Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    25-05-2024 19:56

General

  • Target

    a1c57aea0752e05a55e8b6ac9093368701c7035961bc49177af9d08e50fcb0ca.exe

  • Size

    6.5MB

  • MD5

    9b992710ae2b1b86467b98166596b332

  • SHA1

    83a0d21a51a44879d4a217766ef3808c57248802

  • SHA256

    a1c57aea0752e05a55e8b6ac9093368701c7035961bc49177af9d08e50fcb0ca

  • SHA512

    cf4ab7c05248faf85bd115bc159c39131da4f1ad0d1b4a66a8dd42de52f563ac4a302f379451494f60d5dbbc4281a291e0a398ae9692ef82515169ec8996ad31

  • SSDEEP

    98304:9ws2ANnKXOaeOgmhbi1BTutTbpZNl9CHkVVK4fjZbcVQ7/1s3Jlvs:nKXbeO7c1pgbP/9ak/K4fjZbc6/m3Ps

Malware Config

Signatures

  • Detect PurpleFox Rootkit 5 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 6 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 DLL path for service in the registry 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 13 IoCs
  • UPX packed file 6 IoCs

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

  • Drops file in System32 directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a1c57aea0752e05a55e8b6ac9093368701c7035961bc49177af9d08e50fcb0ca.exe
    "C:\Users\Admin\AppData\Local\Temp\a1c57aea0752e05a55e8b6ac9093368701c7035961bc49177af9d08e50fcb0ca.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2216
    • C:\Users\Admin\AppData\Local\Temp\R.exe
      C:\Users\Admin\AppData\Local\Temp\\R.exe
      2⤵
      • Sets DLL path for service in the registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      PID:1264
    • 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:2532
      • 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:2572
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:2504
    • C:\Users\Admin\AppData\Local\Temp\HD_a1c57aea0752e05a55e8b6ac9093368701c7035961bc49177af9d08e50fcb0ca.exe
      C:\Users\Admin\AppData\Local\Temp\HD_a1c57aea0752e05a55e8b6ac9093368701c7035961bc49177af9d08e50fcb0ca.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      PID:2768
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
    1⤵
      PID:2392
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
      1⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2388
      • C:\Windows\SysWOW64\Remote Data.exe
        "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259397526.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2980
    • C:\Windows\SysWOW64\TXPlatfor.exe
      C:\Windows\SysWOW64\TXPlatfor.exe -auto
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2648
      • 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:2876

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      2.7MB

      MD5

      f47ede11569972294f0c6e14abc1ed5d

      SHA1

      716f0395d5ed6471f333bb637bf6616f99f778c1

      SHA256

      64d4b87645b0ad7850630bef449028267167a263697f7349345ae263d1ad19e7

      SHA512

      01b9065a2bbce1b03693d7ddeb8238d32db8387e3a33cbe4dd0faa403e071f123d2369681c5920badb806c4fec8a1e27bd3b0fa9736223697a64e816fb134419

    • C:\Users\Admin\AppData\Local\Temp\nsi1A93.tmp\ioSpecial.ini

      Filesize

      1KB

      MD5

      1ed0e756c9b53e3e315c64908ad9d1c8

      SHA1

      ca26f14c5412a1d425e1d0a5bba3fd8354ceb0b2

      SHA256

      823cfd88f9bb203ef47ddb25b5d36550bd9b175f79cd91481041c0e91eba146e

      SHA512

      08da401c8945a907ea529bf76b90bd4d2d84c787aaef5de93c13f718a1220546693c6cc46ade84ccee62ebedf39340daff1ed5e9cda206f7c4a700664c5eb1d3

    • \Users\Admin\AppData\Local\Temp\HD_a1c57aea0752e05a55e8b6ac9093368701c7035961bc49177af9d08e50fcb0ca.exe

      Filesize

      3.8MB

      MD5

      3e7de17d67e8780a2f7ecda10cd31f7e

      SHA1

      0d54f920ac02e2fade9ffb5d517b7f3474d0df0f

      SHA256

      1043172fa3e173da7bd3f74c207202085c3dff4e816150d9a244956d6b4d0eba

      SHA512

      8da38aec893457bd2712268e16cbf6fff93096780c0e8ac61fddf70533fada8c96e3411a75e3619fd1529e6a1a450f6c8c60cce9b6d2691b2333d4a1548dad15

    • \Users\Admin\AppData\Local\Temp\N.exe

      Filesize

      377KB

      MD5

      4a36a48e58829c22381572b2040b6fe0

      SHA1

      f09d30e44ff7e3f20a5de307720f3ad148c6143b

      SHA256

      3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

      SHA512

      5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

    • \Users\Admin\AppData\Local\Temp\R.exe

      Filesize

      941KB

      MD5

      8dc3adf1c490211971c1e2325f1424d2

      SHA1

      4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

      SHA256

      bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

      SHA512

      ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

    • \Users\Admin\AppData\Local\Temp\nsi1A93.tmp\FindProcDLL.dll

      Filesize

      27KB

      MD5

      6f73b00aef6c49eac62128ef3eca677e

      SHA1

      1b6aff67d570e5ee61af2376247590eb49b728a1

      SHA256

      6eb09ce25c7fc62e44dc2f71761c6d60dd4b2d0c7d15e9651980525103aac0a9

      SHA512

      678fc4bf7d345eeb99a3420ec7d0071eaba302845e93b48527d9a2a9c406709cc44ec74d6a889e25a8351a463803f8713a833df3a1707a5ad50db05240a32938

    • \Users\Admin\AppData\Local\Temp\nsi1A93.tmp\InstallOptions.dll

      Filesize

      15KB

      MD5

      89351a0a6a89519c86c5531e20dab9ea

      SHA1

      9e801aaaae9e70d8f7fc52f6f12cedc55e4c8a00

      SHA256

      f530069ef87a1c163c4fd63a3d5b053420ce3d7a98739c70211b4a99f90d6277

      SHA512

      13168fa828b581383e5f64d3b54be357e98d2eb9362b45685e7426ffc2f0696ab432cc8a3f374ce8abd03c096f1662d954877afa886fc4aa74709e6044b75c08

    • \Windows\SysWOW64\259397526.txt

      Filesize

      899KB

      MD5

      93e73942b2969dc07c939b71f6d2e50f

      SHA1

      cd95522c60c48372ead7e94f41b7af7859522396

      SHA256

      d2d6f84758cd85c2cb00ee9a0db104aa99cf0def849f700e437d8b10f2b69c39

      SHA512

      fc46cf1a68deb408b0095531f0ecc4f20b230e3f6afeef2669600e7010cb245580c765c24551a266969ae33c44620efb16c76642cb2b5c584817c00f5d28e937

    • \Windows\SysWOW64\Remote Data.exe

      Filesize

      43KB

      MD5

      51138beea3e2c21ec44d0932c71762a8

      SHA1

      8939cf35447b22dd2c6e6f443446acc1bf986d58

      SHA256

      5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

      SHA512

      794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

    • memory/2532-21-0x0000000010000000-0x00000000101B6000-memory.dmp

      Filesize

      1.7MB

    • memory/2532-20-0x0000000010000000-0x00000000101B6000-memory.dmp

      Filesize

      1.7MB

    • memory/2532-18-0x0000000010000000-0x00000000101B6000-memory.dmp

      Filesize

      1.7MB

    • memory/2876-44-0x0000000010000000-0x00000000101B6000-memory.dmp

      Filesize

      1.7MB

    • memory/2876-46-0x0000000010000000-0x00000000101B6000-memory.dmp

      Filesize

      1.7MB

    • memory/2876-134-0x0000000010000000-0x00000000101B6000-memory.dmp

      Filesize

      1.7MB