Resubmissions

03-07-2024 22:59

240703-2yn7wszhlp 10

03-07-2024 16:13

240703-tn93lsyglf 10

03-07-2024 16:11

240703-tm84xsyfma 10

10-05-2024 16:25

240510-tw1h5shh47 10

24-08-2023 11:16

230824-nda8msdf8z 10

Analysis

  • max time kernel
    57s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    03-07-2024 22:59

General

  • Target

    5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe

  • Size

    669KB

  • MD5

    ead18f3a909685922d7213714ea9a183

  • SHA1

    1270bd7fd62acc00447b30f066bb23f4745869bf

  • SHA256

    5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18

  • SHA512

    6e532d9c3d186e4dac38823ae9152056346e283613f0caf088b21a1b3e5f4f6cf3bad8c407168b1072895a386e3be0b8c11ad1cb326d3d3ff0eb8562052def91

  • SSDEEP

    6144:bLUHLyHlwFjxDi2nEZkQ4NXxp0XMgkBWPqdN/jGdfYY7SRA7j4YlvfYAAjJ:4uFi02nEZh4jp0XLuxGdgTm73vL

Malware Config

Signatures

  • Modifies file permissions 1 TTPs 1 IoCs
  • UPX packed file 4 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 6 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
    "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2844
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\96ba9a8b-55bd-4614-b019-f28af7e80129" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      PID:2688
    • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
      "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2752
      • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
        "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --ForNetRes "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1 IsNotAutoStart IsNotTask
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2304
        • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
          "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Service 2304 "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1496
      • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
        "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Service 2752 "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1372
  • C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    1⤵
      PID:1468
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\Documents\Files.docx"
      1⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2076
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        2⤵
          PID:1084

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12

        Filesize

        1KB

        MD5

        2365869258df7a66a2121b802ca4afd9

        SHA1

        73acc30a2edeb9d6830de559bb8a74f35168135d

        SHA256

        d6b1932822bbd72a8e78c771717d992142348f67d625a42393719fefbe59b0ed

        SHA512

        795004bab536e128dbd81c188976d37c7b650efbfa5a80374df4c65a1049c27658f4620b7605583928eb167fcb69b4c99e4c8730c507b824a7bde9c7fb0e21f4

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8

        Filesize

        436B

        MD5

        1bfe0a81db078ea084ff82fe545176fe

        SHA1

        50b116f578bd272922fa8eae94f7b02fd3b88384

        SHA256

        5ba8817f13eee00e75158bad93076ab474a068c6b52686579e0f728fda68499f

        SHA512

        37c582f3f09f8d80529608c09041295d1644bcc9de6fb8c4669b05339b0dd870f9525abc5eed53ad06a94b51441275504bc943c336c5beb63b53460ba836ca8d

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

        Filesize

        1KB

        MD5

        a266bb7dcc38a562631361bbf61dd11b

        SHA1

        3b1efd3a66ea28b16697394703a72ca340a05bd5

        SHA256

        df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

        SHA512

        0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12

        Filesize

        174B

        MD5

        91706fdd0432f2bf0539f126cecaf098

        SHA1

        314ab7661ef7f9bff9f15b3792be22d8fc8aef5c

        SHA256

        e9d54dc4ad87e7ee507ddccffd16cb9ef06bb523dfb1e064881a1a965216bc0c

        SHA512

        a6464a8ee9edad7c2b0323b1551cbd3a495876fb885d8bcabbe1dfb90efd3d129c44e299cccaa6efade49972a5e45d5baccdcd40298d00f6c0b384d255a1e21f

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

        Filesize

        344B

        MD5

        d564b39fe61872377d48194640cc75c2

        SHA1

        761d6c14fa56cf3aa9ad83a167a64bf45041bdaa

        SHA256

        203ff1048b212159070ccb8f022cdb0c6ac39b8d761229e72d91f3d128932734

        SHA512

        a3917006d8a1e8119a4c6cb0bdc0df1656a8810351f1d711cee29d4af63849abd18a4f2818c4ea127dc2f71b5732c9e779f943dcbced989c0edf9c449eb6ae86

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8

        Filesize

        170B

        MD5

        5ea348fa0573a689fb1f738f252232ac

        SHA1

        9d1010728c6af32ea8b6ef58d1c1fc5c79b29f5b

        SHA256

        811d7744ba41f8729bdd46144fcb8109a30c5c25d181c5769ed67d8bdf2c9253

        SHA512

        a85586d4d02e331e162d3ec31610ad83242501ec441f8fa6a9f4afca47151b13fb96572538f9b53ee4104448543f08e29511915f29b29cb4dec1a5271107413e

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

        Filesize

        242B

        MD5

        5c32db185149e0f79d3c092be9202212

        SHA1

        5fe70c7e12099a300d7ce2af80b488d921e87de1

        SHA256

        fbd19f72b916a282388a1e41603772deb3e3f9673ef0e7be65b3af5201f39a72

        SHA512

        e0cd979b92b0f947f6939cb3e07f762dc148692adc7e8830700ef79101e8c79cc20cf0b83c64911c94f4f3ad1b058a0f479202f3f285b4155ecb83ea911ed3a5

      • C:\Users\Admin\AppData\Local\96ba9a8b-55bd-4614-b019-f28af7e80129\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe

        Filesize

        669KB

        MD5

        ead18f3a909685922d7213714ea9a183

        SHA1

        1270bd7fd62acc00447b30f066bb23f4745869bf

        SHA256

        5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18

        SHA512

        6e532d9c3d186e4dac38823ae9152056346e283613f0caf088b21a1b3e5f4f6cf3bad8c407168b1072895a386e3be0b8c11ad1cb326d3d3ff0eb8562052def91

      • C:\Users\Admin\AppData\Local\Temp\Cab58E9.tmp

        Filesize

        68KB

        MD5

        29f65ba8e88c063813cc50a4ea544e93

        SHA1

        05a7040d5c127e68c25d81cc51271ffb8bef3568

        SHA256

        1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

        SHA512

        e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

      • C:\Users\Admin\AppData\Local\Temp\TarD2DA.tmp

        Filesize

        177KB

        MD5

        435a9ac180383f9fa094131b173a2f7b

        SHA1

        76944ea657a9db94f9a4bef38f88c46ed4166983

        SHA256

        67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

        SHA512

        1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

      • memory/1372-49-0x0000000000400000-0x00000000004A9000-memory.dmp

        Filesize

        676KB

      • memory/1372-89-0x0000000000400000-0x00000000004A9000-memory.dmp

        Filesize

        676KB

      • memory/1496-86-0x0000000000400000-0x00000000004A9000-memory.dmp

        Filesize

        676KB

      • memory/2076-90-0x000000005FFF0000-0x0000000060000000-memory.dmp

        Filesize

        64KB

      • memory/2304-87-0x0000000000400000-0x00000000004A9000-memory.dmp

        Filesize

        676KB

      • memory/2304-48-0x0000000000400000-0x00000000004A9000-memory.dmp

        Filesize

        676KB

      • memory/2752-30-0x0000000000400000-0x00000000004A9000-memory.dmp

        Filesize

        676KB

      • memory/2752-45-0x0000000000400000-0x00000000004A9000-memory.dmp

        Filesize

        676KB

      • memory/2752-46-0x0000000000400000-0x00000000004A9000-memory.dmp

        Filesize

        676KB

      • memory/2752-47-0x0000000000400000-0x00000000004A9000-memory.dmp

        Filesize

        676KB

      • memory/2752-112-0x0000000002690000-0x0000000002739000-memory.dmp

        Filesize

        676KB

      • memory/2752-111-0x0000000002690000-0x0000000002739000-memory.dmp

        Filesize

        676KB

      • memory/2844-0-0x0000000000400000-0x00000000004A9000-memory.dmp

        Filesize

        676KB

      • memory/2844-2-0x0000000000270000-0x0000000000370000-memory.dmp

        Filesize

        1024KB

      • memory/2844-26-0x0000000003C30000-0x0000000003CD9000-memory.dmp

        Filesize

        676KB

      • memory/2844-3-0x0000000000400000-0x0000000000476000-memory.dmp

        Filesize

        472KB

      • memory/2844-25-0x0000000000400000-0x00000000004A9000-memory.dmp

        Filesize

        676KB

      • memory/2844-24-0x0000000003C30000-0x0000000003CD9000-memory.dmp

        Filesize

        676KB

      • memory/2844-28-0x0000000000270000-0x0000000000370000-memory.dmp

        Filesize

        1024KB

      • memory/2844-27-0x0000000000400000-0x0000000000476000-memory.dmp

        Filesize

        472KB