Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    25-05-2024 19:02

General

  • Target

    e140351b8825aa400d5711fc31ad5a6a7d24a62ef0da4205f2d71f89f0777d97.exe

  • Size

    6.0MB

  • MD5

    2fbdf634ddc63ecc2db4603f02b3a7d6

  • SHA1

    0317b16c30ef2c9c6c93f1a83eee28ffd2937467

  • SHA256

    e140351b8825aa400d5711fc31ad5a6a7d24a62ef0da4205f2d71f89f0777d97

  • SHA512

    ce5d19b278f36b05dcd31d0a00da597fbb61f7e5a3457577c6a77f9e60abf188e8b604854bb4804a6e4e38023b6ba09d6045f0dd5b2ad22c428c371ff25845cc

  • SSDEEP

    98304:fbdhDqohDS1F+CRcB27OgUWZHw8VQjr+/bJBAUZL+:fbdhDD23a2sWKjr+TJVy

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • UPX packed file 24 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 24 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 9 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e140351b8825aa400d5711fc31ad5a6a7d24a62ef0da4205f2d71f89f0777d97.exe
    "C:\Users\Admin\AppData\Local\Temp\e140351b8825aa400d5711fc31ad5a6a7d24a62ef0da4205f2d71f89f0777d97.exe"
    1⤵
    • Loads dropped DLL
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1252
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" https://changkongbao.lanzouq.com/ikW9T1cfeg5e
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2852
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2852 CREDAT:275457 /prefetch:2
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:2100

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    344B

    MD5

    56c7b7e4660a9ed94f93df308e2464de

    SHA1

    97b9215b452a911a42a2765e54184b062cccfd64

    SHA256

    e9584b80d073dcf89787d592b6f00a8b036ff153a25641baefb06e3ef4f3d765

    SHA512

    09fe5356ad679f0fa6629ba96c5518c4b12994355bf8e4c8b9a802589689d8e17829ac6d4c046d2bf21ad8027b3bdc3081066962a4d705bf6095a80d9afa8d43

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

    Filesize

    344B

    MD5

    30210c97018285f4c4405dbfeecf9615

    SHA1

    bb17e0f707b1c0a285a3c6b6bb6c7fa27461a728

    SHA256

    435db6760a6b18a251946fc00b55769b67d06c6189fe310e02bb269bb1077b6a

    SHA512

    a57074993d45d3131be1c80911db7a358408332af2841689a03efb3b3668ce372fdb98d7b48614a8b28c54913f601eb2f31e5c6d6c3f865e9f191ad8412272e2

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

    Filesize

    344B

    MD5

    3aa6039dfa8af1a4a037c0a3f45f020a

    SHA1

    4c0054f23a1688c4a11e9f7b8b40933e4b03edb9

    SHA256

    6a413136c92b509b50e845ade42a5223717027de9c36e15ec6004b8733c83b52

    SHA512

    23ced15adbccfd74eb8fa2cbfefb16001df1bb663805c6faa642ef9aafbbd4a3736f34438af6d132fbfdd7de698b0f6b8d151bc58ff75709adbe29e9f51bd47b

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

    Filesize

    344B

    MD5

    c6d555874bf35dc8c5f25e29b3447a76

    SHA1

    98b054632ae61d1b52d94974248838c2a14d20e0

    SHA256

    070372bd294a045c4162fed6e1cc44ab898635b11c19311c403b037ed5da8bd6

    SHA512

    ea9a024903897834e33d3278ba067e4388711da6da9a8d770bb208b08f6868e8b773ee02c403192f1c46bbc77fb0962cc262349a61d0d656727197dd6ec8fd7e

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

    Filesize

    344B

    MD5

    ac94ec08e0c276a988ff2f654903d2d1

    SHA1

    920281893d56e1aebdebb5cf0b0b7eeedc85a896

    SHA256

    0a0324271af26091ada117e1f24481f4656845bd2296107cd643d40d72a2f37d

    SHA512

    ed77557d87824b9f222efef23ccafffbc330fea4078141f28621d7fda07a79db4cce6b9cdb077b4743b1deb31bcce87cc5f8092729f2449b4be3bf7a73ea4f62

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

    Filesize

    344B

    MD5

    da6ce3319bdb3c68c37139abbd70ecb6

    SHA1

    9d3195208eda4d2103026eb68880698928c5072e

    SHA256

    016768dbf8025ab2707f8d58814b05d67d7d45ba07d0afc37065acbebd36e0eb

    SHA512

    b938ed26357c4c09eb580c7fdd248a79acfde531d7e904daa86f08fd362cb8e0eaca837d4d7da0453ae1c8a2aa9cd2303450752e48799443cef06f7a43eeddc1

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

    Filesize

    344B

    MD5

    2d25c76d9775bb6048c5c01abfe246b0

    SHA1

    f6de0e094904fd574f2d08c19080a42524bed11c

    SHA256

    b470ef5296ce665c6ab6d3f05b3bd07c73e3675918402615ec8119d0974db797

    SHA512

    b202ef36cf95a78e5ec8f59e386696c272ea362ca1d1cbf8f1a29ef29be1d49c377f6bf725f6be57efd4d7cd732e1f04f0c4755050322f9940d3ec89f77091c8

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

    Filesize

    344B

    MD5

    55065944e8c51713a98c512df91a402c

    SHA1

    bc36144b33e06d867aef744e626763e1db2f00b4

    SHA256

    eb2b7ac6d2ba008dbdb18630469578415d296bd8fccb22f971beefcb33843115

    SHA512

    ab3341c6b4a88127c8e25527e3ee66dfb4234537ce233c56fc4da6d0219e80a54c0bf3382908bd41c20b4387fa6a19d49314ab584e4fd93bcfe02db10724a284

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

    Filesize

    344B

    MD5

    d1f81d8990ece99e3b634aa3e9b4ba1b

    SHA1

    50cba8a96799abe71c6f6e953ff2141d952706f0

    SHA256

    a2cfc6a368593a23eb4d5257a384331c51ce962eceb49d7fb9f242acf4b1b6a5

    SHA512

    c45347ae8c362e2038b0504afdff924b7e7dc77665a6ef3af2b6aed1053e1182725b45428732f72263835d77bb98b0f0da1643be402fc5dedde8716d560c81ad

  • C:\Users\Admin\AppData\Local\Temp\Cab6C5D.tmp

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\Local\Temp\Tar6CBD.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • C:\Users\Admin\AppData\Local\Temp\·½°¸.ini

    Filesize

    10KB

    MD5

    842d9e10867153ad73a1a80d79afef13

    SHA1

    33a49d893273182e8aba6e9531c3077d4ab86516

    SHA256

    2823197bddf0203ea011003a4e70f2687da234a3388b5090a76da2c2562d33e4

    SHA512

    e6e10f63c7d3e65358bd6e66a7328f7d06d096b2ed936cd4504cfb8c6b5f4081dd55884bb915191156965b0eb9b3fda6a97b5b1a1eee45d59a41a4e375d1e518

  • C:\Users\Admin\AppData\Local\Temp\·½°¸.ini

    Filesize

    8KB

    MD5

    16ef8177433976c14d23f839a8c1152a

    SHA1

    2b653ca841498be9292cbbc8b5119504e225f56d

    SHA256

    2a30dc50f2e6e73b059d7419b34924114bffcfa8d99f7703bfbdd4f9e5da8855

    SHA512

    9cccf0eb97b898988e5da63584e195528dd3a0f34d0608844a33c6ac5928d83c8159151a7a15d5382a10114b819cb72d8c5840d254d9ac1023ad6ac22ac4833e

  • C:\Users\Admin\AppData\Local\Temp\¿ì½Ý·¢ÑÔ·½°¸.txt

    Filesize

    189B

    MD5

    322f59ce015ff2f1f00ecbe4fdfce380

    SHA1

    eb4756a5bb023f6d1feacdbeac6e94013e15d5b0

    SHA256

    c96ef901d8f23cb7626ef980c4cf5bece7aafeef9b2b8b28829d3a11a51562c1

    SHA512

    2610ce1c0a55da67faa9ddaca26529a87bf5ebc6706621682d54024fa887ca9cd54cdc5b854f8b79ea99b02a5277d6931f633fa876107d9ec1bf503bee23a02c

  • C:\Users\Admin\AppData\Local\Temp\ÉèÖÃ.ini

    Filesize

    246B

    MD5

    b06ddcfdb64cc28ca0a0ef609de5f05f

    SHA1

    bd95d141935795e249d2ab00824839fd42c8f505

    SHA256

    da0a5d79dc6a120811b556885b704f9fd158b1f19dd5a9c595719feb56065f00

    SHA512

    a1dd3cc527ce6a6c4b0ea2c369d4370f6f1bf332c9255e1a8eebfd5986c133dacc2e6c6a55071e5bcf4724f37ff2920f2e17567ca32571e664b458e526be72b5

  • C:\Users\Admin\AppData\Local\Temp\ÉèÖÃ.ini

    Filesize

    260B

    MD5

    924bf7a4ce305dad87743ba3c5773aa9

    SHA1

    12d0fddb472394b23e5176ab4ede38974e723b81

    SHA256

    01faf5e88442653bf38adc145d517f44d3495398e0aa666c7486b7030c126cbd

    SHA512

    2380c957717d3bc97ae2de96aba9cd3b50a1774eb96dc47840add1b12ee13485ee6cc6c4d30953b8f42d32ae3b02657966229fcbe58a60843df0cbd6170eb44e

  • \Users\Admin\AppData\Local\Temp\ExuiKrnln_Win32_20230421.lib

    Filesize

    1.5MB

    MD5

    ef48d7cc52338513cc0ce843c5e3916b

    SHA1

    20965d86b7b358edf8b5d819302fa7e0e6159c18

    SHA256

    835bfef980ad0cedf10d8ade0cf5671d9f56062f2b22d0a0547b07772ceb25a8

    SHA512

    fd4602bd487eaad5febb5b3e9d8fe75f4190d1e44e538e7ae2d2129087f35b72b254c85d7335a81854aa2bdb4f0f2fa22e02a892ee23ac57b78cdd03a79259b9

  • memory/1252-32-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-18-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-14-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-10-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-8-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-6-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-4-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-3-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-2-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-28-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-22-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-50-0x00000000003E0000-0x00000000003E1000-memory.dmp

    Filesize

    4KB

  • memory/1252-53-0x0000000000400000-0x0000000000A6D000-memory.dmp

    Filesize

    6.4MB

  • memory/1252-55-0x0000000000400000-0x0000000000A6D000-memory.dmp

    Filesize

    6.4MB

  • memory/1252-56-0x0000000000400000-0x0000000000A6D000-memory.dmp

    Filesize

    6.4MB

  • memory/1252-16-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-20-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-24-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-26-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-30-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-0-0x0000000000400000-0x0000000000A6D000-memory.dmp

    Filesize

    6.4MB

  • memory/1252-34-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-36-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-38-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-40-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-42-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-44-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-46-0x0000000000400000-0x0000000000A6D000-memory.dmp

    Filesize

    6.4MB

  • memory/1252-47-0x0000000000400000-0x0000000000A6D000-memory.dmp

    Filesize

    6.4MB

  • memory/1252-45-0x0000000000400000-0x0000000000A6D000-memory.dmp

    Filesize

    6.4MB

  • memory/1252-12-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1252-1-0x0000000000300000-0x000000000030B000-memory.dmp

    Filesize

    44KB