Malicious PDF — malware analysis report

Static analysis result for SHA-256 712960781556d25f…

MALICIOUS

PDF

44.6 KB Created: 2020-08-07 06:18:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4a06018f074738b3fb7cbf5b1bc09715 SHA-1: 6fe7d523191ba95377f27595725955b187bd9d73 SHA-256: 712960781556d25fc64abd4f8f06580776b3744a821d856a646180f16044a9dd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically identified as a redirector for SEO link farming. The document body, though heavily obfuscated, contains text suggesting a lure for a 'free sample of company profile. pdf'. The ML classifier strongly indicates maliciousness, and the heuristics confirm the presence of malicious redirector links.

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=free+sample+of+company+profile.+pdf In PDF document text
    • http://files.cameronhighlandshomestay.com/uploads/1/3/1/3/131380741/7867893.pdfIn PDF document text
    • http://files.miriamsagastiartist.com/uploads/1/3/0/8/130814529/9027a.pdfIn PDF document text
    • http://files.redtreefarmstead.com/uploads/1/3/0/7/130739376/jesogaberale-larego-janoda.pdfIn PDF document text
    • http://vanobom.deaconvernon.com/uploads/1/3/0/8/130874359/pofiwegigewufib.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/1/0431/8317/7887/files/42703754479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5296/6812/files/kiwenewejinafutekoxesoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5855/1189/files/kingdoms_of_amalur_reckoning_dlc_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0110/9920/files/faxiwun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2103/2859/files/kuzudopibutemuzuro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0335/5034/files/87686273694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/73121007565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5586/6265/files/ulcer_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9606/4671/files/94790404499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9765/1352/files/8652037731.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_off00006fae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FAE 5388 bytes
SHA-256: 0272d2c34109b4f3918b382646f9532a7a0207fa0914abecc9055d0a35103ee8
font_01_sfnt_off000081fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81FC 10292 bytes
SHA-256: 2964ff8d998e6d3666bacfddac6c9d3edbc789c5a05a6b2b2c9701014c777c5b

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