Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bfba45f2ac0f63c…

MALICIOUS

PDF

41.8 KB Created: 2020-08-22 10:33:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e75738579ebb4c094b1358ada8f43d22 SHA-1: 9503a09d775c93f1004aa6094ab86a41ca2bf3d9 SHA-256: 6bfba45f2ac0f63cb3601667f010330ae63280ced13d268c9ab396365c1396fb
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to a redirector service, indicating a link farm or phishing attempt. The document body and heuristics suggest a lure related to an 'application store', and one critical heuristic identifies the document as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent, likely to lead users to malicious 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.cc/pify?keyword=application+store+apple In PDF document text
    • http://lukalito.de-benedetti.com/uploads/1/3/1/4/131406069/senufaro.pdfIn PDF document text
    • http://vesavakev.phisigmapidavis.com/uploads/1/3/1/0/131070374/pagadu.pdfIn PDF document text
    • http://files.cameliascandles.org/uploads/1/3/0/9/130969075/nijagobagufuwa.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/1/0430/9693/2501/files/esquizofrenia_paranoide_cronica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7596/8928/files/niserenaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/geligup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2119/5688/files/how_to_remove_emojis_from_text.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8689/5512/files/kutesegivukidepuduvinas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1028728638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3117/4043/files/multiplying_fraction_models_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2802/9345/files/jovovefawusivabet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1566/5824/files/45874931024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4937/6149/files/trial_and_tribulation_ace_hood.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4786/9850/files/boboiboy_solar_wallpaper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4186/6403/files/bash_optional_arguments.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_off00006568.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6568 4916 bytes
SHA-256: ba27bf262b5f4b9f113b0e32a1c352bc101121fc4fd3a3357ed0615fc5df2f1d
font_01_sfnt_off00007625.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7625 10596 bytes
SHA-256: 9940bd16305fffc9b018429d676106fc63d351e913de4e4976612573d2365d35

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