Malicious PDF — malware analysis report

Static analysis result for SHA-256 965a16fec997dbc2…

MALICIOUS

PDF

47.0 KB Created: 2020-08-25 14:05:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b1965e7bf5afe8c377e16cf090df629f SHA-1: 2a2bd3b12a3d48b929e505160a9db57c036db041 SHA-256: 965a16fec997dbc2f79bacd2e39adbcc7c7fd2f8ff51bc5158bda345fb139883
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm designed to lure users to malicious redirectors, specifically `https://ttraff.com/pify?keyword=apple+earnings+reports+2019`. The ML classifier strongly indicated maliciousness, and the presence of numerous external links points to a SEO-based lure. The document body, though heavily obfuscated, contains references to financial reports, reinforcing the lure.

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.com/pify?keyword=apple+earnings+reports+2019 In PDF document text
    • http://files.groupj.net/uploads/1/3/1/6/131606094/3ed6f5dfc.pdfIn PDF document text
    • http://mevorapug.thesteamrocket.com/uploads/1/3/1/3/131379015/c209345faa3.pdfIn PDF document text
    • http://files.ferretsandfriends.org/uploads/1/3/0/7/130774990/zovinem_befew_vizakimiri.pdfIn PDF document text
    • http://puguka.evaairways.org/uploads/1/3/0/7/130776213/fidegikepi-watijaburevazi.pdfIn PDF document text
    • http://files.stillskiapparel.com/uploads/1/3/0/8/130814830/xiselanovuxori-petavedaxa-rujiduwuf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3887/4532/files/past_present_and_future_tense_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3636/9318/files/language_arts_practice_worksheets_8th_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0928/6050/files/wivogirawujisajuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9521/9623/files/xagek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5114/7679/files/dipofekerikorawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6657/2452/files/hungry_jacks_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3519/7602/files/53502431355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6990/6844/files/31228114151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2969/9482/files/adele_rolling_in_the_deep_music_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2422/0321/files/nogunup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1664/9890/files/australopithecus_afarensis.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

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000077cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77CC 5460 bytes
SHA-256: 2a3351ebc7a05b3f2463d5f6f0f6376450267e0ae333d3e1293927abbde9c60d
font_01_sfnt_off00008a6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A6D 10764 bytes
SHA-256: 8ad4c65c0739b42b5c2931f9031a450a0df6201639b8135a0e6aba9afe105631

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