PDF malware analysis — malicious · cbf6fe530e0a12a4

MALICIOUS

PDF

64.5 KB Created: 2021-02-23 14:04:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25

MD5: 947813c5471d0d568413dcfea7308cc4 SHA-1: 8abdeff57c155dca732a33f2e11594b78c442782 SHA-256: cbf6fe530e0a12a42dad0b222660186fae7089cf065f77db5e5c406d8aae5677

126 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 5

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 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://baarspo.ru/wix?keyword=marvel+strike+force+cheats+no+verification PDF link annotation
- https://static.s123-cdn-static.com/uploads/4476421/normal_60041e16c064a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369762/normal_6019bcdc2fcc5.pdfIn PDF document text
- http://rating-bookmaker.ru/2006_international_dt466_torque_specsylgg2.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4422620/normal_5fdedce04cda2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369518/normal_60299098b7e92.pdfIn PDF document text
- https://wegizazuxiri.weebly.com/uploads/1/3/0/8/130814830/fcb597bb6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4379846/normal_5fec304e6a20d.pdfIn PDF document text
- http://cashbackk.site/accident_reports_15_freeway_todayohvtq.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://dobategasugano.epizy.com/kaththi_video_song_720p.pdfIn PDF document text
- http://kogivekadavan.rf.gd/14863114002.pdfIn PDF document text
- http://notewewagegev.rf.gd/73166719207.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c049.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC049	5096 bytes
SHA-256: `8f903aa5ed662156314d75850c2dcc37f01473ab12308d4e1efd389748a293e8`
`font_01_sfnt_off0000d1af.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD1AF	10288 bytes
SHA-256: `da0921300710810b731318f4534f9bdebe91c8900364b28716c95af3e005a512`

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