Malicious PDF — malware analysis report

Static analysis result for SHA-256 b448ee83c08a2ade…

MALICIOUS

PDF

35.8 KB Created: 2020-08-25 12:46:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7b510f9ccc4b6cf7344a85e842931b5e SHA-1: 567d4b42b0665259f732e2e874346ef452adc6fd SHA-256: b448ee83c08a2ade79d79c3163daa28063e79ff5d721ed4763583fa96a3b9386
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, includes text related to 'Logo quiz android crowd level 3 answers' and the malicious redirector URL. This suggests a social engineering attempt to direct users to malicious content, likely for further exploitation or phishing. The presence of numerous links, many pointing to Shopify domains, indicates a link farm strategy to obscure the malicious destination.

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=logo+quiz+android+crowd+level+3+answers In PDF document text
    • http://papeli.quailhollowfarmpygoragoats.com/uploads/1/3/0/7/130775195/8979128.pdfIn PDF document text
    • http://kapij.cardiganbayregatta.co.uk/uploads/1/3/1/4/131438096/cdc3b3557212d66.pdfIn PDF document text
    • http://files.sweetssogeek.com/uploads/1/3/1/4/131437683/tijogapika.pdfIn PDF document text
    • http://wewuxevij.mastech-engineering.com/uploads/1/3/0/7/130739163/sorasixukipudazam.pdfIn PDF document text
    • http://files.doudorchard.com/uploads/1/3/2/6/132695694/bofibedekufixat.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/1/0432/7538/7043/files/ziwejogonazanadaxovetawup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4935/1328/files/cellulose_structure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/1042/4733/files/pamonamabizafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/1840/7335/files/subject_verb_agreement_worksheet_for_class_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7522/3200/files/vatekukarejilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/4596/1118/files/guronanodasogap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0870/4164/files/cuddle_buddy_application_form_blank.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8984/5671/files/novaform_mattress_reviews.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6808/7701/files/84284068366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1018/5637/files/69139688792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3818/7413/files/gta_v_cheat_codes_ps4.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_off00004ac2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AC2 5540 bytes
SHA-256: a7447792b4f012b745b3894d82d87a39184c39894ccae6e5aa3dd0cd2d6c0fbd
font_01_sfnt_off00005dc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DC5 10620 bytes
SHA-256: 9e40548c57f01a9aee0fed0ca227c7b321b1e0d9cf5553b4ea453f73afacc04e

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