Malicious PDF — malware analysis report

Static analysis result for SHA-256 843fa391b097a2c3…

MALICIOUS

PDF

32.6 KB Created: 2020-08-25 01:04:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0d96889787c65fd56689b2aac3a512c9 SHA-1: 79c6e3e8c52ea01ce713f5800892cc2e6a7bced1 SHA-256: 843fa391b097a2c3b3f89165a04e410a1e099b204e66d34b845b0e081e060761
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to a malicious domain, masquerading as a free song download. This is supported by heuristics indicating a malicious redirector and a link farm designed for SEO manipulation. The primary malicious URL identified is https://ttraff.com/pify?keyword=aararum+manasil+ninnorikkalum+song+free, which is likely used to deliver a secondary payload or phish for credentials.

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=aararum+manasil+ninnorikkalum+song+free In PDF document text
    • http://files.paramountrec.com/uploads/1/3/0/7/130775827/wanuvawofi.pdfIn PDF document text
    • http://penogipi.thepurestbeauty.com/uploads/1/3/1/4/131453284/1812180.pdfIn PDF document text
    • http://files.prestonsburgchurch.org/uploads/1/3/0/7/130775561/2e643acf6410.pdfIn PDF document text
    • http://vofetid.dollardsoccer.ca/uploads/1/3/2/7/132740353/3978241.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/1/0433/9191/0038/files/fatupajoduwonuluvuraniw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/5170/0644/files/alternative_investment_funds_sebi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5096/6950/files/3356328010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1423/3000/files/52778558162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/email_domains_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8491/3563/files/giwezipotago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/78523746225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3279/5541/files/gamagodolududodube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6274/6517/files/51386884395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6716/2276/files/anabolic_steroid_list.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_off000044bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44BB 5140 bytes
SHA-256: bba1fa654a41b2725ef22ec69d9c3bc11ed8eaa5148b01a78d2ee8e487ee7182
font_01_sfnt_off00005624.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5624 9260 bytes
SHA-256: 85f73b801a690de9e2d56b2aa5282adcb44ca1412ce63407b1de3e5b5a7475f9

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