Analysis

  • max time kernel
    144s
  • max time network
    157s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    24-06-2021 04:00

General

  • Target

    31b94c5a94aa8ce7e187360b0dc702b473d1c5d498d4de26f137b272ccbadaed.exe

  • Size

    315KB

  • MD5

    99246958839423b9af0d2ea872c505d9

  • SHA1

    6aba8c858610174bcff3c9cee57d8f7bc5d11564

  • SHA256

    31b94c5a94aa8ce7e187360b0dc702b473d1c5d498d4de26f137b272ccbadaed

  • SHA512

    b72cc152f2bb3799d678b4b371a85167ba441483a17d9a1c736df2a111abb0ad4ef7494939ed557ab25931a7fa35db52d0211f6899ed5a92f7e98756dfc0337e

Malware Config

Extracted

Family

gozi_rm3

Attributes
  • build

    300974

  • exe_type

    loader

Extracted

Family

gozi_rm3

Botnet

202106191

C2

https://gogorobest.xyz

Attributes
  • build

    300974

  • exe_type

    loader

  • non_target_locale

    RU

  • server_id

    12

  • url_path

    index.htm

rsa_pubkey.plain
serpent.plain

Signatures

  • Gozi RM3

    A heavily modified version of Gozi using RM3 loader.

  • Modifies Internet Explorer settings 1 TTPs 64 IoCs
  • Suspicious use of FindShellTrayWindow 8 IoCs
  • Suspicious use of SetWindowsHookEx 32 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\31b94c5a94aa8ce7e187360b0dc702b473d1c5d498d4de26f137b272ccbadaed.exe
    "C:\Users\Admin\AppData\Local\Temp\31b94c5a94aa8ce7e187360b0dc702b473d1c5d498d4de26f137b272ccbadaed.exe"
    1⤵
      PID:3904
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3572
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3572 CREDAT:82945 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1340
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2628
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2628 CREDAT:82945 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:2348
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2704
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2704 CREDAT:82945 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:3836
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2196
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2196 CREDAT:82945 /prefetch:2
        2⤵
        • Suspicious use of SetWindowsHookEx
        PID:1724
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:208
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:208 CREDAT:82945 /prefetch:2
        2⤵
        • Suspicious use of SetWindowsHookEx
        PID:3640
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2288
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2288 CREDAT:82945 /prefetch:2
        2⤵
        • Suspicious use of SetWindowsHookEx
        PID:2788
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4012
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4012 CREDAT:82945 /prefetch:2
        2⤵
        • Suspicious use of SetWindowsHookEx
        PID:1664
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2664
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2664 CREDAT:82945 /prefetch:2
        2⤵
        • Suspicious use of SetWindowsHookEx
        PID:2652

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\103621DE9CD5414CC2538780B4B75751
      MD5

      0675c0d0da9a6eac284a10c2ddda636a

      SHA1

      6c7856ef6be6b6fce283423cf9d48e7d101d7fa7

      SHA256

      7852903b2b3bd59c816aa0a74272a4c51bae13f38bb72a67f3fd04b50d061b50

      SHA512

      09a3f652bd943a7cc3def436c9fe769bf5c30499b78d63598fc2fc23fa15932a08d545354129fc346133efbda456edfe8d4a10bab5a50abe7d132c2228815232

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\644B8874112055B5E195ECB0E8F243A4
      MD5

      33903bc82111f229f0d3253b54e7dc56

      SHA1

      3c251b0440960195337ed9608a786a5aa44adea5

      SHA256

      a5599d4d4c3755410c3f394e1351e788375e8e487b9b4525e2e671ce9a9262c5

      SHA512

      a374919bb96e04dcd17038ef8638c22602e8969e2b6ace2060beec85dc39781bfcaa1bf31ab54898e1279d05c71d37a78d92c43d3679ce1df890d08799419795

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\9E1A1F5F9038B3A725570AC643199BE3
      MD5

      1f2bc239e5eaee908952ee78fc85d40a

      SHA1

      1c6ec44ebf112b4114d88a4cb9481d8256560bcc

      SHA256

      58cc42d2628227c13950db87d60e23784bcef3e10be7ab198afc854923feee15

      SHA512

      8b1a1d18693e94a75bf09aa2de7e832ad1caf08eb558897fcfa5ba5c3c5b3111dd027171bfe6f695558ba2ae2e8e13f98d9389dd8282d56b6f6244385e26ba3a

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\103621DE9CD5414CC2538780B4B75751
      MD5

      fdef5c11ee92b462052c1c2facf26aaf

      SHA1

      92b66da10004c8f3a999472632d44f2955616e61

      SHA256

      9904144e4ebbc8f5a0cd15bd6d6809a86c1eabc36e380671408945348a589a5f

      SHA512

      57615bbf82c8e0b11d1ee15b3ab0a6a654e39e8d892bfa647a2f793238f843075f4a580d2b7565d27967fba8bf15e5830dca36947102439f66ad40d0b8621007

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\644B8874112055B5E195ECB0E8F243A4
      MD5

      d01fb56de6abe5685bbfb53ba3141cc7

      SHA1

      d511a76d72841814c22e3981709ab7800e3c97ea

      SHA256

      fbade0dcd6b3625d5a9c3cfa9ac5ab62ccc72602689d1b3ad28eb405183bfb28

      SHA512

      3375b2c0216fc74dede95a29303926d6e04ca316c74f86b2688e7717b4ba21a0fac30645a68988260b1a834fcdbad8155362f2cc58d314206eccd56a94422170

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\9E1A1F5F9038B3A725570AC643199BE3
      MD5

      ea28d40a1076ccf0ac5c3df1519adb1e

      SHA1

      77d71cfaaf58be98894798d24404ee5f567b94e6

      SHA256

      ddfbde88bca64727ba692fc7f186391f15e0f444dc0eeb36c7600816a8234d14

      SHA512

      06d1323145a7f59c7e1b5a1f16c240d947af7042f2e64c2923bfcedf0976832bc8382a807a6881474d0263f3dc37e9d1815aad40e318070f61359dfed1349719

    • memory/208-133-0x00007FF97CB60000-0x00007FF97CBCB000-memory.dmp
      Filesize

      428KB

    • memory/1340-120-0x0000000000000000-mapping.dmp
    • memory/1664-138-0x0000000000000000-mapping.dmp
    • memory/1724-132-0x0000000000000000-mapping.dmp
    • memory/2196-131-0x00007FF97CB60000-0x00007FF97CBCB000-memory.dmp
      Filesize

      428KB

    • memory/2288-135-0x00007FF97CB60000-0x00007FF97CBCB000-memory.dmp
      Filesize

      428KB

    • memory/2348-122-0x0000000000000000-mapping.dmp
    • memory/2628-121-0x00007FF97BEB0000-0x00007FF97BF1B000-memory.dmp
      Filesize

      428KB

    • memory/2652-140-0x0000000000000000-mapping.dmp
    • memory/2664-139-0x00007FF97D330000-0x00007FF97D39B000-memory.dmp
      Filesize

      428KB

    • memory/2704-129-0x00007FF97BEB0000-0x00007FF97BF1B000-memory.dmp
      Filesize

      428KB

    • memory/2788-136-0x0000000000000000-mapping.dmp
    • memory/3572-119-0x00007FF96C9B0000-0x00007FF96CA1B000-memory.dmp
      Filesize

      428KB

    • memory/3640-134-0x0000000000000000-mapping.dmp
    • memory/3836-130-0x0000000000000000-mapping.dmp
    • memory/3904-114-0x0000000000560000-0x0000000000570000-memory.dmp
      Filesize

      64KB

    • memory/3904-118-0x0000000001000000-0x00000000014EC000-memory.dmp
      Filesize

      4.9MB

    • memory/3904-117-0x0000000000400000-0x00000000004AE000-memory.dmp
      Filesize

      696KB

    • memory/4012-137-0x00007FF97CB60000-0x00007FF97CBCB000-memory.dmp
      Filesize

      428KB