Resubmissions

05-11-2024 03:18

241105-dtxrgatbpg 10

Analysis

  • max time kernel
    143s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    05-11-2024 03:18

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
  • 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.

  • UPX packed file 4 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 10 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
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2316
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\92833f9b-d823-4eff-b929-d4b6316c5656" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      • System Location Discovery: System Language Discovery
      PID:2452
    • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
      "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2564
      • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
        "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --ForNetRes "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1 IsNotAutoStart IsNotTask
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1336
        • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
          "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Service 1336 "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:2892
      • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
        "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Service 2564 "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:1156

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    1KB

    MD5

    67e486b2f148a3fca863728242b6273e

    SHA1

    452a84c183d7ea5b7c015b597e94af8eef66d44a

    SHA256

    facaf1c3a4bf232abce19a2d534e495b0d3adc7dbe3797d336249aa6f70adcfb

    SHA512

    d3a37da3bb10a9736dc03e8b2b49baceef5d73c026e2077b8ebc1b786f2c9b2f807e0aa13a5866cf3b3cafd2bc506242ef139c423eaffb050bbb87773e53881e

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

    Filesize

    436B

    MD5

    971c514f84bba0785f80aa1c23edfd79

    SHA1

    732acea710a87530c6b08ecdf32a110d254a54c8

    SHA256

    f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895

    SHA512

    43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58

  • 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

    793ccb851324c963784d0360f05aaa36

    SHA1

    af1421dd9ac9676a2cdc7bae9600d1010cb41c2c

    SHA256

    a669450f561c4adf3bc1afea7a887e9d0e2fee71b361cfa07a27911b87d305cd

    SHA512

    4c95735227893690974a38a607a285c6a2e4ea975fd649da33c2760f91ddcfded1be18221c2e840c84b56cf8d4649484588265c03d8b91ce1ea8db17467dc1f7

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

    Filesize

    342B

    MD5

    881e7f5324ec8e99e3370541b428b70e

    SHA1

    eb99b42b78759f05b9ed494c584a0c6c4dc1c6c3

    SHA256

    7b3f6d3fd4e1e8f6d2d3e08ea27546ba4eac508860cb5a2f916121baa86149dd

    SHA512

    2fe2d52565808ceceea58a3682f2efccf20c558adb1621ce6518ccc8fbe7a34678f2a386ca9e451f22fbae0f9612b44473517bbc73e661002f112ad1968ba03c

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

    Filesize

    170B

    MD5

    f4051ac806203c92c46315622157acb2

    SHA1

    6da677435525888e2ccff13d0c5da0ab62db745b

    SHA256

    d1b7fa3018e185be47fb1d25db9c38ca1714954082bcc182189c4bc0d63efbfd

    SHA512

    6f96e94c5ba6e04528ec67b103e878df6009569b2dd18b387c51e1765f610307252c917837c784dd0286031f5bfb263fdfc50ed9f9c50af8971c27c8227222c2

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

    Filesize

    242B

    MD5

    a1154c2ba40bebb265ffe833c12519c1

    SHA1

    840eb4049c1f2fd54153b85f618508ce5bfda132

    SHA256

    e22e8c9f1c78e065d321962db82ba13d19f10086c7cef311fdf9ae38fcc25c8b

    SHA512

    524498d522247bb1b3f1e711dbaabc79b86f020245334865d2680530fb88ca263678c0f6733edb5b958aa0f4f0771d53332c7b8fecd3cc3d414b7eed47e3e9e2

  • C:\Users\Admin\AppData\Local\92833f9b-d823-4eff-b929-d4b6316c5656\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe

    Filesize

    669KB

    MD5

    ead18f3a909685922d7213714ea9a183

    SHA1

    1270bd7fd62acc00447b30f066bb23f4745869bf

    SHA256

    5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18

    SHA512

    6e532d9c3d186e4dac38823ae9152056346e283613f0caf088b21a1b3e5f4f6cf3bad8c407168b1072895a386e3be0b8c11ad1cb326d3d3ff0eb8562052def91

  • C:\Users\Admin\AppData\Local\Temp\Cab958B.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarEE0.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • memory/1156-86-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/1336-84-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/1336-72-0x00000000036A0000-0x0000000003749000-memory.dmp

    Filesize

    676KB

  • memory/2316-25-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2316-26-0x00000000002B0000-0x00000000003B0000-memory.dmp

    Filesize

    1024KB

  • memory/2316-3-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/2316-0-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2316-27-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/2316-23-0x0000000003D90000-0x0000000003E39000-memory.dmp

    Filesize

    676KB

  • memory/2316-2-0x00000000002B0000-0x00000000003B0000-memory.dmp

    Filesize

    1024KB

  • memory/2564-49-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2564-30-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2564-28-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2564-48-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2564-46-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2564-85-0x00000000027A0000-0x0000000002849000-memory.dmp

    Filesize

    676KB

  • memory/2564-31-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2564-87-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2892-83-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB