Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc914df01b9b71f8…

MALICIOUS

PDF

41.3 KB Created: 2020-08-15 01:09:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 34db0384a74c449f4c8c4e98f01e6255 SHA-1: 689bec544cadf8d903300b2f21ecbd427257ea46 SHA-256: dc914df01b9b71f8b099eb61972bc1eb2aedd759ebf44f9d775ddcce2d1fb799
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body and heuristics indicate a lure related to a WhatsApp update, directing users to the malicious URL https://ttraff.ru/pify?keyword=whatsapp+android+app+new+version+free. This URL likely serves as a gateway to further malicious content or phishing pages.

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=whatsapp+android+app+new+version+free In PDF document text
    • http://files.buildingbridgeswma.com/uploads/1/3/1/0/131071056/85a76c3dc.pdfIn PDF document text
    • http://files.lightbox.at/uploads/1/3/0/7/130739542/lozadi-fakebetu-tidufabirelifa.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/1/0431/8229/3141/files/12355624.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1339/6901/files/ranurimutalevowulaxoxol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4950/8250/files/gonawijitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0204/4316/files/cartesian_spherical_and_cylindrical_coordinates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kovutuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3346/8839/files/77350411152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8166/2628/files/deginoxopiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0785/9096/files/27163789024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1814/9285/files/mulepujujowosudesuwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4245/5207/files/98209331870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8415/1974/files/coleman_evcon_furnace_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6481/8838/files/23404529527.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0021/6232/files/minimalisme_livre.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_off00006286.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6286 5260 bytes
SHA-256: 0af0c0a9bda34b5e9ffe62ba9a326b999c919e7a1a838a98919a0fa3c7c72c76
font_01_sfnt_off0000747d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x747D 10524 bytes
SHA-256: 7eb84368ec8b318092780fe72716204f2485632ee18f1074f7cac3a287b97977

Open this report in the interactive analyzer, or submit your own file for analysis.