Analysis

  • max time kernel
    155s
  • max time network
    165s
  • platform
    windows7_x64
  • resource
    win7-20230220-es
  • resource tags

    arch:x64arch:x86image:win7-20230220-eslocale:es-esos:windows7-x64systemwindows
  • submitted
    03-04-2023 21:40

General

  • Target

    windows.10.codec.pack.v2.2.0.setup.exe

  • Size

    45.5MB

  • MD5

    908ea32c938f24669728a7c026a6552b

  • SHA1

    2695b6cd468636b09c1495a86a69ce4f56203a0c

  • SHA256

    435506cbe66bebdfdf9a2a94b1e8f483fdf108ab308129a6eb8dfd56a8bc77bc

  • SHA512

    342281df3e8823dbca8231335c17d76fbc4d0ba35a97c2d777d11c9ca33b86e689ef54c86aebbbec50a6f499b7232c4d56406f0471cce666a74203bfe95e710e

  • SSDEEP

    786432:Zbe52lsoZacQr5el64WTdDUCpGnSlyXMs8AdIqCmF3kdPEcOKbBhscBpw4yTie6d:ZbpHZac09DtpI7XMvmIqoPppw4yees

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Loads dropped DLL 6 IoCs
  • 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). Likely ransomware behaviour.

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\windows.10.codec.pack.v2.2.0.setup.exe
    "C:\Users\Admin\AppData\Local\Temp\windows.10.codec.pack.v2.2.0.setup.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    PID:1272

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    61KB

    MD5

    e71c8443ae0bc2e282c73faead0a6dd3

    SHA1

    0c110c1b01e68edfacaeae64781a37b1995fa94b

    SHA256

    95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72

    SHA512

    b38458c7fa2825afb72794f374827403d5946b1132e136a0ce075dfd351277cf7d957c88dc8a1e4adc3bcae1fa8010dae3831e268e910d517691de24326391a6

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

    Filesize

    342B

    MD5

    1c6c7df2236154416f39b68d1fc09ed2

    SHA1

    624b8ea59ba194da90a686c816ae36daa44a4e3d

    SHA256

    7636aa654ab680b875ccdf1a942958465041eef45019396b35711b214bca92ca

    SHA512

    f23499f1cdf1212f1b54262d6bd847dc7ce81604068c9419b0feb62152eadca0b4087b30d1788fc31c79a5187933665df2326dbcc3598cf07b14e60bb1645580

  • C:\Users\Admin\AppData\Local\Temp\TarDC67.tmp

    Filesize

    161KB

    MD5

    be2bec6e8c5653136d3e72fe53c98aa3

    SHA1

    a8182d6db17c14671c3d5766c72e58d87c0810de

    SHA256

    1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd

    SHA512

    0d1424ccdf0d53faf3f4e13d534e12f22388648aa4c23edbc503801e3c96b7f73c7999b760b5bef4b5e9dd923dffe21a21889b1ce836dd428420bf0f4f5327ff

  • C:\Users\Admin\AppData\Local\Temp\nsj8D93.tmp\easy.ini

    Filesize

    1KB

    MD5

    43a1a5ee65d2828841781b6b403f3a64

    SHA1

    5a3636e0aae2199f56d2b57beb2c787b92dd045c

    SHA256

    4efdbf5ca7b648390c5d1cbf21ea6f67061a235dc54700b30c7aa321eeb037ce

    SHA512

    9dea293900ab699e93ab0d40fda09ef95f03af1e6272ea07561b6755fbe81a0d692d2f7ec0385b3bc7ac6a667644322cdcd3770afcf0e0c7b8966b58d82accbb

  • C:\Users\Admin\AppData\Local\Temp\nsj8D93.tmp\nsjBEA2.tmp

    Filesize

    30KB

    MD5

    1bc3c1608ac94cf3fb4575dc96610fe0

    SHA1

    02a953629b0e272d8a9bbf5dacbb03402853bc8a

    SHA256

    64f426601f824c9ec361755cb157d5f80499b8bbf4a29455bfca1fb65f2aae5c

    SHA512

    63881bcdf359f22de1a7582d943ec241ab2fe32fd68e202befd940c4e2ee86092797bc2de4514685d122235465fcc992cb0b5c1b9899869f9ca5840bcd8bec05

  • \Users\Admin\AppData\Local\Temp\nsj8D93.tmp\InstallOptions.dll

    Filesize

    14KB

    MD5

    2a03c4a7ac5ee5e0e0a683949f70971b

    SHA1

    3bd9877caaea4804c0400420494ad1143179dcec

    SHA256

    d4f0042d8e7622b7e14395e926dd02edab3cdc77e82d88108b67a4d2cee9229b

    SHA512

    1942cdb522859f8dba46824786e361794a62e6201279201e1e0e2e07499fb6252933c5661782fccd77291c3650cafb2a7a08eee5431c8238f0da44840ee4c476

  • \Users\Admin\AppData\Local\Temp\nsj8D93.tmp\System.dll

    Filesize

    11KB

    MD5

    6f5257c0b8c0ef4d440f4f4fce85fb1b

    SHA1

    b6ac111dfb0d1fc75ad09c56bde7830232395785

    SHA256

    b7ccb923387cc346731471b20fc3df1ead13ec8c2e3147353c71bb0bd59bc8b1

    SHA512

    a3cc27f1efb52fb8ecda54a7c36ada39cefeabb7b16f2112303ea463b0e1a4d745198d413eebb3551e012c84a20dcdf4359e511e51bc3f1a60b13f1e3bad1aa8

  • \Users\Admin\AppData\Local\Temp\nsj8D93.tmp\UserInfo.dll

    Filesize

    4KB

    MD5

    8ef0e4eb7c89cdd2b552de746f5e2a53

    SHA1

    820f681e7cec409a02b194a487d1c8af1038acf0

    SHA256

    41293b9f6588e0fbdc8fcf2a9bd8e2b244cd5ff038fc13033378da337219c9dc

    SHA512

    a68533e8a19637d0d44219549b24baba0dc4824424842f125600fda3edcafc4bb6bb340d57a00815f262d82373b440d58d6e4e5b2ceb29bb3f6bc4cbde66c3c5

  • \Users\Admin\AppData\Local\Temp\nsj8D93.tmp\nsjBEA2.tmp

    Filesize

    30KB

    MD5

    1bc3c1608ac94cf3fb4575dc96610fe0

    SHA1

    02a953629b0e272d8a9bbf5dacbb03402853bc8a

    SHA256

    64f426601f824c9ec361755cb157d5f80499b8bbf4a29455bfca1fb65f2aae5c

    SHA512

    63881bcdf359f22de1a7582d943ec241ab2fe32fd68e202befd940c4e2ee86092797bc2de4514685d122235465fcc992cb0b5c1b9899869f9ca5840bcd8bec05

  • \Users\Admin\AppData\Local\Temp\nsj8D93.tmp\nsjBEA2.tmp

    Filesize

    30KB

    MD5

    1bc3c1608ac94cf3fb4575dc96610fe0

    SHA1

    02a953629b0e272d8a9bbf5dacbb03402853bc8a

    SHA256

    64f426601f824c9ec361755cb157d5f80499b8bbf4a29455bfca1fb65f2aae5c

    SHA512

    63881bcdf359f22de1a7582d943ec241ab2fe32fd68e202befd940c4e2ee86092797bc2de4514685d122235465fcc992cb0b5c1b9899869f9ca5840bcd8bec05

  • \Users\Admin\AppData\Local\Temp\nsj8D93.tmp\nsjBEA2.tmp

    Filesize

    30KB

    MD5

    1bc3c1608ac94cf3fb4575dc96610fe0

    SHA1

    02a953629b0e272d8a9bbf5dacbb03402853bc8a

    SHA256

    64f426601f824c9ec361755cb157d5f80499b8bbf4a29455bfca1fb65f2aae5c

    SHA512

    63881bcdf359f22de1a7582d943ec241ab2fe32fd68e202befd940c4e2ee86092797bc2de4514685d122235465fcc992cb0b5c1b9899869f9ca5840bcd8bec05

  • memory/1272-88-0x0000000003A70000-0x0000000003A80000-memory.dmp

    Filesize

    64KB

  • memory/1272-89-0x0000000003D00000-0x0000000003D40000-memory.dmp

    Filesize

    256KB

  • memory/1272-211-0x0000000006A50000-0x0000000006A94000-memory.dmp

    Filesize

    272KB

  • memory/1272-418-0x0000000003D00000-0x0000000003D40000-memory.dmp

    Filesize

    256KB