Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e2e8ae3817e7ebf…

MALICIOUS

PDF

37.1 KB Created: 2020-08-08 22:51:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 26fa6c66155c547400c0cc90586ffde1 SHA-1: 0223d0c5a2e41bffa828533672ad11491acc67ad SHA-256: 2e2e8ae3817e7ebf7804fdbe046cd9e233434f57ee9a8ff935fe23e189dd96ff
234 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to redirectors and potentially malicious infrastructure, as indicated by the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' heuristics. The document body, though heavily obfuscated, contains text suggesting a lure related to a 'word bingo template pdf' and includes the malicious redirector URL. The ML classifier also strongly flagged this PDF as malicious.

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.cc/pify?keyword=word+bingo+template+pdf In PDF document text
    • http://files.mauirealestateschool.com/uploads/1/3/1/1/131164556/e0681e38649cca.pdfIn PDF document text
    • http://nakawul.cardifflymphoedemaandtherapies.com/uploads/1/3/0/8/130814297/dipovitotujufap-xefopokadakew-likupememu.pdfIn PDF document text
    • http://files.forsythtavern.com/uploads/1/3/0/9/130969689/bofegota_vowubagid.pdfIn PDF document text
    • http://files.tmwsports.co.uk/uploads/1/3/0/7/130775391/70cdf9a46db0a5.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/1/0433/3407/4523/files/lowugimerija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0049/5260/files/7841889042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8289/8840/files/29862781798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7923/6760/files/pogazololon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44484222312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4016/9366/files/wodapubavofakololutof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/64862354006.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8254/6341/files/where_does_twitch_install_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5115/5618/files/43825785256.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6700/6364/files/rakumik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/jovefewogexob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6113/2968/files/lojolov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3173/3159/files/33898663021.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_off00004a37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A37 5124 bytes
SHA-256: 67baf1c13c1d6769f45f5db080b1ee070aa689a2e552662fef4ad346daae48dd
font_01_sfnt_off00005b93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B93 8700 bytes
SHA-256: 6780a309d67d80ce29ba82eab40e76aa5961c7c975708606c37c34bb036f491d
font_02_sfnt_off0000794c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x794C 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c