Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cb672e77ce7be40…

MALICIOUS

PDF

36.3 KB Created: 2020-08-25 17:17:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8b642d8025fc940a0dbaa7e5b3c356cf SHA-1: 8e62e6d25cb484f0906aa79a7d6c1f373879a52e SHA-256: 3cb672e77ce7be408bc6b7b644d1546255c9223d847ff16da4ae2e4eb64607f0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=akanamali+remix+music'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on shopify.com. The document body, though heavily obfuscated, contains the same malicious URL and a benign-looking PDF link, suggesting a lure to disguise the malicious redirect.

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=akanamali+remix+music In PDF document text
    • http://zupakob.crowdedcloset.org/uploads/1/3/1/4/131406068/320805.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/1/0432/1820/6887/files/din_en_iso_898_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8810/2051/files/afterbirth_plus_items.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5477/5970/files/28112361990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/8127/4278/files/witch_yoo_hee.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4136/6951/files/69063939637.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12091312038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5841/3216/files/abduction_movie_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6857/0265/files/castrol_edge_5w30_c3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5462/7993/files/reading_comprehension_strategies_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/79123306636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8096/4509/files/jazusutaburejupenopideki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7275/6648/files/site_reliability_engineering_how_google_runs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/92532979764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3048/4904/files/25776230139.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 1

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_off00004cd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CD9 5068 bytes
SHA-256: d555e9e1a6efd083810bca9b1c306025b450ea144e9916b38b2db2c1ef266614
font_01_sfnt_off00005df5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF5 12176 bytes
SHA-256: 2a069227b3439c85a25b75a6c8b91986df20294298f2954f865e5118c9fd9254

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