Malicious PDF — malware analysis report

Static analysis result for SHA-256 141bd0071a114b87…

MALICIOUS

PDF

40.2 KB Created: 2020-08-26 02:19:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3a852a26668b96d65dd60d5dba2561ef SHA-1: 9895d01fadf43db4c5d998d0587858aef7f2587a SHA-256: 141bd0071a114b8708bd1f9115360ad9b6bdf27cc779436e6c0b34ca1524b55a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised with keywords related to 'Necrologie republicain lorrain meurthe et moselle'. This suggests a phishing or scam attempt. The presence of a large number of external PDF links, many pointing to Shopify, indicates a link farm designed to improve search engine ranking for 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.ru/pify?keyword=necrologie+republicain+lorrain+meurthe+et+moselle In PDF document text
    • http://files.susannahnix.com/uploads/1/3/1/4/131452872/5951469.pdfIn PDF document text
    • http://jifom.sertlehimleme.com/uploads/1/3/1/3/131383775/sigurubimosi_dazulirafije_miwade.pdfIn PDF document text
    • http://files.grizzinator.com/uploads/1/3/1/8/131856771/87f964.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/1/0428/0814/8127/files/88245300740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2478/5313/files/27829703754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/liwisubusamepumiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41448402009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6617/1285/files/sarkari_result_vdo_admit_card_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/7064/3365/files/15343801281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2619/4342/files/retapid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4031/7350/files/27163956074.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1002/2814/files/budinakejidorowusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7661/6341/files/fozonuzavurasonuwiloru.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 5

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_off00005d44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D44 5456 bytes
SHA-256: c6285ae0264436af872e18251c407f37f23fe875b2422ff60ed0dee58c5428aa
font_01_sfnt_off00006fa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA4 11468 bytes
SHA-256: a9d0511c4d4cf5c3cb2ff8d185dc11df4c319b095a2acca21089b015dee4ff6d

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