Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9bf3c2073793a1c…

MALICIOUS

PDF

38.2 KB Created: 2020-08-25 02:22:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cfc86656b003b2baf3e984b5962b832e SHA-1: 18b33c67f3e885d23d272cd288b503292b568f66 SHA-256: d9bf3c2073793a1c86b3d3918c53ef701ad7acf38a93209fc8eb11ff37dfa982
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed for SEO manipulation, all pointing towards a phishing or malware distribution scheme. The presence of a 'download button' lure further supports this, directing users to the malicious URL https://ttraff.ru/pify?keyword=zombie+catchers+apk+para+hilesi. While no scripts were extracted, the PDF structure itself facilitates the malicious redirection.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=zombie+catchers+apk+para+hilesi In PDF document text
    • http://kamox.redflagpoetry.com/uploads/1/3/0/7/130738638/0b10009c24ac.pdfIn PDF document text
    • http://files.livingmorefully.com/uploads/1/3/2/7/132740552/b2e09199100fd.pdfIn PDF document text
    • http://woruzek.bymarywong.com/uploads/1/3/1/0/131070872/vavovefojar-zirexabelajose.pdfIn PDF document text
    • http://xubapiki.youtrition.co.uk/uploads/1/3/0/7/130776007/36caa85c.pdfIn PDF document text
    • http://files.lakewass.com/uploads/1/3/1/3/131384721/c9d256364.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/1/0438/7491/0376/files/55437066598.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9436/7644/files/asean_integration_philippines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3943/9510/files/wopurenetese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3077/3913/files/79830293789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1137/9097/files/diabetic_amyotrophy_treatment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/womosoravitixugefiwil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1298/7802/files/79186575772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9635/8565/files/fagavawisili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8352/1445/files/40355769122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7520/7322/files/rikadazukezudamozigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8596/9046/files/new_mercedes_a_class_brochure_2020.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: adventurescomingtolifeinwords.com 3 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000057f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57F8 5336 bytes
SHA-256: 3cec2da36dcaedf6e6ba8e8c6dc5bbc233ad05f37d24c58555cb69a77eaa3f86
font_01_sfnt_off000069f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69F6 9936 bytes
SHA-256: 2f20833f1b2f36321acf09c7c726b3e442fafa39ebefc3f9143af82e8e59401e