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01-07-2024 18:12

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Analysis

  • max time kernel
    145s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    01-07-2024 18:12

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 6 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.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of WriteProcessMemory 20 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:2200
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\385560ba-634a-412e-8b4e-a3b6bf8fc663" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      PID:2704
    • 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:2604
      • 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:2772
        • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
          "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Service 2772 "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:2868
      • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
        "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Service 2604 "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:296

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

File and Directory Permissions Modification

1
T1222

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

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

    3653aeefdbbc936f1a2e005946cb29ec

    SHA1

    807d16ebc8609c3df8c3f091c0393968b568936b

    SHA256

    1e55634960e230d2a8d81297f9deb55d3fdfa2bc8e596cab88d8204dc501e094

    SHA512

    03d98e10be4a481c41610ba1237cd7c2644c580025f67255b32c8002b0db049449aba66ddd1d088a7c824475f829f67d53166dffe56848a56ea6559d326215d5

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

    344B

    MD5

    09962b8a16e45675c5e7ab943ca3e5a9

    SHA1

    06361c418c064c84439325035448f08167ca58b9

    SHA256

    dc0c879e8c7553de8ccf26e0d0080699e36b00841fa14f0425f4c59dbde5cbae

    SHA512

    eba6e5bb3e3cc53b142aef9da9d1610c902b3e75dad4d7e9bd065c8fd2700741bd48cbe3d952a0dd477ae42ba587bd8f72c2a63f42a29897c7c0c73f699d51e8

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

    170B

    MD5

    2a3d01e7aafe9ecfec70d25de1dbee24

    SHA1

    c4d34077cc2cc8e73ee0f8a7a864ce0b27863b83

    SHA256

    8c12c349caa13de11b703cc65a9a6f27c86716d206b68663b827681ed0bacbdd

    SHA512

    99e8cfdb03460377eabb76bb0afb55322a0d6c0b23a7dd999690c58fec94c9725993f506df1179f7a9d36b4eaf2b24554a82655d2966641b1b2ee8f3040ff685

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

    242B

    MD5

    315acf67a0736e670b5d64aa6b59836c

    SHA1

    da25d128c6988e8e648524257894c6f20cf54040

    SHA256

    1da3490e29d7178f6009eb0c5495b0d35d63f0e10e239eae332bee7b308b8121

    SHA512

    862b1bb577c25567da68db1b24901ecb4a32b38f198c4fb1d360293f54a7bf00215b18a0f2be99d5d84256273507bcb4a55a0dae23b8319ea813e2b0bf8ad4b0

  • C:\Users\Admin\AppData\Local\385560ba-634a-412e-8b4e-a3b6bf8fc663\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
    Filesize

    669KB

    MD5

    ead18f3a909685922d7213714ea9a183

    SHA1

    1270bd7fd62acc00447b30f066bb23f4745869bf

    SHA256

    5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18

    SHA512

    6e532d9c3d186e4dac38823ae9152056346e283613f0caf088b21a1b3e5f4f6cf3bad8c407168b1072895a386e3be0b8c11ad1cb326d3d3ff0eb8562052def91

  • C:\Users\Admin\AppData\Local\Temp\Cab4D46.tmp
    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\TarC5DF.tmp
    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • memory/296-81-0x0000000000400000-0x00000000004A9000-memory.dmp
    Filesize

    676KB

  • memory/296-46-0x0000000000400000-0x00000000004A9000-memory.dmp
    Filesize

    676KB

  • memory/2200-40-0x0000000000400000-0x00000000004A9000-memory.dmp
    Filesize

    676KB

  • memory/2200-2-0x0000000000660000-0x0000000000760000-memory.dmp
    Filesize

    1024KB

  • memory/2200-0-0x0000000000400000-0x00000000004A9000-memory.dmp
    Filesize

    676KB

  • memory/2200-22-0x0000000000400000-0x0000000000476000-memory.dmp
    Filesize

    472KB

  • memory/2200-23-0x0000000000660000-0x0000000000760000-memory.dmp
    Filesize

    1024KB

  • memory/2200-21-0x0000000000400000-0x00000000004A9000-memory.dmp
    Filesize

    676KB

  • memory/2200-3-0x0000000000400000-0x0000000000476000-memory.dmp
    Filesize

    472KB

  • memory/2604-41-0x0000000000400000-0x00000000004A9000-memory.dmp
    Filesize

    676KB

  • memory/2604-45-0x0000000002940000-0x00000000029E9000-memory.dmp
    Filesize

    676KB

  • memory/2604-42-0x0000000000400000-0x00000000004A9000-memory.dmp
    Filesize

    676KB

  • memory/2604-26-0x0000000000400000-0x00000000004A9000-memory.dmp
    Filesize

    676KB

  • memory/2604-24-0x0000000000400000-0x00000000004A9000-memory.dmp
    Filesize

    676KB

  • memory/2604-80-0x0000000000400000-0x00000000004A9000-memory.dmp
    Filesize

    676KB

  • memory/2604-39-0x0000000000400000-0x00000000004A9000-memory.dmp
    Filesize

    676KB

  • memory/2604-84-0x0000000002940000-0x00000000029E9000-memory.dmp
    Filesize

    676KB

  • memory/2772-44-0x0000000000400000-0x00000000004A9000-memory.dmp
    Filesize

    676KB

  • memory/2772-67-0x0000000003910000-0x00000000039B9000-memory.dmp
    Filesize

    676KB

  • memory/2772-79-0x0000000000400000-0x00000000004A9000-memory.dmp
    Filesize

    676KB

  • memory/2868-68-0x0000000000400000-0x00000000004A9000-memory.dmp
    Filesize

    676KB

  • memory/2868-77-0x0000000000400000-0x00000000004A9000-memory.dmp
    Filesize

    676KB