Malicious PDF — malware analysis report

Static analysis result for SHA-256 90942c12da214757…

MALICIOUS

PDF

46.1 KB Created: 2020-08-06 22:00:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6b11c7dac8367e93e4d051664e868e8d SHA-1: 2a282163a7bd839e43eabf0a77bac32cb166fc3c SHA-256: 90942c12da2147576342dbe84fcefd507cefd5e9bf133454473e34917de96414
214 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure, and another heuristic indicates a callback phishing or tech-support scam context. The primary malicious URL is ttraff.com, which likely serves as a gateway to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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=betraying+big+brother+pdf In PDF document text
    • http://files.appleridgecooperativehomes.com/uploads/1/3/0/7/130775848/tobuzozu-vagefag.pdfIn PDF document text
    • http://files.acresofopportunityranch.com/uploads/1/3/0/7/130776739/3157422.pdfIn PDF document text
    • http://files.krisspanglermft.com/uploads/1/3/0/7/130738951/genifineva.pdfIn PDF document text
    • http://files.glensfallsleah.org/uploads/1/3/0/8/130873971/potoguxozuxi.pdfIn PDF document text
    • http://jutuzonuf.languagesnsw-greek.com/uploads/1/3/1/3/131383791/xediv.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/1/0435/3343/5032/files/69073238988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6056/0025/files/47520446827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2554/5890/files/how_to_flip_a_video.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0296/5665/files/all_yoga_asana_poses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9461/3924/files/94919731412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5912/5160/files/95797193991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7720/6178/files/nobalowitim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8249/7700/files/ravobenudowatoxawej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/91868346369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7316/6757/files/89797360660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6956/3290/files/55706781710.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2249/1553/files/76769718255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2607/8101/files/borudegivaxitedovewozib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4390/3905/files/terapaxu.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C00 3080 bytes
SHA-256: 0fcef192c95d6fd4d5333de3e5f0a04c8525a73f6e29f4febd37223f58d6e746
font_01_sfnt_off00007709.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7709 5384 bytes
SHA-256: d7a5591c515cb05dada25264130867c9c85b8cbfa5784f6341f1210dc825c052
font_02_sfnt_off0000895a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x895A 9904 bytes
SHA-256: 20821d2e41921d2509db303d4a058403236efc73d7ea599fa6077989272a249c