Malicious PDF — malware analysis report

Static analysis result for SHA-256 184ae203cd1e847e…

MALICIOUS

PDF

44.7 KB Created: 2020-08-14 08:06:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52123a42992a16a5a73c456910d17eb9 SHA-1: 2cb6806c4a9e975e37a769e1a4d050e1d5df1ccf SHA-256: 184ae203cd1e847e0efeeaff099e695c879567544df80850d7a8c8201c7398ff
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links to external resources, including a redirector at 'https://ttraff.cc/pify?keyword=ahsa+participating+funds+information+listing', indicating a phishing or malware distribution attempt. The heuristic 'PDF_SEO_LINK_FARM' suggests a large number of links were generated, likely to improve search engine ranking for malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=ahsa+participating+funds+information+listing In PDF document text
    • http://files.yellowgroup2.com/uploads/1/3/2/7/132740905/ab11cca.pdfIn PDF document text
    • http://files.finessegarments.com/uploads/1/3/1/1/131164520/xariwubix.pdfIn PDF document text
    • http://files.bodkacoffee.com/uploads/1/3/2/8/132815181/7347096.pdfIn PDF document text
    • http://files.bananatreeroots.com/uploads/1/3/0/8/130873781/gefapubele.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/1/0440/1607/4902/files/zoputibetodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1656/0550/files/kurezudixunosutikovelow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0587/8170/files/rulugorupemiritetago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5690/5885/files/pugedipubogakagal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4759/8742/files/fatinagezativajoxab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0716/4064/files/gananifogaxifojolimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6628/9302/files/headway_academic_skills_reading_writing_and_study_skills.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8477/9430/files/zinosaxefizuwuzami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/atto_di_dolore_preghiera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80884551140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2133/4688/files/xudofelofawog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7643/5621/files/kuzovegafikisul.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_off0000708c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x708C 5556 bytes
SHA-256: c2642d9fea113027f69890bb080a6ad011be2f9b7714b3db877191d88e290def
font_01_sfnt_off0000833c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x833C 9932 bytes
SHA-256: 28422706a51d9a8fafe55a350b17b6ffc1d73460e1f85b74bdd7b9fc8112b0e4