| File name: | Installer_Regwork.exe.7z |
| Full analysis: | https://app.any.run/tasks/bfefa167-6dde-4c84-9cba-5c599b61556a |
| Verdict: | Malicious activity |
| Threats: | A loader is malicious software that infiltrates devices to deliver malicious payloads. This malware is capable of infecting victims’ computers, analyzing their system information, and installing other types of threats, such as trojans or stealers. Criminals usually deliver loaders through phishing emails and links by relying on social engineering to trick users into downloading and running their executables. Loaders employ advanced evasion and persistence tactics to avoid detection. |
| Analysis date: | December 15, 2023, 19:39:25 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-7z-compressed |
| File info: | 7-zip archive data, version 0.4 |
| MD5: | 6F3D17F046C3B043C79F678CD58C413B |
| SHA1: | 9237EE7DB9C592E2D98C6975402D59AF78B33127 |
| SHA256: | 0123FFB9C0B8FDC947EAFCD79076FEBDE833A80E34D9204218D4F6622D55A3B7 |
| SSDEEP: | 98304:L/I152PiGfLhQP61l9tmWKxdW/59yqxvuYVpsVfmKAGceQhLSaNOOKrchydwqybr:ndJI0a |
MALICIOUS
Drops the executable file immediately after the start
- Installer_Regwork.exe (PID: 3924)
- BACKUPDUTYLITE_INSTALLER.EXE (PID: 2988)
- FILESOPENEDINSTALLER.EXE (PID: 3916)
- cmd.exe (PID: 2968)
Changes the autorun value in the registry
- RegWork.exe (PID: 3668)
SUSPICIOUS
Malware-specific behavior (creating "System.dll" in Temp)
- Installer_Regwork.exe (PID: 3924)
- FILESOPENEDINSTALLER.EXE (PID: 3916)
The process creates files with name similar to system file names
- Installer_Regwork.exe (PID: 3924)
- BACKUPDUTYLITE_INSTALLER.EXE (PID: 2988)
- FILESOPENEDINSTALLER.EXE (PID: 3916)
Starts CMD.EXE for commands execution
- Installer_Regwork.exe (PID: 3924)
- BACKUPDUTYLITE_INSTALLER.EXE (PID: 2988)
- FILESOPENEDINSTALLER.EXE (PID: 3916)
The process drops C-runtime libraries
- Installer_Regwork.exe (PID: 3924)
Process drops legitimate windows executable
- Installer_Regwork.exe (PID: 3924)
Reads the Internet Settings
- Installer_Regwork.exe (PID: 3924)
- RegWork.exe (PID: 3668)
Process requests binary or script from the Internet
- Installer_Regwork.exe (PID: 3924)
INFO
Manual execution by a user
- Installer_Regwork.exe (PID: 3924)
- Installer_Regwork.exe (PID: 1352)
- wmpnscfg.exe (PID: 3156)
Drops the executable file immediately after the start
- WinRAR.exe (PID: 1864)
Checks supported languages
- Installer_Regwork.exe (PID: 3924)
- CUSTOM_ZASKCHECKER.EXE (PID: 3112)
- BACKUPDUTYLITE_INSTALLER.EXE (PID: 2988)
- BackUpDutyLite.exe (PID: 3684)
- FILESOPENEDINSTALLER.EXE (PID: 3916)
- wmpnscfg.exe (PID: 3156)
- RegWork.exe (PID: 3668)
Reads the computer name
- Installer_Regwork.exe (PID: 3924)
- BACKUPDUTYLITE_INSTALLER.EXE (PID: 2988)
- BackUpDutyLite.exe (PID: 3684)
- FILESOPENEDINSTALLER.EXE (PID: 3916)
- wmpnscfg.exe (PID: 3156)
- RegWork.exe (PID: 3668)
Create files in a temporary directory
- Installer_Regwork.exe (PID: 3924)
- BACKUPDUTYLITE_INSTALLER.EXE (PID: 2988)
- FILESOPENEDINSTALLER.EXE (PID: 3916)
The executable file from the user directory is run by the CMD process
- CUSTOM_ZASKCHECKER.EXE (PID: 3112)
- BACKUPDUTYLITE_INSTALLER.EXE (PID: 2988)
- FILESOPENEDINSTALLER.EXE (PID: 3916)
Creates files in the program directory
- Installer_Regwork.exe (PID: 3924)
- BACKUPDUTYLITE_INSTALLER.EXE (PID: 2988)
- FILESOPENEDINSTALLER.EXE (PID: 3916)
- RegWork.exe (PID: 3668)
- cmd.exe (PID: 2968)
Checks proxy server information
- Installer_Regwork.exe (PID: 3924)
Reads Environment values
- FILESOPENEDINSTALLER.EXE (PID: 3916)
Creates files or folders in the user directory
- BACKUPDUTYLITE_INSTALLER.EXE (PID: 2988)
- Installer_Regwork.exe (PID: 3924)
- RegWork.exe (PID: 3668)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .7z | | | 7-Zip compressed archive (v0.4) (57.1) |
|---|---|---|
| .7z | | | 7-Zip compressed archive (gen) (42.8) |
Total processes
61
Monitored processes
15
Malicious processes
4
Suspicious processes
2
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1352 | "C:\Users\admin\Desktop\Installer_Regwork.exe" | C:\Users\admin\Desktop\Installer_Regwork.exe | — | explorer.exe | |||||||||||
User: admin Integrity Level: MEDIUM Exit code: 3221226540 Modules
| |||||||||||||||
| 1864 | "C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\Installer_Regwork.exe.7z" | C:\Program Files\WinRAR\WinRAR.exe | — | explorer.exe | |||||||||||
User: admin Company: Alexander Roshal Integrity Level: MEDIUM Description: WinRAR archiver Exit code: 0 Version: 5.91.0 Modules
| |||||||||||||||
| 1936 | C:\Windows\system32\cmd.exe /C "C:\Users\admin\Local Settings\Temp\RegWork\custom_zaskchecker.exe" | C:\Windows\System32\cmd.exe | — | Installer_Regwork.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 2520 | C:\Windows\system32\cmd.exe /C "C:\Users\admin\Local Settings\Temp\RegWork\BackUpDutyLite_Installer.exe" /S | C:\Windows\System32\cmd.exe | — | Installer_Regwork.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 2968 | C:\Windows\system32\cmd.exe /C COPY "C:\Program Files\Files Opened\FilesOpened.ex1" /B + "C:\Program Files\Files Opened\FilesOpened.ex2" /B "C:\Program Files\Files Opened\FilesOpened.exe" /B | C:\Windows\System32\cmd.exe | — | FILESOPENEDINSTALLER.EXE | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 2988 | "C:\Users\admin\Local Settings\Temp\RegWork\BackUpDutyLite_Installer.exe" /S | C:\Users\admin\AppData\Local\Temp\RegWork\BACKUPDUTYLITE_INSTALLER.EXE | — | cmd.exe | |||||||||||
User: admin Integrity Level: HIGH Exit code: 0 Modules
| |||||||||||||||
| 3092 | C:\Windows\system32\cmd.exe /C "C:\Users\admin\Local Settings\Temp\RegWork\filesopenedinstaller.exe" /S | C:\Windows\System32\cmd.exe | — | Installer_Regwork.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 3112 | "C:\Users\admin\Local Settings\Temp\RegWork\custom_zaskchecker.exe" | C:\Users\admin\AppData\Local\Temp\RegWork\CUSTOM_ZASKCHECKER.EXE | — | cmd.exe | |||||||||||
User: admin Integrity Level: HIGH Exit code: 0 Modules
| |||||||||||||||
| 3156 | "C:\Program Files\Windows Media Player\wmpnscfg.exe" | C:\Program Files\Windows Media Player\wmpnscfg.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Media Player Network Sharing Service Configuration Application Exit code: 0 Version: 12.0.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3276 | C:\Windows\system32\cmd.exe /C "C:\Users\admin\Local Settings\Temp\RegWork\ApnToolbarInstaller.exe" /tbr /sa /hpr toolbar=BCPA | C:\Windows\System32\cmd.exe | — | Installer_Regwork.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 1 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
Total events
4 215
Read events
4 164
Write events
51
Delete events
0
Modification events
| (PID) Process: | (1864) WinRAR.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\17F\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (1864) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 2 |
Value: C:\Users\admin\Desktop\virtio_ivshmem_master_build.zip | |||
| (PID) Process: | (1864) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 1 |
Value: C:\Users\admin\Desktop\Win7-KB3191566-x86.zip | |||
| (PID) Process: | (1864) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 0 |
Value: C:\Users\admin\Desktop\phacker.zip | |||
| (PID) Process: | (1864) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | name |
Value: 120 | |||
| (PID) Process: | (1864) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | size |
Value: 80 | |||
| (PID) Process: | (1864) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | type |
Value: 120 | |||
| (PID) Process: | (1864) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | mtime |
Value: 100 | |||
| (PID) Process: | (1864) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface\MainWin |
| Operation: | write | Name: | Placement |
Value: 2C0000000000000001000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF42000000420000000204000037020000 | |||
| (PID) Process: | (1864) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\General |
| Operation: | write | Name: | LastFolder |
Value: C:\Users\admin\Desktop | |||
Executable files
28
Suspicious files
11
Text files
5
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3924 | Installer_Regwork.exe | C:\Users\admin\AppData\Local\Temp\nsm4C4B.tmp\ioSpecial.ini | text | |
MD5:E2D5070BC28DB1AC745613689FF86067 | SHA256:D95AED234F932A1C48A2B1B0D98C60CA31F962310C03158E2884AB4DDD3EA1E0 | |||
| 3924 | Installer_Regwork.exe | C:\Users\admin\AppData\Local\Temp\nsm4C4B.tmp\modern-wizard.bmp | image | |
MD5:CBE40FD2B1EC96DAEDC65DA172D90022 | SHA256:3AD2DC318056D0A2024AF1804EA741146CFC18CC404649A44610CBF8B2056CF2 | |||
| 3924 | Installer_Regwork.exe | C:\Users\admin\AppData\Local\Temp\nsm4C4B.tmp\ExecCmd.dll | executable | |
MD5:B9380B0BEA8854FD9F93CC1FDA0DFEAC | SHA256:1F4BD9C9376FE1B6913BAECA7FB6DF6467126F27C9C2FE038206567232A0E244 | |||
| 3924 | Installer_Regwork.exe | C:\Program Files\RegWork\RegWork.exe | executable | |
MD5:2780DD304C2701358F92B74AC8EAE51F | SHA256:07DA3A4728F336CB377D5DD8052BE08703AC2416A34FFB67C26A61482AFA7D43 | |||
| 3924 | Installer_Regwork.exe | C:\Users\admin\AppData\Local\Temp\nsm4C4B.tmp\System.dll | executable | |
MD5:C17103AE9072A06DA581DEC998343FC1 | SHA256:DC58D8AD81CACB0C1ED72E33BFF8F23EA40B5252B5BB55D393A0903E6819AE2F | |||
| 3924 | Installer_Regwork.exe | C:\Program Files\RegWork\RegWorkStartUpService.exe | executable | |
MD5:A1809830A96974BC29093EF81BF9C83D | SHA256:0523EFECF98D157FCF3F0EA25892C404223BA6525FC85A75133541020FC4A644 | |||
| 1864 | WinRAR.exe | C:\Users\admin\Desktop\Installer_Regwork.exe | executable | |
MD5:B440EAC5600B169BE51F5FB8411B2910 | SHA256:1E7E67DE997272ADBFE616C040D5C835AF728980A648333CA96A267D84093A0B | |||
| 3924 | Installer_Regwork.exe | C:\Users\admin\AppData\Local\Temp\nsm4C4B.tmp\nsDialogs.dll | executable | |
MD5:C10E04DD4AD4277D5ADC951BB331C777 | SHA256:E31AD6C6E82E603378CB6B80E67D0E0DCD9CF384E1199AC5A65CB4935680021A | |||
| 3924 | Installer_Regwork.exe | C:\Program Files\RegWork\mfcm90u.dll | executable | |
MD5:371226B8346F29011137C7AA9E93F2F6 | SHA256:5B08FE55E4BBF2FBFD405E2477E023137CFCEB4D115650A5668269C03300A8F8 | |||
| 3924 | Installer_Regwork.exe | C:\Program Files\RegWork\msvcm90.dll | executable | |
MD5:4A8BC195ABDC93F0DB5DAB7F5093C52F | SHA256:B371AF3CE6CB5D0B411919A188D5274DF74D5EE49F6DD7B1CCB5A31466121A18 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
5
DNS requests
2
Threats
4
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
3924 | Installer_Regwork.exe | GET | 200 | 54.231.194.201:80 | http://regwork.s3.amazonaws.com/filesopenedinstaller.exe | unknown | executable | 151 Kb | — |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:138 | — | — | — | unknown |
2588 | svchost.exe | 239.255.255.250:1900 | — | — | — | unknown |
4 | System | 192.168.100.255:137 | — | — | — | unknown |
1080 | svchost.exe | 224.0.0.252:5355 | — | — | — | unknown |
3924 | Installer_Regwork.exe | 54.231.194.201:80 | regwork.s3.amazonaws.com | AMAZON-02 | US | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
apnmedia.ask.com |
| unknown |
regwork.s3.amazonaws.com |
| unknown |
Threats
PID | Process | Class | Message |
|---|---|---|---|
— | — | Potentially Bad Traffic | ET POLICY Executable served from Amazon S3 |
— | — | Potential Corporate Privacy Violation | ET POLICY PE EXE or DLL Windows file download HTTP |
2 ETPRO signatures available at the full report