Analysis

  • max time kernel
    0s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-07-2024 00:29

General

  • Target

    98c4e27dd7acf6454aeba5e72dabe3cc7bfa4756b9efbe4fed7cf276a7dfe63b.exe

  • Size

    1.4MB

  • MD5

    70cd455d964428878ffb0bca7502ac84

  • SHA1

    5c900e0c88a31a3dd621ae9e026d3f6ce7e4a551

  • SHA256

    98c4e27dd7acf6454aeba5e72dabe3cc7bfa4756b9efbe4fed7cf276a7dfe63b

  • SHA512

    8ec39ca6600bc241de13b98175ef278325272c8ece6fdcbab0e65831f2ee642ab7c06c7635038839c5d69a65a382d1a3945913a33e448151eec219d580ff6056

  • SSDEEP

    24576:S7SUWoDtOo8aUYoj1thwbNEHfndEGJMvw:S7z8hjrhqNWVEN

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Executes dropped EXE 4 IoCs
  • UPX packed file 7 IoCs

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

  • Enumerates connected drives 3 TTPs 20 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 3 IoCs
  • Drops file in Windows directory 3 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies registry class 12 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\98c4e27dd7acf6454aeba5e72dabe3cc7bfa4756b9efbe4fed7cf276a7dfe63b.exe
    "C:\Users\Admin\AppData\Local\Temp\98c4e27dd7acf6454aeba5e72dabe3cc7bfa4756b9efbe4fed7cf276a7dfe63b.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:3244
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a5052.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4984
      • C:\Users\Admin\AppData\Local\Temp\98c4e27dd7acf6454aeba5e72dabe3cc7bfa4756b9efbe4fed7cf276a7dfe63b.exe
        "C:\Users\Admin\AppData\Local\Temp\98c4e27dd7acf6454aeba5e72dabe3cc7bfa4756b9efbe4fed7cf276a7dfe63b.exe"
        3⤵
        • Executes dropped EXE
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3044
        • C:\Users\Admin\AppData\Local\Temp\98c4e27dd7acf6454aeba5e72dabe3cc7bfa4756b9efbe4fed7cf276a7dfe63bSrv.exe
          C:\Users\Admin\AppData\Local\Temp\98c4e27dd7acf6454aeba5e72dabe3cc7bfa4756b9efbe4fed7cf276a7dfe63bSrv.exe
          4⤵
          • Executes dropped EXE
          • Drops file in Program Files directory
          • Suspicious use of WriteProcessMemory
          PID:3448
          • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
            "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:1596
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe"
              6⤵
              • Modifies Internet Explorer settings
              PID:4336
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4336 CREDAT:17410 /prefetch:2
                7⤵
                  PID:336
                • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4336 CREDAT:82950 /prefetch:2
                  7⤵
                    PID:4236
            • C:\USERS\ADMIN\APPDATA\LOCAL\TEMP\98C4E27DD7ACF6454AEBA5E72DABE3CC7BFA4756B9EFBE4FED7CF276A7DFE63B.EXE
              C:\USERS\ADMIN\APPDATA\LOCAL\TEMP\98C4E27DD7ACF6454AEBA5E72DABE3CC7BFA4756B9EFBE4FED7CF276A7DFE63B.EXE
              4⤵
                PID:2080
                • C:\USERS\ADMIN\APPDATA\LOCAL\TEMP\98C4E27DD7ACF6454AEBA5E72DABE3CC7BFA4756B9EFBE4FED7CF276A7DFE63BSrv.exe
                  C:\USERS\ADMIN\APPDATA\LOCAL\TEMP\98C4E27DD7ACF6454AEBA5E72DABE3CC7BFA4756B9EFBE4FED7CF276A7DFE63BSrv.exe
                  5⤵
                    PID:2300
                    • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
                      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
                      6⤵
                        PID:4044
                        • C:\Program Files\Internet Explorer\iexplore.exe
                          "C:\Program Files\Internet Explorer\iexplore.exe"
                          7⤵
                            PID:944
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 820
                      4⤵
                      • Program crash
                      PID:3004
                • C:\Windows\Logo1_.exe
                  C:\Windows\Logo1_.exe
                  2⤵
                  • Executes dropped EXE
                  • Enumerates connected drives
                  • Drops file in Windows directory
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of WriteProcessMemory
                  PID:4684
                  • C:\Windows\SysWOW64\net.exe
                    net stop "Kingsoft AntiVirus Service"
                    3⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1412
                    • C:\Windows\SysWOW64\net1.exe
                      C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                      4⤵
                        PID:3652
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3044 -ip 3044
                  1⤵
                    PID:1140

                  Network

                  MITRE ATT&CK Matrix ATT&CK v13

                  Defense Evasion

                  Modify Registry

                  1
                  T1112

                  Discovery

                  Query Registry

                  1
                  T1012

                  Peripheral Device Discovery

                  1
                  T1120

                  System Information Discovery

                  1
                  T1082

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  • C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe
                    Filesize

                    251KB

                    MD5

                    41e5bbeb9a27c24b39dfcfcd41663134

                    SHA1

                    8a32317850b77cc92ae20411009a3895aef718ab

                    SHA256

                    72d2ac5cecc3741d7657a400645a90219822a2c91aa04bef827f837a57e0ac14

                    SHA512

                    9fb405ed3ea22d0bdc23474fb4727c38470f3509ac3bf754ebcde8fc6a7aea29bbe550c9245efb5c25e54554a92f370e78d0de8b8b8e319b4b57232ff7e1a2fd

                  • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
                    Filesize

                    55KB

                    MD5

                    ff5e1f27193ce51eec318714ef038bef

                    SHA1

                    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

                    SHA256

                    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

                    SHA512

                    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

                  • C:\Program Files\7-Zip\7z.exe
                    Filesize

                    570KB

                    MD5

                    bdddc1b2cdf76e86485d445b70620389

                    SHA1

                    add7f64d51251409f091936a9185e5a3f0262df6

                    SHA256

                    a70a4174c0711702fbc334a524e5930c22b58e0de8c11f2d47ea989cc9b7b10d

                    SHA512

                    0f32a125a06241c8b831fb45e25c099c33bb71df5e299cf5a87070bdc875cc714ba7d9d7165f138dbed8268c6e2a0aadb3069ac24eb25d825c8a1e12982e69e9

                  • C:\ProgramData\Package Cache\{63880b41-04fc-4f9b-92c4-4455c255eb8c}\windowsdesktop-runtime-8.0.2-win-x64.exe
                    Filesize

                    491KB

                    MD5

                    106e7eb34484ad2a9f79f6adb7731b23

                    SHA1

                    8660f509813502058c4190fb4bab9edae0bd4732

                    SHA256

                    e8492e6ab32bfdc87d567db11e350c4d754f94d0375d060f61119eefbbc4a345

                    SHA512

                    9caac26d422a6929cfd73a103d4e99f3a21d6f12054e14c362254392a6e31ad9de612a108d2e6d48184e6a394a504ca6b9bd570f800d0ee3fb108ff2063deebe

                  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
                    Filesize

                    471B

                    MD5

                    4002e8b12817dfbab01588c4f44e6ee3

                    SHA1

                    cd4af5e44b05b1af7218bc8b2a002f471c480fa6

                    SHA256

                    cc39772f0b25c3383b5f2e37ff9b29bdbc27193366d8d6422a8f0b81801d6ab9

                    SHA512

                    b42ef3ac0dddb2563e6c4d5d49042d9da7a5f03718cbcc59d2025b842efd0b64fda490571459fdcfb49acc0b80f15edee68a510598fe60b0ae9151c01c615404

                  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
                    Filesize

                    404B

                    MD5

                    7269bcac2fbfb25a926a1790031f95d4

                    SHA1

                    dd8f3f3a9669ccde12b67a8bf03120775127b651

                    SHA256

                    c07c29b4b9168890be8813dbdbf684abc7132598e3cf95d56bd4f0d06d546545

                    SHA512

                    b463d3531bf28a7f35d90b3f87b86e63f1be3e9e3bc4924fa0b8ec5fd2a4ec6da45a39a304d7a4f207c328dd5ae0bb00b6c9fd7878fa8b257ceebac6f8cfdfd6

                  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\VLW1SL5J\suggestions[1].en-US
                    Filesize

                    17KB

                    MD5

                    5a34cb996293fde2cb7a4ac89587393a

                    SHA1

                    3c96c993500690d1a77873cd62bc639b3a10653f

                    SHA256

                    c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

                    SHA512

                    e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

                  • C:\Users\Admin\AppData\Local\Temp\$$a5052.bat
                    Filesize

                    722B

                    MD5

                    81bd18b039bd8f262f054e53f19f1d65

                    SHA1

                    9f70fb17effaeef838b231fde2d2aaa7b32fb97c

                    SHA256

                    81d107dd64186857db95b0597742d1157a29650bdb35fe91cb3120494439c2ae

                    SHA512

                    3d2b2604046371a974134f8b212f9d15e7ac4b772705993fcc5bc49be70aeacdf2edf66ddf6311e0379aa236f7c0e587ebb6fb80b49bbbe385c03c3b2ef564ee

                  • C:\Users\Admin\AppData\Local\Temp\98c4e27dd7acf6454aeba5e72dabe3cc7bfa4756b9efbe4fed7cf276a7dfe63b.exe.exe
                    Filesize

                    1.4MB

                    MD5

                    80384c0b7c8cd050ddc12bf134394ee7

                    SHA1

                    a92caed5099fa6f80b7f12701c6c782df3fff8e2

                    SHA256

                    50a93b7a23180a575cf8c7663cec7434b893d4149c1b5b5ef23f241ab916c0c5

                    SHA512

                    924384cd625fdfd22d2386b6d082c6b0e13028399bc18bcbd387c7de12550b6f99fe1f91c82ca148fbccedf86c5173023841ef284d25c27001eeffd3f44544ae

                  • C:\Windows\Logo1_.exe
                    Filesize

                    26KB

                    MD5

                    ae8fa257ab75cde9b7ee813762663977

                    SHA1

                    9eb4f9d9f4f505ff0f91955ebcfc0db4c505961e

                    SHA256

                    16d8783f98e7b2a4decc7df42a7957c90fbb1d6017439c667f5b104e27f5399e

                    SHA512

                    22bd094fe05cadef25f64d33686e3d3992cdf51f795354c88f240388289c719420875bd5212a01b3fd4a180f384359dab7b3950e31b386d31310bd08c71528db

                  • F:\$RECYCLE.BIN\S-1-5-21-4124900551-4068476067-3491212533-1000\_desktop.ini
                    Filesize

                    8B

                    MD5

                    87cbd7a2d7bdb443a36ecfb46e39db18

                    SHA1

                    12aac09be13003e857809ea9434c76126ac39bbf

                    SHA256

                    fe5e34894849bd441c429cfd17e62e06b828a82b04c9f0e7cadd884d78b326e1

                    SHA512

                    75b0b484285909c577f97dd2b748e8b6e905b2a37dc8a569519325e67cac8b8932fbbd52c754df787e2a6326a9ca575e5d37372a9635718a310c642457ed17e0

                  • memory/1596-34-0x0000000000400000-0x000000000042E000-memory.dmp
                    Filesize

                    184KB

                  • memory/1596-30-0x0000000000400000-0x000000000042E000-memory.dmp
                    Filesize

                    184KB

                  • memory/1596-32-0x0000000000400000-0x000000000042E000-memory.dmp
                    Filesize

                    184KB

                  • memory/1596-33-0x00000000006B0000-0x00000000006B1000-memory.dmp
                    Filesize

                    4KB

                  • memory/2080-46-0x0000000000400000-0x000000000056C000-memory.dmp
                    Filesize

                    1.4MB

                  • memory/2300-49-0x0000000000400000-0x000000000042E000-memory.dmp
                    Filesize

                    184KB

                  • memory/2300-43-0x0000000000400000-0x000000000042E000-memory.dmp
                    Filesize

                    184KB

                  • memory/3044-53-0x0000000000400000-0x000000000056C000-memory.dmp
                    Filesize

                    1.4MB

                  • memory/3044-19-0x0000000000400000-0x000000000056C000-memory.dmp
                    Filesize

                    1.4MB

                  • memory/3244-9-0x0000000000400000-0x0000000000434000-memory.dmp
                    Filesize

                    208KB

                  • memory/3244-0-0x0000000000400000-0x0000000000434000-memory.dmp
                    Filesize

                    208KB

                  • memory/3448-24-0x0000000000400000-0x000000000042E000-memory.dmp
                    Filesize

                    184KB

                  • memory/3448-25-0x0000000000480000-0x000000000048F000-memory.dmp
                    Filesize

                    60KB

                  • memory/4044-51-0x00000000005B0000-0x00000000005B1000-memory.dmp
                    Filesize

                    4KB

                  • memory/4684-79-0x0000000000400000-0x0000000000434000-memory.dmp
                    Filesize

                    208KB

                  • memory/4684-75-0x0000000000400000-0x0000000000434000-memory.dmp
                    Filesize

                    208KB

                  • memory/4684-60-0x0000000000400000-0x0000000000434000-memory.dmp
                    Filesize

                    208KB

                  • memory/4684-1119-0x0000000000400000-0x0000000000434000-memory.dmp
                    Filesize

                    208KB

                  • memory/4684-1286-0x0000000000400000-0x0000000000434000-memory.dmp
                    Filesize

                    208KB

                  • memory/4684-37-0x0000000000400000-0x0000000000434000-memory.dmp
                    Filesize

                    208KB

                  • memory/4684-4852-0x0000000000400000-0x0000000000434000-memory.dmp
                    Filesize

                    208KB

                  • memory/4684-11-0x0000000000400000-0x0000000000434000-memory.dmp
                    Filesize

                    208KB

                  • memory/4684-5291-0x0000000000400000-0x0000000000434000-memory.dmp
                    Filesize

                    208KB