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Analysis Report jSMd8npgmU

Overview

General Information

Sample Name:jSMd8npgmU (renamed file extension from none to exe)
Analysis ID:317801
MD5:c22056ecc2af6ad3d132e7de559cc893
SHA1:fca611b97fd08b283819a13b08d075507444e4ab
SHA256:74ac4df1995949478b501f04444e4c09317ded110149f066c8b9c71d2580b004
Tags:HawkEye

Most interesting Screenshot:

Detection

HawkEye MailPassView
Score:100
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

Detected HawkEye Rat
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Yara detected HawkEye Keylogger
Yara detected MailPassView
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Changes the view of files in windows explorer (hidden files and folders)
Contains functionality to detect sleep reduction / modifications
Contains functionality to log keystrokes (.Net Source)
Deletes itself after installation
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
May check the online IP address of the machine
Sample uses process hollowing technique
Writes to foreign memory regions
Yara detected WebBrowserPassView password recovery tool
AV process strings found (often used to terminate AV products)
Antivirus or Machine Learning detection for unpacked file
Checks if Antivirus/Antispyware/Firewall program is installed (via WMI)
Checks if the current process is being debugged
Contains capabilities to detect virtual machines
Contains functionality for read data from the clipboard
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality to call native functions
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to check if a window is minimized (may be used to check if an application is visible)
Contains functionality to detect sandboxes (mouse cursor move detection)
Contains functionality to dynamically determine API calls
Contains functionality to open a port and listen for incoming connection (possibly a backdoor)
Contains functionality to query locales information (e.g. system language)
Contains functionality to read the PEB
Contains functionality to read the clipboard data
Contains functionality to retrieve information about pressed keystrokes
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Creates a window with clipboard capturing capabilities
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Drops PE files
Enables debug privileges
Extensive use of GetProcAddress (often used to hide API calls)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found inlined nop instructions (likely shell or obfuscated code)
Found potential string decryption / allocating functions
HTTP GET or POST without a user agent
IP address seen in connection with other malware
May check if the current machine is a sandbox (GetTickCount - Sleep)
May infect USB drives
May sleep (evasive loops) to hinder dynamic analysis
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
One or more processes crash
PE file contains strange resources
Queries disk information (often used to detect virtual machines)
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Queries the volume information (name, serial number etc) of a device
Sample file is different than original file name gathered from version info
Stores large binary data to the registry
Tries to load missing DLLs
Uses SMTP (mail sending)
Uses code obfuscation techniques (call, push, ret)
Yara detected Keylogger Generic
Yara signature match

Classification

Startup

  • System is w10x64
  • jSMd8npgmU.exe (PID: 3920 cmdline: 'C:\Users\user\Desktop\jSMd8npgmU.exe' MD5: C22056ECC2AF6AD3D132E7DE559CC893)
    • jSMd8npgmU.exe (PID: 3396 cmdline: 'C:\Users\user\Desktop\jSMd8npgmU.exe' MD5: C22056ECC2AF6AD3D132E7DE559CC893)
      • Windows Update.exe (PID: 6024 cmdline: 'C:\Users\user\AppData\Roaming\Windows Update.exe' MD5: C22056ECC2AF6AD3D132E7DE559CC893)
        • Windows Update.exe (PID: 244 cmdline: 'C:\Users\user\AppData\Roaming\Windows Update.exe' MD5: C22056ECC2AF6AD3D132E7DE559CC893)
          • dw20.exe (PID: 68 cmdline: dw20.exe -x -s 2436 MD5: 8D10DA8A3E11747E51F23C882C22BBC3)
  • WindowsUpdate.exe (PID: 6476 cmdline: 'C:\Users\user\AppData\Roaming\WindowsUpdate.exe' MD5: C22056ECC2AF6AD3D132E7DE559CC893)
    • WindowsUpdate.exe (PID: 6764 cmdline: 'C:\Users\user\AppData\Roaming\WindowsUpdate.exe' MD5: C22056ECC2AF6AD3D132E7DE559CC893)
      • Windows Update.exe (PID: 6864 cmdline: 'C:\Users\user\AppData\Roaming\Windows Update.exe' MD5: C22056ECC2AF6AD3D132E7DE559CC893)
        • Windows Update.exe (PID: 6968 cmdline: 'C:\Users\user\AppData\Roaming\Windows Update.exe' MD5: C22056ECC2AF6AD3D132E7DE559CC893)
  • WindowsUpdate.exe (PID: 6800 cmdline: 'C:\Users\user\AppData\Roaming\WindowsUpdate.exe' MD5: C22056ECC2AF6AD3D132E7DE559CC893)
    • WindowsUpdate.exe (PID: 6944 cmdline: 'C:\Users\user\AppData\Roaming\WindowsUpdate.exe' MD5: C22056ECC2AF6AD3D132E7DE559CC893)
      • dw20.exe (PID: 5812 cmdline: dw20.exe -x -s 2508 MD5: 8D10DA8A3E11747E51F23C882C22BBC3)
      • vbc.exe (PID: 2344 cmdline: C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext 'C:\Users\user\AppData\Local\Temp\holdermail.txt' MD5: C63ED21D5706A527419C9FBD730FFB2E)
        • WerFault.exe (PID: 5868 cmdline: C:\Windows\SysWOW64\WerFault.exe -u -p 2344 -s 184 MD5: 9E2B8ACAD48ECCA55C0230D63623661B)
      • vbc.exe (PID: 1332 cmdline: C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext 'C:\Users\user\AppData\Local\Temp\holderwb.txt' MD5: C63ED21D5706A527419C9FBD730FFB2E)
        • WerFault.exe (PID: 2920 cmdline: C:\Windows\SysWOW64\WerFault.exe -u -p 1332 -s 176 MD5: 9E2B8ACAD48ECCA55C0230D63623661B)
  • cleanup

Malware Configuration

Threatname: HawkEye

{"Modules": ["WebBrowserPassView", "mailpv", "Mail PassView"], "Version": ""}

Yara Overview

Memory Dumps

SourceRuleDescriptionAuthorStrings
00000003.00000002.263722920.0000000000402000.00000040.00000001.sdmpRAT_HawkEyeDetects HawkEye RATKevin Breen <kevin@techanarchy.net>
  • 0x7b6b3:$key: HawkEyeKeylogger
  • 0x7d91d:$salt: 099u787978786
  • 0x7bd10:$string1: HawkEye_Keylogger
  • 0x7cb4f:$string1: HawkEye_Keylogger
  • 0x7d87d:$string1: HawkEye_Keylogger
  • 0x7c0e5:$string2: holdermail.txt
  • 0x7c105:$string2: holdermail.txt
  • 0x7c027:$string3: wallet.dat
  • 0x7c03f:$string3: wallet.dat
  • 0x7c055:$string3: wallet.dat
  • 0x7d441:$string4: Keylog Records
  • 0x7d759:$string4: Keylog Records
  • 0x7d975:$string5: do not script -->
  • 0x7b69b:$string6: \pidloc.txt
  • 0x7b729:$string7: BSPLIT
  • 0x7b739:$string7: BSPLIT
00000003.00000002.263722920.0000000000402000.00000040.00000001.sdmpJoeSecurity_MailPassViewYara detected MailPassViewJoe Security
    00000003.00000002.263722920.0000000000402000.00000040.00000001.sdmpJoeSecurity_HawkEyeYara detected HawkEye KeyloggerJoe Security
      00000003.00000002.263722920.0000000000402000.00000040.00000001.sdmpJoeSecurity_WebBrowserPassViewYara detected WebBrowserPassView password recovery toolJoe Security
        00000003.00000002.263722920.0000000000402000.00000040.00000001.sdmpHawkeyedetect HawkEye in memoryJPCERT/CC Incident Response Group
        • 0x7bd68:$hawkstr1: HawkEye Keylogger
        • 0x7cb95:$hawkstr1: HawkEye Keylogger
        • 0x7cec4:$hawkstr1: HawkEye Keylogger
        • 0x7d01f:$hawkstr1: HawkEye Keylogger
        • 0x7d182:$hawkstr1: HawkEye Keylogger
        • 0x7d419:$hawkstr1: HawkEye Keylogger
        • 0x7b8da:$hawkstr2: Dear HawkEye Customers!
        • 0x7cf17:$hawkstr2: Dear HawkEye Customers!
        • 0x7d06e:$hawkstr2: Dear HawkEye Customers!
        • 0x7d1d5:$hawkstr2: Dear HawkEye Customers!
        • 0x7b9fb:$hawkstr3: HawkEye Logger Details:
        Click to see the 220 entries

        Unpacked PEs

        SourceRuleDescriptionAuthorStrings
        17.2.WindowsUpdate.exe.2200000.1.raw.unpackRAT_HawkEyeDetects HawkEye RATKevin Breen <kevin@techanarchy.net>
        • 0x7b8b3:$key: HawkEyeKeylogger
        • 0x7db1d:$salt: 099u787978786
        • 0x7bf10:$string1: HawkEye_Keylogger
        • 0x7cd4f:$string1: HawkEye_Keylogger
        • 0x7da7d:$string1: HawkEye_Keylogger
        • 0x7c2e5:$string2: holdermail.txt
        • 0x7c305:$string2: holdermail.txt
        • 0x7c227:$string3: wallet.dat
        • 0x7c23f:$string3: wallet.dat
        • 0x7c255:$string3: wallet.dat
        • 0x7d641:$string4: Keylog Records
        • 0x7d959:$string4: Keylog Records
        • 0x7db75:$string5: do not script -->
        • 0x7b89b:$string6: \pidloc.txt
        • 0x7b929:$string7: BSPLIT
        • 0x7b939:$string7: BSPLIT
        17.2.WindowsUpdate.exe.2200000.1.raw.unpackJoeSecurity_MailPassViewYara detected MailPassViewJoe Security
          17.2.WindowsUpdate.exe.2200000.1.raw.unpackJoeSecurity_HawkEyeYara detected HawkEye KeyloggerJoe Security
            17.2.WindowsUpdate.exe.2200000.1.raw.unpackJoeSecurity_WebBrowserPassViewYara detected WebBrowserPassView password recovery toolJoe Security
              20.2.WindowsUpdate.exe.7d0000.1.raw.unpackRAT_HawkEyeDetects HawkEye RATKevin Breen <kevin@techanarchy.net>
              • 0x7b8b3:$key: HawkEyeKeylogger
              • 0x7db1d:$salt: 099u787978786
              • 0x7bf10:$string1: HawkEye_Keylogger
              • 0x7cd4f:$string1: HawkEye_Keylogger
              • 0x7da7d:$string1: HawkEye_Keylogger
              • 0x7c2e5:$string2: holdermail.txt
              • 0x7c305:$string2: holdermail.txt
              • 0x7c227:$string3: wallet.dat
              • 0x7c23f:$string3: wallet.dat
              • 0x7c255:$string3: wallet.dat
              • 0x7d641:$string4: Keylog Records
              • 0x7d959:$string4: Keylog Records
              • 0x7db75:$string5: do not script -->
              • 0x7b89b:$string6: \pidloc.txt
              • 0x7b929:$string7: BSPLIT
              • 0x7b939:$string7: BSPLIT