi

Malware Config

Extracted

Family

cryptbot

C2

knuxua32.top

mornui03.top

Attributes
  • payload_url

    http://sarpuk04.top/download.php?file=lv.exe

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • CryptBot payload 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 21 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious use of FindShellTrayWindow 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\71a9d91cfbd2cfa97dba3bcf47af4a4f.exe
    "C:\Users\Admin\AppData\Local\Temp\71a9d91cfbd2cfa97dba3bcf47af4a4f.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of FindShellTrayWindow
    PID:5004
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 604
      2⤵
      • Program crash
      PID:4876
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 688
      2⤵
      • Program crash
      PID:3824
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 768
      2⤵
      • Program crash
      PID:1672
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 876
      2⤵
      • Program crash
      PID:3400
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 876
      2⤵
      • Program crash
      PID:316
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 876
      2⤵
      • Program crash
      PID:4964
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 1144
      2⤵
      • Program crash
      PID:3900
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 1168
      2⤵
      • Program crash
      PID:3816
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 1040
      2⤵
      • Program crash
      PID:4512
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 692
      2⤵
      • Program crash
      PID:4004
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 1304
      2⤵
      • Program crash
      PID:2504
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 796
      2⤵
      • Program crash
      PID:3388
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 756
      2⤵
      • Program crash
      PID:2380
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 972
      2⤵
      • Program crash
      PID:3732
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 980
      2⤵
      • Program crash
      PID:2904
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 1336
      2⤵
      • Program crash
      PID:4700
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 1336
      2⤵
      • Program crash
      PID:224
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 984
      2⤵
      • Program crash
      PID:4896
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 808
      2⤵
      • Program crash
      PID:4648
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 1408
      2⤵
      • Program crash
      PID:2716
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 784
      2⤵
      • Program crash
      PID:4368
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5004 -ip 5004
    1⤵
      PID:688
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 5004 -ip 5004
      1⤵
        PID:4372
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 5004 -ip 5004
        1⤵
          PID:2904
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 5004 -ip 5004
          1⤵
            PID:4240
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 5004 -ip 5004
            1⤵
              PID:4980
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 5004 -ip 5004
              1⤵
                PID:772
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 596 -p 5004 -ip 5004
                1⤵
                  PID:3036
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 608 -p 5004 -ip 5004
                  1⤵
                    PID:1992
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 620 -p 5004 -ip 5004
                    1⤵
                      PID:2772
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 5004 -ip 5004
                      1⤵
                        PID:1212
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 624 -p 5004 -ip 5004
                        1⤵
                          PID:2284
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 5004 -ip 5004
                          1⤵
                            PID:4160
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 604 -p 5004 -ip 5004
                            1⤵
                              PID:2760
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 620 -p 5004 -ip 5004
                              1⤵
                                PID:2524
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 5004 -ip 5004
                                1⤵
                                  PID:1252
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 652 -p 5004 -ip 5004
                                  1⤵
                                    PID:4836
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 608 -p 5004 -ip 5004
                                    1⤵
                                      PID:1076
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 616 -p 5004 -ip 5004
                                      1⤵
                                        PID:4984
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 5004 -ip 5004
                                        1⤵
                                          PID:1396
                                        • C:\Windows\SysWOW64\WerFault.exe
                                          C:\Windows\SysWOW64\WerFault.exe -pss -s 624 -p 5004 -ip 5004
                                          1⤵
                                            PID:2072
                                          • C:\Windows\SysWOW64\WerFault.exe
                                            C:\Windows\SysWOW64\WerFault.exe -pss -s 644 -p 5004 -ip 5004
                                            1⤵
                                              PID:180

                                            Network

                                            MITRE ATT&CK Enterprise v15

                                            Replay Monitor

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                                            Downloads

                                            • C:\Users\Admin\AppData\Local\Temp\cU7n4Cv5\UbWkfjJo.zip

                                              Filesize

                                              42KB

                                              MD5

                                              5941adf247ea051fb93b594e2e953948

                                              SHA1

                                              72ef3fac98b95427692fe9b7bcf7d9d2336172f0

                                              SHA256

                                              996b1bbda43ee7050226a895befaf23745536995a7bcf1fd7efad9580563f385

                                              SHA512

                                              104e6f6efc0e31704f6f081b1ae797f922c75b33891c5772cf7ac8959ab295cf3a02bf7386335299be8c5a634a08c89b9a6d0befc3eca74b61da5db6a18d78a7

                                            • C:\Users\Admin\AppData\Local\Temp\cU7n4Cv5\_Files\_Information.txt

                                              Filesize

                                              1KB

                                              MD5

                                              98ebf81d2ca411a73a9831a5aec7cb87

                                              SHA1

                                              235d30f35d554296fdf1a610f3a5f986faebe3c2

                                              SHA256

                                              d972e6976a258b16a828b60f4009fd89dae340e975ce8baa7ed2a3fb15356c7b

                                              SHA512

                                              5eb45bb2b8b01b8b554a45f5c48713d1dec7d58ff487b96c25f30143079c625a86de7fdfd7cef0e9400efe7919f088a945265100fc8d1d65b014ba89f72b899d

                                            • C:\Users\Admin\AppData\Local\Temp\cU7n4Cv5\_Files\_Information.txt

                                              Filesize

                                              4KB

                                              MD5

                                              9246cce0f801b0596efe1c8ca4c5ebbe

                                              SHA1

                                              61007a952402d05c4ab731a02fcedc9947159536

                                              SHA256

                                              3adec67e002095705b0a84634636cd6a0915945ba6ca26266ac2ed9f73dc0d9e

                                              SHA512

                                              52d561720bba3c176ee0a110e866d684a647dcb9970d96f2edf39332aaa250d7b704516841247df458d99b187344d6a77d5056ab204fde227dd73de1d1bb130d

                                            • C:\Users\Admin\AppData\Local\Temp\cU7n4Cv5\_Files\_Screen_Desktop.jpeg

                                              Filesize

                                              48KB

                                              MD5

                                              aae2bffbd650aa1cdda4950badd5c242

                                              SHA1

                                              c73497738df267e04b1884cd16190bf838629f38

                                              SHA256

                                              6c695409ef065d17e4fd61fcbc665f7dabd14878704e755d50d7ba7fb02b2b70

                                              SHA512

                                              55bbfddf2fb329ea6a7bef51f2193e8a52fd6b1e8ef9dfcdb496068549cc027fabb5b530a62c47a5c14f87116ad4d6fe356dd7fc3ec848445b3e8901d61c5225

                                            • C:\Users\Admin\AppData\Local\Temp\cU7n4Cv5\files_\system_info.txt

                                              Filesize

                                              1KB

                                              MD5

                                              06d1bafb983175a5ca6218d3ca54848d

                                              SHA1

                                              c68542fc4fc90256b5fc48756c01e94e604dc2d0

                                              SHA256

                                              408520ecebc4202bfad6f07f4f671c27b82f3a995291251df5519333dc543a18

                                              SHA512

                                              5c0a98f7b404d5fb231fb0ac8bfe018c21182a814d5dcabe40719cb2dc29e403988636f8c3580f84dc6d17c8cd27573613ec5bfb3f6caecb16ec5aecad469b4d

                                            • C:\Users\Admin\AppData\Local\Temp\cU7n4Cv5\files_\system_info.txt

                                              Filesize

                                              4KB

                                              MD5

                                              47709dc216d97810d13d74a2208336d1

                                              SHA1

                                              3bf4d51562c31cd63814ac1e20b56ac3fbd62fa1

                                              SHA256

                                              b77ed176423241558a0761bdd8ad8c8a421175101ba5a3d2cf15cb6d3317879b

                                              SHA512

                                              5ed8a4e237fe01b5010208ef78d2bb8a22fbc0f33a561d1b3987d74dc8a8f27f9c66a89193ce7dcd3ffd6798a46aa67cc33f82b2c3e40410ae881340ec2d2e2f

                                            • C:\Users\Admin\AppData\Local\Temp\cU7n4Cv5\files_\system_info.txt

                                              Filesize

                                              6KB

                                              MD5

                                              dda8a010550de3b0e37c882a44220d5a

                                              SHA1

                                              b918166afcbf1e54088b3276efa580c5d31782e1

                                              SHA256

                                              9ee00b05ec5123f360d6fca11191e8998232d2933694b7cb99df0a4d4b381c6b

                                              SHA512

                                              0006c8c645c0ed911b0b96f88b1cdf7a7ae5ad07b413e337015d04d18c6e9a1e5a94749c9715ed841af87293999ee5fc4a8678d5269cf0c51c7a09d583cdf9d3

                                            • C:\Users\Admin\AppData\Local\Temp\cU7n4Cv5\jmryL1pY1MfI.zip

                                              Filesize

                                              42KB

                                              MD5

                                              7d54b705cb10dfa1c24c929de9abfbc7

                                              SHA1

                                              7aa03b819b5f955f8e7d84171da9c07f7427a5d9

                                              SHA256

                                              0ecf4f2beead22780402f5b4743172188e8df8c84641c2db35380ec763cc3423

                                              SHA512

                                              dc8588ed8df878797386381ad8ac9ab3428f066284e937f92c00b8b5d6dfce6d8ff6ecdaab439b6f125aa19301915f9f548b760b399dfcf9affad2a8af3c3f62

                                            • memory/5004-3-0x0000000000400000-0x0000000002D13000-memory.dmp

                                              Filesize

                                              41.1MB

                                            • memory/5004-1-0x0000000002E30000-0x0000000002F30000-memory.dmp

                                              Filesize

                                              1024KB

                                            • memory/5004-207-0x0000000000400000-0x0000000002D13000-memory.dmp

                                              Filesize

                                              41.1MB

                                            • memory/5004-211-0x0000000002E30000-0x0000000002F30000-memory.dmp

                                              Filesize

                                              1024KB

                                            • memory/5004-212-0x0000000004AF0000-0x0000000004B90000-memory.dmp

                                              Filesize

                                              640KB

                                            • memory/5004-2-0x0000000004AF0000-0x0000000004B90000-memory.dmp

                                              Filesize

                                              640KB