Malicious PDF — malware analysis report

Static analysis result for SHA-256 78ca6c0d0b516282…

MALICIOUS

PDF

42.8 KB Created: 2020-08-05 04:33:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3a439595a831c9f4d24d4333ad270fd9 SHA-1: c7f478043e79522bc832277c3608141a2d7d7e23 SHA-256: 78ca6c0d0b5162827db6cd40651d1ba6eeb9714de38ed1960b22dec6c4d1a059
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with one prominent link redirecting to a known malicious infrastructure at `https://ttraff.com/pify?keyword=save+webpage+as+pdf+firefox+extension`. This indicates a phishing or scam attempt, likely to trick users into downloading further malware or visiting malicious sites. The ML classifier strongly supports the malicious verdict.

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=save+webpage+as+pdf+firefox+extension In PDF document text
    • http://files.yogaconnectionukiah.com/uploads/1/3/2/8/132814086/nunozalegoxoniwomo.pdfIn PDF document text
    • http://files.pollygreathouse.com/uploads/1/3/0/8/130814065/lararovemolekewuno.pdfIn PDF document text
    • http://files.shcsublimation.com/uploads/1/3/1/4/131437822/576f6f77377.pdfIn PDF document text
    • http://files.margaretsheldon.com/uploads/1/3/0/7/130739731/nitomedugugujiket.pdfIn PDF document text
    • http://files.precisionrifle.shop/uploads/1/3/1/3/131383319/996c38e08b48f.pdfIn PDF document text
    • https://getfireshot.com/FireShIn 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/1/0433/0687/7080/files/rofimoluxita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6321/2192/files/28291186761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2602/2557/files/zarogemopav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5185/9616/files/dilafafuxulaxazuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9291/1007/files/craftsman_riding_lawn_mower_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1390/6327/files/6256702495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6300/0734/files/dexizuxototafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8305/5782/files/82127999548.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5680/7586/files/82139953050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6450/0122/files/dodanibadaxu.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_off0000669d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x669D 5640 bytes
SHA-256: becf21cc663b216033db7fb631da2ee5ea2db3e09eaeb018d49450f7eb9ecaa0
font_01_sfnt_off000079f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79F3 10604 bytes
SHA-256: 67eed71582cf0dcccb3c9170bfd60d43c6b5849e0a3d84e48a6d34d8d6dd71cd

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