Analysis

  • max time kernel
    144s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    07/03/2024, 11:20

General

  • Target

    b89d36a325d0a527ed039e65038260c4.exe

  • Size

    741KB

  • MD5

    b89d36a325d0a527ed039e65038260c4

  • SHA1

    12e2e78fa8e71ea09d8e12fae6d88ac9e7f3d848

  • SHA256

    22abc3c89f804c2a187c3a2e714e1410ce7d447e6d019c9c94003fb06e74697c

  • SHA512

    b6e223fea397fdc9a386bd4343ca02c962992838a6c76874df54d499256093c8302e49bbff75a384800c294b1ad1ad7cc6821f0c708c33050c9a77860a02d393

  • SSDEEP

    12288:f2Pn6uN/0F4ZO5XqwTLxY/q6r1LtZYsHGllHx4wgK/225+Mctm8sC3rSDU2:ePPNsFdVlO1LtGl1GZt3Gn

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 11 IoCs
  • UPX packed file 2 IoCs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops desktop.ini file(s) 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 40 IoCs
  • Runs .reg file with regedit 1 IoCs
  • Runs net.exe
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 60 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b89d36a325d0a527ed039e65038260c4.exe
    "C:\Users\Admin\AppData\Local\Temp\b89d36a325d0a527ed039e65038260c4.exe"
    1⤵
    • Loads dropped DLL
    • Drops desktop.ini file(s)
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2856
    • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\sup.exe
      "C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\sup.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2584
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c C:\Users\Admin\AppData\Local\Temp\bt3030.bat
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2296
        • C:\Windows\SysWOW64\net.exe
          net stop "Windows Firewall/Internet Connection Sharing (ICS)"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2452
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Windows Firewall/Internet Connection Sharing (ICS)"
            5⤵
              PID:3028
          • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\instsrv.exe
            instsrv.exe svchost C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\svchost.exe
            4⤵
            • Executes dropped EXE
            • Loads dropped DLL
            PID:2820
          • C:\Windows\SysWOW64\regedit.exe
            regedit -s a.reg
            4⤵
            • Runs .reg file with regedit
            PID:2740
          • C:\Windows\SysWOW64\net.exe
            net start svchost
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:2432
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start svchost
              5⤵
                PID:2440
      • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\svchost.exe
        C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\svchost.exe
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2448
        • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\csrss.exe
          C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\csrss.exe
          2⤵
          • Executes dropped EXE
          • Modifies data under HKEY_USERS
          • Modifies registry class
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          PID:2220

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\a.reg

        Filesize

        556B

        MD5

        5ee7fe7e4463ecabdb6236033d2c3a05

        SHA1

        ea831d9104dae3eaf30ab8f90dbd34eedc9145a3

        SHA256

        236da3230ac60deed70eeb38f92a9d60a0eca2f9ee960f0127802ba768ee8fde

        SHA512

        e15a864ee16c243460516b16e26ad791f202f66f949a8ea824709d70846f78061d603fdc1c77835d8f772edf3459e01bb4ea2f593e16c07ec4fe891eb133b87b

      • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\aliases.ini

        Filesize

        11B

        MD5

        2218df9cdffc814a3dc25c81dd8619dd

        SHA1

        0290f796218937f61331adc8803788e7cd4c2299

        SHA256

        455831b583cfa9549746bcd296a60f5191d2eff7829d469e029b68768c5e56d1

        SHA512

        7aa4c745dfce7b2c38c4930e8275885727a19480597f685f89ab0e536175c31a2d5ee61cfd84b483f73eb211970a1a4fefcc59d8ef97b9af7bf09b7dcf932efa

      • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\control.ini

        Filesize

        61B

        MD5

        f5d1a3af67f05f5af2b0fca009887a97

        SHA1

        bddaa45a9849524c4648fb778b7e0601d35ecbed

        SHA256

        d846844887cfecb6cfbf1fa51dd2380cd203b21d154e1938df15567c256f97a5

        SHA512

        21d84f8fb1cc2c3abda0452704f45e3c79092b33e7bb3a5fdc3973cacc53014681ba7977df60818f0375353fdac4e58977048c4db275c1c689f6ed4aef2a3496

      • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\csrss.exe

        Filesize

        579KB

        MD5

        def8c81af6b9eca2309b735bff710aaf

        SHA1

        7b1e9bda9d2cf0f6e626f5d8eb186280edbaf20c

        SHA256

        babda4e7c14e753ce01212ad1efa9d2718d1edaaec3d11e6d2676689645a3171

        SHA512

        64bb4ae41507a5d0a6657caec00ead3ad964e5ae969b04eda5ea933a4215621f6c2e5af9f21df2ddd33636b1af1116b00634e5831723430cf80bab2aa9d9b01c

      • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\fullname.txt

        Filesize

        51KB

        MD5

        63a4c1fb434368c06d8e6ff8efeb45c8

        SHA1

        280ba93ed9c87dc0d883cfac71a67e456fa7035c

        SHA256

        a84c9f4aae9a1e3f9343edb745e7ddef9fb92a09ff9f149da0ac0c656825f561

        SHA512

        2dbca5d5240ab3b590b0b13bbe04b3dfc9f64dc31860bfafe95a434f2e174de28509107c4446345800cd989a98be924789e2b0c460c0f6176af7f19c2f1ae792

      • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\identd.txt

        Filesize

        31KB

        MD5

        3ebc73497642e15d01c980d2d110063a

        SHA1

        7f34c0f36d871fe19b50f54748f5be8996940d31

        SHA256

        d2467bf37684c1cfb41a714182cc7b258035118c4871b5504ed10cdce4f243bc

        SHA512

        8e1c997427625cfa10ba11a84ef050788d67fd1e66d8dd5bc19dc342ae6e8a51e34a6d44f67b20ead6034c12daf2c1c02ed93cb21e41a978ed6ad1532976bf35

      • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\instsrv.exe

        Filesize

        31KB

        MD5

        9f7acaad365af0d1a3cd9261e3208b9b

        SHA1

        b4c7049562e770093e707ac1329cb37ad6313a37

        SHA256

        f7b0a444b590eb8a6b46cedf544bcb3117c85cab02b599b45d61b8a590095c9c

        SHA512

        6847bb10cf08f7e594907b5d160768e60468b14a62cdd87ad33dcc0bc2b523549c1c91e9854069ca11ee074e43a6f41f11351201626922c02aaea41fd32c2a54

      • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\mirc.ico

        Filesize

        5KB

        MD5

        e09aa9787af5cc53fd7525dd6693cf10

        SHA1

        57445d0779a66c61741822c0a7988573efee13d7

        SHA256

        c7f023fc4c85680f5c334fef09155e81861634108140a5716a1395dd7cd62266

        SHA512

        b71a8c0939d545afa173f107f99314848c6104928b77d6f39d6e4486ca2b65797cecff0f877160edf6ca1d21dca95b7f1be53221811c945f7c4be6e77a4d1f8c

      • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\mirc.ini

        Filesize

        3KB

        MD5

        8cc0695282007e86fe3b57e93bcd8589

        SHA1

        e5b08bf0f016ee3e97633869bea2dbe089151cc6

        SHA256

        8aa2f4125ddf3e7c0c41863f6895207e96e52cf5e8f91d672eb65527d4551413

        SHA512

        a10fb8e773d804cc156e6637604045cbe6dc5ec4a95922093231ceb38a58439b6c9f90f4e9e8b80c0f55873e6fd31be64d8128e6ca903d659f14d3e6de946441

      • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\mirc.ini

        Filesize

        3KB

        MD5

        9cd4e1ec2e2ff59475e57ec36a99e85b

        SHA1

        0159f6d801394f87ff7aff63dcd493271b395771

        SHA256

        38f562506cfea84647f9078a8fb4aa8be0821f9997893e6251f09b3a367da35f

        SHA512

        5b0516a2c6dbb1b4abce32732a65c3aba65d43db4085050fa463f353c2bb5c21f19b2abffd9b72bc3cdb11010cd07faf94bfb5871162cd115430ebfc83bc74e1

      • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\mirc.ini

        Filesize

        3KB

        MD5

        5a23c702dc990cc98992e59d96958df3

        SHA1

        9a8a4c0fdb85bed365a219f8aaa6ddabfc1d7d83

        SHA256

        4279c9cc3a2f9948050c6d33908087da31736be85cbd5284804b3a49099e5a42

        SHA512

        ae783bff305b09fe4cd20da7074369cedb78c0f2f61bb0e65092a102afb2978504c64b78265c7d702a63c69a73f0940ec83974797ab322ce7a9040ba85842028

      • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\nicks.txt

        Filesize

        54KB

        MD5

        2d66930c1063cf32fbd14e1a21aa03e8

        SHA1

        8983e69a22918105324ef7ba12006b5e1b15c539

        SHA256

        7b7e8c960cc494091ebc6ed57d3f04df09ac3030df66449f2c401b46bff9bc8b

        SHA512

        6f6b96a02a029abc2bff5993d8971b40c5e73a1e2ca6381000c4db0f0c619b0254146652ef3721c8297348f9a8a6935fd043d88a01ee1664c123c5fa4d696b6f

      • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\notify.txt

        Filesize

        108B

        MD5

        67594f7dd0300af35da46379cae4f4e6

        SHA1

        3d1724e333a612cea45d5267166615f139c27d73

        SHA256

        2a81346dbb15037f5a8ce274b29f664866d089f0e41102b3217322463abea085

        SHA512

        b440ed07732f55209a0a77c85822558386bc7de1c20551336e75a50373e6cdce8a4c3911f632d3f65a8298fd4c294de5f0c31ea5a04528902d11d7d21a457a55

      • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\remote.ini

        Filesize

        87B

        MD5

        aab3e021564977a54422ba7dd1429bae

        SHA1

        a89306dfb4818f2ca03cc7ef53cc20635e53764a

        SHA256

        d8ddb7f8a33d4a94c9225a4d446cf1a8b517cef6de375eb114785929b945520e

        SHA512

        a35f593a00cba8bb2ff1c4c2ba7b7c6868fd0d6bce825901ef16c8215928b8c8af48950d0445813d5fa2d01126e377c5ac9a79402b31c49d03abbafba1069d83

      • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\script.ini

        Filesize

        9KB

        MD5

        407a8aeaaf12df9d6ad971b738c15aeb

        SHA1

        310de65f8542a770edca5df7528665220647af5b

        SHA256

        7d5409498e172335e77a3d4e2ff06c6a745ab2bf837fa21b0883cdd8f342a3c8

        SHA512

        8112439df510ae2a6582a481c12eb615e09bc27c619b3d048b6e58e1341c2cea7492b20a6a4faca9a9e5a455e1163ab39d7136a3269547d42edc7b605d6ed783

      • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\servers.ini

        Filesize

        1KB

        MD5

        d7210dbbfa92aca222429c0e1e49be27

        SHA1

        eef4d67ecd3e08851da7c6f985270e2554154ae3

        SHA256

        0463ca9d506a677c16bd38649e22cb125a4bc79bef0910e57ef2f2f4bfade57a

        SHA512

        b3e4be04ebf20ab416304d2fe0de45bc2fe34f439b7f3ee4eeffb1096545448cf019b85a03dbd39ef817828aed6d73b58a40bf5085e551dca5f1a83cd6b9a4ae

      • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\svchost.exe

        Filesize

        8KB

        MD5

        4635935fc972c582632bf45c26bfcb0e

        SHA1

        7c5329229042535fe56e74f1f246c6da8cea3be8

        SHA256

        abd4afd71b3c2bd3f741bbe3cec52c4fa63ac78d353101d2e7dc4de2725d1ca1

        SHA512

        167503133b5a0ebd9f8b2971bca120e902497eb21542d6a1f94e52ae8e5b6bde1e4cae1a2c905870a00d772e0df35f808701e2cfbd26dcbb130a5573fa590060

      • C:\RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\users.ini

        Filesize

        947B

        MD5

        fef8a64b448040956dabff5c102104e2

        SHA1

        6029bf598ceb27341cd0a10373690a40042306a0

        SHA256

        1dce320553ab6f2526423359a2ded7daa9c2c4877df6ffe7e7a5cb39c705bd99

        SHA512

        04ad4f14eee880129c47ab740beecfd8ca368922496c45e543fc022d1c05ec65f68da390604bb95900fa3507ddc1ace55ea430b319c7997fac5944e97df92489

      • C:\Users\Admin\AppData\Local\Temp\bt3030.bat

        Filesize

        220B

        MD5

        df6887d17e2c9912e637347ec7ca20b5

        SHA1

        dfcd2ad7429ac5ad537e6b7d10004cd7c9168066

        SHA256

        f331858ea0c53b1a2b1fa301f5e74dddc7888dd874bd3968007dae4e4808d39c

        SHA512

        b79559945d4ca0d78fb12ff15d397e4bbd4e0bae6eba96721bffc246b3c423e5cd2bd1aacaeed12f5740e111cd8dafcef9c97a497022da0deff44770464e885f

      • \RECYCLER\S-1-5-21-606747145-1085031214-725345543-500\sup.exe

        Filesize

        146KB

        MD5

        8ecf1b30f5fbb12a2fe138364d351a26

        SHA1

        ff0b828a9df228cf05898d6db9982a1fedbc0584

        SHA256

        22a51f140a738f69da01c21ab6fcf9a5ec653da1e4a73ad107e1a0faffba16fb

        SHA512

        1971ea29934fb3c09c53d41db23616f2d3b89bba81db51ce7f09840489f0d471dd8bfe5b09d335020f11047af744c4c4c5ab3d896f9b8d222b6b93c419201560

      • memory/2584-242-0x0000000000400000-0x000000000042C000-memory.dmp

        Filesize

        176KB

      • memory/2856-0-0x0000000000400000-0x0000000000423000-memory.dmp

        Filesize

        140KB

      • memory/2856-48-0x0000000000400000-0x0000000000423000-memory.dmp

        Filesize

        140KB

      • memory/2856-3-0x0000000000240000-0x0000000000263000-memory.dmp

        Filesize

        140KB

      • memory/2856-2-0x0000000000240000-0x0000000000263000-memory.dmp

        Filesize

        140KB

      • memory/2856-1-0x0000000000240000-0x0000000000263000-memory.dmp

        Filesize

        140KB