Malicious PDF — malware analysis report

Static analysis result for SHA-256 0aeb89a3e3ac099e…

MALICIOUS

PDF

50.4 KB Created: 2020-09-17 11:47:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f61d2f29aeef46ab75e42ee123d9ca4 SHA-1: 066b0a88121ba257386450c06543c337ccdaa5d6 SHA-256: 0aeb89a3e3ac099e652f0dc6d70e3546e5f2c26c0aede15208bfe08a4665b55d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous embedded links, with one identified as a malicious redirector. The heuristic firings indicate this is part of an SEO link farm strategy, likely designed to redirect users to malicious content or phishing sites. The ML classifier strongly supports the malicious nature of this PDF.

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://ttraff.club/wix?keyword=la+sangre+de+cristo+tiene+poder+biblia In PDF document text
    • http://selopo.fairfaxpinesenglishlabradors.com/uploads/1/3/1/3/131380600/9254152.pdfIn PDF document text
    • http://mifoso.carperfamilyband.com/uploads/1/3/2/3/132302944/5880372.pdfIn PDF document text
    • http://tazitin.monashsoccerclub.com/uploads/1/3/1/4/131483128/kapilobexoxizi.pdfIn PDF document text
    • http://wabeger.coveyoupottery.com/uploads/1/3/1/4/131407995/rimikifo-vunanorapusum-mutewirop-loditadu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://e7298390-5aeb-4398-a243-1cd86a840d9f.filesusr.com/ugd/9117e0_e71f598f72b64f0ab0eef67b6d3f7772.pdf?index=trueIn PDF document text
    • https://1deec956-a464-4219-9d9c-a9ac42cb0d31.filesusr.com/ugd/79e5df_a33d72da006b41d48878a1fd2a882e91.pdf?index=trueIn PDF document text
    • https://b6ff8a0d-200a-4a18-9424-ab205356fc09.filesusr.com/ugd/b5aed9_d0bb87ffe11e40dcbc40b52805a0ec6a.pdf?index=trueIn PDF document text
    • https://c9aa6577-d5b4-4b04-a527-af0f62993664.filesusr.com/ugd/3d0627_517a462d6def4f6ca4bd0aea2b60dc61.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6113/9861/files/18848942729.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6659/7288/files/zakakebuzadupatipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5221/2128/files/85171413146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2619/4333/files/kofez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4351/2732/files/atonal_music_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/0899/1905/files/31551535086.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8892/8150/files/word_processing_activities_for_middle_school.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8625/9100/files/45874865347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5791/3754/files/chicken_flute_gungeon.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
🗂 Part of campaign: fairfaxpinesenglishlabradors.com 3 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000083a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83A7 5320 bytes
SHA-256: 3ae471a61792b660d5f2e38e6fb1d53b771dc33e19d9a482fe9ab76612d918f6
font_01_sfnt_off000095ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95CA 11420 bytes
SHA-256: 3a0abfbcc56aba77e72658f065bfdc45f0105218345e2dff88cd0ff215c2e545