PDF malware analysis — malicious · 57078b03d00cb8cf

MALICIOUS

PDF

67.3 KB Created: 2020-11-11 21:22:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5ffc9cae5353d3d5cc9fbb06f2882d03 SHA-1: db5a516f4a758387183e6fb61cb85827298c149c SHA-256: 57078b03d00cb8cfc2a6cb41d3ab40dfce1e7f868db40a2d8babecd9b83d3b0f

196 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a large number of external links, indicating a link farm designed to distribute malicious content. The heuristic PDF_SEO_LINK_FARM and the presence of multiple unknown URLs strongly suggest this is a phishing or malware distribution attempt. The ClamAV detection and ML classifier further support its malicious nature. No scripts were extracted, but the overall structure points to a malicious PDF.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 6

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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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://traffset.ru/aws?utm_term=danny+boy+guitar+sheet+music+pdf
- https://jipidonano.weebly.com/uploads/1/3/4/3/134340070/volox.pdf
- https://zalopajozi.weebly.com/uploads/1/3/1/4/131453352/wivov.pdf
- https://rizowexerezo.weebly.com/uploads/1/3/4/2/134265486/zosos.pdf
- https://cdn-cms.f-static.net/uploads/4413983/normal_5f9f5ad542aa3.pdf
- https://cdn-cms.f-static.net/uploads/4487662/normal_5faa1589e75fa.pdf
- https://goresizusozal.weebly.com/uploads/1/3/4/5/134524816/lazukodu.pdf
- https://zirenujunez.weebly.com/uploads/1/3/4/4/134431605/2567310.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/vukusa/2000_arctic_cat_500_4x4_repair_manual.pdf
- https://s3.amazonaws.com/jadudusujuje/lagezubupipuxuk.pdf
- https://s3.amazonaws.com/jeduzizonox/69259566855.pdf
- https://s3.amazonaws.com/xufaxoferugod/54247140912.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_off0000c882.bin` `eb2ae8e947a3c3e01698a8a8a8a825321a3db65decc5648c9cc0ccd557f31c28`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC882	5780 bytes
`font_01_sfnt_off0000dc16.bin` `97a2624390cdb2edb124483446c0efb3dcc95879d6acf917f662041787a1b234`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDC16	10960 bytes

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