Analysis

  • max time kernel
    154s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-05-2023 11:36

General

  • Target

    tmp.exe

  • Size

    7.9MB

  • MD5

    730b65aafc0abb9e1f7e69d9e19ed3e4

  • SHA1

    2629f7bc69f8bfce43a6e32e06f25dbed86ea64a

  • SHA256

    4a97c1f0f4a139fa0079730d2559763dd52c7a92bb3fdbefb7c972a4e79cc04f

  • SHA512

    fdc9799d71db417e7768f127dd0cbcd72ce050fbc7949f91028563a357d00c52b87f7ce0e3148913aee700d37c2e935daf2090e16a0bd183958a196001f0687f

  • SSDEEP

    196608:HKXbeO7YD4egJOMXIIoKrrrrUW11kWgj55sOE:079wyIIoB+E5U

Malware Config

Extracted

Family

gh0strat

C2

159.75.0.162

Signatures

  • Detect PurpleFox Rootkit 7 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 9 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • PurpleFox

    PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.

  • Drops file in Drivers directory 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 8 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 33 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Drops file in System32 directory 3 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4780
    • C:\Users\Admin\AppData\Local\Temp\R.exe
      C:\Users\Admin\AppData\Local\Temp\\R.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      PID:4768
    • C:\Users\Admin\AppData\Local\Temp\N.exe
      C:\Users\Admin\AppData\Local\Temp\\N.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:532
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\N.exe > nul
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:5104
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:3668
    • C:\Users\Admin\AppData\Local\Temp\HD_tmp.exe
      C:\Users\Admin\AppData\Local\Temp\HD_tmp.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1196
      • C:\Users\Admin\AppData\Roaming\´úÀí¶Ë.exe
        "C:\Users\Admin\AppData\Roaming\´úÀí¶Ë.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:4564
      • C:\Users\Admin\AppData\Roaming\QQPr0tect.exe
        "C:\Users\Admin\AppData\Roaming\QQPr0tect.exe"
        3⤵
        • Executes dropped EXE
        PID:2640
      • C:\Users\Admin\AppData\Roaming\Seov.er.exe
        "C:\Users\Admin\AppData\Roaming\Seov.er.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Enumerates connected drives
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        PID:1132
  • C:\Windows\SysWOW64\TXPlatfor.exe
    C:\Windows\SysWOW64\TXPlatfor.exe -auto
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:4964
    • C:\Windows\SysWOW64\TXPlatfor.exe
      C:\Windows\SysWOW64\TXPlatfor.exe -acsi
      2⤵
      • Drops file in Drivers directory
      • Sets service image path in registry
      • Executes dropped EXE
      • Suspicious behavior: LoadsDriver
      • Suspicious use of AdjustPrivilegeToken
      PID:3128

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

2
T1060

Defense Evasion

Modify Registry

2
T1112

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Remote System Discovery

1
T1018

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\HD_X.dat
    Filesize

    2.3MB

    MD5

    5b5a9ba7646021a05b29feb9d5679b9d

    SHA1

    5790107fe005a4901869fa2e5d9e4ec7204a63e4

    SHA256

    00afeed2c5cd8213bf8400c95fa6dcdd839a6a08cc49b812fc2b132958bc0a51

    SHA512

    0991d0b58c0e30f4424e5bf9e6c1a9f4ae1090f5eed24b9d313676108a81359f7289c1815b5b0614275b610ff342ac4ef7cbee99a2e8dbae6200ee5a40010b2b

  • C:\Users\Admin\AppData\Local\Temp\HD_tmp.exe
    Filesize

    5.5MB

    MD5

    0eb97cbc99a94357ebc7ff299031a09e

    SHA1

    0a8a98601ba1d413437371e57f10d45bfd944a8f

    SHA256

    b62f85efc48eb04b1f25d2a94de458d53e730fe213cfa97f9994e6a60281979d

    SHA512

    e7b32eef6c54ee45a6de139756f376ead337ab99c3dfb324a810257cabddbd41163daee63a1a92cd269d1c5a2cc54b1d4348a491b8c6285bab3cd474e327f756

  • C:\Users\Admin\AppData\Local\Temp\HD_tmp.exe
    Filesize

    5.5MB

    MD5

    0eb97cbc99a94357ebc7ff299031a09e

    SHA1

    0a8a98601ba1d413437371e57f10d45bfd944a8f

    SHA256

    b62f85efc48eb04b1f25d2a94de458d53e730fe213cfa97f9994e6a60281979d

    SHA512

    e7b32eef6c54ee45a6de139756f376ead337ab99c3dfb324a810257cabddbd41163daee63a1a92cd269d1c5a2cc54b1d4348a491b8c6285bab3cd474e327f756

  • C:\Users\Admin\AppData\Local\Temp\N.exe
    Filesize

    377KB

    MD5

    4a36a48e58829c22381572b2040b6fe0

    SHA1

    f09d30e44ff7e3f20a5de307720f3ad148c6143b

    SHA256

    3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

    SHA512

    5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

  • C:\Users\Admin\AppData\Local\Temp\N.exe
    Filesize

    377KB

    MD5

    4a36a48e58829c22381572b2040b6fe0

    SHA1

    f09d30e44ff7e3f20a5de307720f3ad148c6143b

    SHA256

    3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

    SHA512

    5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

  • C:\Users\Admin\AppData\Local\Temp\R.exe
    Filesize

    941KB

    MD5

    8dc3adf1c490211971c1e2325f1424d2

    SHA1

    4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

    SHA256

    bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

    SHA512

    ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

  • C:\Users\Admin\AppData\Local\Temp\R.exe
    Filesize

    941KB

    MD5

    8dc3adf1c490211971c1e2325f1424d2

    SHA1

    4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

    SHA256

    bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

    SHA512

    ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

  • C:\Users\Admin\AppData\Roaming\QQPr0tect.exe
    Filesize

    632KB

    MD5

    30028e3d04793bf3bd91f4d2371d88b3

    SHA1

    d431b5f46d0fbc437a8797366a1eafb1ecfb7170

    SHA256

    71edf77fc84fa865dd42c64352edf77d688b6099b59cac1e6baf21abd3023791

    SHA512

    e496d41b447260a776171ae14c01809a10b921754aa7b230e1ad00c94182ce0d77b546ce6d4bcc030b948a9cde7a0f940025646799cec91abe191af872996320

  • C:\Users\Admin\AppData\Roaming\QQPr0tect.exe
    Filesize

    632KB

    MD5

    30028e3d04793bf3bd91f4d2371d88b3

    SHA1

    d431b5f46d0fbc437a8797366a1eafb1ecfb7170

    SHA256

    71edf77fc84fa865dd42c64352edf77d688b6099b59cac1e6baf21abd3023791

    SHA512

    e496d41b447260a776171ae14c01809a10b921754aa7b230e1ad00c94182ce0d77b546ce6d4bcc030b948a9cde7a0f940025646799cec91abe191af872996320

  • C:\Users\Admin\AppData\Roaming\Seov.er.exe
    Filesize

    784KB

    MD5

    c6bfd6586127ed5817ea5c535fa673b9

    SHA1

    1067d9135fd2ffb588a70f65f278597768696166

    SHA256

    c55896fdef7d262519eb72d4ea6590fa933c322027b0fb789b3f1775a0bc7253

    SHA512

    db35013b5fc17790bbd72ca4cf1001575e054cbcfd9a268c595ef65b7cd38f3312b15769c22fc2a68c54e16d4b66d257d05e0b43d363464a1167e8c46724749e

  • C:\Users\Admin\AppData\Roaming\Seov.er.exe
    Filesize

    784KB

    MD5

    c6bfd6586127ed5817ea5c535fa673b9

    SHA1

    1067d9135fd2ffb588a70f65f278597768696166

    SHA256

    c55896fdef7d262519eb72d4ea6590fa933c322027b0fb789b3f1775a0bc7253

    SHA512

    db35013b5fc17790bbd72ca4cf1001575e054cbcfd9a268c595ef65b7cd38f3312b15769c22fc2a68c54e16d4b66d257d05e0b43d363464a1167e8c46724749e

  • C:\Users\Admin\AppData\Roaming\Seov.er.exe
    Filesize

    784KB

    MD5

    c6bfd6586127ed5817ea5c535fa673b9

    SHA1

    1067d9135fd2ffb588a70f65f278597768696166

    SHA256

    c55896fdef7d262519eb72d4ea6590fa933c322027b0fb789b3f1775a0bc7253

    SHA512

    db35013b5fc17790bbd72ca4cf1001575e054cbcfd9a268c595ef65b7cd38f3312b15769c22fc2a68c54e16d4b66d257d05e0b43d363464a1167e8c46724749e

  • C:\Users\Admin\AppData\Roaming\´úÀí¶Ë.exe
    Filesize

    1.5MB

    MD5

    21213b353044cf797e7e8acececb4ca0

    SHA1

    8afaf66a2da8c14fcb91d543f381bcff76ba13a0

    SHA256

    a6d4bf32617d6398e28c7669fa43afbed77c1283a40670f266cdd8b199bfae8e

    SHA512

    6f4ac4589fe50077711cc44fb7ba407013e8b83d09ed842e5a5540d5594c4f24538259d3879c36509b2e8a6622f71984648a2bcabec41139a8883ce173a9b86f

  • C:\Users\Admin\AppData\Roaming\´úÀí¶Ë.exe
    Filesize

    1.5MB

    MD5

    21213b353044cf797e7e8acececb4ca0

    SHA1

    8afaf66a2da8c14fcb91d543f381bcff76ba13a0

    SHA256

    a6d4bf32617d6398e28c7669fa43afbed77c1283a40670f266cdd8b199bfae8e

    SHA512

    6f4ac4589fe50077711cc44fb7ba407013e8b83d09ed842e5a5540d5594c4f24538259d3879c36509b2e8a6622f71984648a2bcabec41139a8883ce173a9b86f

  • C:\Users\Admin\AppData\Roaming\´úÀí¶Ë.exe
    Filesize

    1.5MB

    MD5

    21213b353044cf797e7e8acececb4ca0

    SHA1

    8afaf66a2da8c14fcb91d543f381bcff76ba13a0

    SHA256

    a6d4bf32617d6398e28c7669fa43afbed77c1283a40670f266cdd8b199bfae8e

    SHA512

    6f4ac4589fe50077711cc44fb7ba407013e8b83d09ed842e5a5540d5594c4f24538259d3879c36509b2e8a6622f71984648a2bcabec41139a8883ce173a9b86f

  • C:\Windows\SysWOW64\240547218.txt
    Filesize

    899KB

    MD5

    d158543bdd717b1ff8883e0f94a0332c

    SHA1

    5aba6ea0edb0eae9387ef7c9282c66e7cc88b875

    SHA256

    6afa80ace5a992c13d4bddbea4eb65bb4c09b0e8f00a36ff432483a926225223

    SHA512

    d44bac990b7b65763bca7f97c21d5fe3afe61516efc6ea32d7e5bd06b296fb0b5f342534cd60137aceaddfa7c5c4028dedbdb7b0138c52699287aa7abde42eb6

  • C:\Windows\SysWOW64\TXPlatfor.exe
    Filesize

    377KB

    MD5

    4a36a48e58829c22381572b2040b6fe0

    SHA1

    f09d30e44ff7e3f20a5de307720f3ad148c6143b

    SHA256

    3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

    SHA512

    5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

  • C:\Windows\SysWOW64\TXPlatfor.exe
    Filesize

    377KB

    MD5

    4a36a48e58829c22381572b2040b6fe0

    SHA1

    f09d30e44ff7e3f20a5de307720f3ad148c6143b

    SHA256

    3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

    SHA512

    5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

  • C:\Windows\SysWOW64\TXPlatfor.exe
    Filesize

    377KB

    MD5

    4a36a48e58829c22381572b2040b6fe0

    SHA1

    f09d30e44ff7e3f20a5de307720f3ad148c6143b

    SHA256

    3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

    SHA512

    5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

  • memory/532-147-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/532-148-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/532-145-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/1132-234-0x0000000010000000-0x0000000010015000-memory.dmp
    Filesize

    84KB

  • memory/3128-174-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/3128-171-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/3128-167-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/4564-216-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-239-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-220-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-266-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-222-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-265-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-224-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-226-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-228-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-230-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-232-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-263-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-235-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-219-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-242-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-245-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-247-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-249-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-251-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-253-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-255-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-257-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-259-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4564-261-0x0000000010000000-0x000000001003E000-memory.dmp
    Filesize

    248KB

  • memory/4964-153-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/4964-155-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB

  • memory/4964-156-0x0000000010000000-0x00000000101B6000-memory.dmp
    Filesize

    1.7MB