PDF malware analysis — malicious · 3be0b761c3d04d39

MALICIOUS

PDF

90.2 KB Created: 2021-05-11 09:44:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13

MD5: 48b3df2727e501dad442759a0eba4d66 SHA-1: cb26a47dcfd5a4ce1b98baa32446a6bbc4855fd8 SHA-256: 3be0b761c3d04d397b7f01aa4424abbd9ff4e02010eaad952e298037a4c40a29

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains heuristics indicating it is a phishing document and hosts a link farm. The embedded URL points to a domain associated with phishing campaigns. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to redirect users to a compromised site for further exploitation.

Machine Learning

Nyx PDF Classifier malicious score 0.9990

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://maypoin.ru/strik?utm_term=champion+9000+watt+generator+recall PDF link annotation
- https://static.s123-cdn-static.com/uploads/4413236/normal_6008d667accf5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4461229/normal_604d251d6bffd.pdfIn PDF document text
- https://cdn.sqhk.co/benanejufa/ieShcii/32079452066.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4483103/normal_605dad5a207db.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421476/normal_6056e7ca93b7f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393779/normal_603549908684e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4404500/normal_5fc79cc92139f.pdfIn PDF document text
- https://cdn.sqhk.co/kolusugego/qghicic/soveraxurumigebaze.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4374853/normal_5fc8c0c5bede3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382789/normal_603a68a753f45.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4490539/normal_602269558f638.pdfIn PDF document text
- https://cdn.sqhk.co/tajelezoja/9ujjgii/smart_balance_ingredients_safe.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426814/normal_605a2cf186116.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4459060/normal_5ff60eb2b5d4c.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4378607/normal_6002d448f2af5.pdfIn PDF document text
- https://cdn.sqhk.co/fowipovoji/hcJehfG/videos_for_likee.pdfIn PDF document text
- https://cdn.sqhk.co/govibabika/jeSghyy/physiology_practical_ak_jain.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://95c758d6-fd33-43c6-b5d0-f1f55e07e946.filesusr.com/ugd/cb0188_d26881e5ee314cd0b1a3cbe3977ee890.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/4d614307-2805-4cc3-b82f-1b76a0e9226a/how_much_sodium_is_in_a_taco_bell_chicken_power_bowl.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d10dff1c-3654-45e0-9f70-e923ccda7c73/vapegatadifez.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/eb3a65c1-6278-4691-9f0c-841f522fba88/dubirupulixiwexuwakuxij.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/84aa7646-5692-44e7-b681-d8247b23fff4/sadevusafuv.pdfIn PDF document text
- https://8546b567-499d-44cb-812b-f4cb210fa0cc.filesusr.com/ugd/1f0b74_b2fc47b537444441b2f5073fcf1576bc.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00010d00.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10D00	5464 bytes
SHA-256: `9eed0b68824dcb9861f6346be024b1347b8dbceb9829267dfc18b02a060f282c`
`font_01_sfnt_off00011f81.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11F81	11344 bytes
SHA-256: `b784d0ce2056d6b173bf2815992be0fb72295fe7e95cf18f18f8c8b60aed893a`
`font_02_sfnt_off0001463f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1463F	16060 bytes
SHA-256: `2173a1880e9f774f759393e7d0d28dda91d04d8a3eae6bea41b822770b343b90`

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