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Analysis

  • max time kernel
    149s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/08/2024, 22:59

General

  • Target

    91b929017e801c95d048133c80f0f22907aa4531732155300551e786d25485bc.exe

  • Size

    573KB

  • MD5

    e85a10cf1c849dcccee64a8c51ed7d67

  • SHA1

    38a2dc2635d8362ccf5b28d2f1204011bf226d84

  • SHA256

    91b929017e801c95d048133c80f0f22907aa4531732155300551e786d25485bc

  • SHA512

    50104c7ae5e0fae75aaa755e1edf51fa306ac290ab3ad9e9829d160d8ac6123a0d81408b60143d363dedbaba8f97861513b3a0f82743ea375be0b94529eeed03

  • SSDEEP

    6144:DuJpE7cV3iwbAFRWAbd4nf0H05yqE6Hl0ChW0+ksllAXBu0lWGWUJJQ4t0BHQQfu:l7a3iwbihym2g7XO3LWUQfh4Co

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3396
      • C:\Users\Admin\AppData\Local\Temp\91b929017e801c95d048133c80f0f22907aa4531732155300551e786d25485bc.exe
        "C:\Users\Admin\AppData\Local\Temp\91b929017e801c95d048133c80f0f22907aa4531732155300551e786d25485bc.exe"
        2⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4132
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$aBDD2.bat
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1032
          • C:\Users\Admin\AppData\Local\Temp\91b929017e801c95d048133c80f0f22907aa4531732155300551e786d25485bc.exe
            "C:\Users\Admin\AppData\Local\Temp\91b929017e801c95d048133c80f0f22907aa4531732155300551e786d25485bc.exe"
            4⤵
            • Executes dropped EXE
            PID:2520
        • C:\Windows\Logo1_.exe
          C:\Windows\Logo1_.exe
          3⤵
          • Executes dropped EXE
          • Enumerates connected drives
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3996
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1352
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:1324

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files\7-Zip\7z.exe

      Filesize

      573KB

      MD5

      e85a10cf1c849dcccee64a8c51ed7d67

      SHA1

      38a2dc2635d8362ccf5b28d2f1204011bf226d84

      SHA256

      91b929017e801c95d048133c80f0f22907aa4531732155300551e786d25485bc

      SHA512

      50104c7ae5e0fae75aaa755e1edf51fa306ac290ab3ad9e9829d160d8ac6123a0d81408b60143d363dedbaba8f97861513b3a0f82743ea375be0b94529eeed03

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

      Filesize

      639KB

      MD5

      4baecb97e22493a7726fa776cd11e9b6

      SHA1

      af2dad28d17ec1220505a475f669bf2663893e0d

      SHA256

      eed9c9a08f13ef7be401e0ce827001aa9849769b16dce74012e3bc6925c4fa5b

      SHA512

      75b604ac8a896dcd06f87b35acd06eb0350b5f624cf325bb7ec1e388491f00c7e79c735a4b37468b1c46f20f34c257406f156ba5490196107b8b5a67364cdb84

    • C:\Users\Admin\AppData\Local\Temp\$$aBDD2.bat

      Filesize

      722B

      MD5

      5f6f6075a6c9706c9697f8d2e4b3a6b0

      SHA1

      e60acc04ed61551cdeb59c38ae3e895f650855d1

      SHA256

      8ddc360836d412c3e5f8b40a592eb21ff797acfd5032a19b3fffc4afa3516e01

      SHA512

      646f75a05ef82083733a467fe46c25955305323377827af38efa086f683b6679623f6950a5cd46085258514a70fbf31199abd9ac6a0183cff13c8edc27721773

    • C:\Users\Admin\AppData\Local\Temp\91b929017e801c95d048133c80f0f22907aa4531732155300551e786d25485bc.exe.exe

      Filesize

      544KB

      MD5

      9a1dd1d96481d61934dcc2d568971d06

      SHA1

      f136ef9bf8bd2fc753292fb5b7cf173a22675fb3

      SHA256

      8cebb25e240db3b6986fcaed6bc0b900fa09dad763a56fb71273529266c5c525

      SHA512

      7ac1581f8a29e778ba1a1220670796c47fa5b838417f8f635e2cb1998a01515cff3ee57045dacb78a8ec70d43754b970743aba600379fe6d9481958d32d8a5aa

    • C:\Windows\Logo1_.exe

      Filesize

      29KB

      MD5

      7df4cd4ea9e18ac4eac10b27f9b1befc

      SHA1

      cf3502a223bd7ad9f15dc01f765bdc55304b228d

      SHA256

      d3a2638f1ce0bfb967235ed43cb85a5d429a462d5231af8abee7219f7b8b3ae3

      SHA512

      e7f8467655f3eab4aedbc933740a502ad95525007c27cd0ab923c8a65ce7419fdf895070e593dc5851641bc256b6881dbb728520be892f1b96a6ccd525c8bf33

    • F:\$RECYCLE.BIN\S-1-5-21-857544305-989156968-2929034274-1000\_desktop.ini

      Filesize

      8B

      MD5

      34f94fcbc939d25f54e986fe97a87522

      SHA1

      dcde2a11c5631b5dbd93ce97e503d0ff42a6f341

      SHA256

      47f454cb045cab0f9ee28683942faddf984b88986cb761e4caa639f91ac4cdd7

      SHA512

      aad5abbdc495f19e0997d67d3daad417eb18f3e3061de2515d3870cc6c2c417aef366de938c8c98d3b62b81ec44f5a16e1227118e28b4624c99b2c1546e1c678

    • memory/3996-27-0x0000000000400000-0x0000000000436000-memory.dmp

      Filesize

      216KB

    • memory/3996-20-0x0000000000400000-0x0000000000436000-memory.dmp

      Filesize

      216KB

    • memory/3996-34-0x0000000000400000-0x0000000000436000-memory.dmp

      Filesize

      216KB

    • memory/3996-37-0x0000000000400000-0x0000000000436000-memory.dmp

      Filesize

      216KB

    • memory/3996-10-0x0000000000400000-0x0000000000436000-memory.dmp

      Filesize

      216KB

    • memory/3996-1234-0x0000000000400000-0x0000000000436000-memory.dmp

      Filesize

      216KB

    • memory/3996-4785-0x0000000000400000-0x0000000000436000-memory.dmp

      Filesize

      216KB

    • memory/3996-5230-0x0000000000400000-0x0000000000436000-memory.dmp

      Filesize

      216KB

    • memory/4132-0-0x0000000000400000-0x0000000000436000-memory.dmp

      Filesize

      216KB

    • memory/4132-9-0x0000000000400000-0x0000000000436000-memory.dmp

      Filesize

      216KB