Malicious PDF — malware analysis report

Static analysis result for SHA-256 090a75227bbefc09…

MALICIOUS

PDF

41.5 KB Created: 2020-08-10 01:26:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 65655cf4aee932125619f6d1c6d589cb SHA-1: 700ad6b0ac4699ed833fff015a35cbcdc11260ee SHA-256: 090a75227bbefc099fb4a1ca868f90fbef493ce8df9cc15e8f7c922cf07758ad
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, with a high ML classifier score. The document body, though partially garbled, contains a URL that is also flagged as a malicious redirector. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for phishing or malware distribution.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=ph%25E1%25BA%25A7n+m%25E1%25BB%2581m+c%25E1%25BA%25AFt+n%25E1%25BB%2591i+file+pdf+tr%25E1%25BB%25B1c+tuy%25E1%25BA%25BFn In PDF document text
    • http://xorider.colleenitani.com/uploads/1/3/1/4/131452836/509cce.pdfIn PDF document text
    • http://files.wild-woodbury.org/uploads/1/3/1/4/131453396/19338a0.pdfIn PDF document text
    • http://files.acadianaplumbersassociation.com/uploads/1/3/2/7/132710601/patemoxew-zewiwepogasose-nokaz-pawivemobim.pdfIn PDF document text
    • http://files.oceanpinesmotel.com/uploads/1/3/1/6/131606453/xegijeduvimepip-zumusirokud-jetofofija-zamamefoguni.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/1/0440/7004/3813/files/88515108286.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5107/4214/files/79108997784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7100/3037/files/81443394535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3170/7294/files/sejarah_batik_malaysia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6237/0210/files/biocentrismo_ambiental.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/furupokexopaxabisovijuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5082/6905/files/85619936121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0414/8382/files/11749846363.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0413/3525/files/77968172836.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6333/6350/files/56438436161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/6150/4152/files/sujikenewosedinifez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5721/5648/files/81374939392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7679/6057/files/7936267367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/8036/4711/files/danoxatositevosidezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6664/9750/files/basic_question_of_f_b_service.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB8 6308 bytes
SHA-256: 8ec741612d944b6c09151491166409c65eca7275c60d2ecf890f92304c9255bf
font_01_sfnt_off00007371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7371 10384 bytes
SHA-256: 420c6ff186123fa9106d16c70884eb337ab158bb9aabef5e2927fab98d276b69