Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a0b89dc5927b0a2…

MALICIOUS

PDF

58.7 KB Created: 2020-08-23 16:47:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ad5c843877456092ac457a2568990a1 SHA-1: 9419e07ffc62f81362f7e8bc21342cb9ef4cfac3 SHA-256: 8a0b89dc5927b0a2169123d26a1711b4046f8fa18a94894c8af09eca3549e3ce
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating it is a malicious redirector and link farm, designed to lead users to potentially harmful websites. The embedded URL 'https://ttraff.com/pify?keyword=astral+chain+game+informer' is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting a phishing or scam attempt.

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=astral+chain+game+informer In PDF document text
    • http://files.asbestosmasters.com/uploads/1/3/0/7/130775953/40b16be58.pdfIn PDF document text
    • http://files.mcgrewhouse.org/uploads/1/3/0/8/130874482/vulojibawapulul.pdfIn PDF document text
    • http://muwimuras.mscunningham.com/uploads/1/3/1/4/131437044/gokomonunoda_leximoxukufevu.pdfIn PDF document text
    • http://xomubixev.aspire2bfree.com/uploads/1/3/0/8/130814328/f8fec1ab743b.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/1/0432/9468/7400/files/working_of_2_stroke_si_engine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1783/7467/files/atkins_fisicoquimica_descargar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9748/9572/files/63072330372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7916/3285/files/blessings_laura_story_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2183/6193/files/91681821693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2589/9421/files/anais_nin_little_birds.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6231/3631/files/rosojudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6359/7466/files/the_complete_acid_reflux_diet_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/womevenoromelaliba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2631/6455/files/online_dictionary.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009885.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9885 4188 bytes
SHA-256: 97e021f0533b9e6537f70cf9e4e9e3937c324af6b6c4276a1bedb7cdb34bb45d
font_01_sfnt_off0000a750.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA750 5284 bytes
SHA-256: be91b973b45bb01acc8f23903bdfddd8f1fc6724e35ff3cc0d7ae7885201ba6b
font_02_sfnt_off0000b915.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB915 10520 bytes
SHA-256: a007d12afc7ea10cd6219e9c6d2abd3c5b0f20e51a4b56539fb52a1eded8502c

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