Malicious PDF — malware analysis report

Static analysis result for SHA-256 a03cd1551d20cd3b…

MALICIOUS

PDF

46.5 KB Created: 2020-08-19 19:28:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cc1f1df6b6a54c3cf8a0794417127562 SHA-1: b98c9c533c7eb75d5ca645eebe9fa33db471737e SHA-256: a03cd1551d20cd3baf8a959ee4af749e82984b2a4f4b5aec51c194032bf6390c
194 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which, 'https://ttraff.cc/pify?keyword=ibm+cognos+support+guide', is identified as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is an 'Ibm cognos support guide', likely a lure to entice users to click the malicious link. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm designed to obscure the malicious destination.

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.cc/pify?keyword=ibm+cognos+support+guide In PDF document text
    • http://files.brtrescue.org/uploads/1/3/0/8/130814169/xizofivub.pdfIn PDF document text
    • http://files.troutbum.ca/uploads/1/3/2/7/132710655/046c6686a.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/1/0440/0391/7974/files/factors_affecting_consumer_buying_behaviour.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3557/4943/files/8074827529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9724/1240/files/wixuguvajamabaxuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8003/8053/files/502447985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8035/8815/files/37979098045.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1850/1799/files/map_clues_osrs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9681/0396/files/57805101594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1532/3291/files/sumamaroderilewek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5293/3024/files/92945992419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6921/0773/files/zatepeteximogod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1121/1425/files/ruwolira.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_off0000783e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x783E 5228 bytes
SHA-256: 0ec50a44f518a86e1902913c944692578b3be35899ec6a66ff10daa04703f71f
font_01_sfnt_off000089e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89E8 10464 bytes
SHA-256: 1e8f5899f27bd0ba8761516608620befeb0776e8c418d9a5e3b044f2fa556359

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