Analysis

  • max time kernel
    120s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    15-02-2022 13:44

General

  • Target

    488c8ca1ddf12bd8a8a137cedc546c17b436839a1c91382bb6e6f3e333a63648.exe

  • Size

    6.0MB

  • MD5

    a2d41440e015f546c646d23e96bba3fb

  • SHA1

    d42da38f61490026b421d5ac37618f84978fa42e

  • SHA256

    488c8ca1ddf12bd8a8a137cedc546c17b436839a1c91382bb6e6f3e333a63648

  • SHA512

    7fc71dcef3f8e33b0b31e5611bcdbea4db0e43833df0daf9a798206baf5574a09a14c7e9e1a3496404e22fca2993eb654748879bf8ce040a1b5e08f3d1902b94

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Blocklisted process makes network request 4 IoCs
  • Executes dropped EXE 3 IoCs
  • Checks BIOS information in registry 2 TTPs 6 IoCs

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

  • Drops startup file 1 IoCs
  • Loads dropped DLL 9 IoCs
  • Themida packer 22 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\488c8ca1ddf12bd8a8a137cedc546c17b436839a1c91382bb6e6f3e333a63648.exe
    "C:\Users\Admin\AppData\Local\Temp\488c8ca1ddf12bd8a8a137cedc546c17b436839a1c91382bb6e6f3e333a63648.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Users\Admin\AppData\Local\Temp\runkly\bescab.exe
      "C:\Users\Admin\AppData\Local\Temp\runkly\bescab.exe"
      2⤵
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Drops startup file
      • Loads dropped DLL
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of WriteProcessMemory
      PID:672
      • C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
        "C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe"
        3⤵
        • Executes dropped EXE
        • Checks BIOS information in registry
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious behavior: AddClipboardFormatListener
        PID:832
    • C:\Users\Admin\AppData\Local\Temp\runkly\chawervp.exe
      "C:\Users\Admin\AppData\Local\Temp\runkly\chawervp.exe"
      2⤵
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Loads dropped DLL
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1208
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\luutepv.vbs"
        3⤵
          PID:1776
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\wvuyylhnruy.vbs"
          3⤵
          • Blocklisted process makes network request
          PID:2000

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Virtualization/Sandbox Evasion

    1
    T1497

    Discovery

    Query Registry

    3
    T1012

    Virtualization/Sandbox Evasion

    1
    T1497

    System Information Discovery

    4
    T1082

    Command and Control

    Web Service

    1
    T1102

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\luutepv.vbs
      MD5

      42b511b2742203ec4797dfd86a3cf7c4

      SHA1

      673ecb5a039f20aac8128f2a2cddd7085f2e7ceb

      SHA256

      bf1b33e6c1d90099f06d191813a97c42add8693773a6c4c7a4018abe26990a37

      SHA512

      f77084d775676cce0507dad43ba5f0b75ad7ba4a3fff514ebbbf14c4b023631689a3ff83816a8f57f49448900a6ef9cc18f9837f3afcee2fae4f3264e28fd3f3

    • C:\Users\Admin\AppData\Local\Temp\runkly\bescab.exe
      MD5

      7353d83c321cb341abed242c33856850

      SHA1

      10207907f7cc70fc0735c0415f21590775fff835

      SHA256

      21a8f01c939e887621a2e3b25ab165a135a842a695fbaec75a1cf13a67fabd37

      SHA512

      275e19eaad5bdd067694d96e5bfe5e27079b6bfd8953ce3519fa5cb80a8b62add21c453a81a9bf7845dad0801871297db2d3de740ef8c74ef718faef5430544c

    • C:\Users\Admin\AppData\Local\Temp\runkly\bescab.exe
      MD5

      7353d83c321cb341abed242c33856850

      SHA1

      10207907f7cc70fc0735c0415f21590775fff835

      SHA256

      21a8f01c939e887621a2e3b25ab165a135a842a695fbaec75a1cf13a67fabd37

      SHA512

      275e19eaad5bdd067694d96e5bfe5e27079b6bfd8953ce3519fa5cb80a8b62add21c453a81a9bf7845dad0801871297db2d3de740ef8c74ef718faef5430544c

    • C:\Users\Admin\AppData\Local\Temp\runkly\chawervp.exe
      MD5

      2ca1fa563d961e96561622edcab5d864

      SHA1

      d9fcd898fe5ddc4a19ae97a6c4ff1f2664a808ac

      SHA256

      dc0b3b9b3bdc64d5074f2126ed397258effa721601c645428bcc653b8cdf2f4e

      SHA512

      916443f39a0e14431b369a6b9c8d37ab12689559f39f3bbd0f9988aa17db2a914c01c9e14cbf7be92146427046e81c76e3dc91f1e767428079c60956e1414b7d

    • C:\Users\Admin\AppData\Local\Temp\runkly\chawervp.exe
      MD5

      2ca1fa563d961e96561622edcab5d864

      SHA1

      d9fcd898fe5ddc4a19ae97a6c4ff1f2664a808ac

      SHA256

      dc0b3b9b3bdc64d5074f2126ed397258effa721601c645428bcc653b8cdf2f4e

      SHA512

      916443f39a0e14431b369a6b9c8d37ab12689559f39f3bbd0f9988aa17db2a914c01c9e14cbf7be92146427046e81c76e3dc91f1e767428079c60956e1414b7d

    • C:\Users\Admin\AppData\Local\Temp\wvuyylhnruy.vbs
      MD5

      ba8482bb107e60fa57b2f6a3865bcc22

      SHA1

      60aa5eae3394170ff368c7ce9ce9fe3d6fba8507

      SHA256

      c05de7cb0ac3f3b6552b57c83f1788f7c8451ec4813e3f23233447ec041e6d68

      SHA512

      3aca0d3358a0487cb2b7edc5cdee89048e34ea56239bb0f760e4ce3ec39bc50d6a7da4e8379c3b811bf0d3a7bb2697d74c9fdff118a564a88ae6881823a8542d

    • C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
      MD5

      7353d83c321cb341abed242c33856850

      SHA1

      10207907f7cc70fc0735c0415f21590775fff835

      SHA256

      21a8f01c939e887621a2e3b25ab165a135a842a695fbaec75a1cf13a67fabd37

      SHA512

      275e19eaad5bdd067694d96e5bfe5e27079b6bfd8953ce3519fa5cb80a8b62add21c453a81a9bf7845dad0801871297db2d3de740ef8c74ef718faef5430544c

    • \Users\Admin\AppData\Local\Temp\nso6E3E.tmp\UAC.dll
      MD5

      adb29e6b186daa765dc750128649b63d

      SHA1

      160cbdc4cb0ac2c142d361df138c537aa7e708c9

      SHA256

      2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

      SHA512

      b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

    • \Users\Admin\AppData\Local\Temp\runkly\bescab.exe
      MD5

      7353d83c321cb341abed242c33856850

      SHA1

      10207907f7cc70fc0735c0415f21590775fff835

      SHA256

      21a8f01c939e887621a2e3b25ab165a135a842a695fbaec75a1cf13a67fabd37

      SHA512

      275e19eaad5bdd067694d96e5bfe5e27079b6bfd8953ce3519fa5cb80a8b62add21c453a81a9bf7845dad0801871297db2d3de740ef8c74ef718faef5430544c

    • \Users\Admin\AppData\Local\Temp\runkly\bescab.exe
      MD5

      7353d83c321cb341abed242c33856850

      SHA1

      10207907f7cc70fc0735c0415f21590775fff835

      SHA256

      21a8f01c939e887621a2e3b25ab165a135a842a695fbaec75a1cf13a67fabd37

      SHA512

      275e19eaad5bdd067694d96e5bfe5e27079b6bfd8953ce3519fa5cb80a8b62add21c453a81a9bf7845dad0801871297db2d3de740ef8c74ef718faef5430544c

    • \Users\Admin\AppData\Local\Temp\runkly\chawervp.exe
      MD5

      2ca1fa563d961e96561622edcab5d864

      SHA1

      d9fcd898fe5ddc4a19ae97a6c4ff1f2664a808ac

      SHA256

      dc0b3b9b3bdc64d5074f2126ed397258effa721601c645428bcc653b8cdf2f4e

      SHA512

      916443f39a0e14431b369a6b9c8d37ab12689559f39f3bbd0f9988aa17db2a914c01c9e14cbf7be92146427046e81c76e3dc91f1e767428079c60956e1414b7d

    • \Users\Admin\AppData\Local\Temp\runkly\chawervp.exe
      MD5

      2ca1fa563d961e96561622edcab5d864

      SHA1

      d9fcd898fe5ddc4a19ae97a6c4ff1f2664a808ac

      SHA256

      dc0b3b9b3bdc64d5074f2126ed397258effa721601c645428bcc653b8cdf2f4e

      SHA512

      916443f39a0e14431b369a6b9c8d37ab12689559f39f3bbd0f9988aa17db2a914c01c9e14cbf7be92146427046e81c76e3dc91f1e767428079c60956e1414b7d

    • \Users\Admin\AppData\Local\Temp\runkly\chawervp.exe
      MD5

      2ca1fa563d961e96561622edcab5d864

      SHA1

      d9fcd898fe5ddc4a19ae97a6c4ff1f2664a808ac

      SHA256

      dc0b3b9b3bdc64d5074f2126ed397258effa721601c645428bcc653b8cdf2f4e

      SHA512

      916443f39a0e14431b369a6b9c8d37ab12689559f39f3bbd0f9988aa17db2a914c01c9e14cbf7be92146427046e81c76e3dc91f1e767428079c60956e1414b7d

    • \Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
      MD5

      7353d83c321cb341abed242c33856850

      SHA1

      10207907f7cc70fc0735c0415f21590775fff835

      SHA256

      21a8f01c939e887621a2e3b25ab165a135a842a695fbaec75a1cf13a67fabd37

      SHA512

      275e19eaad5bdd067694d96e5bfe5e27079b6bfd8953ce3519fa5cb80a8b62add21c453a81a9bf7845dad0801871297db2d3de740ef8c74ef718faef5430544c

    • \Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
      MD5

      7353d83c321cb341abed242c33856850

      SHA1

      10207907f7cc70fc0735c0415f21590775fff835

      SHA256

      21a8f01c939e887621a2e3b25ab165a135a842a695fbaec75a1cf13a67fabd37

      SHA512

      275e19eaad5bdd067694d96e5bfe5e27079b6bfd8953ce3519fa5cb80a8b62add21c453a81a9bf7845dad0801871297db2d3de740ef8c74ef718faef5430544c

    • \Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
      MD5

      7353d83c321cb341abed242c33856850

      SHA1

      10207907f7cc70fc0735c0415f21590775fff835

      SHA256

      21a8f01c939e887621a2e3b25ab165a135a842a695fbaec75a1cf13a67fabd37

      SHA512

      275e19eaad5bdd067694d96e5bfe5e27079b6bfd8953ce3519fa5cb80a8b62add21c453a81a9bf7845dad0801871297db2d3de740ef8c74ef718faef5430544c

    • memory/672-72-0x000000013F9E0000-0x0000000140343000-memory.dmp
      Filesize

      9.4MB

    • memory/672-66-0x000000013F9E0000-0x0000000140343000-memory.dmp
      Filesize

      9.4MB

    • memory/672-69-0x000000013F9E0000-0x0000000140343000-memory.dmp
      Filesize

      9.4MB

    • memory/672-75-0x000007FEFB801000-0x000007FEFB803000-memory.dmp
      Filesize

      8KB

    • memory/672-67-0x0000000076FD0000-0x0000000076FD2000-memory.dmp
      Filesize

      8KB

    • memory/832-80-0x000000013F1B0000-0x000000013FB13000-memory.dmp
      Filesize

      9.4MB

    • memory/832-81-0x000000013F1B0000-0x000000013FB13000-memory.dmp
      Filesize

      9.4MB

    • memory/832-82-0x000000013F1B0000-0x000000013FB13000-memory.dmp
      Filesize

      9.4MB

    • memory/1208-70-0x0000000077170000-0x0000000077172000-memory.dmp
      Filesize

      8KB

    • memory/1208-71-0x00000000009B0000-0x000000000101E000-memory.dmp
      Filesize

      6.4MB

    • memory/1208-68-0x00000000009B0000-0x000000000101E000-memory.dmp
      Filesize

      6.4MB

    • memory/1208-73-0x00000000009B0000-0x000000000101E000-memory.dmp
      Filesize

      6.4MB

    • memory/1732-55-0x0000000074F11000-0x0000000074F13000-memory.dmp
      Filesize

      8KB