Malicious PDF — malware analysis report

Static analysis result for SHA-256 989a19458aa2b104…

MALICIOUS

PDF

40.3 KB Created: 2020-08-25 00:52:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 148a5ce5f0b6de56215253135025a7c5 SHA-1: 21d1c1bc2292a9cc72c591127664b17ea71c33c6 SHA-256: 989a19458aa2b104c69f699e8ede4975e45facd55df64910d31ff01225c9aef0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged as malicious by a machine learning classifier and contains a link to a known malicious redirector service. It also features a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or a method to disguise malicious destinations. The presence of the redirector URL indicates an attempt to obscure the true nature of the attack, likely leading to phishing or malware distribution.

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.com/pify?keyword=avg+free+windows+xp+32+bit In PDF document text
    • http://demul.forgecraftsteelfabricators.co.uk/uploads/1/3/1/4/131483152/natutipa.pdfIn PDF document text
    • http://files.centraleastwoodrugby.com/uploads/1/3/0/7/130776485/0237a15ab.pdfIn PDF document text
    • http://files.stuartpeterman.com/uploads/1/3/1/6/131606434/84ea15892.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/1/0435/6397/4805/files/mandatory_reporting_act_victoria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3518/7605/files/letter_of_recommendation_template_for_medical_student.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6174/7620/files/ralumenirare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8127/7342/files/4407564542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0496/0661/files/date_format_in_uae.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16711599054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9005/1221/files/development_economics_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1128/4893/files/66359417040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6455/5680/files/98964180578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3153/5522/files/xazolumezesonoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6748/7894/files/god_of_wonders_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4895/1194/files/dagobunafumorufes.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005824.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5824 5612 bytes
SHA-256: 23c25368696b9f84e43d60a03d4bfa2d8bac922f2d0ef43ad7613bb5b0391171
font_01_sfnt_off00006b6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B6E 12204 bytes
SHA-256: 9f175a03514641707f034e003db280fc7a8bdd352b9b4b287ffa741155a09446

Open this report in the interactive analyzer, or submit your own file for analysis.