Loading ...

Play interactive tourEdit tour

Analysis Report PO9048899AUG13.exe

Overview

General Information

Sample Name:PO9048899AUG13.exe
Analysis ID:266939
MD5:73fa9bfb100fa4d8304fef98446d2b62
SHA1:1ee7c475c40a82dfa230e26669aed12271778f49
SHA256:9af42638628323098b6873eee65103c97fa1ff971d6640323ab4a5290edc71c2

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)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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)
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 Keylogger Generic
Yara detected WebBrowserPassView password recovery tool
AV process strings found (often used to terminate AV products)
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 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 DirectInput object (often for capturing keystrokes)
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 inlined nop instructions (likely shell or obfuscated code)
Found potential string decryption / allocating functions
HTTP GET or POST without a user agent
May infect USB drives
May sleep (evasive loops) to hinder dynamic analysis
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
Sigma detected: Suspicious Process Creation
Stores large binary data to the registry
Tries to load missing DLLs
Uses SMTP (mail sending)
Uses code obfuscation techniques (call, push, ret)
Yara signature match

Classification

Startup

  • System is w10x64
  • PO9048899AUG13.exe (PID: 6844 cmdline: 'C:\Users\user\Desktop\PO9048899AUG13.exe' MD5: 73FA9BFB100FA4D8304FEF98446D2B62)
    • PO9048899AUG13.exe (PID: 4808 cmdline: 'C:\Users\user\Desktop\PO9048899AUG13.exe' MD5: 73FA9BFB100FA4D8304FEF98446D2B62)
      • Windows Update.exe (PID: 4604 cmdline: 'C:\Users\user\AppData\Roaming\Windows Update.exe' MD5: 73FA9BFB100FA4D8304FEF98446D2B62)
        • Windows Update.exe (PID: 6800 cmdline: 'C:\Users\user\AppData\Roaming\Windows Update.exe' MD5: 73FA9BFB100FA4D8304FEF98446D2B62)
          • dw20.exe (PID: 6784 cmdline: dw20.exe -x -s 2464 MD5: 8D10DA8A3E11747E51F23C882C22BBC3)
          • vbc.exe (PID: 6980 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: 5124 cmdline: C:\Windows\SysWOW64\WerFault.exe -u -p 6980 -s 704 MD5: 9E2B8ACAD48ECCA55C0230D63623661B)
          • vbc.exe (PID: 6976 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: 980 cmdline: C:\Windows\SysWOW64\WerFault.exe -u -p 6800 -s 2464 MD5: 9E2B8ACAD48ECCA55C0230D63623661B)
  • WindowsUpdate.exe (PID: 6316 cmdline: 'C:\Users\user\AppData\Roaming\WindowsUpdate.exe' MD5: 73FA9BFB100FA4D8304FEF98446D2B62)
  • WindowsUpdate.exe (PID: 6660 cmdline: 'C:\Users\user\AppData\Roaming\WindowsUpdate.exe' MD5: 73FA9BFB100FA4D8304FEF98446D2B62)
    • WindowsUpdate.exe (PID: 6860 cmdline: 'C:\Users\user\AppData\Roaming\WindowsUpdate.exe' MD5: 73FA9BFB100FA4D8304FEF98446D2B62)
      • Windows Update.exe (PID: 5880 cmdline: 'C:\Users\user\AppData\Roaming\Windows Update.exe' MD5: 73FA9BFB100FA4D8304FEF98446D2B62)
        • Windows Update.exe (PID: 5480 cmdline: 'C:\Users\user\AppData\Roaming\Windows Update.exe' MD5: 73FA9BFB100FA4D8304FEF98446D2B62)
          • dw20.exe (PID: 6644 cmdline: dw20.exe -x -s 2660 MD5: 8D10DA8A3E11747E51F23C882C22BBC3)
          • vbc.exe (PID: 344 cmdline: C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext 'C:\Users\user\AppData\Local\Temp\holdermail.txt' MD5: C63ED21D5706A527419C9FBD730FFB2E)
          • vbc.exe (PID: 6464 cmdline: C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext 'C:\Users\user\AppData\Local\Temp\holderwb.txt' MD5: C63ED21D5706A527419C9FBD730FFB2E)
  • WindowsUpdate.exe (PID: 396 cmdline: 'C:\Users\user\AppData\Roaming\WindowsUpdate.exe' MD5: 73FA9BFB100FA4D8304FEF98446D2B62)
  • WindowsUpdate.exe (PID: 5192 cmdline: 'C:\Users\user\AppData\Roaming\WindowsUpdate.exe' MD5: 73FA9BFB100FA4D8304FEF98446D2B62)
    • WindowsUpdate.exe (PID: 6960 cmdline: 'C:\Users\user\AppData\Roaming\WindowsUpdate.exe' MD5: 73FA9BFB100FA4D8304FEF98446D2B62)
  • cleanup

Malware Configuration

Threatname: HawkEye

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

Yara Overview

Memory Dumps

SourceRuleDescriptionAuthorStrings
00000003.00000002.275010684.0000000000402000.00000040.00000001.sdmpRAT_HawkEyeDetects HawkEye RATKevin Breen <kevin@techanarchy.net>
  • 0x7b713:$key: HawkEyeKeylogger
  • 0x7d97d:$salt: 099u787978786
  • 0x7bd70:$string1: HawkEye_Keylogger
  • 0x7cbaf:$string1: HawkEye_Keylogger
  • 0x7d8dd:$string1: HawkEye_Keylogger
  • 0x7c145:$string2: holdermail.txt
  • 0x7c165:$string2: holdermail.txt
  • 0x7c087:$string3: wallet.dat
  • 0x7c09f:$string3: wallet.dat
  • 0x7c0b5:$string3: wallet.dat
  • 0x7d4a1:$string4: Keylog Records
  • 0x7d7b9:$string4: Keylog Records
  • 0x7d9d5:$string5: do not script -->
  • 0x7b6fb:$string6: \pidloc.txt
  • 0x7b789:$string7: BSPLIT
  • 0x7b799:$string7: BSPLIT
00000003.00000002.275010684.0000000000402000.00000040.00000001.sdmpJoeSecurity_MailPassViewYara detected MailPassViewJoe Security
    00000003.00000002.275010684.0000000000402000.00000040.00000001.sdmpJoeSecurity_HawkEyeYara detected HawkEye KeyloggerJoe Security
      00000003.00000002.275010684.0000000000402000.00000040.00000001.sdmpJoeSecurity_WebBrowserPassViewYara detected WebBrowserPassView password recovery toolJoe Security
        00000003.00000002.275010684.0000000000402000.00000040.00000001.sdmpHawkeyedetect HawkEye in memoryJPCERT/CC Incident Response Group
        • 0x7bdc8:$hawkstr1: HawkEye Keylogger
        • 0x7cbf5:$hawkstr1: HawkEye Keylogger
        • 0x7cf24:$hawkstr1: HawkEye Keylogger
        • 0x7d07f:$hawkstr1: HawkEye Keylogger
        • 0x7d1e2:$hawkstr1: HawkEye Keylogger
        • 0x7d479:$hawkstr1: HawkEye Keylogger
        • 0x7b93a:$hawkstr2: Dear HawkEye Customers!
        • 0x7cf77:$hawkstr2: Dear HawkEye Customers!
        • 0x7d0ce:$hawkstr2: Dear HawkEye Customers!
        • 0x7d235:$hawkstr2: Dear HawkEye Customers!
        • 0x7ba5b:$hawkstr3: HawkEye Logger Details:
        Click to see the 232 entries

        Unpacked PEs

        SourceRuleDescriptionAuthorStrings
        0.2.PO9048899AUG13.exe.2710000.2.unpackRAT_HawkEyeDetects HawkEye RATKevin Breen <kevin@techanarchy.net>
        • 0xcd713:$key: HawkEyeKeylogger
        • 0xcf97d:$salt: 099u787978786
        • 0xcdd70:$string1: HawkEye_Keylogger
        • 0xcebaf:$string1: HawkEye_Keylogger
        • 0xcf8dd:$string1: HawkEye_Keylogger
        • 0xce145:$string2: holdermail.txt
        • 0xce165:$string2: holdermail.txt
        • 0xce087:$string3: wallet.dat
        • 0xce09f:$string3: wallet.dat
        • 0xce0b5:$string3: wallet.dat
        • 0xcf4a1:$string4: Keylog Records
        • 0xcf7b9:$string4: Keylog Records
        • 0xcf9d5:$string5: do not script -->
        • 0xcd6fb:$string6: \pidloc.txt
        • 0xcd789:$string7: BSPLIT
        • 0xcd799:$string7: BSPLIT
        0.2.PO9048899AUG13.exe.2710000.2.unpackJoeSecurity_MailPassViewYara detected MailPassViewJoe Security
          0.2.PO9048899AUG13.exe.2710000.2.unpackJoeSecurity_HawkEyeYara detected HawkEye KeyloggerJoe Security
            0.2.PO9048899AUG13.exe.2710000.2.unpackJoeSecurity_WebBrowserPassViewYara detected WebBrowserPassView password recovery toolJoe Security
              0.2.PO9048899AUG13.exe.2710000.2.unpackHawkeyedetect HawkEye in memoryJPCERT/CC Incident Response Group
              • 0xcddc8:$hawkstr1: HawkEye Keylogger
              • 0xcebf5:$hawkstr1: HawkEye Keylogger
              • 0xcef24:$hawkstr1: HawkEye Keylogger
              • 0xcf07f:$hawkstr1: HawkEye Keylogger
              • 0xcf1e2:$hawkstr1: HawkEye Keylogger
              • 0xcf479:$hawkstr1: HawkEye Keylogger
              • 0xcd93a:$hawkstr2: Dear HawkEye Customers!
              • 0xcef77:$hawkstr2: Dear HawkEye Customers!
              • 0xcf0ce:$hawkstr2: Dear HawkEye Customers!
              • 0xcf235:$hawkstr2: Dear HawkEye Customers!
              • 0xcda5b:$hawkstr3: HawkEye Logger Details: