PDF malware analysis — malicious · f62e6554fd85bc2e

MALICIOUS

PDF

80.5 KB Created: 2021-04-07 18:57:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25

MD5: 504529c84957d743b26ce29f490c29ae SHA-1: 3f3c59f8e5349dbec15aaefa0d7db7cce84db51e SHA-256: f62e6554fd85bc2e6839de9ea91e5c302e5d51c2ace5bd84607fad96dccc495b

186 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable hosting, suggesting it's part of a link farm designed to drive traffic or host malicious content. The embedded URLs and the overall structure point towards a phishing or scam-related attack pattern.

Machine Learning

Nyx PDF Classifier malicious score 0.9990

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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://leonvi.ru/123?utm_term=easy+information+report+topics PDF link annotation
- http://world-wildshop.com/72247063661b40nj.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384645/normal_604d6f1db4ec0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420766/normal_600a522ee8358.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407988/normal_601e0be14945a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366011/normal_6012e071b3fed.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4472793/normal_5fd09932e9337.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446643/normal_5ff8db95db462.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368999/normal_602add065b31b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378853/normal_600e799c20288.pdfIn PDF document text
- http://heliusdesign.ru/2005_nissan_pathfinder_off_road_bumperbffkc.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4488581/normal_5fffe2114f585.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4498868/normal_5ff0a2c7d2b8a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4478137/normal_603d09a64a709.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4369633/normal_5fddfe35b7109.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366004/normal_601d7ee771f3f.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446917/normal_5fc680d3a557d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4476943/normal_5fe1383cc4e59.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/filidabut/42406579905.pdfIn PDF document text
- https://s3.amazonaws.com/posaxugidut/benchmark_software_for_pc_free.pdfIn PDF document text
- https://s3.amazonaws.com/wemupajese/dipejikozifo.pdfIn PDF document text
- https://5862e4ea-63a6-4c92-af93-e06d02d1a664.filesusr.com/ugd/eaa371_5cdf160b7fca41a4bcc48d84f71dea6b.pdf?index=trueIn PDF document text
- https://c31d65df-273c-4bcc-acfb-7b03b0724b99.filesusr.com/ugd/e7e4a0_5016bfafe60a4a22bb2bdd464fc798c7.pdf?index=trueIn PDF document text
- https://f38be386-5799-403b-9303-fb121113655a.filesusr.com/ugd/6f1aa7_febeaa97eaa94ab1a9a9a9bc3caff806.pdf?index=trueIn PDF document text
- https://aeedc83c-a41d-4179-9d48-e770e4c4cd47.filesusr.com/ugd/e010a7_e055e5d758b6437f8f0266f3d8087dbc.pdf?index=trueIn 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_off0000ed92.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xED92	4976 bytes
SHA-256: `f51cabe9c91df20a8b05c23c093d09063b5198ade4e3d4aba6cfc7957e57aa08`
`font_01_sfnt_off0000fe6a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFE6A	11336 bytes
SHA-256: `08cdb60ef6a518f62f5e244361d1637a2f8bb822d4a7896bbf8f396b98563ccf`
`font_02_sfnt_off00012505.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12505	4324 bytes
SHA-256: `ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3`

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