Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    05-05-2024 10:14

General

  • Target

    8b0fc225ef0740507b3769245ba7fb437b938ef9ebdff303688084403f2ee5b0.exe

  • Size

    92KB

  • MD5

    932615f4bca0021f9be6c01a235ff499

  • SHA1

    a1d31b9ff1a6dcc47c1ca9601a78d9875a4ce6b8

  • SHA256

    8b0fc225ef0740507b3769245ba7fb437b938ef9ebdff303688084403f2ee5b0

  • SHA512

    c61453dab3f46fe38c24c237b397716579091aaddbfb55817d2c35c75619b472de0e4759115caa7eb91d9320b97e0224af213daef1587eacbba4873c724d747c

  • SSDEEP

    1536:/wSe+Zk78NR3dN5nPyyapmebn4ddJZeY86iLflLJYEIs67rxo:/Ve+a+3dN5fLK4ddJMY86ipmns6S

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 43 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1204
      • C:\Users\Admin\AppData\Local\Temp\8b0fc225ef0740507b3769245ba7fb437b938ef9ebdff303688084403f2ee5b0.exe
        "C:\Users\Admin\AppData\Local\Temp\8b0fc225ef0740507b3769245ba7fb437b938ef9ebdff303688084403f2ee5b0.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2412
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1652
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:2192
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c C:\Users\Admin\AppData\Local\Temp\$$a1314.bat
            3⤵
            • Deletes itself
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:2256
            • C:\Users\Admin\AppData\Local\Temp\8b0fc225ef0740507b3769245ba7fb437b938ef9ebdff303688084403f2ee5b0.exe
              "C:\Users\Admin\AppData\Local\Temp\8b0fc225ef0740507b3769245ba7fb437b938ef9ebdff303688084403f2ee5b0.exe"
              4⤵
              • Executes dropped EXE
              PID:2280
          • 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
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:2656
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2252
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:2592
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:2484
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:2680

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

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

            Filesize

            258KB

            MD5

            1cf9715a389ba4876cab7d395df4d645

            SHA1

            0a448c44716a1d819889dabbb4eb0300535a716f

            SHA256

            bac5d6a06de485f137512023b413935335ddb109b8c5ecc38972fcaa4a7de491

            SHA512

            c59f4a9f9a05c67c10a42ba3a33fa15106d844088ea38b598dfb6a75f2c031aaf6e0c63bc5c03fa5899da11872df2a04b8c8dc18073f101f49cc0fc3b82ac7be

          • C:\ProgramData\Package Cache\{ca67548a-5ebe-413a-b50c-4b9ceb6d66c6}\vcredist_x64.exe

            Filesize

            478KB

            MD5

            3e2d3392a9d3ae3ed27661f81e853478

            SHA1

            fa8c023a3bff75e89ed39f5d4bfb5693d818ca8b

            SHA256

            09da8a31b7f420b9e4ed6d02e698bcc12a4f3efa46a53d1492a241a5784d44a8

            SHA512

            27652a29d728b92995b8ce46b150cd14baf5b65789591085ef3fa959dbc99efaa071b7a014ccaabeb6e84cdea642769dc98a7a1684afcda9be82dbb0b8d3fa17

          • C:\Users\Admin\AppData\Local\Temp\$$a1314.bat

            Filesize

            722B

            MD5

            085ff1b73cf2e182eedcc63e89e622c6

            SHA1

            228e37f86d6f6673ed4a9dcfef1a243d5e5481f3

            SHA256

            9bd90a104a227054baec3a2debb98e866636f94df4750356621db6365f1d93f8

            SHA512

            ba7fdc39a328f716b1f1cb7685e84f402c706add157a706b05c7f110d39fecf24c00a8e6faf6980423a934f517c3a643726a14c04b024d090360e96f1f0b9f2e

          • C:\Users\Admin\AppData\Local\Temp\8b0fc225ef0740507b3769245ba7fb437b938ef9ebdff303688084403f2ee5b0.exe.exe

            Filesize

            59KB

            MD5

            dfc18f7068913dde25742b856788d7ca

            SHA1

            cbaa23f782c2ddcd7c9ff024fd0b096952a2b387

            SHA256

            ff4ac75c02247000da084de006c214d3dd3583867bd3533ba788e22734c7a2bf

            SHA512

            d0c7ec1dae41a803325b51c12490c355ed779d297daa35247889950491e52427810132f0829fc7ffa3022f1a106f4e4ba78ed612223395313a6f267e9ab24945

          • C:\Windows\Logo1_.exe

            Filesize

            33KB

            MD5

            030c9aac5dcb76c5a06bf0ac2cdecfb0

            SHA1

            18f137b0ad656c47efffbc845449b5e80294bfd2

            SHA256

            815990d99ef2e24393dfdaac82ed03ab38096386d327ae3a8f670c63e02dbf79

            SHA512

            4db5e2a3c0e3d70003437fd15eebe90bb4574450b600bcac0fb52842c646fe5c098912ad479cf3ec4a490c985ba837e37ed5bdeec5db2ca57b16360290e0cce5

          • F:\$RECYCLE.BIN\S-1-5-21-2297530677-1229052932-2803917579-1000\_desktop.ini

            Filesize

            8B

            MD5

            1b16d2dbd4281ce4e4e5729c608dcb0b

            SHA1

            851e624080ba5598edb808d4b30fe2d74999ce18

            SHA256

            c9e46fb51d0588ca1e48ca66731e11992770b9b74a982f9bdbb6ce5b5b75d549

            SHA512

            cd1c4cf7c7871cb48ce735226b25f689b340037e6c992441e566161de7fca7410762d1a0c2670ee4b6546f7ee854d3219e0e2315c3e0387d9bbe3f08076b5a59

          • memory/1204-27-0x0000000002A80000-0x0000000002A81000-memory.dmp

            Filesize

            4KB

          • memory/2412-0-0x0000000000400000-0x000000000043F000-memory.dmp

            Filesize

            252KB

          • memory/2412-17-0x0000000000400000-0x000000000043F000-memory.dmp

            Filesize

            252KB

          • memory/2656-30-0x0000000000400000-0x000000000043F000-memory.dmp

            Filesize

            252KB

          • memory/2656-18-0x0000000000400000-0x000000000043F000-memory.dmp

            Filesize

            252KB

          • memory/2656-3317-0x0000000000400000-0x000000000043F000-memory.dmp

            Filesize

            252KB

          • memory/2656-4140-0x0000000000400000-0x000000000043F000-memory.dmp

            Filesize

            252KB