PDF malware analysis — malicious · 77b88aedc35d3941

MALICIOUS

PDF

39.5 KB Created: 2020-08-14 21:02:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 1bac865977218c6acee8c1115c599755 SHA-1: 2294213aba80b166b4477aa5412d667830311d05 SHA-256: 77b88aedc35d3941e4ca577635099bbc404ce5f61de668c3b2bcd58a12db5dd8

130 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link farm and a malicious redirector link, indicating an attempt to direct users to harmful content. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.com/pify?keyword=richard+clayderman+piano+music+sheet as malicious. The PDF_SEO_LINK_FARM heuristic indicates a large number of external PDF links, many hosted on cdn.shopify.com, suggesting a tactic to distribute malicious content or improve search engine ranking for malicious sites.

Heuristics 4

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.
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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=richard+clayderman+piano+music+sheet
- http://files.queenletiziastyle.com/uploads/1/3/0/8/130814430/jemawer.pdf
- http://files.chamisachocolate.com/uploads/1/3/2/6/132695428/6052314.pdf
- https://cdn.shopify.com/s/files/1/0429/8624/2209/files/28603181754.pdf
- https://cdn.shopify.com/s/files/1/0434/4909/0200/files/jazz_vocal_book.pdf
- https://cdn.shopify.com/s/files/1/0430/9378/6791/files/livre_analyse_2.pdf
- https://cdn.shopify.com/s/files/1/0432/5697/1432/files/fekavituf.pdf
- https://cdn.shopify.com/s/files/1/0429/4321/7830/files/case_files_obgyn_5th_edition_download.pdf
- https://cdn.shopify.com/s/files/1/0432/2017/2957/files/60881587032.pdf
- https://cdn.shopify.com/s/files/1/0430/1104/7575/files/17161884693.pdf
- https://cdn.shopify.com/s/files/1/0432/2004/1886/files/55298043185.pdf
- https://cdn.shopify.com/s/files/1/0433/3341/9166/files/70773577167.pdf
- https://cdn.shopify.com/s/files/1/0433/0881/0398/files/punctuation_rules_uk.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- https://cdn.shopify.com/s/file

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005095.bin` `08cfbea2f91391646e6c50c48112d1714d3e033be1501bab69d6279da8378666`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5095	5424 bytes
`font_01_sfnt_off000062d4.bin` `daeabc9ae32f0170af018034206da36b615b538ad94b4b8b4d954fb2a06fe6c0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62D4	2276 bytes
`font_02_sfnt_off00006d37.bin` `2ffa556e5c0a286c3d2b454bfc8edfcfcd668f054542315c4f4193398778c24e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6D37	10344 bytes

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