Malicious PDF — malware analysis report

Static analysis result for SHA-256 9699d7e60008eb01…

MALICIOUS

PDF

50.9 KB Created: 2020-07-26 11:44:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b175b1725acc316e0773beab50e7cd3 SHA-1: f340267fcc2cf3876e17028571392185e32c18c2 SHA-256: 9699d7e60008eb01881e7166c444ffced50cc8d51d588d21a0f635045643f20b
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links redirects to a known malicious domain, ttraff.cc, which is flagged as a malicious redirector. This indicates a phishing or malicious content delivery attempt.

Heuristics 3

  • 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.
  • 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=acute+renal+failure+treatment+guidelines+pdf
    • http://files.aic-edu.org/uploads/1/3/0/8/130874204/ddefa.pdf
    • http://files.northwalestreeservices.com/uploads/1/3/1/4/131453114/bajokonuruputufa.pdf
    • http://files.rebekahchappell.com/uploads/1/3/2/7/132711983/3ce7641794.pdf
    • http://files.ladyartisanltd.com/uploads/1/3/1/3/131380087/5494626.pdf
    • https://cdn.shopify.com/s/files/1/0429/5753/7439/files/23310017409.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zukukujumifuxutage.pdf
    • https://cdn.shopify.com/s/files/1/0431/9716/9824/files/jezululatu.pdf
    • https://cdn.shopify.com/s/files/1/0440/6509/5845/files/85758645569.pdf
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/dorerevuvotusekorepabe.pdf
    • https://cdn.shopify.com/s/files/1/0428/7542/0835/files/33262023806.pdf
    • https://cdn.shopify.com/s/files/1/0433/4639/5304/files/90283669093.pdf
    • https://cdn.shopify.com/s/files/1/0433/2689/8344/files/67367764362.pdf
    • https://cdn.shopify.com/s/files/1/0428/2286/0966/files/jaraxegov.pdf
    • https://cdn.shopify.com/s/files/1/0434/4843/4840/files/12397849111.pdf
    • https://cdn.shopify.com/s/files/1/0433/8860/0478/files/39879874129.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/99397771733.pdf
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/wotisewokunupep.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/files

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000088ef.bin
40697489aef7246b81834dbe034d392f5ffb6096b1f7c440267e28049faad546		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88EF 5236 bytes
font_01_sfnt_off00009aa4.bin
1743e1c80c849c30a33bf68a325a84f843c1be5b6a57d0f15fe7e103e5a38adb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9AA4 10316 bytes

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