Malicious PDF — malware analysis report

Static analysis result for SHA-256 c63d4c7174751c75…

MALICIOUS

PDF

69.0 KB Created: 2020-08-19 18:40:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2d50cede52e5f28e51599a1d392767e5 SHA-1: c7fc4c7931ae6811c7bbb7de3e5dbcea0e1e5223 SHA-256: c63d4c7174751c7585f432d1dd92d4e5e07a595353bf737513683e97719e40a9
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many pointing to Shopify domains, but one critical link to 'ttraff.cc' is flagged as a malicious redirector. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The presence of a malicious redirector indicates an attempt to lead the user to a harmful destination, likely for malware distribution or phishing. No scripts were extracted, and the document structure itself is the vector.

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=amdal+pembangunan+rumah+sakit+pdf In PDF document text
    • http://files.vucatools.net/uploads/1/3/2/6/132682335/863f36f.pdfIn PDF document text
    • http://ridulofe.sandiegocountyrecordersociety.org/uploads/1/3/2/6/132695535/4605667.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/1/0428/9649/0655/files/alfabeto_japones_katakana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7278/2489/files/ringtone_iphone_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5656/1318/files/17638411391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6090/4604/files/ayreon_the_source_booklet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7031/4903/files/koruximub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2687/3509/files/pharmaceutical_buffers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4354/3447/files/aiag_spc_manual_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2655/3752/files/dutazexifowojomabuzabax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5789/5829/files/4182591741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6926/8373/files/21389706108.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c52b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC52B 5648 bytes
SHA-256: 9dbc64393b64979d015a6405afbc7b79e3fc24222026bf784bc82be95cc71efe
font_01_sfnt_off0000d82a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD82A 15408 bytes
SHA-256: f29367fe148e0fbde34b9d40b6172afb085831013b8da1ee1d8434d92dc82d63

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