Malicious PDF — malware analysis report

Static analysis result for SHA-256 e78cde72591bed7e…

MALICIOUS

PDF

40.4 KB Created: 2020-09-12 19:36:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6c573d29dfd7086c107f709030342d45 SHA-1: 3924ba4130b8ee1832e0c8e1cb8f2011301244a0 SHA-256: e78cde72591bed7e9099a8bd3cf73043ca9f59349ad215987bd6250a48a4342d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a deceptive document body that appears to be instructions for an ice cream maker, but it embeds a link to a known malicious redirector. This redirector is likely used to funnel victims to a phishing or malware distribution site. The PDF also contains a large number of embedded links, many pointing to the same domain, which is characteristic of SEO spam or link farm techniques used to obscure malicious intent.

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.me/wix?keyword=dash+my+pint+ice+cream+maker+instructions In PDF document text
    • http://files.allcoverbookdesigns.com/uploads/1/3/0/7/130739069/2841446.pdfIn PDF document text
    • http://files.houseofpainters.com/uploads/1/3/0/7/130775786/gediforekemawa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/4bb894_ef7b9bb1fbec4b92b30296543c5b5b0d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/82d61e_f16cc1197f664a8889846839e1c7aa45.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/a59130_bc4f02c8acbf4345ac9997b5ee616482.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b6edda_7a84ab74cc164fb497bad22e7e16acbf.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/a2c2bc_9d2ff38b553743a3ab6680a5471686ea.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/a2c2bc_7c4a689c48a04033b410ae7baf8fffc1.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/9421c8_9c889df5eb3f4b2884c9da45b423cfc3.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e42ee3_d79b448344674e46bffa964958f769c3.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/7f614e_d1c929b6ca4d4100b5f08fe2e0df0767.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/238140_4adea554daca4d85a55420562febecb5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/3a38e0_74decf17544849d88ecd0856256fec56.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 6

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_off0000604b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x604B 5304 bytes
SHA-256: 751873f4ec2ed84ae6551654d1450231e5853494054e169072ac033468ab8c34
font_01_sfnt_off00007238.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7238 10156 bytes
SHA-256: f45f5cecafe98a6efd374a9a7726cedaa547bc2e90f6d110b8373a13ba7ce050

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