Malicious PDF — malware analysis report

Static analysis result for SHA-256 bac04ec755b65736…

MALICIOUS

PDF

59.3 KB Created: 2020-08-15 01:57:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c4f80cee415d9b18e90c30729c279b41 SHA-1: 152739720d4e1383ce6910a78080e495c5b70b13 SHA-256: bac04ec755b6573694b57268e30491d8d3a2d329d72f4cdc0193a6195a68a206
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The ML classifier strongly indicated maliciousness. The document body itself contains numerous embedded URLs, many pointing to Shopify domains, but one critical URL leads to a redirector. This suggests a phishing or scam attempt to redirect the user to malicious content.

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=d3+infernal+machine+guide In PDF document text
    • http://ribafota.samvlcaks.com/uploads/1/3/0/7/130775403/2884128.pdfIn PDF document text
    • http://files.jkxtremehardscaping.com/uploads/1/3/1/6/131637357/xijuwebatazopep.pdfIn PDF document text
    • http://mikado.ascendia-sports.com/uploads/1/3/2/6/132696194/mabat.pdfIn PDF document text
    • http://files.douglasvilleboxingclub.com/uploads/1/3/1/3/131384024/judis.pdfIn PDF document text
    • http://files.coachellavalleyinjurylaw.com/uploads/1/3/1/1/131164383/2eadd8d.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/1/0431/2337/6277/files/nimunuvedurikufonubag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/45927795399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0454/9531/files/bupivofapide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0406/0071/files/bingo_card_generator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8286/5058/files/49410612491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8749/5321/files/32181819495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8853/files/kolonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4038/1855/files/58433793694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9857/0909/files/el_oro_blaise_cendrars.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 3

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_off00009dd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DD8 5112 bytes
SHA-256: e518ad74abd24539118286a199d461f13478f8fe52494741183cc4b72e2ac557
font_01_sfnt_off0000aefb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEFB 10308 bytes
SHA-256: a47812664a38ac2714d73338e09705e14f53daca77be4ed05e4577e42c99a507
font_02_sfnt_off0000d22a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD22A 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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