Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b6823a33613c3f8…

MALICIOUS

PDF

42.7 KB Created: 2020-08-06 02:05:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a0a57bc1b4de4f290d1b6b218e7d6edc SHA-1: 7c2cf68b0dd9a18f61d6853da7371e8c5a1f43da SHA-256: 7b6823a33613c3f84a5884d91b578968ec9f6566478dcf7fea9a06bd2ac071c4
194 Risk Score

Malware Insights

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

This PDF document contains a link farm designed to lure users into downloading other PDFs, ultimately redirecting to a malicious infrastructure at `https://ttraff.cc/pify?keyword=quantitative+risk+management+concepts+techniques+tools+pdf`. The ML classifier and critical heuristics strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

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=quantitative+risk+management+concepts+techniques+tools+pdf In PDF document text
    • http://files.bukuvintage.com/uploads/1/3/2/6/132682684/kizole-dovufa-sofulevugeduk.pdfIn PDF document text
    • http://diwidepog.shartwell.com/uploads/1/3/0/7/130738943/a9a98d.pdfIn PDF document text
    • http://files.chicagolandsoccer.org/uploads/1/3/0/7/130738676/pukazoxuse-jakajamejibunu.pdfIn PDF document text
    • http://files.cognissart.co.uk/uploads/1/3/1/3/131380728/7548722.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/1/0430/9961/9492/files/ssc_gk_capsule_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6076/3555/files/fefosovoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0729/6163/files/42544781522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12909571685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1307/8174/files/fopegaler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3562/2552/files/jugomamesotupasumomixadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2771/6520/files/82714300678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5054/0964/files/xawesufulepijuwatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8303/7860/files/44979743666.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0149/4179/files/docs._google_com.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4371/5229/files/wefusuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0783/5292/files/morphology_of_plants_and_fungi.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 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ad1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AD1 5760 bytes
SHA-256: de03a0a9fa1b5ca3865ca47188acc204c035f94245b15691b11aaa6a699158df
font_01_sfnt_off00006e3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E3E 9720 bytes
SHA-256: af8faf03054bf960167a69a8dc361671adaed27c78267fb3f1e36874630d911c
font_02_sfnt_off00008f6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F6E 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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