PDF malware analysis — malicious · 9364acec680b1201

MALICIOUS

PDF

40.1 KB Created: 2020-10-17 08:44:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25

MD5: d69f9e200c9c31179c532658479ee3b7 SHA-1: c9b27640635f786b1accdb5dd01e187ea66df080 SHA-256: 9364acec680b1201c10c9a482b3dcae9651a930561261188e06c7e87e2a5eda5

194 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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.
Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK

PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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://ggtraff.ru/123?keyword=anglais+des+affaires+assimil+pdf In PDF document text
- https://cdn-cms.f-static.net/uploads/4366976/normal_5f87d8992e04f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366388/normal_5f87b75755acf.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366032/normal_5f8703922dfc8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366010/normal_5f873dfc890a3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366367/normal_5f88068f20349.pdfIn PDF document text
- https://zafozudakajadev.weebly.com/uploads/1/3/0/8/130814863/xujewonagamaxu.pdfIn PDF document text
- https://lixaworone.weebly.com/uploads/1/3/1/8/131871871/riripitel.pdfIn PDF document text
- https://rajomiluti.weebly.com/uploads/1/3/2/6/132682989/lebafu_pesosav_divapakininez.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://cdn.shopify.com/s/files/1/0431/7102/0957/files/medoc_mountain_state_park_map.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0484/7773/3019/files/zavejuvepekokizufukuxefag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0469/0123/1776/files/ruvav.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cb2a445e-8506-4e5d-adf8-ae71e580627c/42210262623.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dcda09cb-5bae-4f85-8ca7-4a723f302a7b/69948520708.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0b6f3baf-f730-4172-9007-dd9b382569ce/raxejomonufavixasofaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0483/7916/6873/files/80274187144.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8812/4830/files/traffic_rider_apk_download_latest_version.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0503/1411/7293/files/coffee_grinder_manual_uk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/7292/8409/files/hampton_deluxe_cruiser_bike.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0482/3744/5274/files/premier_pioneer_car_stereo_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9271/2349/files/vocabulary_review_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9151/5797/files/les_miserables_prologue_25th_anniversary.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6383/6834/files/sebepo.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_off000050c5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x50C5	4948 bytes
SHA-256: `45715f4d1ba415626702de84eb90f59ec23d197f66a19f83654fbb5dbafab05e`
`font_01_sfnt_off0000616c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x616C	10444 bytes
SHA-256: `48faa508191fb3b3a6f89488868225021c6d8d959652399dd10c3606dd289798`
`font_02_sfnt_off0000835e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x835E	4324 bytes
SHA-256: `cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34`

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