Malicious PDF — malware analysis report

Static analysis result for SHA-256 828da071bdf22800…

MALICIOUS

PDF

37.2 KB Created: 2020-09-20 21:13:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a94b741c5ee81432ab3110394817d89f SHA-1: dcd908a59a8f9f981fcc2201631b85fc290932c9 SHA-256: 828da071bdf22800304d97b3f18942f00e520fac4cea36b62c8609c73be0e3ce
194 Risk Score

Malware Insights

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

This PDF document contains multiple embedded links, including a critical redirector link to 'ttraff.link'. The document body, though heavily obfuscated, also contains this redirector URL, suggesting a phishing or scam attempt. The presence of numerous PDF links points towards a link farm strategy to distribute malicious content.

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.link/wix?keyword=benjamin+d+foulois+middle+school In PDF document text
    • http://files.maddiecookcommunications.com/uploads/1/3/0/7/130738951/4948940.pdfIn PDF document text
    • http://fufonok.maffaainc.com/uploads/1/3/1/3/131380429/sewipoledapuf_gogimigidil_razapokunoj.pdfIn PDF document text
    • http://rotiwo.giltnercustomer.com/uploads/1/3/0/8/130874575/998272.pdfIn PDF document text
    • http://files.michellexiao.net/uploads/1/3/1/6/131607346/xugex-xotosuzunixovir-kuvareduxifo-fufetatarifu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://ebf273f1-6a43-4db3-9de8-0778f5ba458c.filesusr.com/ugd/4fea5c_5103e19702994c7daccc96963c80dd34.pdf?index=trueIn PDF document text
    • https://86e3dc50-232e-459d-bb98-cbf23d546b64.filesusr.com/ugd/9dda13_40307e36288e4cb38a46e2cc3763eb5a.pdf?index=trueIn PDF document text
    • https://6f7ab86a-78eb-4dff-8167-7f20f7dd61b2.filesusr.com/ugd/838e7e_e5fc8debc4054166af8425505bb1e661.pdf?index=trueIn PDF document text
    • https://3cab2f7b-f27c-418a-b635-4c3d0ae7123a.filesusr.com/ugd/b6aaa0_1420a3794d8040579af350c021234f80.pdf?index=trueIn PDF document text
    • https://e36f0e58-05f9-49b4-8b3b-e67a8a242df8.filesusr.com/ugd/94e5ef_8b99ca36cb504fb6b820c7237553393b.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7836/6872/files/89399730273.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5661/0969/files/balloon_shooter_game_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5213/7625/files/lake_erie_ice_cover.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4096/4759/files/ritufatumale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2685/6610/files/1920x1080_black_wallpaper_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/6835/0626/files/nupim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/4306/4474/files/show_box_apk_download_iphone.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 8

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_off0000523e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x523E 5288 bytes
SHA-256: 1cf9231b303544bb9e332b3559e92aedc733aa540e977357598dec7636955ce3
font_01_sfnt_off00006420.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6420 10432 bytes
SHA-256: fe6dbfbe3dce14063dfc27b2bc2f06300426b2342b065b3ed879828ed9f2fe19

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