| File name: | Complaint-Letter-1192979299-03102021.zip |
| Full analysis: | https://app.any.run/tasks/3c9b83b6-f8e4-4e0c-b130-53b889d727ba |
| 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: | March 10, 2021, 17:40:22 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/zip |
| File info: | Zip archive data, at least v2.0 to extract |
| MD5: | A89C41E566E06BFEAAAC5461982DF1E0 |
| SHA1: | 8986158D49EDBCDE01ABB6A0E631D506C598BF97 |
| SHA256: | FC9E9709C58942C242C8DE505F5812BBA13BFED378B9F35A1E038A5BCDF6F07A |
| SSDEEP: | 1536:TRpKgtSXzrGu1pazS/rysp4cVRIeVqHUDe:FpAXJ1EirDplVXqSe |
MALICIOUS
Loads dropped or rewritten executable
- rundll32.exe (PID: 2896)
- rundll32.exe (PID: 2204)
- rundll32.exe (PID: 2928)
- rundll32.exe (PID: 2232)
Executable content was dropped or overwritten
- EXCEL.EXE (PID: 1596)
QBOT was detected
- rundll32.exe (PID: 2896)
- rundll32.exe (PID: 2204)
- rundll32.exe (PID: 2232)
- rundll32.exe (PID: 2928)
Unusual execution from Microsoft Office
- EXCEL.EXE (PID: 1596)
SUSPICIOUS
Starts Microsoft Office Application
- WinRAR.exe (PID: 1940)
Drops a file that was compiled in debug mode
- EXCEL.EXE (PID: 1596)
Drops a file with too old compile date
- EXCEL.EXE (PID: 1596)
Uses RUNDLL32.EXE to load library
- EXCEL.EXE (PID: 1596)
INFO
Creates files in the user directory
- EXCEL.EXE (PID: 1596)
Reads Microsoft Office registry keys
- EXCEL.EXE (PID: 1596)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .zip | | | ZIP compressed archive (100) |
|---|
EXIF
ZIP
| ZipRequiredVersion: | 20 |
|---|---|
| ZipBitFlag: | - |
| ZipCompression: | Deflated |
| ZipModifyDate: | 2021:03:10 21:47:16 |
| ZipCRC: | 0x9e0cbddc |
| ZipCompressedSize: | 50553 |
| ZipUncompressedSize: | 282624 |
| ZipFileName: | Complaint-Letter-1192979299-03102021.xls |
Total processes
44
Monitored processes
7
Malicious processes
6
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1596 | "C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /dde | C:\Program Files\Microsoft Office\Office14\EXCEL.EXE | WinRAR.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Excel Exit code: 0 Version: 14.0.6024.1000 Modules
| |||||||||||||||
| 1940 | "C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\Complaint-Letter-1192979299-03102021.zip" | C:\Program Files\WinRAR\WinRAR.exe | — | explorer.exe | |||||||||||
User: admin Company: Alexander Roshal Integrity Level: MEDIUM Description: WinRAR archiver Exit code: 0 Version: 5.60.0 Modules
| |||||||||||||||
| 2204 | rundll32 ..\Runtime.brok1,DllRegisterServer | C:\Windows\system32\rundll32.exe | EXCEL.EXE | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2232 | rundll32 ..\Runtime.brok3,DllRegisterServer | C:\Windows\system32\rundll32.exe | EXCEL.EXE | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2896 | rundll32 ..\Runtime.brok,DllRegisterServer | C:\Windows\system32\rundll32.exe | EXCEL.EXE | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2928 | rundll32 ..\Runtime.brok2,DllRegisterServer | C:\Windows\system32\rundll32.exe | EXCEL.EXE | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3660 | rundll32 ..\Runtime.brok4,DllRegisterServer | C:\Windows\system32\rundll32.exe | — | EXCEL.EXE | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
4 942
Read events
4 840
Write events
91
Delete events
11
Modification events
| (PID) Process: | (1940) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes |
| Operation: | write | Name: | ShellExtBMP |
Value: | |||
| (PID) Process: | (1940) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes |
| Operation: | write | Name: | ShellExtIcon |
Value: | |||
| (PID) Process: | (1940) WinRAR.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\13C\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (1940) WinRAR.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\13C\52C64B7E |
| Operation: | write | Name: | @C:\Windows\system32\NetworkExplorer.dll,-1 |
Value: Network | |||
| (PID) Process: | (1940) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 0 |
Value: C:\Users\admin\AppData\Local\Temp\Complaint-Letter-1192979299-03102021.zip | |||
| (PID) Process: | (1940) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | name |
Value: 120 | |||
| (PID) Process: | (1940) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | size |
Value: 80 | |||
| (PID) Process: | (1940) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | type |
Value: 120 | |||
| (PID) Process: | (1940) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | mtime |
Value: 100 | |||
| (PID) Process: | (1940) WinRAR.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage |
| Operation: | write | Name: | EXCELFiles |
Value: 1382678561 | |||
Executable files
8
Suspicious files
1
Text files
1
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1596 | EXCEL.EXE | C:\Users\admin\AppData\Local\Temp\CVRAA65.tmp.cvr | — | |
MD5:— | SHA256:— | |||
| 1596 | EXCEL.EXE | C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\6Z2BCOUL\44265.7367024306[1].dat | executable | |
MD5:— | SHA256:— | |||
| 1940 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$DIa1940.37733\Complaint-Letter-1192979299-03102021.xls | document | |
MD5:— | SHA256:— | |||
| 1596 | EXCEL.EXE | C:\Users\admin\Runtime.brok | executable | |
MD5:— | SHA256:— | |||
| 1596 | EXCEL.EXE | C:\Users\admin\Runtime.brok2 | executable | |
MD5:— | SHA256:— | |||
| 1596 | EXCEL.EXE | C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\6Z2BCOUL\44265.7367024306[2].dat | executable | |
MD5:— | SHA256:— | |||
| 1596 | EXCEL.EXE | C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\6Z2BCOUL\44265.7367024306[3].dat | executable | |
MD5:— | SHA256:— | |||
| 1596 | EXCEL.EXE | C:\Users\admin\Runtime.brok3 | executable | |
MD5:— | SHA256:— | |||
| 1596 | EXCEL.EXE | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Cookies\38UPYU3G.txt | text | |
MD5:— | SHA256:— | |||
| 1596 | EXCEL.EXE | C:\Users\admin\Runtime.brok1 | executable | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
6
TCP/UDP connections
6
DNS requests
9
Threats
12
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
1596 | EXCEL.EXE | GET | 200 | 80.85.156.55:80 | http://lackenbauer.ru/bd/hhvqjrec/44265.7367024306.dat | RU | executable | 505 Kb | malicious |
1596 | EXCEL.EXE | GET | 200 | 65.49.82.7:80 | http://jopo.com/gmaaxbro/44265.7367024306.dat | US | executable | 505 Kb | suspicious |
1596 | EXCEL.EXE | GET | 200 | 107.189.1.162:80 | http://www.thegivingwall.co.uk/jfgolx/44265.7367024306.dat | LU | executable | 505 Kb | suspicious |
1596 | EXCEL.EXE | GET | 404 | 66.235.200.146:80 | http://baxtercode.com/qkhpnucmzts/44265.7367024306.dat | US | html | 6.22 Kb | malicious |
— | — | GET | 200 | 52.109.76.68:80 | http://office14client.microsoft.com/config14?UILCID=1033&CLCID=1033&ILCID=1033&HelpLCID=1033&App={538F6C89-2AD5-4006-8154-C6670774E980}&build=14.0.6023 | IE | xml | 1.99 Kb | whitelisted |
1596 | EXCEL.EXE | GET | 200 | 195.201.179.80:80 | http://www.peacezoneacademy.com/dxsbonlv/44265.7367024306.dat | RU | executable | 505 Kb | malicious |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
1596 | EXCEL.EXE | 80.85.156.55:80 | lackenbauer.ru | Chelyabinsk-Signal LLC | RU | malicious |
1596 | EXCEL.EXE | 195.201.179.80:80 | www.peacezoneacademy.com | Awanti Ltd. | RU | malicious |
1596 | EXCEL.EXE | 65.49.82.7:80 | jopo.com | Hurricane Electric, Inc. | US | suspicious |
1596 | EXCEL.EXE | 107.189.1.162:80 | www.thegivingwall.co.uk | FranTech Solutions | LU | suspicious |
1596 | EXCEL.EXE | 66.235.200.146:80 | baxtercode.com | — | US | malicious |
— | — | 52.109.76.68:80 | office14client.microsoft.com | Microsoft Corporation | IE | suspicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
lackenbauer.ru |
| malicious |
www.peacezoneacademy.com |
| malicious |
jopo.com |
| suspicious |
www.thegivingwall.co.uk |
| suspicious |
baxtercode.com |
| malicious |
dns.msftncsi.com |
| shared |
office14client.microsoft.com |
| whitelisted |
rr.office.microsoft.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
1596 | EXCEL.EXE | Potential Corporate Privacy Violation | ET POLICY PE EXE or DLL Windows file download HTTP |
1596 | EXCEL.EXE | A Network Trojan was detected | ET CURRENT_EVENTS Likely Evil EXE download from MSXMLHTTP non-exe extension M2 |
1596 | EXCEL.EXE | Misc activity | ET INFO EXE - Served Attached HTTP |
1596 | EXCEL.EXE | Potential Corporate Privacy Violation | ET POLICY PE EXE or DLL Windows file download HTTP |
1596 | EXCEL.EXE | A Network Trojan was detected | ET CURRENT_EVENTS Likely Evil EXE download from MSXMLHTTP non-exe extension M2 |
1596 | EXCEL.EXE | Misc activity | ET INFO EXE - Served Attached HTTP |
1596 | EXCEL.EXE | Potential Corporate Privacy Violation | ET POLICY PE EXE or DLL Windows file download HTTP |
1596 | EXCEL.EXE | A Network Trojan was detected | ET CURRENT_EVENTS Likely Evil EXE download from MSXMLHTTP non-exe extension M2 |
1596 | EXCEL.EXE | Misc activity | ET INFO EXE - Served Attached HTTP |
1596 | EXCEL.EXE | Potential Corporate Privacy Violation | ET POLICY PE EXE or DLL Windows file download HTTP |