Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b5def85f13b738e…

MALICIOUS

PDF

43.8 KB Created: 2020-08-22 11:04:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 82457f99b5c1dad5a3eb575f00e761ce SHA-1: 253bace449321080edafd4f57b80a104dc934304 SHA-256: 6b5def85f13b738e3c4090c93a2714fa91dd874ce138a174c3952bee903bb533
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a primary link identified as a malicious redirector. This redirector is likely used to funnel victims to a phishing or malware distribution site. The document body text and embedded links suggest a lure related to 'personal development plan template leadership', aiming to trick users into downloading further content. No scripts were extracted, but the presence of malicious redirectors and a large number of SEO-optimized PDF links indicates a campaign to drive traffic to malicious infrastructure.

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.ru/pify?keyword=personal+development+plan+template+leadership In PDF document text
    • http://files.krisjost.com/uploads/1/3/1/3/131398145/sezim-nekobi-xibolifejusejod.pdfIn PDF document text
    • http://files.anikadeshpande.com/uploads/1/3/1/4/131409309/296e5.pdfIn PDF document text
    • http://files.stchadspre-school.com/uploads/1/3/1/8/131871449/zoneguzigozivukafo.pdfIn PDF document text
    • http://files.myartisticdentist.com/uploads/1/3/1/4/131453214/ribane_vasilabofeb_dotowifixusiw_zejezurugo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0423/9783/files/collections_in_java_8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4273/4237/files/vw_beetle_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5149/1233/files/farinelli_il_castrato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9160/7190/files/sons_and_daughters_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7460/0598/files/autocad_map_2010_crack_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2434/1400/files/navonazegaxepejurivid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1274/6390/files/arithmetical_reasoning_tricks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7542/7740/files/school_dance_full_movie_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8058/1274/files/82234290790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5180/9957/files/bapojililexuxa.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006149.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6149 5048 bytes
SHA-256: d0161d9c853eeba92f3a8ee66ddffcbf6e98e3d39d086ec2a7e162e881ae8ee5
font_01_sfnt_off0000723b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x723B 9936 bytes
SHA-256: 005f603907d3d55cae794688bb3f48d981c47c44b5dd9badbcbff61e50a7111e
font_02_sfnt_off00009404.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9404 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c