Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a3ae56561ede541…

MALICIOUS

PDF

41.2 KB Created: 2020-08-14 00:27:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 23b9ecbb8a01e3930c89cb753c8adefe SHA-1: 2119b83787b9439704823a718d504a5bdcde85f0 SHA-256: 4a3ae56561ede541882a629dc5d6ccc684862a8ca29a73615013961b80287bb9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to external PDF files hosted on various domains. One of these links, 'https://ttraff.cc/pify?keyword=wallpaper+for+whatsapp+profile', is identified as a malicious redirector. The presence of a link farm and a malicious redirector suggests an attempt to lure users to malicious content, likely for further exploitation or credential harvesting.

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=wallpaper+for+whatsapp+profile In PDF document text
    • http://zikefogi.dartrapper.com/uploads/1/3/1/3/131381428/gakabolarafu.pdfIn PDF document text
    • http://bubijiwe.softcast-technology.com/uploads/1/3/2/3/132303064/menona-vewofevotu.pdfIn PDF document text
    • http://files.benefitsselection.com/uploads/1/3/1/3/131398367/nabate.pdfIn PDF document text
    • http://files.jackandjamesapiaries.com/uploads/1/3/2/6/132680962/b0bdc6cc62490c.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/1/0428/9619/5737/files/53068998280.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8644/4699/files/kuxefonedovikigafibar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8044/0213/files/interview_skills_activity_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4037/2896/files/army_risk_assessment_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/65056592103.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9480/2581/files/7455773069.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0979/1384/files/bible_quiz_questions_and_answers_from_luke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1020/1499/files/9950535956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4892/6364/files/python_replace_multiple.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4014/4534/files/ace_group_fitness_instructor_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9262/2998/files/xarekidovev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2050/9596/files/47566212232.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 7

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_off0000644f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x644F 5096 bytes
SHA-256: 7d9dd6daf15391bc55e7d26f052ab385118745086c991fa2d77a5a1be774c041
font_01_sfnt_off000075ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75BA 10076 bytes
SHA-256: 8f0404d7688c6be370770d038ff97bcb96f638fc60f4b454ab8ae3633b9a159e

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