Malicious PDF — malware analysis report

Static analysis result for SHA-256 780e044f83ad9c30…

MALICIOUS

PDF

40.9 KB Created: 2020-07-31 18:37:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6f271d20a7e68b8a5a403f637b9794d0 SHA-1: 9924a0dc6bb818f4fcb13eb7405628361f29bf56 SHA-256: 780e044f83ad9c30b449cb43562e126885367a69f602c2c00de8338155a5fa5a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, appears to contain the same lure text as the malicious URL, suggesting a phishing or scam attempt. The ML classifier strongly indicates maliciousness, and the presence of a link farm further supports a malicious intent to drive traffic to potentially harmful sites.

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=what+are+examples+of+sole+proprietorship In PDF document text
    • http://files.friendsofthetalkeetnalibrary.org/uploads/1/3/1/6/131637402/fofimititewe.pdfIn PDF document text
    • http://files.texasheartlandins.com/uploads/1/3/0/9/130969984/9688947.pdfIn PDF document text
    • http://files.mingahouse.org/uploads/1/3/0/8/130873822/bcf20877c03.pdfIn PDF document text
    • http://files.sersproducts.com/uploads/1/3/2/7/132712129/pebor.pdfIn PDF document text
    • http://files.orchardmemorials.co.uk/uploads/1/3/1/8/131871786/2991666.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/1/0431/3533/6605/files/8938504798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8578/3447/files/mupotavovibegefin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2258/0886/files/10604941704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8151/5673/files/nikefijinajinosikazizuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5481/6667/files/fulopudokupibe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3925/1870/files/31026030581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4891/9459/files/19983594738.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4416/7064/files/23083528236.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8226/1415/files/funomoziz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6011/7160/files/21418381634.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_off00006172.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6172 5220 bytes
SHA-256: 29d017fd0dd410e4dbcb73a76de5a97190c4c87711c4e99cd25d8bf6336474a0
font_01_sfnt_off0000731b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x731B 10472 bytes
SHA-256: 80f8550d1bdffb8ff25dc4cea5e9593a7f42b5326d0d5b46835b42a3fb0a3f3d

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