Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbe3a5c3db17ae4a…

MALICIOUS

PDF

39.8 KB Created: 2020-08-01 16:29:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9333e1465fd807e30dfc2561614568fb SHA-1: daabeb1057324626c132d8694915700e616043a7 SHA-256: cbe3a5c3db17ae4adce62ae3476c94ee3d2688c37a93e401e815cadcfabc9459
234 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1059 Command and Scripting Interpreter

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=push+code+to+github'. Additionally, it exhibits a PDF link farm behavior, with numerous links to PDFs hosted on cdn.shopify.com, the first of which is 'https://cdn.shopify.com/s/files/1/0433/3820/3290/files/35319803786.pdf'. A critical heuristic also indicates a clipboard command execution lure, suggesting the document instructs the user to copy and paste content into a shell, likely to trigger further malicious activity.

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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.ru/pify?keyword=push+code+to+github In PDF document text
    • http://files.allgeierchiropractic.com/uploads/1/3/1/4/131409333/zowaruwutolekum.pdfIn PDF document text
    • http://files.moxiechattanooga.com/uploads/1/3/2/3/132302824/84d54e8dfd8.pdfIn PDF document text
    • http://files.anxiouslittlepishy.com/uploads/1/3/2/7/132740204/9894160.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/1/0433/3820/3290/files/35319803786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5645/5067/files/84333716478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zupapinited.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9980/0217/files/lefijegilidujujorelalobab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6619/5106/files/10546634765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7338/8190/files/40656580592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/perog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6372/9557/files/sobep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5094/3142/files/gezeletibizanoburoxipew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1536/5031/files/revasuguritikepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8014/5313/files/xiwofuxulilexupowidonuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3426/4231/files/wunisuvojuwexanibam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3151/8622/files/11296469416.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_off00005b29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B29 5004 bytes
SHA-256: f563b7ac17dcfddf3ef1c2da45ae8328da1d3c72e366475cc65e64c1e3f20b9d
font_01_sfnt_off00006c2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C2D 12160 bytes
SHA-256: fe1040f4053f0e2155a8a0d1a51dd1e4466711af39f3de080a3bc38524de7a67