| download: | EZ_BUILDER.EXE |
| Full analysis: | https://app.any.run/tasks/46d86ff3-e5a8-4ab7-a65b-f18fc195ea05 |
| Verdict: | Malicious activity |
| Analysis date: | January 24, 2022, 18:54:54 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | C41A8A18F07932A89A4F0077EAA35D08 |
| SHA1: | E64F17E411C57014B7DF8CF52EE51819543A80E9 |
| SHA256: | 7D6CF44A2DA893C469AF0A39358F3C69DFA7DEE04EDCED7527FE3E881CD1B94C |
| SSDEEP: | 98304:uqXpy05Q0N1rsYSZ6BoXh1kkypSH3Oh5BemgwI:z405QYtsTEB08T8HehLve |
MALICIOUS
Writes to a start menu file
- EZ_BUILDER.EXE (PID: 3692)
Disables Windows Defender
- reg.exe (PID: 2832)
- reg.exe (PID: 2928)
- reg.exe (PID: 3180)
- reg.exe (PID: 3408)
- reg.exe (PID: 3640)
Uses Task Scheduler to run other applications
- cmd.exe (PID: 2584)
Application was dropped or rewritten from another process
- RtkBtManServ.exe (PID: 2972)
Loads the Task Scheduler COM API
- schtasks.exe (PID: 2504)
- schtasks.exe (PID: 2256)
- schtasks.exe (PID: 2612)
- schtasks.exe (PID: 2200)
- schtasks.exe (PID: 1832)
Modifies Windows Defender service settings
- reg.exe (PID: 4016)
Actions looks like stealing of personal data
- RtkBtManServ.exe (PID: 2972)
Steals credentials from Web Browsers
- RtkBtManServ.exe (PID: 2972)
SUSPICIOUS
Executable content was dropped or overwritten
- EZ_BUILDER.EXE (PID: 3692)
- RtkBtManServ.exe (PID: 2972)
Checks supported languages
- EZ_BUILDER.EXE (PID: 3692)
- RtkBtManServ.exe (PID: 2972)
- cmd.exe (PID: 2584)
Reads the computer name
- EZ_BUILDER.EXE (PID: 3692)
- RtkBtManServ.exe (PID: 2972)
Creates files in the user directory
- EZ_BUILDER.EXE (PID: 3692)
Drops a file with a compile date too recent
- EZ_BUILDER.EXE (PID: 3692)
Drops a file that was compiled in debug mode
- RtkBtManServ.exe (PID: 2972)
Starts CMD.EXE for commands execution
- EZ_BUILDER.EXE (PID: 3692)
Uses REG.EXE to modify Windows registry
- cmd.exe (PID: 2584)
Reads Environment values
- RtkBtManServ.exe (PID: 2972)
Creates or modifies windows services
- reg.exe (PID: 1972)
- reg.exe (PID: 2992)
- reg.exe (PID: 304)
- reg.exe (PID: 3788)
Reads the cookies of Mozilla Firefox
- RtkBtManServ.exe (PID: 2972)
INFO
Checks supported languages
- reg.exe (PID: 2736)
- reg.exe (PID: 2832)
- reg.exe (PID: 3728)
- reg.exe (PID: 4064)
- reg.exe (PID: 2928)
- reg.exe (PID: 3180)
- reg.exe (PID: 3408)
- reg.exe (PID: 344)
- reg.exe (PID: 3640)
- reg.exe (PID: 3496)
- reg.exe (PID: 2068)
- reg.exe (PID: 700)
- reg.exe (PID: 3928)
- reg.exe (PID: 976)
- reg.exe (PID: 2164)
- schtasks.exe (PID: 2200)
- schtasks.exe (PID: 2256)
- schtasks.exe (PID: 2612)
- schtasks.exe (PID: 2504)
- reg.exe (PID: 2788)
- reg.exe (PID: 2872)
- reg.exe (PID: 2892)
- reg.exe (PID: 3164)
- schtasks.exe (PID: 1832)
- reg.exe (PID: 1972)
- reg.exe (PID: 304)
- reg.exe (PID: 3788)
- reg.exe (PID: 4016)
- reg.exe (PID: 3236)
- reg.exe (PID: 2992)
Reads the computer name
- schtasks.exe (PID: 1832)
- schtasks.exe (PID: 2612)
- schtasks.exe (PID: 2256)
- schtasks.exe (PID: 2504)
- schtasks.exe (PID: 2200)
Reads settings of System Certificates
- RtkBtManServ.exe (PID: 2972)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win32 Executable MS Visual C++ (generic) (41) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (36.3) |
| .dll | | | Win32 Dynamic Link Library (generic) (8.6) |
| .exe | | | Win32 Executable (generic) (5.9) |
| .exe | | | Win16/32 Executable Delphi generic (2.7) |
EXIF
EXE
| AssemblyVersion: | 1.0.0.0 |
|---|---|
| ProductVersion: | 1.0.0.0 |
| OriginalFileName: | Obfuscated Name.exe |
| LegalCopyright: | |
| InternalName: | Obfuscated Name.exe |
| FileVersion: | 1.0.0.0 |
| FileDescription: | |
| CharacterSet: | Unicode |
| LanguageCode: | Neutral |
| FileSubtype: | - |
| ObjectFileType: | Executable application |
| FileOS: | Win32 |
| FileFlags: | (none) |
| FileFlagsMask: | 0x003f |
| ProductVersionNumber: | 1.0.0.0 |
| FileVersionNumber: | 1.0.0.0 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0x31600a |
| UninitializedDataSize: | - |
| InitializedDataSize: | 116224 |
| CodeSize: | 3086848 |
| LinkerVersion: | 11 |
| PEType: | PE32 |
| TimeStamp: | 2022:01:24 19:48:50+01:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 24-Jan-2022 18:48:50 |
| FileDescription: | - |
| FileVersion: | 1.0.0.0 |
| InternalName: | Obfuscated Name.exe |
| LegalCopyright: | - |
| OriginalFilename: | Obfuscated Name.exe |
| ProductVersion: | 1.0.0.0 |
| Assembly Version: | 1.0.0.0 |
DOS Header
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x0090 |
| Pages in file: | 0x0003 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x0000 |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x0000 |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x00000080 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 5 |
| Time date stamp: | 24-Jan-2022 18:48:50 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Sections
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
1\x14luNqS?8 | 0x00002000 | 0x00002038 | 0x00002200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.97782 |
.text | 0x00006000 | 0x002F1750 | 0x002F1800 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 7.98846 |
.rsrc | 0x002F8000 | 0x0001A108 | 0x0001A200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 7.95356 |
.reloc | 0x00314000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.0980042 |
0x00316000 | 0x00000010 | 0x00000200 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 0.714934 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.00112 | 490 | UNKNOWN | UNKNOWN | RT_MANIFEST |
2 | 7.97505 | 97930 | UNKNOWN | UNKNOWN | RT_ICON |
3 | 7.94358 | 4403 | UNKNOWN | UNKNOWN | RT_ICON |
4 | 7.89558 | 2111 | UNKNOWN | UNKNOWN | RT_ICON |
5 | 7.54745 | 691 | UNKNOWN | UNKNOWN | RT_ICON |
32512 | 2.43388 | 62 | UNKNOWN | UNKNOWN | RT_GROUP_ICON |
Imports
mscoree.dll |
Total processes
71
Monitored processes
33
Malicious processes
2
Suspicious processes
7
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 304 | reg add "HKLM\System\CurrentControlSet\Services\WdNisDrv" /v "Start" /t REG_DWORD /d "4" /f | C:\Windows\system32\reg.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Registry Console Tool Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 344 | reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Reporting" /v "DisableEnhancedNotifications" /t REG_DWORD /d "1" /f | C:\Windows\system32\reg.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Registry Console Tool Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 700 | reg add "HKLM\Software\Policies\Microsoft\Windows Defender\SpyNet" /v "DisableBlockAtFirstSeen" /t REG_DWORD /d "1" /f-� | C:\Windows\system32\reg.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Registry Console Tool Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 976 | reg add "HKLM\System\CurrentControlSet\Control\WMI\Autologger\DefenderApiLogger" /v "Start" /t REG_DWORD /d "0" /f | C:\Windows\system32\reg.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Registry Console Tool Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1832 | schtasks /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Cache Maintenance" /Disable | C:\Windows\system32\schtasks.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Manages scheduled tasks Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1972 | reg add "HKLM\System\CurrentControlSet\Services\WdFilter" /v "Start" /t REG_DWORD /d "4" /f | C:\Windows\system32\reg.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Registry Console Tool Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2068 | reg add "HKLM\Software\Policies\Microsoft\Windows Defender\SpyNet" /v "SubmitSamplesConsent" /t REG_DWORD /d "2" /f | C:\Windows\system32\reg.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Registry Console Tool Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2164 | reg add "HKLM\System\CurrentControlSet\Control\WMI\Autologger\DefenderAuditLogger" /v "Start" /t REG_DWORD /d "0" /f | C:\Windows\system32\reg.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Registry Console Tool Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2200 | schtasks /Change /TN "Microsoft\Windows\ExploitGuard\ExploitGuard MDM policy Refresh" /Disable | C:\Windows\system32\schtasks.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Manages scheduled tasks Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2256 | schtasks /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Cleanup" /Disable | C:\Windows\system32\schtasks.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Manages scheduled tasks Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
4 181
Read events
4 127
Write events
52
Delete events
2
Modification events
| (PID) Process: | (3692) EZ_BUILDER.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (3692) EZ_BUILDER.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (3692) EZ_BUILDER.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (3692) EZ_BUILDER.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (2736) reg.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-time Protection |
| Operation: | delete key | Name: | (default) |
Value: | |||
| (PID) Process: | (2736) reg.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender |
| Operation: | delete key | Name: | (default) |
Value: | |||
| (PID) Process: | (2832) reg.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender |
| Operation: | write | Name: | DisableAntiSpyware |
Value: 1 | |||
| (PID) Process: | (3728) reg.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender |
| Operation: | write | Name: | DisableAntiVirus |
Value: 1 | |||
| (PID) Process: | (4064) reg.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\MpEngine |
| Operation: | write | Name: | MpEnablePus |
Value: 0 | |||
| (PID) Process: | (2928) reg.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection |
| Operation: | write | Name: | DisableBehaviorMonitoring |
Value: 1 | |||
Executable files
8
Suspicious files
19
Text files
6
Unknown types
3
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3692 | EZ_BUILDER.EXE | C:\Users\admin\AppData\Local\Temp\config | binary | |
MD5:1BA367D0F9AAC0F650E65AB7401776C0 | SHA256:68C4EC552C98F3B5A4744E4EEFADD6364DC8075C2E718B7BCBFC76625AA60D03 | |||
| 3692 | EZ_BUILDER.EXE | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Update Manager529878.exe | executable | |
MD5:— | SHA256:— | |||
| 2972 | RtkBtManServ.exe | C:\Users\admin\AppData\Local\Temp\splwow64.exe | executable | |
MD5:0D8360781E488E250587A17FBEFA646C | SHA256:EBFF7D07EFDA7245192CE6ECD7767578152B515B510C887CA2880A2566071F64 | |||
| 2972 | RtkBtManServ.exe | C:\Users\admin\AppData\Local\Temp\costura.costura.dll.compressed | binary | |
MD5:9AB99399CB17964E3E30B7DDEB6BB8B9 | SHA256:BDFED3E39A17DBC95D43FC5141904414A62E8B459F338F65A2F1C3D1FACDDD2F | |||
| 2972 | RtkBtManServ.exe | C:\Users\admin\AppData\Local\Temp\winhlp32.exe | executable | |
MD5:A776E68F497C996788B406A3DC5089EB | SHA256:071E26DDF5323DD9ED6671BCDE89DF73D78BAC2336070E6CB9E3E4B93BDE78D1 | |||
| 2972 | RtkBtManServ.exe | C:\Users\admin\AppData\Local\Temp\bfsvc.exe | executable | |
MD5:899D3ED011EB58459B8A4FC2B81F0924 | SHA256:5E3F311AE67F046B56435067BCDD39FBF836FA0421FBC8C8B0E43E8E47524954 | |||
| 2972 | RtkBtManServ.exe | C:\Users\admin\AppData\Local\Temp\hh.exe | executable | |
MD5:4D4C98ECA32B14AEB074DB34CD0881E4 | SHA256:4182172A01BDFC08C5CF7E8652F7D9D81858345A770E2B6B507840E4C1C7764F | |||
| 2972 | RtkBtManServ.exe | C:\Users\admin\AppData\Local\Temp\snuvcdsm.exe | executable | |
MD5:053778713819BEAB3DF309DF472787CD | SHA256:F999357A17E672E87FBED66D14BA2BEBD6FB04E058A1AAE0F0FDC49A797F58FE | |||
| 2972 | RtkBtManServ.exe | C:\Users\admin\AppData\Local\Temp\costura.costura.pdb.compressed | binary | |
MD5:312D7FB154A11451797FC9D960764CC6 | SHA256:59E46FB42446344107164FBAFAC1E5224C2731E6F8E031CC40CF02B3F599476C | |||
| 2972 | RtkBtManServ.exe | C:\Users\admin\AppData\Local\Temp\costura.discord.net.core.dll.compressed | binary | |
MD5:4104898CA34FEBB688ED63812EFE8CF4 | SHA256:265850B1887F252E04C54F81EF872587B3CFD66B0D708621D2520BC6D4BBDCAC | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
2
DNS requests
2
Threats
1
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2972 | RtkBtManServ.exe | 162.159.138.232:443 | discord.com | Cloudflare Inc | — | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
itroublvehacker.gq |
| whitelisted |
discord.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
— | — | Potentially Bad Traffic | ET INFO DNS Query for Suspicious .gq Domain |