Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3178cb4d67bb42d…

MALICIOUS

PDF

40.1 KB Created: 2020-08-22 23:43:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 50b299077618b4b4e4bd94fe556d3aca SHA-1: 8c7274875a81f64c8d9ae0e2416f31daa963b40f SHA-256: f3178cb4d67bb42d25596a6b0b479d68d39177b357ace32a2e7c5d2ab8e8cc92
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which points to 'https://ttraff.cc/pify?keyword=template+for+a+formal+business+letter'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same URL, suggesting a lure to a malicious site disguised as a business letter template.

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.cc/pify?keyword=template+for+a+formal+business+letter In PDF document text
    • http://boxaxugot.vitamedhealthcare.com/uploads/1/3/1/3/131379510/42844313fd1.pdfIn PDF document text
    • http://files.bonnieleeanderson.com/uploads/1/3/1/4/131408502/paxitesewafu.pdfIn PDF document text
    • http://togefe.robertmcaffee.com/uploads/1/3/0/9/130969265/sududefukiwawo.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/1/0434/5770/8185/files/rapijag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2734/9159/files/pneumatic_air_motor_ppt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7492/0347/files/tumaxivevotasubopifesenib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0952/3355/files/fowupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3869/5846/files/larufufapebeno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4030/1478/files/factoring_quadratics_algebra_1_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4665/8463/files/vezupewesusolatoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9762/9596/files/metitikatowunaxugezulab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/wujeguwemosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7845/1351/files/habanera_music_sheet_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7716/3416/files/41925574669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9354/1532/files/sedarutewimo.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 3

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_off0000605c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x605C 5136 bytes
SHA-256: d5bab218f258b2418bd3f56dbd0256229e9f896187ca1aa2d4a0dbaf6e0d043d
font_01_sfnt_off000071b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71B9 10116 bytes
SHA-256: 48d033e92defdfabbca74c08ba4ce6433af000934b4463407513c19ebd1db32a

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