Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2621eb2b21b963a…

MALICIOUS

PDF

37.0 KB Created: 2020-08-21 16:56:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4d3d563f32329a9e9e95b13b54517446 SHA-1: e99d613530b4cbe9d53c1364942bf254e0d497a4 SHA-256: c2621eb2b21b963af39dad939b202b1d55b5f2ce12c918b6f2fea3607f8c6678
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=motorola+apx+4000+manual'. This indicates an attempt to lure the user to a malicious site. The document body also contains this URL, reinforcing the lure. The presence of numerous other PDF links, some pointing to Shopify, suggests a link farm or SEO poisoning tactic to increase visibility.

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=motorola+apx+4000+manual In PDF document text
    • http://files.radoslawrogoza.com/uploads/1/3/1/3/131384300/nolirujowexeboj_wetased_nedenegojizi.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/1/0428/9835/8432/files/22271122494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7945/1289/files/velegapinamamulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1164/files/envision_math_grade_4_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2492/4319/files/568289750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6962/7799/files/rigapigabokafadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bovegutug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3350/9535/files/pebuvejize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0427/1524/files/97573483970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6758/0322/files/anaerobic_wastewater_treatment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6336/9125/files/54762805329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6412/1757/files/standard_tv_sizes.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_off000048b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48B7 4804 bytes
SHA-256: 18935072cf4e5c2a40ca1f7c286aee1afff0bf018c5bda6efc023618cf800980
font_01_sfnt_off000058f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58F1 9508 bytes
SHA-256: 5bec01eb16d2b9e0d3526da1cd256c3e1a5578248d5ede95daf71faba57bc352
font_02_sfnt_off00007959.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7959 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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