Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e3f6f78e95a3b40…

MALICIOUS

PDF

59.2 KB Created: 2020-07-25 11:07:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 729e87a5dfdb647478f6b1f48461b1e4 SHA-1: 15de4ee6afe5abf864fc10cfc022dfefa6bc10ab SHA-256: 1e3f6f78e95a3b404381613210349c41073a50ee19df9ad84b2935fab00422aa
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the primary links directs to 'ttraff.cc', a known malicious redirector. The document body, though heavily obfuscated, contains text related to sheet music, suggesting a lure to disguise the malicious intent. The presence of a link farm and a malicious redirector indicates an attempt to lead users to harmful content.

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=gute+nacht+winterreise+sheet+music In PDF document text
    • http://files.ratiocoffee.ca/uploads/1/3/1/6/131606453/62d13aae3.pdfIn PDF document text
    • http://files.abckidstherapy.com/uploads/1/3/2/7/132740584/dizoluraded-nomazafojitin.pdfIn PDF document text
    • http://files.promoteteaching.com/uploads/1/3/1/4/131453045/wulimurivofuf.pdfIn PDF document text
    • http://files.evildragonfiretheater.com/uploads/1/3/0/9/130969424/967e30b25163c.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/1/0433/4954/1017/files/16936189556.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4346/3069/files/32766385315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7217/5784/files/nurudumumajuwusefovurer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6107/6375/files/jetivugavas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1763/3949/files/40341352770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4656/8098/files/vutugunuxudaguru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9931/6639/files/95624399593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0026/5878/files/jelumujenezufujoxeguluk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5122/7048/files/54291037084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6440/0798/files/80350795523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2812/5595/files/pisaziweza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6085/3912/files/73343819452.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000072fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72FE 4404 bytes
SHA-256: 089be3d942f04332e09d91c4656245d0bca3f983d892eb0a93ea157157ba01a4
font_01_sfnt_off000082f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82F2 4900 bytes
SHA-256: e8c633c2f85588d1178574385c29549646ea9745ff8f025625a619adfe25d7e4
font_02_sfnt_off0000937d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x937D 16192 bytes
SHA-256: 8bcd30c48d5def8fe8a1dc00b3fe80fb61baddcd104c51560bc066edda499b76
font_03_sfnt_off0000c59d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC59D 17284 bytes
SHA-256: def8ebac5667650bca5ae62b27e01e93bc4887d17c0413c53be76dce30d32684