Analysis

  • max time kernel
    141s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    22-05-2024 00:01

General

  • Target

    $R0/Uninstall Lunar Client.exe

  • Size

    179KB

  • MD5

    517ed455160b4214f9d98dabcf886eae

  • SHA1

    56edb44a5c9eac2ff5149e9b596e4b1cd50020e9

  • SHA256

    00418d80910520e347488f60e0c5c7af5fdf7dd7fc4c6f983977c4322cb6d085

  • SHA512

    ff7ba10da0738847db691d7eb7e3c77abc5bf5daa529c04856ef07e2019ade51f0b4e3326ad3dc1e3d193cb59465c86957e7299200cc2ec2437620e4dcc45a7c

  • SSDEEP

    3072:wn77v00hEoDEtau24lkW6Dx/XItjLSTtWIDlXiGzMTLlw4wPEaH2tvhOEA1RJCiJ:w740IGskW6V4tjLSTPpiGzMTO58s2t0t

Score
4/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 36 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall Lunar Client.exe
    "C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall Lunar Client.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2556
    • C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
      "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\$R0\
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2308
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" https://lunarclient.com/uninstaller/?installId=unknown
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2516
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2516 CREDAT:275457 /prefetch:2
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:2152

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    344B

    MD5

    29e2a3aaf2df50b8261ec999b0653154

    SHA1

    f33658ffc6498adf16779adda9f825c920140978

    SHA256

    dc9139a7771add971694f5cdc64b5fe8961f22f049359c5af1a0edb70cda0345

    SHA512

    e0c4d6dcb21c67287b96268f58476389fc760d09c3840723f64d3f6a40f65dbc25e54f88cef3919185664dd5b3b7a1e401a4cdc8e8648364bf6d62db26e833c7

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

    Filesize

    344B

    MD5

    ddaaf2691ffb88c84d4df008a65188a0

    SHA1

    628e339c8d5f5b78e46f50b0ba072a4f8768e0fe

    SHA256

    adf0dba465cd5e5fe2bf75b01f4e41636bd358657f29dfd7d10be108aff5d841

    SHA512

    ac0cae941b52dbf9dbd84e05c5b3932ea11c2b2e7ffcaa38be3260f5e2ade698123ab6d5739627380044d4b48b52d251efcf9c556105718adc5df6cf3a077ec8

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

    Filesize

    344B

    MD5

    361f042ee9f1db2188c181f4a87b49c4

    SHA1

    765f71a3a28d2e0696ce3dce64eb82365dcd4686

    SHA256

    320ec72b2baa00f0f030b6e2f77dc2b7ad261f1c918bfde108349f86aabe6a34

    SHA512

    bb6c321d722f39e3c00823b529f6ce956a3b61899736dfee43fa01e7208920dd2ca21ed0534944709ee0c9b78ab3f7259cdb5a6d8b0c20b366bdb6a882643d91

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

    Filesize

    344B

    MD5

    54d4dc8547e133478a6f07a30d0e38dc

    SHA1

    d0f83ea907cf921ccbf15e72f9bd0838c3cb19e4

    SHA256

    fbd6f3f6640bead9e0e699eb803e7577549dd79beea69f035bc9659aa9cf43b5

    SHA512

    97ebc1219e5984307f89efc92bdd900bc5c67b9f757c9a23937cc8be462560fbcefe9481492ecbd58833996ad129faa702e22d5b629a3de9e3561c2772eca2f4

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

    Filesize

    344B

    MD5

    c62d9ad028cf08435e888d3775ba09c1

    SHA1

    5c9a00c9d3d98c3b7135c422c1434b0f3eec5c74

    SHA256

    7ca1ec76d553b4c5793a8e031c01c7cbf29c601cf59f4ff78fe2223b4dc08f8a

    SHA512

    c50c7ffc0c5c35a4e87a68a7a13c12d306bce151103b86b85415d34d6c53297a5839fab0d5b77587ac9bdfa3b64a54bf350a6e1d17a2dfc1129edcddccd25980

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

    Filesize

    344B

    MD5

    19b0bd9420e0cec9ec342f9bca84888d

    SHA1

    b18ade6206e273627861c053877ebfac41902af1

    SHA256

    0095f344b4f791f2f435608b5beba578d2dc55ccb24eb6db975c6be8dc05162c

    SHA512

    167067665a1954dc35afc8d6496236c42a81baf649017b625ee3633794bc3990a2658e17418732083321b2525c34903336883d392bff62fa3b2e0eecac173079

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

    Filesize

    344B

    MD5

    c62922b89fa0714da002f2dd95b2344a

    SHA1

    a6e68b2455b3b0f8aabbbc375ccbd173ad06a2f0

    SHA256

    8333f8bab00194ac3cbbae2dbb20bf2298cd9e64b131357e0e7db2349573a1f3

    SHA512

    10e501aa3b6465823dffde65c4f670ba064f3351145c4d71a0c02155bea4e5a0cfd18ebc24c5a21f1af315f765ea5a61e391273cc6121103ac12041828eb44fd

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

    Filesize

    344B

    MD5

    e60e44292ee66e55699f2a360bba9b5f

    SHA1

    519c1911c6e2417317291c00c5842b7e63ee2ddb

    SHA256

    81ea014c11c99fb11e8fc31c1c64b2b0b472006531a22236a8797f482848ec63

    SHA512

    c956998055a1bf7d08580f1f68108759e4f61bbde331183431f27fccf6a1c95881b243c6bf2112d63d76adf0b507e68d62c2d2fae29664940f41cd3bb44d6cbf

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

    Filesize

    344B

    MD5

    d3fb3c65d519630f3b1f89e353eaf874

    SHA1

    3d14ffb60b65cd05e0a49cb3bb620b61b3f28bd5

    SHA256

    8a1b436a6a557154dabe0989571895c49fac8046e72508b6d52881d1dd0bded5

    SHA512

    bca9afbe9657bb9b80f56e0763495b3c54827cb5e8e80d682990a97e2ebc941ac5a6bc25fa7ab872aa3a9889a2396cfc0d534de0beb96e0c27b47bd28059e34b

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

    Filesize

    344B

    MD5

    31df2dbdc5954a97cc98d0222b368e26

    SHA1

    3bdf4b1212a54f45008fe7c137c24d73521bcf4a

    SHA256

    fe4b43978fc7ff78173c6859712402293efdb503aeebd382d3cc0b025f7e2e33

    SHA512

    e9c71b5a5251385c8b29c912e7faecd309f7ee883ad0ec5e6d1adcccd234ea8d2d36827c83181406241cb30463a57e217b538c32cf305f8b1b5cf0b84ba5cd9c

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

    Filesize

    344B

    MD5

    b4853ebab2e8160ed13826315376f289

    SHA1

    4614479eacdee8ffe2b9914458bac9a929a55fa0

    SHA256

    46b4c9847d567f34af7d68f9fff0b3661cb6bf7f5c2b55a308b5d5db0d9b7b70

    SHA512

    13721f63597e711457708cc73ea17099f45cc7d03268c4305aebe5107c84a7fc16e782697678b0ba090802138e5d31b2ca3659e2a432dbc7bca62c36c5af92c1

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

    Filesize

    344B

    MD5

    611bfacba57ef42b20c421e3d105e23d

    SHA1

    8ff609c6b8d2188c60e5b891579f33a80a96e9eb

    SHA256

    2f07683532158651cd449fc7c837a4aa493b7375362a3255af8ac5472f70aced

    SHA512

    c869d59759526c9af20b3a013e0c2222378cb1e4e676683f238a7af000a8b93862e03a2254294b30eca7d1a9a93c66eab3c077d18c4cea502a50df78ec7c9173

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

    Filesize

    344B

    MD5

    d8f028b72f643b9fd14121f592fa498a

    SHA1

    ae4365a58dcf96dab83d655a1d0ad0d1864f7f46

    SHA256

    92cb31d224e4959876fc1f87b02648495f8c297d92d1f347d7761d1728726912

    SHA512

    76978bb1f15ffd693021b79932789e1565445da5e4d4ef69175d4acd9a797e589cfff765dbea5c6a0e0de5a247c7638d7eefbd5d681d4fc8f643577d718372b8

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

    Filesize

    344B

    MD5

    09ab20a660e3d0263e0ac00da86ebbc2

    SHA1

    759aaf7dc89a2c5540908a1a16541317a1ebe1e7

    SHA256

    616f3a22ba91f837e3686c8c7b86e1ff562d142e99662bb7d048f21b00eebd4b

    SHA512

    9fca93f0ad1f5f35471a6b5aae52c3212ae30f3a1601617fb9bd906491b24d71010b00822c8e68b7a46663a0311d4e404c4f760bf4f6955af8a8010c36d49a42

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

    Filesize

    344B

    MD5

    60412bd67f7e56822261c42a685c520d

    SHA1

    1d113a4e0bee84032772f818f5ccda462557fb4e

    SHA256

    d0baa98142d8564a73737659ef7ab8a72cfb6c16f54075ca19c1000e4df0174a

    SHA512

    9ccb1118aa2664e090a71e008cb2641ebe04060c09b6ae72186119cb5eaed09c5c988619db6993495eabc45dc4b29c154e8f72d5804c3c7378cd66b9a3d19b07

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

    Filesize

    344B

    MD5

    478c524839cc710e8a08f37f4ec3448f

    SHA1

    37af71e04d436f22b58a7d88a2a2a25d864ac38a

    SHA256

    d1e9e10dadfe14a08c3feb4e75cfc5fa0f05baae8acf66b6987016e628af755a

    SHA512

    6062a79dbdd8464a3ae06bd9206bbeededc1e9d5820af679266b450148172197efde2dd39e5db6b99402a5dbbf147e9e95893f7ec735d140214e77270aea8ad8

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

    Filesize

    344B

    MD5

    899a4cde21fde6a5951d007f3be13fd0

    SHA1

    1271e76a9c4688ca67d994555a2ad3fe5a57c3ce

    SHA256

    74a6c2523ba7ae994d5e41b0cbf60952b01641453746e9c6388765f2e6dd6a61

    SHA512

    87b819fcdfbaf789324d2126ce33f6dc792f99b1ce2a3f165a648c63b95742b4cee271d4a38da9ffa835a34833308ee50999f6a790e2961f76335904de716e1e

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

    Filesize

    344B

    MD5

    8c879bf8a4b260251fb5b3191743833e

    SHA1

    e9a68f3d7804486fb04ca29925d41e412725cb40

    SHA256

    3414ab899d5917dc75a8189c1f9df7e7bd41070c5018e7c62822c9b56ae457b3

    SHA512

    562b7bdad196caa0d76a9ee151cbc4070784cff4f648b2102088fd4189abe76ddd286762f85314709d7dc3a20ea8c6455e91c6fa49b1c176444a43d24fa435e0

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

    Filesize

    344B

    MD5

    00df42a082d14556ee63d505bc51cf01

    SHA1

    3814198c3d21621ca1f0e6e312156a011f4eeb2f

    SHA256

    ad4a932465c4ec72fd3c7347a842b5d55ebd1c5909766aea86d14794a3dcb3fe

    SHA512

    20eaadd0be11e2929c9ef36cfedcf4cdcd0e31c3862eb4dfa8d2d97faac31dadbbdf22f19c526a5ea4ecc04cf144a740e56c958bc77d3859ac6685510306c773

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

    Filesize

    344B

    MD5

    1cda3bbd582e89ba0452c1c9ae3dd4f4

    SHA1

    e9927dfdb857472550b5e1ff78cb4684bd740f70

    SHA256

    e9ffff008e2c846d482527ba079f4d3662558627f5263b3abddff55ad0ae9361

    SHA512

    63de2eecdc77d3da918f1cf22a099e56f8293356e856897180104f77fca6f36a151832c456fbab4eff0ae2d0d4b172a9321f7719c71f4311fd4410146a940e22

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

    Filesize

    344B

    MD5

    4258ea4c2aca01ba7173bb03606230ec

    SHA1

    0eb1716772bbd99198579ff7232f891b9dfecbcb

    SHA256

    c726212a164a7754c0e3e01ee8c4da98522b71fac5798fb9dac0acd5745f133d

    SHA512

    66b58afabe8f6080f5a98090cd59b93a2ee78c39f657fa5d47c82340dee1c93a4037fab7c31169a5f83ee4a4f353fe355d861049bd120472507bd7354b6686e7

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

    Filesize

    344B

    MD5

    fec0fb9e8fbaa29da82d394d412e780a

    SHA1

    72360ce5a5436cdd305720f09b6d547ad9cf0abd

    SHA256

    1690c376feb16a59974d1625045a454d23086180852bca8038ac91d7c0a928a2

    SHA512

    b1662056d04ac6091bd646140fed0c908dd52303f08afbd1f48d34d74d5af52dee4f077ab5fbf44c70d2c320858374baa4023ba6fa8b14642c157955e6b03bd0

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

    Filesize

    344B

    MD5

    1a3ff1e064cbba19f7ca33b0a00c4f9b

    SHA1

    6e581e729dbecfa298646ea432dba4a29bfd628e

    SHA256

    1fd909c0341c7670b5371c73be091ae33d0734fef4db6b103ac7aad085a8dc2e

    SHA512

    4f5c8ea4da3410ba82eaf6ec25cd2d2667a241a73a3544cf879864a70d42749f9807e0ba8dfb39620c0229f8772483f612511027c32c64675e74c70f30b7b8d0

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

    Filesize

    344B

    MD5

    f4f593f0e0769b9e02b4b2e39d16b9b1

    SHA1

    77db392760e9af55dfac83227a909b87b4fa41a8

    SHA256

    deda13362b45c03d7581accc3e87e3a826ec075e45df92a70b6fa0012dae0c5f

    SHA512

    402a2bc0af9b07f1bb5bc4e35f2c04af0417ddbff59bdd7507dbee900d4075056a83c7e9dbc93855cfa19ebfaa8743b4af4e5d1b32fa2191000ea0b671d8acd0

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

    Filesize

    344B

    MD5

    1669083264c32576369d6576154a31d4

    SHA1

    30ef26b55d9bf4d9ecc40430446ed15b23df4ef6

    SHA256

    02986579486dcde18a00c97647779cbdf5726297e2167fa5d032069bc23bc0e8

    SHA512

    9983abc9c419467f3328771b344c91969196ae3f36c0f0b2873c5ee7e6783622dc8d7980937a9ae87d8f36db13496561df6ceff4b2eb534f61bc7ce3546a3b89

  • C:\Users\Admin\AppData\Local\Temp\Cab454C.tmp

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\Local\Temp\Tar455F.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • C:\Users\Admin\AppData\Local\Temp\nso27CD.tmp\StdUtils.dll

    Filesize

    100KB

    MD5

    c6a6e03f77c313b267498515488c5740

    SHA1

    3d49fc2784b9450962ed6b82b46e9c3c957d7c15

    SHA256

    b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

    SHA512

    9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

  • \Users\Admin\AppData\Local\Temp\nso27CD.tmp\System.dll

    Filesize

    12KB

    MD5

    0d7ad4f45dc6f5aa87f606d0331c6901

    SHA1

    48df0911f0484cbe2a8cdd5362140b63c41ee457

    SHA256

    3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

    SHA512

    c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

  • \Users\Admin\AppData\Local\Temp\nso27CD.tmp\WinShell.dll

    Filesize

    3KB

    MD5

    1cc7c37b7e0c8cd8bf04b6cc283e1e56

    SHA1

    0b9519763be6625bd5abce175dcc59c96d100d4c

    SHA256

    9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6

    SHA512

    7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f

  • \Users\Admin\AppData\Local\Temp\nso27CD.tmp\nsExec.dll

    Filesize

    6KB

    MD5

    ec0504e6b8a11d5aad43b296beeb84b2

    SHA1

    91b5ce085130c8c7194d66b2439ec9e1c206497c

    SHA256

    5d9ceb1ce5f35aea5f9e5a0c0edeeec04dfefe0c77890c80c70e98209b58b962

    SHA512

    3f918f1b47e8a919cbe51eb17dc30acc8cfc18e743a1bae5b787d0db7d26038dc1210be98bf5ba3be8d6ed896dbbd7ac3d13e66454a98b2a38c7e69dad30bb57

  • \Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe

    Filesize

    179KB

    MD5

    517ed455160b4214f9d98dabcf886eae

    SHA1

    56edb44a5c9eac2ff5149e9b596e4b1cd50020e9

    SHA256

    00418d80910520e347488f60e0c5c7af5fdf7dd7fc4c6f983977c4322cb6d085

    SHA512

    ff7ba10da0738847db691d7eb7e3c77abc5bf5daa529c04856ef07e2019ade51f0b4e3326ad3dc1e3d193cb59465c86957e7299200cc2ec2437620e4dcc45a7c