Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e3088e67d98046…

MALICIOUS

PDF

42.5 KB Created: 2020-08-04 19:49:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 011851247ff820b59583d37d5510b042 SHA-1: 8447bd98f7b3c0ee14f441adf0574cdffa23807e SHA-256: d3e3088e67d980461d0b206708e3c084568e8a72f8d229ea89853c6fbb9700ec
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Third conditional inversion exercises pdf' and the URL itself, suggesting a lure to trick users into clicking the malicious link. The presence of a large number of external PDF links also indicates a link farm or SEO poisoning 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=third+conditional+inversion+exercises+pdf In PDF document text
    • http://files.frenchreproduction.com/uploads/1/3/0/7/130739826/7f05543.pdfIn PDF document text
    • http://files.luckypennyrealty.com/uploads/1/3/0/7/130776567/9317475.pdfIn PDF document text
    • http://files.gaindetalks.com/uploads/1/3/0/8/130874629/dojoja-kefuzegomoli-wadab.pdfIn PDF document text
    • http://files.primeclassutah.com/uploads/1/3/0/7/130775862/refuxuvulili_duvuzaret_sawavivilagoto_mafewo.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/1/0438/8634/6408/files/46770722721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0963/6512/files/fable_2_archaeologist.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3629/5836/files/vugatufatini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4488/1059/files/tepevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0890/0772/files/xunufupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3458/1911/files/telonotat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/fetugoponuvibepufitafebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1104/6558/files/lumawuzotofitefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2521/1296/files/59475381556.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/60527157158.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7356/8919/files/terosaxifatuzenubilobufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6463/1195/files/93672859118.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000681d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x681D 5320 bytes
SHA-256: c628771ab5e7ee9ca0d152147dde9a498f336a220fe12f2ff0c8bd77a030b1c1
font_01_sfnt_off00007a37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A37 10128 bytes
SHA-256: 1887f7883cb5a6a1ed2a32e6d2070265435cb4382abc273fc030b27456bf27fb

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