Analysis

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

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    26-05-2024 06:50

General

  • Target

    3667109defe39b08f999242388520fdca8248ac8a365a4ce480ecec756bcaf2d.exe

  • Size

    6.0MB

  • MD5

    a1d8f470de539890212271e16e9c6aea

  • SHA1

    a444d872738218727a46462def9c4cc4215f877f

  • SHA256

    3667109defe39b08f999242388520fdca8248ac8a365a4ce480ecec756bcaf2d

  • SHA512

    072d4f9ae20c2a5efb5853ca5d89d206903456acfafd282eacea9ac4c19f62fa25c9f527f6d364330fce4ca36e01eabf4a3cc87043831a416702e1df8e33c1fc

  • SSDEEP

    98304:fbdhDqohDS1F+CRcB27OgUWZHw8VQjr+/bJBAUZL1:fbdhDD23a2sWKjr+TJVp

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • UPX packed file 27 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\3667109defe39b08f999242388520fdca8248ac8a365a4ce480ecec756bcaf2d.exe
    "C:\Users\Admin\AppData\Local\Temp\3667109defe39b08f999242388520fdca8248ac8a365a4ce480ecec756bcaf2d.exe"
    1⤵
    • Loads dropped DLL
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1724
    • 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:1160
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1160 CREDAT:275457 /prefetch:2
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1784

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    344B

    MD5

    46f18bf04fb9e9385ecb10bd36846275

    SHA1

    c98905571a6d3aa0394c25ebeda87500738515a5

    SHA256

    515344461561ec35dac46b759bd03838ada0abac8bc1980e50c31350946ef775

    SHA512

    89b31785cf0a1342b7d9ac9d957a337cb33e99cfcb212f3587dafe840ec358d81d70ac1c74fad5ba775bf87bcdb4ff0991735fdced01a95d27632a1bb96291be

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

    Filesize

    344B

    MD5

    23b7de0f570062de60457f3afea82ac4

    SHA1

    e21b4f2ebc4ac80f45aaab99d64c80a844ff0d43

    SHA256

    5da57803d51be34e2fc14283cbce6cec8146a68a1af82880a130174ee8adf098

    SHA512

    a3b7e232253f8df4e1af4f6adb2bd27f8259ebb7ebd6c0075f71c0a5703a48fa6eef35637c1a0f4088304c9e5572143f4a6d412f2aa9eba0b0e384459d308818

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

    Filesize

    344B

    MD5

    158998eb3405f10987956961287fcaef

    SHA1

    eac28df8cefb64d3325a9a8d28599fd6f6c581cd

    SHA256

    faee1a655ab71c5e0ce43eb22cfc340a4940da6ad89fdf4d841fad4eb48a362c

    SHA512

    7ab839d218a181965851dd88dcca78cd3ca14084261d144e2422b5e1904acadc1eb63d8324da9fb1674f1b68ff625d553bc9457b7d226b605b57150ded471541

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

    Filesize

    344B

    MD5

    80abc3699a6fc4edb8a76b35fd2346c7

    SHA1

    fbc733cb90b47cdef6241920d50911da14f30f2b

    SHA256

    45666e2f5e44653b0dd659251cbe00c3eedcbec1cb30312ae286c97d40f5cedc

    SHA512

    1a66880e90fee4594317c5b8f3b29f642e5e7caf2f24f557cc6349ac0511e031af95604bc218d61fdada6b971217c116e38d29886057c44a319731b1152feb04

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

    Filesize

    344B

    MD5

    0e14987f50181c0b70fdcbd2f6ccd641

    SHA1

    f5726a6d96cf9d69a2ca113c55b3f1acfe8c971d

    SHA256

    9e3e9a63cfc34d87eef81f3de82a5b28bb3a14387a56e626bb6d3ae250527060

    SHA512

    408deae134081b66a6db93bcdb8394e91d36bd733f9b8fe85a1bc3de45da990656a0f389e1b0037892cbf2849b149d45a02f91e85e13c2d7c13f515896ebf72a

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

    Filesize

    344B

    MD5

    48803e87f9d70e6ed804a5bcf09bb4d9

    SHA1

    844079a67afd2ad8e005e3c815dd1287640dda19

    SHA256

    89776717fb27b5903f65e664ed2bf6de36fdcf43f22db7b23202084b47da3f8b

    SHA512

    cf45369674d3c6342e4009b171ba4bbe508dd934fc35a2a52701bd620e1a1d0c5e2e0a09fff36e60278e83ff2ed31b9aa8ff99d571469626423959993f424def

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

    Filesize

    344B

    MD5

    d6e3f2e803fae4cf37632229c30ecd66

    SHA1

    2ded794ceaabbf2419808ff754f555b0c586bfa4

    SHA256

    8dc58a99cc27a83fdc49c907fb384c47fdaf736dbf530a92b7192b2a57469428

    SHA512

    010ad49ef8b24230b51f062992ca28b9ae399da78b6ffc86012c5d193f019e8152e94d82574c8017d99b11b5f24dda7d278f1ee8cdc9acc19471cd77d25a9a79

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

    Filesize

    344B

    MD5

    5b1008bce10f47d9b70ca40eefbfdac1

    SHA1

    18c2f8172dede925c1daafe301facb3f687b75d9

    SHA256

    98ad9b623c669da233dbf8882a3e2789b2f10dd1aff95a52f0f844c3b183c8c8

    SHA512

    708127789892cc39d8d721d471e499ab0c9800534d25937e7225e6e01c8893dd022ec8088a5ca443a7aaa408fd922a5b787758a962f3af486114949478fa3bf6

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

    Filesize

    344B

    MD5

    0e3cb89a6f30ed2ad2264f717035437a

    SHA1

    68863034df27b2905509a0acea96207247a283d9

    SHA256

    2ba93867f55beb4e2e36a1e84aa4c19d2310923a26dc912f3b16c7afdb6116ca

    SHA512

    4b3ad3635e246f1a82bb1c0d4b94e7f3b3beb75a850c2d3fd6dac93afa1f49c9257b199393ba57420fd45ef33ceea4e52bf7a69f5d4ee380d696854bfdfd0ca2

  • C:\Users\Admin\AppData\Local\Temp\Cab656A.tmp

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\Local\Temp\Tar65BB.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

    02e3c0364cd93fd56fce9c2ae885339b

    SHA1

    ffee74b2301ef0c8e88dfa37c1d180d3eb952ec8

    SHA256

    50fd9ee309fd11fdd83f6cfe01ce6efeca5d8dd36f2cf075be2bf1bc7fa89095

    SHA512

    58f892ade02def2692de3dc09d61161db368cbd8b1491fccc4c6ac04d70d3f971d7306fe81136437c2594750cce65b04e3e510107129f6296e722035f85f6970

  • 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

    173B

    MD5

    162adf9cb5056d73c210b636faffde31

    SHA1

    db2804203429c6ab228ddf982e49fcc10709acc4

    SHA256

    4879c5f2c71d2db0e7ffecb9a08c93955ba350ebd780d549146178d213935f59

    SHA512

    2e6918e8e794f20bde533bbd456aa61c440b70b14706ea278b23a242910c600dd4222d298cd44504cd9f9aa2c0731162d0dc62656e397cb9257d6e85eddf574f

  • 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/1724-24-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-38-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-48-0x0000000000350000-0x0000000000351000-memory.dmp

    Filesize

    4KB

  • memory/1724-32-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-30-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-28-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-26-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-22-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-20-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-12-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-51-0x00000000003A0000-0x00000000003A1000-memory.dmp

    Filesize

    4KB

  • memory/1724-53-0x00000000003B0000-0x00000000003B1000-memory.dmp

    Filesize

    4KB

  • memory/1724-52-0x00000000003C0000-0x00000000003C1000-memory.dmp

    Filesize

    4KB

  • memory/1724-57-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-36-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-34-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-40-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-42-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-47-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-44-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-0-0x0000000000400000-0x0000000000A6D000-memory.dmp

    Filesize

    6.4MB

  • memory/1724-10-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-8-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-6-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-5-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-16-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-18-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-14-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-4-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-3-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/1724-2-0x0000000000270000-0x000000000027B000-memory.dmp

    Filesize

    44KB

  • memory/1724-1-0x0000000000270000-0x000000000027B000-memory.dmp

    Filesize

    44KB