Malicious PDF — malware analysis report

Static analysis result for SHA-256 8036353a614af207…

MALICIOUS

PDF

46.0 KB Created: 2020-08-26 08:33:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1f8c8bcb2744ee20d55965cbd5920e52 SHA-1: 61a98008d8e625a96552a51f1fcac60e575475ce SHA-256: 8036353a614af2076d70450d3f5ca8980eadb2c845078887b0404f66ece1fbc7
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.me) that is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting a lure for a 'free math workbook pdf'. The presence of embedded URLs and the PDF_MALICIOUS_REDIRECTOR_LINK heuristic strongly indicate a phishing or scam attempt designed to redirect users to malicious sites. No scripts were extracted, but the overall structure and link farm suggest a phishing campaign.

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.me/pify?keyword=free+math+workbook+pdf In PDF document text
    • http://vutug.eyebelieveeyecan.com/uploads/1/3/1/4/131437254/xusobowim.pdfIn PDF document text
    • http://sevaxixu.coachesathletic.com/uploads/1/3/2/3/132303382/potitifid_dikixemili.pdfIn PDF document text
    • http://files.rosmanith-mclean.com/uploads/1/3/0/8/130874090/d6d587753de6fc.pdfIn PDF document text
    • http://files.fimc.info/uploads/1/3/1/6/131606526/wetejavukosuna.pdfIn PDF document text
    • http://files.skzlandscaping.com/uploads/1/3/2/7/132740525/kipafalige.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/1/0428/9835/8432/files/81603963226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6202/5624/files/rupizikenezusenekos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7840/2723/files/francis_bacon_advancement_of_learning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/7138/1160/files/taxurifito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/3960/1318/files/seguwapeboxipomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/76486605307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0583/6438/files/kavegiroguguxizubuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1097/4108/files/mowebesajenowolutideririv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1792/0934/files/sizutolubabu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9534/1723/files/xidakijekorasoxusaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/0238/0708/files/laryngeal_cancer_guidelines_nccn.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/8907/8946/files/niwibopinedoxorikavalodoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2603/9463/files/bivaxasototijokoxam.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_off00006737.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6737 4956 bytes
SHA-256: 7d7081e1e81239852619cf5d432ccec496438642d88b1cb41cceb3bb3a3e2fe3
font_01_sfnt_off00007819.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7819 10704 bytes
SHA-256: 5ed62b5802fccd516d6cdcecdcbd0408d16f37d3ec7759387b60a45b9f7c5784
font_02_sfnt_off00009cb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CB1 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230