Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc1021f3a91646a8…

MALICIOUS

PDF

37.7 KB Created: 2020-08-19 12:42:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 699a97c29455f19a9e3d52cf80a40dbc SHA-1: 454ed744929efba4d805630e4730f8f5a2a362eb SHA-256: dc1021f3a91646a81392366a7e94d513d70be8b7ca91cf59b3da4adc1141d4c2
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document contains multiple links to a redirector infrastructure, specifically `https://ttraff.cc/pify?keyword=nfl+injury+report+saints`, which is flagged as malicious. The document body and embedded links suggest a phishing or scam attempt, likely aiming to redirect users to malicious sites under the guise of providing an NFL injury report. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm designed to improve SEO for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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.cc/pify?keyword=nfl+injury+report+saints In PDF document text
    • http://kolifi.unnatinarang.com/uploads/1/3/2/6/132695615/8423704.pdfIn PDF document text
    • http://files.amandabeekhuizen.com/uploads/1/3/1/4/131412858/f1437f969.pdfIn PDF document text
    • http://files.katiemichellefriedman.com/uploads/1/3/1/4/131407882/liwefowemawujisimop.pdfIn PDF document text
    • http://files.talltechteacher.com/uploads/1/3/2/7/132712623/1837967f4c.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/1/0439/5496/2590/files/29945785260.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7511/6961/files/ashcroft_care_home_formby.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5395/4725/files/49779750647.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9301/7247/files/1502217715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5471/9395/files/anatomy_and_physiology_study_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0437/7763/files/rodug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8317/3798/files/b._sc_maths_model_question_paper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3655/6962/files/25853416076.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3890/7288/files/33824904174.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_off0000565f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x565F 5044 bytes
SHA-256: 183ddd850872d872bdcfeef678e39c9e5661865db12c6cf406af8f0783816d69
font_01_sfnt_off000067a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67A1 10140 bytes
SHA-256: e036f678b6359dd8377a9d0c5462662087edcfa8d5711dc525b36fafa479fe77

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