Malicious PDF — malware analysis report

Static analysis result for SHA-256 f98a8b2748100436…

MALICIOUS

PDF

39.8 KB Created: 2020-08-21 11:43:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: da99504dd74be2fe024be411db410fe7 SHA-1: 9050e6ef4f54421d7cc4d0b74572288fe33863b2 SHA-256: f98a8b2748100436e3970dfc2ab723400b524d9b568827a3159f3b0396a77ec0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the link at https://ttraff.com/pify?keyword=atkinson+achievement+motivation+theory+pdf is associated with known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic fired, suggesting the document is part of a link farm designed to manipulate search engine results, likely as a lure for malicious activity.

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=atkinson+achievement+motivation+theory+pdf In PDF document text
    • http://lebuluvov.vanblues.com/uploads/1/3/1/0/131069935/kosivo_raxumobob_kibiwuj_refedazuti.pdfIn PDF document text
    • http://files.tutormenick.com/uploads/1/3/1/3/131378899/mulume.pdfIn PDF document text
    • http://files.canenationband.com/uploads/1/3/0/8/130874042/fesebavap.pdfIn PDF document text
    • http://bltlly.com/158n9dIn 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/1/0434/0767/1453/files/math_101_calculus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1972/2152/files/runescape_magic_training.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9726/0192/files/dulinevelozotutazupepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9449/9743/files/17463135706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0631/0046/files/game_balance_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4016/9366/files/polinud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4896/0151/files/4899192848.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5507/0880/files/43592222417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6884/2393/files/41224298356.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: canenationband.com 7 samples

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_off00005d4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D4A 5580 bytes
SHA-256: f15aa786ae3ada0813b8042656e79b4d2aa5f9fd6d77880d09a7531484d20bfb
font_01_sfnt_off0000701f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x701F 10076 bytes
SHA-256: 3d8c58014761a027d0b92ac6eebd3d59a64bdc1d93f96d0ce3bcf63446f4d7ef

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