Malicious PDF — malware analysis report

Static analysis result for SHA-256 de8584bb7a4da80d…

MALICIOUS

PDF

42.2 KB Created: 2020-08-17 17:25:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a8d2a2b69ee533f618154ba0338ccc15 SHA-1: 8988e97235405e298a8b0ba772256a8e140c936a SHA-256: de8584bb7a4da80dcf532f3429d38a0622e0a4355b03f532b1a027cd67b92d12
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious infrastructure, indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text that appears to be a lure for 'live wallpaper android dragon ball z', and the embedded URL points to this same lure. The PDF_SEO_LINK_FARM heuristic also indicates a large number of embedded links, suggesting a link farm or distribution mechanism.

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.ru/pify?keyword=live+wallpaper+android+dragon+ball+z In PDF document text
    • http://files.sandrapaolalopez.com/uploads/1/3/0/8/130813988/2511042.pdfIn PDF document text
    • http://files.sofiaelghazzali.com/uploads/1/3/0/7/130738534/dulefanamamurep.pdfIn PDF document text
    • http://files.uhighmusic.com/uploads/1/3/1/0/131069763/4173802.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/1/0434/9090/2166/files/42369013959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8123/6634/files/zudimebugasabotex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7909/0855/files/simple_company_profile_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6582/6719/files/1972625755.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6455/5675/files/luxoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6964/3675/files/till_it_happens_to_you_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1330/6530/files/backcountry_magazine_gear_guide_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2093/3528/files/number_theory_book_by_burton.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8688/9625/files/64949986339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/lozireje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1466/7936/files/93876435410.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 8

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_off00005c21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C21 3056 bytes
SHA-256: ac0559e2d9a6811c2f8d7394341a1119a6717ca8eda73ddee11cca83e953f693
font_01_sfnt_off00006707.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6707 5232 bytes
SHA-256: dde45a9da841f494c4e8a1ff9e0b3b930d694621a88bf89865b61a3af6ab302b
font_02_sfnt_off00007901.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7901 9920 bytes
SHA-256: f2568f8a6aa532ded099ef570dcf963091147c4020d8a1f169efb65decca26e3

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