Analysis

  • max time kernel
    146s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/02/2023, 12:11

General

  • Target

    BlueStacksMicroInstaller_5.10.110.1002_native.exe

  • Size

    797KB

  • MD5

    0eae90ce111984e1383dbcab75115da8

  • SHA1

    109f68927cbdd34c1d68e281d6f16faee83c71dc

  • SHA256

    73c05ae808cf58122419e61258a8f3deeb1d0609f84b58438cf89f8c1ba45e14

  • SHA512

    af13b646ced539dd169f7ad0a094a2afa2a9670bb033cf8b894c8f6f3a7fc62a10d954bf2462abe6b81900c30425ec5ed627c70ec09273d5b7353d1b065bb7ab

  • SSDEEP

    12288:zivtCXQd0RYK1qv6qQdeRPHKmL3PYFrmlbBk4/XEPhIdcXXjdJ:zivtCXF1qv6qQOqqPYWtk4/Xw+dcD3

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BlueStacksMicroInstaller_5.10.110.1002_native.exe
    "C:\Users\Admin\AppData\Local\Temp\BlueStacksMicroInstaller_5.10.110.1002_native.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1208
    • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\BlueStacksInstaller.exe
      "C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\BlueStacksInstaller.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3448
      • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\HD-CheckCpu.exe
        "C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\HD-CheckCpu.exe" --cmd checkHypervEnabled
        3⤵
        • Executes dropped EXE
        PID:2580
      • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\HD-CheckCpu.exe
        "C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\HD-CheckCpu.exe" --cmd checkSSE4
        3⤵
        • Executes dropped EXE
        PID:4260

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\Assets\backicon.png

    Filesize

    15KB

    MD5

    7ff5dc8270b5fa7ef6c4a1420bd67a7f

    SHA1

    b224300372feaa97d882ca2552b227c0f2ef4e3e

    SHA256

    fa64884054171515e97b78aaa1aad1ec5baa9d1daf9c682e0b3fb4a41a9cb1c1

    SHA512

    f0d5a842a01b99f189f3d46ab59d2c388a974951b042b25bbce54a15f5a3f386984d19cfca22ba1440eebd79260066a37dfeff6cb0d1332fca136add14488eef

  • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\Assets\checked_gray.png

    Filesize

    538B

    MD5

    ce144d2aab3bf213af693d4e18f87a59

    SHA1

    df59dc3dbba88bdc5ffc25f2e5e7b73ac3de5afa

    SHA256

    d8e502fab00b0c6f06ba6abede6922ab3b423fe6f2d2f56941dabc887b229ad3

    SHA512

    0f930edd485a0d49ef157f6cc8856609c087c91b77845adeb5cc8c8a80ebc7ec5416df351ffa1af780caad884dbb49dcc778b0b30de6fb7c85ffef22d7220ebe

  • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\Assets\close_red.png

    Filesize

    15KB

    MD5

    93216b2f9d66d423b3e1311c0573332d

    SHA1

    5efaebec5f20f91f164f80d1e36f98c9ddaff805

    SHA256

    d0b6d143642d356b40c47459a996131a344cade6bb86158f1b74693426b09bfb

    SHA512

    922a7292de627c5e637818556d25d9842a88e89f2b198885835925679500dfd44a1e25ce79e521e63c4f84a6b0bd6bf98e46143ad8cee80ecdbaf3d3bc0f3a32

  • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\Assets\custom.png

    Filesize

    17KB

    MD5

    03b17f0b1c067826b0fcc6746cced2cb

    SHA1

    e07e4434e10df4d6c81b55fceb6eca2281362477

    SHA256

    fbece8bb5f4dfa55dcfbf41151b10608af807b9477e99acf0940954a11e68f7b

    SHA512

    67c78ec01e20e9c8d9cdbba665bb2fd2bb150356f30b88d3d400bbdb0ae92010f5d7bcb683dcf6f895722a9151d8e669d8bef913eb6e728ba56bb02f264573b2

  • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\Assets\installer_bg.jpg

    Filesize

    42KB

    MD5

    162c23f5962381efba79be503b41089c

    SHA1

    fc5a95e6eb2bb015fe27457873528c24b3bc459d

    SHA256

    04d70d0968675290294df78800ed48fe4a681a72803405fbdc541b927b445457

    SHA512

    9bd6e634d6cb362ab40f2646ca59a865f05e6049ac55b9d03b3df1f8e853715119438771196a351ca98c6cb61a212bbc0bedb7bf2d306563f6198353a7680c54

  • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\Assets\installer_logo.png

    Filesize

    7KB

    MD5

    d6f746b61d5c91d6688faab54ecc74c3

    SHA1

    9581cafbc93d6189c7e0633bd43dfd017510f731

    SHA256

    ed7e205b0ccdd454d4fa47c48834ad36a6e9fb51f4042a2dcd39a7fe01244d95

    SHA512

    0139711388976628ebd46a2f1dc7e0c38184d3b4ab63a8f2b6c8cd9e6032cddcd2dafb8ce4ab3ba8008beba9d6c3e444577cd7953bb48e39635e5c9666fdf478

  • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\Assets\installer_minimize.png

    Filesize

    113B

    MD5

    38b539a1e4229738e5c196eedb4eb225

    SHA1

    f027b08dce77c47aaed75a28a2fce218ff8c936c

    SHA256

    a064f417e3c2b8f3121a14bbded268b2cdf635706880b7006f931de31476bbc2

    SHA512

    2ce433689a94fae454ef65e0e9ec33657b89718bbb5a038bf32950f6d68722803922f3a427278bad432395a1716523e589463fcce4279dc2a895fd77434821cc

  • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\Assets\loader.png

    Filesize

    279B

    MD5

    03903fd42ed2ee3cb014f0f3b410bcb4

    SHA1

    762a95240607fe8a304867a46bc2d677f494f5c2

    SHA256

    076263cc65f9824f4f82eb6beaa594d1df90218a2ee21664cf209181557e04b1

    SHA512

    8b0e717268590e5287c07598a06d89220c5e9a33cd1c29c55f8720321f4b3efc869d20c61fcc892e13188d77f0fdc4c73a2ee6dece174bf876fcc3a6c5683857

  • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\Assets\setpath.png

    Filesize

    15KB

    MD5

    b2e7f40179744c74fded932e829cb12a

    SHA1

    a0059ab8158a497d2cf583a292b13f87326ec3f0

    SHA256

    5bbb2f41f9f3a805986c3c88a639bcc22d90067d4b8de9f1e21e3cf9e5c1766b

    SHA512

    b95b7ebdb4a74639276eaa5c055fd8d9431e2f58a5f7c57303f7cf22e8b599f6f2a7852074cf71b19b49eb31cc9bf2509aedf41d608981d116e49a00030c797c

  • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\Assets\unchecked_gray.png

    Filesize

    192B

    MD5

    e50df2a0768f7fc4c3fe8d784564fea3

    SHA1

    d1fc4db50fe8e534019eb7ce70a61fd4c954621a

    SHA256

    671f26795b12008fbea1943143f660095f3dca5d925f67d765e2352fd7ee2396

    SHA512

    c87a8308a73b17cbdd179737631fb1ba7fdaeb65e82263f6617727519b70a81266bb695867b9e599c1306ee2cf0de525452f77ce367ca89bf870ea3ae7189998

  • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\BlueStacksInstaller.exe

    Filesize

    559KB

    MD5

    3d3cab7153b2575a05555b54d737ac3e

    SHA1

    a1d383c960ad7ae90a13c74593615c8541a2a3b3

    SHA256

    b95bd577b5e8a5bd4716f97c490a90923a512fa3e146c30911177b408781428f

    SHA512

    1d75883f5f44e443651880043c2e7c9310c35e9966d90dbcadb83c2199fab23b55bea7c4d9a5b17ced9a55ef4466ef266b762049c57b1b965d4fba37faa3d393

  • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\BlueStacksInstaller.exe

    Filesize

    559KB

    MD5

    3d3cab7153b2575a05555b54d737ac3e

    SHA1

    a1d383c960ad7ae90a13c74593615c8541a2a3b3

    SHA256

    b95bd577b5e8a5bd4716f97c490a90923a512fa3e146c30911177b408781428f

    SHA512

    1d75883f5f44e443651880043c2e7c9310c35e9966d90dbcadb83c2199fab23b55bea7c4d9a5b17ced9a55ef4466ef266b762049c57b1b965d4fba37faa3d393

  • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\BlueStacksInstaller.exe.config

    Filesize

    324B

    MD5

    1b456d88546e29f4f007cd0bf1025703

    SHA1

    e5c444fcfe5baf2ef71c1813afc3f2c1100cab86

    SHA256

    d6d316584b63bb0d670a42f88b8f84e0de0db4275f1a342084dc383ebeb278eb

    SHA512

    c545e416c841b8786e4589fc9ca2b732b16cdd759813ec03f558332f2436f165ec1ad2fbc65012b5709fa19ff1e8396639c17bfad150cabeb51328a39ea556e6

  • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\HD-CheckCpu.exe

    Filesize

    211KB

    MD5

    764ac83167adcd8d2273f6bff7d769b2

    SHA1

    bf6a46b8c03d7efb16fdd6e4ce0a5e4362f41957

    SHA256

    e81e0444ba2deb4056872d1c4f9b01971bb4fb376c6434c942718da7c39190bf

    SHA512

    a3a484aaf5cfdff1c198c37f3055409dc066646db3d61e74bfef2b4ce212d95fd43d3e3b239e080ba9fab62eae23cd4b54b6b466fad3192845b43d4212ccd667

  • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\HD-CheckCpu.exe

    Filesize

    211KB

    MD5

    764ac83167adcd8d2273f6bff7d769b2

    SHA1

    bf6a46b8c03d7efb16fdd6e4ce0a5e4362f41957

    SHA256

    e81e0444ba2deb4056872d1c4f9b01971bb4fb376c6434c942718da7c39190bf

    SHA512

    a3a484aaf5cfdff1c198c37f3055409dc066646db3d61e74bfef2b4ce212d95fd43d3e3b239e080ba9fab62eae23cd4b54b6b466fad3192845b43d4212ccd667

  • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\HD-CheckCpu.exe

    Filesize

    211KB

    MD5

    764ac83167adcd8d2273f6bff7d769b2

    SHA1

    bf6a46b8c03d7efb16fdd6e4ce0a5e4362f41957

    SHA256

    e81e0444ba2deb4056872d1c4f9b01971bb4fb376c6434c942718da7c39190bf

    SHA512

    a3a484aaf5cfdff1c198c37f3055409dc066646db3d61e74bfef2b4ce212d95fd43d3e3b239e080ba9fab62eae23cd4b54b6b466fad3192845b43d4212ccd667

  • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\JSON.dll

    Filesize

    411KB

    MD5

    f5fd966e29f5c359f78cb61a571d1be4

    SHA1

    a55e7ed593b4bc7a77586da0f1223cfd9d51a233

    SHA256

    d2c8d26f95f55431e632c8581154db7c19547b656380e051194a9d2583dd2156

    SHA512

    d99e6fe250bb106257f86135938635f6e7ad689b2c11a96bb274f4c4c5e9a85cfacba40122dbc953f77b5d33d886c6af30bff821f10945e15b21a24b66f6c8be

  • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\Locales\i18n.en-US.txt

    Filesize

    17KB

    MD5

    d8316371294c2e3fd9cded40261e0e17

    SHA1

    39a33c431d2a5085fa421f7183cd705d8282d010

    SHA256

    2b8f16a7ba900b7d5602697c2a028cf4a55f451394ef36ad1b83fe94aa5f534d

    SHA512

    98e55fdaec682e1ac92386115862a17df2ba14f6991125b548bcd1699ecf88043ba26ad28772434a9e25e50f46ed24ffd03414ce4f01be630b2daf15e4ad55e8

  • C:\Users\Admin\AppData\Local\Temp\7zS8B4222B6\ThemeFile

    Filesize

    80KB

    MD5

    c3e6bab4f92ee40b9453821136878993

    SHA1

    94493a6b3dfb3135e5775b7d3be227659856fbc4

    SHA256

    de1a2e6b560e036da5ea6b042e29e81a5bfcf67dde89670c332fc5199e811ba6

    SHA512

    a64b6b06b3a0f3591892b60e59699682700f4018b898efe55d6bd5fb417965a55027671c58092d1eb7e21c2dbac42bc68dfb8c70468d98bed45a8cff0e945895

  • memory/3448-148-0x000000001DBE0000-0x000000001DBEE000-memory.dmp

    Filesize

    56KB

  • memory/3448-147-0x000000001DC10000-0x000000001DC48000-memory.dmp

    Filesize

    224KB

  • memory/3448-145-0x000000001DD30000-0x000000001E258000-memory.dmp

    Filesize

    5.2MB

  • memory/3448-139-0x00000000022F0000-0x0000000002358000-memory.dmp

    Filesize

    416KB

  • memory/3448-137-0x00007FF852980000-0x00007FF853441000-memory.dmp

    Filesize

    10.8MB

  • memory/3448-159-0x0000000022F80000-0x0000000022F88000-memory.dmp

    Filesize

    32KB

  • memory/3448-136-0x0000000000070000-0x0000000000100000-memory.dmp

    Filesize

    576KB

  • memory/3448-161-0x00007FF852980000-0x00007FF853441000-memory.dmp

    Filesize

    10.8MB