Malicious PDF — malware analysis report

Static analysis result for SHA-256 141bcc635e84f3cb…

MALICIOUS

PDF

46.2 KB Created: 2020-08-11 16:22:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 93ec1bd0cfa6c1754f8395bcf4a8e8e4 SHA-1: 75c46051c6ce4899aa552c8eff1cb04d0bd68a05 SHA-256: 141bcc635e84f3cb5362d51c2841f159b77dc78f7ad6585c38a3204e4586a1a0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links designed to appear as legitimate resources, but they ultimately redirect to a malicious domain, ttraff.com. The document body, though heavily obfuscated, contains the URL that is also flagged by heuristics as a malicious redirector. This suggests a phishing or SEO spam campaign aiming to drive traffic to malicious infrastructure.

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=method+of+calculating+national+income+pdf In PDF document text
    • http://files.beyondbonesapparel.com/uploads/1/3/1/4/131408017/xasusorajakanuja.pdfIn PDF document text
    • http://files.monmouthmethodist.org/uploads/1/3/1/4/131437680/wemuperawewaso-gitidavejep.pdfIn PDF document text
    • http://files.in-fashionacc.net/uploads/1/3/1/0/131070689/85e4d75b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0729/5140/files/62597114372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0845/7885/files/guxeliwoletuxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0822/0574/files/78154764729.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/0092/7132/files/rofawinujarixusajul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9850/5369/files/fovabezusox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kovogosiwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8049/6792/files/kekozekejibagejipok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5320/1046/files/20279079675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3181/2504/files/nolodogabejozavabav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/1156414881.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5929/0022/files/danufopug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0736/7592/files/jowavajefigifevuvun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2452/3170/files/can_ps3_play_ps2_games.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9803/8679/files/15292618237.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_off00006819.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6819 5184 bytes
SHA-256: 8e4e3b855c77145531d1be493b289fa985b0429d45ccc62a5fbdc26c8ff3d09e
font_01_sfnt_off0000799a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x799A 10524 bytes
SHA-256: 6668d3cfcbc287620ba14c2d4ed9dcbcb2207f7e4fc0d62ad1dce1a76e60392b
font_02_sfnt_off00009d8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D8B 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2