Analysis

  • max time kernel
    31s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    09/03/2023, 14:59

General

  • Target

    bf39239f0b1526c68de99294e9c8ef5f.exe

  • Size

    601KB

  • MD5

    bf39239f0b1526c68de99294e9c8ef5f

  • SHA1

    e56a2e35f28f6b599cad84160693ea9e8a77ee47

  • SHA256

    25e4a522edaed7b5a38ef23b6c893caa0ad4343ddf61f69f720325522f5a69e4

  • SHA512

    a5027d34656d2c222179427418f14c18ada016c1e4734317bc93482e576f3d3bce2f310f087eb9792f1769eaa449c8523cb7a18cd59a3bf315b744c85000d44e

  • SSDEEP

    12288:DHREStiZc6sOPep0zh5Z6SkX/tvH8DWeWS4pp9zFdP2+MlC/m+ADgfcTQt/N6zRH:DHRESwZc6s70

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Drops startup file 1 IoCs
  • Loads dropped DLL 8 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • 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.

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf39239f0b1526c68de99294e9c8ef5f.exe
    "C:\Users\Admin\AppData\Local\Temp\bf39239f0b1526c68de99294e9c8ef5f.exe"
    1⤵
    • Drops startup file
    • Loads dropped DLL
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    PID:2004

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

          Filesize

          61KB

          MD5

          e71c8443ae0bc2e282c73faead0a6dd3

          SHA1

          0c110c1b01e68edfacaeae64781a37b1995fa94b

          SHA256

          95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72

          SHA512

          b38458c7fa2825afb72794f374827403d5946b1132e136a0ce075dfd351277cf7d957c88dc8a1e4adc3bcae1fa8010dae3831e268e910d517691de24326391a6

        • C:\Users\Admin\AppData\Local\Temp\Ionic.Zip.dll

          Filesize

          451KB

          MD5

          6ded8fcbf5f1d9e422b327ca51625e24

          SHA1

          8a1140cebc39f6994eef7e8de4627fb7b72a2dd9

          SHA256

          3b3e541682e48f3fd2872f85a06278da2f3e7877ee956da89b90d732a1eaa0bd

          SHA512

          bda3a65133b7b1e2765c7d07c7da5103292b3c4c2f0673640428b3e7e8637b11539f06c330ab5d0ba6e2274bd2dcd2c50312be6579e75c4008ff5ae7dae34ce4

        • C:\Users\Admin\AppData\Local\Temp\Tar2860.tmp

          Filesize

          161KB

          MD5

          be2bec6e8c5653136d3e72fe53c98aa3

          SHA1

          a8182d6db17c14671c3d5766c72e58d87c0810de

          SHA256

          1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd

          SHA512

          0d1424ccdf0d53faf3f4e13d534e12f22388648aa4c23edbc503801e3c96b7f73c7999b760b5bef4b5e9dd923dffe21a21889b1ce836dd428420bf0f4f5327ff

        • \Users\Admin\AppData\Local\Temp\Ionic.Zip.dll

          Filesize

          451KB

          MD5

          6ded8fcbf5f1d9e422b327ca51625e24

          SHA1

          8a1140cebc39f6994eef7e8de4627fb7b72a2dd9

          SHA256

          3b3e541682e48f3fd2872f85a06278da2f3e7877ee956da89b90d732a1eaa0bd

          SHA512

          bda3a65133b7b1e2765c7d07c7da5103292b3c4c2f0673640428b3e7e8637b11539f06c330ab5d0ba6e2274bd2dcd2c50312be6579e75c4008ff5ae7dae34ce4

        • \Users\Admin\AppData\Local\Temp\Ionic.Zip.dll

          Filesize

          451KB

          MD5

          6ded8fcbf5f1d9e422b327ca51625e24

          SHA1

          8a1140cebc39f6994eef7e8de4627fb7b72a2dd9

          SHA256

          3b3e541682e48f3fd2872f85a06278da2f3e7877ee956da89b90d732a1eaa0bd

          SHA512

          bda3a65133b7b1e2765c7d07c7da5103292b3c4c2f0673640428b3e7e8637b11539f06c330ab5d0ba6e2274bd2dcd2c50312be6579e75c4008ff5ae7dae34ce4

        • \Users\Admin\AppData\Local\Temp\Ionic.Zip.dll

          Filesize

          451KB

          MD5

          6ded8fcbf5f1d9e422b327ca51625e24

          SHA1

          8a1140cebc39f6994eef7e8de4627fb7b72a2dd9

          SHA256

          3b3e541682e48f3fd2872f85a06278da2f3e7877ee956da89b90d732a1eaa0bd

          SHA512

          bda3a65133b7b1e2765c7d07c7da5103292b3c4c2f0673640428b3e7e8637b11539f06c330ab5d0ba6e2274bd2dcd2c50312be6579e75c4008ff5ae7dae34ce4

        • \Users\Admin\AppData\Local\Temp\Ionic.Zip.dll

          Filesize

          451KB

          MD5

          6ded8fcbf5f1d9e422b327ca51625e24

          SHA1

          8a1140cebc39f6994eef7e8de4627fb7b72a2dd9

          SHA256

          3b3e541682e48f3fd2872f85a06278da2f3e7877ee956da89b90d732a1eaa0bd

          SHA512

          bda3a65133b7b1e2765c7d07c7da5103292b3c4c2f0673640428b3e7e8637b11539f06c330ab5d0ba6e2274bd2dcd2c50312be6579e75c4008ff5ae7dae34ce4

        • \Users\Admin\AppData\Local\Temp\System.Data.SQLite.dll

          Filesize

          384KB

          MD5

          55c797383dbbbfe93c0fe3215b99b8ec

          SHA1

          1b089157f3d8ae64c62ea15cdad3d82eafa1df4b

          SHA256

          5fac5a9e9b8bbdad6cf661dbf3187e395914cd7139e34b725906efbb60122c0d

          SHA512

          648a7da0bcda6ccd31b4d6cdc1c90c3bc3c11023fcceb569f1972b8f6ab8f92452d1a80205038edcf409669265b6756ba0da6b1a734bd1ae4b6c527bbebb8757

        • \Users\Admin\AppData\Local\Temp\System.Data.SQLite.dll

          Filesize

          384KB

          MD5

          55c797383dbbbfe93c0fe3215b99b8ec

          SHA1

          1b089157f3d8ae64c62ea15cdad3d82eafa1df4b

          SHA256

          5fac5a9e9b8bbdad6cf661dbf3187e395914cd7139e34b725906efbb60122c0d

          SHA512

          648a7da0bcda6ccd31b4d6cdc1c90c3bc3c11023fcceb569f1972b8f6ab8f92452d1a80205038edcf409669265b6756ba0da6b1a734bd1ae4b6c527bbebb8757

        • \Users\Admin\AppData\Local\Temp\x86\SQLite.Interop.dll

          Filesize

          1.3MB

          MD5

          8be215abf1f36aa3d23555a671e7e3be

          SHA1

          547d59580b7843f90aaca238012a8a0c886330e6

          SHA256

          83f332ea9535814f18be4ee768682ecc7720794aedc30659eb165e46257a7cae

          SHA512

          38cf4aea676dacd2e719833ca504ac8751a5fe700214ff4ac2b77c0542928a6a1aa3780ed7418387affed67ab6be97f1439633249af22d62e075c1cdfdf5449b

        • \Users\Admin\AppData\Roaming\Chrome Updater\Chrome.exe

          Filesize

          601KB

          MD5

          bf39239f0b1526c68de99294e9c8ef5f

          SHA1

          e56a2e35f28f6b599cad84160693ea9e8a77ee47

          SHA256

          25e4a522edaed7b5a38ef23b6c893caa0ad4343ddf61f69f720325522f5a69e4

          SHA512

          a5027d34656d2c222179427418f14c18ada016c1e4734317bc93482e576f3d3bce2f310f087eb9792f1769eaa449c8523cb7a18cd59a3bf315b744c85000d44e

        • memory/2004-80-0x00000000006F0000-0x0000000000710000-memory.dmp

          Filesize

          128KB

        • memory/2004-75-0x000000000A2A0000-0x000000000A302000-memory.dmp

          Filesize

          392KB

        • memory/2004-131-0x000000000AB20000-0x000000000AB98000-memory.dmp

          Filesize

          480KB

        • memory/2004-54-0x0000000000BD0000-0x0000000000C6E000-memory.dmp

          Filesize

          632KB

        • memory/2004-56-0x0000000000770000-0x00000000007B0000-memory.dmp

          Filesize

          256KB

        • memory/2004-55-0x00000000001E0000-0x00000000001E6000-memory.dmp

          Filesize

          24KB

        • memory/2004-152-0x0000000000770000-0x00000000007B0000-memory.dmp

          Filesize

          256KB