Malicious PDF — malware analysis report

Static analysis result for SHA-256 4277c6ad6fb987f0…

MALICIOUS

PDF

41.8 KB Created: 2020-08-05 10:46:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f05a4f2ba2a729e4403a15e4732a172d SHA-1: de4f4758bb12e3595318e0e6bbd02f690b7028c6 SHA-256: 4277c6ad6fb987f056bf72564de011350899e0e47ff4a6cb5f8d7fd0531041a4
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically 'ttraff.cc'. The document body, though heavily obfuscated, contains text suggesting it is presented as sheet music, which is a common lure. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm or distribution mechanism. The primary malicious URL is https://ttraff.cc/pify?keyword=adele+skyfall+sheet+music+pdf, which likely serves as the initial point 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=adele+skyfall+sheet+music+pdf In PDF document text
    • http://files.dermatagespa.com/uploads/1/3/0/8/130813639/1083bb4e1.pdfIn PDF document text
    • http://files.stelizabethrap.com/uploads/1/3/1/3/131381006/guporipud-rijenes-pobawukikemefen-furuwoxugevuwo.pdfIn PDF document text
    • http://files.ppddragonboat.org/uploads/1/3/0/7/130775934/towekirolok.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/1/0433/7431/3621/files/centrales_eolicas_en_el_peru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/welilavuruwad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2585/8714/files/49893951296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8117/9037/files/nitowenaxanatusulanag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6905/4886/files/30574277320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1478/2104/files/13824751007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46676539889.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3985/7563/files/114122030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1935/4791/files/3ds_max_architecture_tutorials_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9281/1669/files/nuresagunudufakatoxuguj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2252/3288/files/sosivojefin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7246/3772/files/62755827880.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_off00005590.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5590 5452 bytes
SHA-256: d87506f462d193f1df84c5c1b563dbe65fc8bc4784ca4b65fe94747e99ccddf1
font_01_sfnt_off0000680d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x680D 15360 bytes
SHA-256: c3b9b8f47c898a9faee62245c6a16542008a31d5b8060d7871206d94def7e941

Open this report in the interactive analyzer, or submit your own file for analysis.