Analysis

  • max time kernel
    42s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 21:38

General

  • Target

    9d6450dac3f8b94f7554ce98e00599d4dd9d2370b98047afd7cf2a3ca555e0fd.exe

  • Size

    4.4MB

  • MD5

    782a75a77dad9e7264038411ae5aa029

  • SHA1

    003cbb706429abea9d30a7871a59c92b46fcfdbd

  • SHA256

    9d6450dac3f8b94f7554ce98e00599d4dd9d2370b98047afd7cf2a3ca555e0fd

  • SHA512

    3f1160c5b05582d949209cc9ca5df04e3b45f054f9a086f81b57eb520e87280773c2e4ad5441de4e9a9dd5b66e75f2dfcccefe04294765399b31d62bb756458b

  • SSDEEP

    98304:zqmspKx7EOkpthCzP5NbuOBqFuZspsdo:emDP5ZZspb

Malware Config

Signatures

  • Registers COM server for autorun 1 TTPs 4 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops Chrome extension 3 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 8 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 8 IoCs
  • Modifies Internet Explorer settings 1 TTPs 8 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9d6450dac3f8b94f7554ce98e00599d4dd9d2370b98047afd7cf2a3ca555e0fd.exe
    "C:\Users\Admin\AppData\Local\Temp\9d6450dac3f8b94f7554ce98e00599d4dd9d2370b98047afd7cf2a3ca555e0fd.exe"
    1⤵
    • Loads dropped DLL
    • Drops Chrome extension
    • Installs/modifies Browser Helper Object
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:864
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\GoSave\lHwp67iVcASbaq.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:816
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\GoSave\lHwp67iVcASbaq.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:1156

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\GoSave\lHwp67iVcASbaq.dat

    Filesize

    4KB

    MD5

    922c0338c8406259205300aab6892692

    SHA1

    f6c02480bc30bd65b8f73d54bd191da0ece68020

    SHA256

    087157d95cf93b6dda0546ff3eda884c19751ffb8d91477028a3f50271e060d0

    SHA512

    d4b8259a493a0be2d01e840b3b91b5caf732668bffa8cbf48ac05a22c923b7bd4c8505f1b27c1a2dc0a9ce8aa2451a6a9ff1bc39adc3d5dba158ade9295876d6

  • C:\Program Files (x86)\GoSave\lHwp67iVcASbaq.tlb

    Filesize

    3KB

    MD5

    e3ab22d8beac0180520ab5289a64419b

    SHA1

    1456ba2c78b293e5a80185fefdf05f5dbe424937

    SHA256

    0d3342857b67678dd76e6a24e137f0d75ba399bb48bf5095d7e4f7dfa0bbe416

    SHA512

    c04163026ffa1c6fab34b4fdbf23702148c7c2a31dd356d26f9541027db078b6433aff3a5f749a209a3acbcf3a853a9b5f77984540e21be1f823ce92bcbfc4bf

  • C:\Program Files (x86)\GoSave\lHwp67iVcASbaq.x64.dll

    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • \Program Files (x86)\GoSave\lHwp67iVcASbaq.dll

    Filesize

    738KB

    MD5

    49961c7c9a7aef57f49adf50d1c810f6

    SHA1

    fc2078aeff5d5abee27c9e8a500cb2d6ae755b05

    SHA256

    c80abdc502d18db54137edc2680a498402c765999814b7fe1b2a7b69a64ce846

    SHA512

    8ad2c3dbd3b4390e4c49561f25ff2acdd4ab4468074e213f3efc81a598f71620e8f21fc87114623a6c0509997e47e1c4f5ffe703c7421ae313f7ba536df2772f

  • \Program Files (x86)\GoSave\lHwp67iVcASbaq.x64.dll

    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • \Program Files (x86)\GoSave\lHwp67iVcASbaq.x64.dll

    Filesize

    872KB

    MD5

    337b97dbbcc7ad4d75fb5a90652e6de3

    SHA1

    50e50243af1819e62a7512d85e6dd67b8e1ed103

    SHA256

    b501a7a1e233ac26b0ba2fbbf54cbb782f98bc5484537e584fcbf4dcf5cc3f0c

    SHA512

    dab62835e885457c481d7ee4d76c1bc89278d5dc22178301629c78ad3215e1a4627a95f50b03587d8978e85cbba829f31acedf21c23773f5c526b0f76c8cf09e

  • memory/816-61-0x0000000000000000-mapping.dmp

  • memory/864-54-0x0000000075141000-0x0000000075143000-memory.dmp

    Filesize

    8KB

  • memory/864-55-0x0000000000870000-0x0000000000939000-memory.dmp

    Filesize

    804KB

  • memory/1156-65-0x0000000000000000-mapping.dmp

  • memory/1156-66-0x000007FEFB931000-0x000007FEFB933000-memory.dmp

    Filesize

    8KB