Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    24-06-2024 09:09

General

  • Target

    74723b8f53fca55f5e0b5755465a69d78960131ec9dd49445b8bde4354d0c94d.exe

  • Size

    4.5MB

  • MD5

    17caf50a89e0ca1e1e3e85cf7b14c509

  • SHA1

    b4703fe095593e0978964c64db00cc142a0c672b

  • SHA256

    74723b8f53fca55f5e0b5755465a69d78960131ec9dd49445b8bde4354d0c94d

  • SHA512

    6acc0627291e232e89e5f2b8db73550e134d8cf7c217c4ab55fee1293f9c01537f9d8e13b05c0fa6e6e4143e7de35bdda754b6706ee6cf0be655be9392bd119e

  • SSDEEP

    98304:z27lsFWcG7V95lWEw58NQM8mxozibMW+kt1bPaf1FA1kOf2fBPxO41EEqCI4:zSjvV95oEGoQM8mezibMmdatTO61EEqC

Malware Config

Extracted

Family

cryptbot

C2

verf04.info

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

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

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

  • Executes dropped EXE 3 IoCs
  • Identifies Wine through registry keys 2 TTPs 2 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 11 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • 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 2 IoCs
  • Drops file in Program Files directory 4 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 12 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\74723b8f53fca55f5e0b5755465a69d78960131ec9dd49445b8bde4354d0c94d.exe
    "C:\Users\Admin\AppData\Local\Temp\74723b8f53fca55f5e0b5755465a69d78960131ec9dd49445b8bde4354d0c94d.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:636
    • C:\Program Files (x86)\Inner\win\bin\setup.exe
      "C:\Program Files (x86)\Inner\win\bin\setup.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Loads dropped DLL
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      PID:2988
    • C:\Windows\SysWOW64\CScript.exe
      "C:\Windows\system32\CScript.exe" "C:\Program Files (x86)\Inner\win\bin\Two.vbs" //e:vbscript //B //NOLOGO
      2⤵
      • Blocklisted process makes network request
      • Suspicious use of AdjustPrivilegeToken
      PID:2772
    • C:\Program Files (x86)\Inner\win\bin\Notepad2.exe
      "C:\Program Files (x86)\Inner\win\bin\Notepad2.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2072
    • C:\Program Files (x86)\Inner\win\bin\patch.exe
      "C:\Program Files (x86)\Inner\win\bin\patch.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Loads dropped DLL
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      PID:2452

Network

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\Inner\win\bin\Two.vbs
    Filesize

    120B

    MD5

    dce4476454d12f8906cfa1db72722e2d

    SHA1

    4437a74ae0fcf7a4a636c04b7c0b80880871816a

    SHA256

    53908a91a2c298fcfd2cd278d4e273ecd55a3b5c81f10775307352aca5e211e8

    SHA512

    5a13b419813e768be03069332d3f655609221391b7faab5ed8c90ea57a7a26861ed0b5a256619ce9b8e62579e9e3ef9b0e8a37d6a688cb3795c62ea8cd55786f

  • C:\ProgramData\cpd1UJayQYo2VaXS\172773668.txt
    Filesize

    156B

    MD5

    c12be1e7b6541de7746a7e6f7c722027

    SHA1

    c637002a9c8aa73dc4dbccc2908aef8ea15819cc

    SHA256

    0f974cdba262cc57a0a57aac5fc2ab5516ff2dd953247cf817690425dca401fd

    SHA512

    f7472f853b360639007a307ab6db31ba4287c117bbacc2c0081904e47afdca6f4c236dab438bb387740166cc5bacc184a0752b69d0d7cea92315bac9b5dbd5c5

  • C:\ProgramData\cpd1UJayQYo2VaXS\Files\Browsers\_FilePasswords.txt
    Filesize

    3B

    MD5

    ecaa88f7fa0bf610a5a26cf545dcd3aa

    SHA1

    57218c316b6921e2cd61027a2387edc31a2d9471

    SHA256

    f1945cd6c19e56b3c1c78943ef5ec18116907a4ca1efc40a57d48ab1db7adfc5

    SHA512

    37c783b80b1d458b89e712c2dfe2777050eff0aefc9f6d8beedee77807d9aeb2e27d14815cf4f0229b1d36c186bb5f2b5ef55e632b108cc41e9fb964c39b42a5

  • C:\ProgramData\cpd1UJayQYo2VaXS\Files\_Info.txt
    Filesize

    1KB

    MD5

    36b6f84f764a3d9582f5cc1c6b4854d9

    SHA1

    6350b801b516ad883fd0ac5f46227dd975a0ba7e

    SHA256

    f31c223de283d33aa680a1ab2c21aaa0163255623f8154abd657069ea27c6bff

    SHA512

    288f2787de9cb32fcd0a0cfdc8c85c0232e6f82389438313a27c48181e6ada65471daabd49a5ae7d9a2492002a3a7bae06ef1f67d27a4d5d81c7dfe052d2ffd2

  • C:\ProgramData\cpd1UJayQYo2VaXS\w67cqLVFigAjindD.zip
    Filesize

    40KB

    MD5

    85fee58c5981061be52c34e0987e473f

    SHA1

    00cfa809935c71ff8b193bbadd30053e8ac85028

    SHA256

    2aa5b5862de553447bc79efde7f356a684246d42859d084512d04e89a852ca92

    SHA512

    87cd09b9f8ba87a709b8a906d57fa63d4f414f3d43431f23a870942cee045c78751cc989a7532e349097a8e1ff650946fb0ee5526ddbc63c2deb545eb56600d4

  • \Program Files (x86)\Inner\win\bin\Notepad2.exe
    Filesize

    693KB

    MD5

    b60d390ba42c0109ee38de2e0ca56e1a

    SHA1

    735a4eb61fe695c9bd2c9961f5fa41ac5a73d833

    SHA256

    9ac61841c5a9716c04d632f9d107a17e94af751573a50b9d2c1d5ce26e32b477

    SHA512

    97d17a96a5773f2c8c78a1b985e75314c0ad8a5d9188b6e3d327b1445c04b15b99bd1697b8b12e4f3e56d040e5570f9e7b938e4d67cacca03a947093a082dc24

  • \Program Files (x86)\Inner\win\bin\patch.exe
    Filesize

    2.1MB

    MD5

    5da43c1e12289a6ee23c690404359d32

    SHA1

    d20ddb31c9c1c7c9bfd2c77890fb13608aac2c42

    SHA256

    554d5c274a401ab86387b8feadaa30f95b9bfa5873434b7592a96b932aebc025

    SHA512

    4a51da8e684688ce08a9bfc9ce1107ce30865fb171770269402bfa07df35a4db3eb79a8e54892855f1867f995691b5d52591971b8befb5870b9aa22945a40763

  • \Program Files (x86)\Inner\win\bin\setup.exe
    Filesize

    2.1MB

    MD5

    3657f6fadee899005c6556c07a890bba

    SHA1

    bb532f5420c5baacb7b19f508ec29440135c3c74

    SHA256

    0ab71f45b1e9c6f5eba7ce76b31285a18e7a2851870e551b6aa3dbd8cd756aae

    SHA512

    3158f42fc30ee5425a252dd976c0d3634b1df124cf364c5790071677e33082343be4f117f05c8cc725cfd566f87229c4d2fdd235849b1b34b13d9a7285324068

  • \Users\Admin\AppData\Local\Temp\nsy7BF.tmp\UAC.dll
    Filesize

    14KB

    MD5

    adb29e6b186daa765dc750128649b63d

    SHA1

    160cbdc4cb0ac2c142d361df138c537aa7e708c9

    SHA256

    2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

    SHA512

    b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

  • \Users\Admin\AppData\Local\Temp\nsy7BF.tmp\nsExec.dll
    Filesize

    6KB

    MD5

    132e6153717a7f9710dcea4536f364cd

    SHA1

    e39bc82c7602e6dd0797115c2bd12e872a5fb2ab

    SHA256

    d29afce2588d8dd7bb94c00ca91cac0e85b80ffa6b221f5ffcb83a2497228eb2

    SHA512

    9aeb0b3051ce07fb9f03dfee7cea4a5e423425e48cb538173bd2a167817f867a30bd4d27d07875f27ca00031745b24547030b7f146660b049fa717590f1c77e1

  • memory/636-179-0x00000000030B0000-0x00000000035E6000-memory.dmp
    Filesize

    5.2MB

  • memory/636-135-0x00000000030B0000-0x00000000035E6000-memory.dmp
    Filesize

    5.2MB

  • memory/636-11-0x00000000030B0000-0x00000000035D0000-memory.dmp
    Filesize

    5.1MB

  • memory/2452-182-0x0000000000400000-0x0000000000936000-memory.dmp
    Filesize

    5.2MB

  • memory/2452-207-0x0000000000400000-0x0000000000936000-memory.dmp
    Filesize

    5.2MB

  • memory/2452-162-0x00000000012A0000-0x00000000017D6000-memory.dmp
    Filesize

    5.2MB

  • memory/2452-160-0x0000000000400000-0x0000000000936000-memory.dmp
    Filesize

    5.2MB

  • memory/2452-224-0x0000000000400000-0x0000000000936000-memory.dmp
    Filesize

    5.2MB

  • memory/2452-175-0x0000000000400000-0x0000000000936000-memory.dmp
    Filesize

    5.2MB

  • memory/2452-220-0x0000000000400000-0x0000000000936000-memory.dmp
    Filesize

    5.2MB

  • memory/2452-217-0x0000000000400000-0x0000000000936000-memory.dmp
    Filesize

    5.2MB

  • memory/2452-214-0x0000000000400000-0x0000000000936000-memory.dmp
    Filesize

    5.2MB

  • memory/2452-210-0x0000000000400000-0x0000000000936000-memory.dmp
    Filesize

    5.2MB

  • memory/2452-181-0x0000000000400000-0x0000000000936000-memory.dmp
    Filesize

    5.2MB

  • memory/2452-183-0x00000000012A0000-0x00000000017D6000-memory.dmp
    Filesize

    5.2MB

  • memory/2452-161-0x00000000012A0000-0x00000000017D6000-memory.dmp
    Filesize

    5.2MB

  • memory/2452-204-0x0000000000400000-0x0000000000936000-memory.dmp
    Filesize

    5.2MB

  • memory/2452-185-0x00000000012A0000-0x00000000017D6000-memory.dmp
    Filesize

    5.2MB

  • memory/2452-201-0x0000000000400000-0x0000000000936000-memory.dmp
    Filesize

    5.2MB

  • memory/2452-187-0x0000000000400000-0x0000000000936000-memory.dmp
    Filesize

    5.2MB

  • memory/2452-198-0x0000000000400000-0x0000000000936000-memory.dmp
    Filesize

    5.2MB

  • memory/2452-191-0x0000000000400000-0x0000000000936000-memory.dmp
    Filesize

    5.2MB

  • memory/2452-195-0x0000000000400000-0x0000000000936000-memory.dmp
    Filesize

    5.2MB

  • memory/2988-25-0x0000000000BB0000-0x00000000010D0000-memory.dmp
    Filesize

    5.1MB

  • memory/2988-174-0x0000000001150000-0x0000000001670000-memory.dmp
    Filesize

    5.1MB

  • memory/2988-193-0x0000000001150000-0x0000000001670000-memory.dmp
    Filesize

    5.1MB

  • memory/2988-199-0x0000000001150000-0x0000000001670000-memory.dmp
    Filesize

    5.1MB

  • memory/2988-186-0x0000000001150000-0x0000000001670000-memory.dmp
    Filesize

    5.1MB

  • memory/2988-203-0x0000000001150000-0x0000000001670000-memory.dmp
    Filesize

    5.1MB

  • memory/2988-24-0x0000000000BB0000-0x00000000010D0000-memory.dmp
    Filesize

    5.1MB

  • memory/2988-206-0x0000000001150000-0x0000000001670000-memory.dmp
    Filesize

    5.1MB

  • memory/2988-190-0x0000000001150000-0x0000000001670000-memory.dmp
    Filesize

    5.1MB

  • memory/2988-196-0x0000000001150000-0x0000000001670000-memory.dmp
    Filesize

    5.1MB

  • memory/2988-212-0x0000000001150000-0x0000000001670000-memory.dmp
    Filesize

    5.1MB

  • memory/2988-180-0x0000000001150000-0x0000000001670000-memory.dmp
    Filesize

    5.1MB

  • memory/2988-23-0x0000000001150000-0x0000000001670000-memory.dmp
    Filesize

    5.1MB

  • memory/2988-216-0x0000000001150000-0x0000000001670000-memory.dmp
    Filesize

    5.1MB

  • memory/2988-178-0x0000000000BB0000-0x00000000010D0000-memory.dmp
    Filesize

    5.1MB

  • memory/2988-219-0x0000000001150000-0x0000000001670000-memory.dmp
    Filesize

    5.1MB

  • memory/2988-176-0x0000000000BB0000-0x00000000010D0000-memory.dmp
    Filesize

    5.1MB

  • memory/2988-222-0x0000000001150000-0x0000000001670000-memory.dmp
    Filesize

    5.1MB

  • memory/2988-209-0x0000000001150000-0x0000000001670000-memory.dmp
    Filesize

    5.1MB