Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d64e2fbfb0d0e68…

MALICIOUS

PDF

44.5 KB Created: 2020-08-21 21:48:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 95cef71aa81561d608ceccd415d2958f SHA-1: b27733241cd2726ad58a20895e269224b8e49e3f SHA-256: 9d64e2fbfb0d0e68e7964797c2d07603a594020995f8854219dedb3f388f4814
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to external content, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text referencing 'Clash of clans apk day1 2018' and a URL that appears to be part of this lure. The presence of numerous links to external PDFs, many hosted on Shopify, suggests an attempt to obscure the ultimate destination and potentially distribute malware.

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=clash+of+clans+apk+day%25C4%25B1+2018 In PDF document text
    • http://rejif.thewonderousfunderstorm.com/uploads/1/3/0/8/130874153/3382553.pdfIn PDF document text
    • http://files.spinecarechiropractic.net/uploads/1/3/1/3/131384018/30437.pdfIn PDF document text
    • http://files.fluid-venting-system.org/uploads/1/3/1/4/131406344/87f6c0dbb2b1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8362/0757/files/nuzovekurapej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0506/6907/files/a_level_physics_data_sheet_ocr.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7463/4403/files/sedizuxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5405/6095/files/yale_forklift_manual_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5404/7138/files/35531731324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2156/5078/files/looney_tunes_basket_ball.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0131/4454/files/agriculture_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7876/9045/files/mevagoponugifotamigunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6509/5845/files/rewafinuxuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6661/4175/files/acknowledgement_letter_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5627/5362/files/86299669239.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_off00005c1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C1B 5432 bytes
SHA-256: d754b0ce6d1aa7b00005b9078fae1adc03182cf055de79d9e6460ff931a67e89
font_01_sfnt_off00006e92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E92 12208 bytes
SHA-256: 3ab20bf8b67d618656a96590f68a41850b36a39b655d0895f628c03c07bb849c
font_02_sfnt_off000094f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94F6 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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