PDF malware analysis — malicious · 001353caf1d89135

MALICIOUS

PDF

97.9 KB Created: 2020-11-18 08:09:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 650e6f9b662274d98a872e0141f55eea SHA-1: 1c3357a08d4ad94e0e86069549983952bcfbfae0 SHA-256: 001353caf1d8913544ffa01b3ddfba1a96103e7a1d940bd4dc346790e14cfbb7

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, many pointing to seemingly benign content, but one URL, https://trafficel.ru/aws?utm_term=series+parallel+circuit+worksheet%2523+2, is flagged as suspicious. The heuristic PDF_SEO_LINK_FARM indicates a large number of external links, suggesting a link farm or a method to distribute malicious content. ClamAV detection and ML classification strongly indicate malicious intent, likely related to phishing or malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 5

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://trafficel.ru/aws?utm_term=series+parallel+circuit+worksheet%2523+2
- https://sufewusog.weebly.com/uploads/1/3/4/6/134644796/52acfbd.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/22b7c0f4-393e-44fd-b7f8-d9134a8008a3/zerofitixupirulitezado.pdf
- https://s3.amazonaws.com/jolituzoji/what_is_depth_of_knowledge_levels.pdf
- https://uploads.strikinglycdn.com/files/1e47c7b1-f7c7-40ee-97df-722630f629d1/como_besar_por_primera_vez.pdf
- https://uploads.strikinglycdn.com/files/5d2c7560-09ad-4c85-aeb0-3599412d500b/tikejanamunositu.pdf
- https://s3.amazonaws.com/jezobasit/82921269107.pdf
- https://uploads.strikinglycdn.com/files/cb14c7c8-0910-4b28-856f-bcaabff1afe9/banuvuriputa.pdf
- https://s3.amazonaws.com/megelugik/94977419182.pdf
- https://s3.amazonaws.com/dozuga/16766889780.pdf
- https://s3.amazonaws.com/petikamov/72419021620.pdf
- https://s3.amazonaws.com/pogolo/dowavutesekewesodoxi.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00014414.bin` `b9b6fc807760398f9a8278a61df589b5abca6305c8af991a3bac4d9eb40ef79c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14414	5280 bytes
`font_01_sfnt_off00015610.bin` `bccd853bf9f0e41f140a3ee511feb2e3cf442f727470bb993ab5e24705afa098`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x15610	10892 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.