PDF malware analysis — malicious · 65cc19580d795efa

MALICIOUS

PDF

74.3 KB Created: 2021-02-20 23:47:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05

MD5: bee0fd321a5f9682a7d0533bab77490a SHA-1: 4de6f14d114374edb7aad689665b4cfd4c561f3c SHA-256: 65cc19580d795efa79613f2cfe2d3c91dcdf9b96e9f53ab7d7414e88e9a709bf

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF contains a significant number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic, suggesting a malicious intent to manipulate search engine results or redirect users to potentially harmful sites. The ClamAV detection and ML classifier strongly indicate maliciousness, classifying it as a phishing trojan. While no scripts were directly extracted, the PDF structure and embedded URLs point towards a phishing or content distribution attack.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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.
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://bologen.ru/wix?keyword=pokemon+alpha+sapphire+guide+serebii PDF link annotation
- https://zupuluduwiwafop.weebly.com/uploads/1/3/2/6/132681460/wodefanebax-zelofij-rewojigad.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4370080/normal_600279862204e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403264/normal_6014bba50fdfd.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4449205/normal_5fffef6dd187d.pdfIn PDF document text
- https://gapepaweduli.weebly.com/uploads/1/3/5/4/135400658/rotemipesegekegufe.pdfIn PDF document text
- https://juwulonureli.weebly.com/uploads/1/3/2/8/132815178/7674743.pdfIn PDF document text
- https://kigimijufofudiv.weebly.com/uploads/1/3/5/9/135977026/f5f60176a37f37d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387716/normal_5ff16d29087bc.pdfIn PDF document text
- https://rudiduwusoxu.weebly.com/uploads/1/3/4/4/134445317/xasuxipomidiz-letos.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418013/normal_6011a3c247cfc.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4411686/normal_5ff9ce2baf889.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4458161/normal_60143cbb24c3f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4449990/normal_60142606d7701.pdfIn PDF document text
- https://topizamo.weebly.com/uploads/1/3/4/4/134435864/89807d.pdfIn PDF document text
- https://japilulijerimu.weebly.com/uploads/1/3/0/7/130738614/pufowupiguselaviz.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/tugabijenovili/is_ferrocene_or_fluorenone_more_polar.pdfIn PDF document text
- https://s3.amazonaws.com/kisagoz/31385526301.pdfIn PDF document text
- https://s3.amazonaws.com/sezewu/71199976797.pdfIn PDF document text
- https://s3.amazonaws.com/jafujasiwetid/zasimovirudanusozite.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000da1c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDA1C	5380 bytes
SHA-256: `f9b07c121c0b53ece91399eb23d7639759b38eb6fa36db7902e23603dcec23fa`
`font_01_sfnt_off0000ec1a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEC1A	9932 bytes
SHA-256: `6b05c4b4fcca425897ce74933b9d1b65c722adf8d14e36547b5918527a0829aa`
`font_02_sfnt_off00010e18.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10E18	4324 bytes
SHA-256: `1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361`

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