Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a1e09ebe4d6e194…

MALICIOUS

PDF

72.2 KB Created: 2021-02-24 21:22:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 43a1e1de0338bbf1e1ddbed8ea019a80 SHA-1: c84b06633891a0442cf7d5fdfe5c5dadbd981b86 SHA-256: 9a1e09ebe4d6e194bfde9ce00ee14bba5289d21c92c7a2ebf14a9f82a3de6f3d
196 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a phishing document and includes external links. The ML classifier and ClamAV detection strongly suggest malicious intent. The document body, though heavily obfuscated, contains references to 'Dewalt dw402 parts breakdown' and 'wkhtmltopdf', suggesting a lure to a website for potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9618

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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://baarspo.ru/award?keyword=dewalt+dw402+parts+breakdown PDF link annotation
    • https://rizogedimawe.weebly.com/uploads/1/3/0/7/130739598/2108492.pdfIn PDF document text
    • https://cdn.sqhk.co/dijabidasu/imphagd/bugs_bunny_diciendo_no_gif.pdfIn PDF document text
    • https://wizugelavuri.weebly.com/uploads/1/3/5/3/135325487/51687daab1cbe.pdfIn PDF document text
    • https://cdn.sqhk.co/vodadavubex/9sSlRvh/download_knight_td_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/jekunesoru/vjfQRvv/56178469201.pdfIn PDF document text
    • https://cdn.sqhk.co/noxibogalu/Lhghdgd/203a_of_the_advisers_act.pdfIn PDF document text
    • https://bigubuwona.weebly.com/uploads/1/3/4/3/134309174/kofov-kelasuxu.pdfIn PDF document text
    • https://cdn.sqhk.co/togareguko/BSThaja/forgotten_land_dfo.pdfIn PDF document text
    • https://cdn.sqhk.co/kesokirow/ggibwsh/best_deals_on_amazon_right_now.pdfIn PDF document text
    • https://cdn.sqhk.co/jukunobegabe/ifgjahe/live_voice_changer_for_discord_mac.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/telasebisu/bought_by_many_insurance_form.pdfIn PDF document text
    • https://s3.amazonaws.com/gaxuremewuger/xedudedoximevefazimolewi.pdfIn PDF document text
    • https://s3.amazonaws.com/gogunabones/google_docs_tri_fold_brochure_template.pdfIn PDF document text
    • https://s3.amazonaws.com/baxegezivumi/writing_task_1_sample_answer_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/kafises/change_action_bar_text_color_android_studio.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2F3 5612 bytes
SHA-256: 013adb902c7cec7d6c0a50a435bd7d4f427ce7c201a6eca4833236b8f30cdea6
font_01_sfnt_off0000f636.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF636 13676 bytes
SHA-256: 508998902b816247c22a8b43a4896c78a8f2e391900c808f46eef57c59722072

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