Malicious PDF — malware analysis report

Static analysis result for SHA-256 889f8d63731792fb…

MALICIOUS

PDF

44.1 KB Created: 2020-08-19 08:41:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0e594498e3658973dddcdece8e9893d8 SHA-1: 31e856d4ce67beeee5c1fd540f563b49fa30c6f1 SHA-256: 889f8d63731792fb9f2f86e50a784d63d680e5180f3400848b18caf6caf7bcb4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, pointing to a phishing or malware distribution attempt. The primary malicious URL identified is https://ttraff.com/pify?keyword=karuppusamy+kuththagaithaarar+tamil+songs, which is used in conjunction with numerous other links hosted on Shopify and other domains. The ML classifier also strongly indicated maliciousness.

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=karuppusamy+kuththagaithaarar+tamil+songs In PDF document text
    • http://files.advocates12508.com/uploads/1/3/2/8/132814611/powimixapelo.pdfIn PDF document text
    • http://zexebi.theridingtherapycenter.org/uploads/1/3/1/6/131606731/bipijemerujoluxovad.pdfIn PDF document text
    • http://lifipi.sertoma-gunshow.com/uploads/1/3/1/3/131379992/fepalezobazo_poronew_nipupowo_ridoma.pdfIn PDF document text
    • http://bubijiwe.softcast-technology.com/uploads/1/3/2/3/132303064/menona-vewofevotu.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/1/0428/6893/2767/files/state_biot_savart_law.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1431/5422/files/kexidogumotifakosuxem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/9621/4423/files/vyapam_calendar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5597/2501/files/autism_spectrum_rating_scales_asrs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/godikuka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0002/1667/files/play_based_learning_activities.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4234/0007/files/36185594121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3292/0739/files/pmbok_5th_edition_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/4155504299.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_off0000668f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x668F 5368 bytes
SHA-256: e66aeed82b54f9a94376327342ff4a890658b319d95c858a9b4310939eae92d4
font_01_sfnt_off000078bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78BB 13568 bytes
SHA-256: 5a836651868472bc7ef606b50961a24ff4cacfbbe4a6e62bc129c65458e5135b

Open this report in the interactive analyzer, or submit your own file for analysis.