Malicious PDF — malware analysis report

Static analysis result for SHA-256 a31ea976640a2c28…

MALICIOUS

PDF

42.4 KB Created: 2020-08-09 01:39:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a7896a9566a4d546be098b3df1335d3 SHA-1: 0e2a1dbe951ffcebc25ab674d425d92bdb4d7db3 SHA-256: a31ea976640a2c2829b360176ddaf266c8f3a6d0d92144985ae9ac5f7403a7cc
120 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, with a critical heuristic identifying it as a link farm. The primary embedded URL, 'https://ttraff.com/pify?keyword=gym+workout+routine+for+beginners+pdf', is a known malicious redirector. The document body, though heavily obfuscated, contains text related to workout routines, suggesting a lure to entice users to click the malicious link. The presence of many Shopify-hosted PDF links indicates an attempt to blend malicious links with seemingly benign content.

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.com/pify?keyword=gym+workout+routine+for+beginners+pdf
    • http://files.socialarthaus.com/uploads/1/3/0/7/130776060/5373244.pdf
    • http://files.jamiletheteacher.com/uploads/1/3/1/0/131070633/bccefa8bcd66e.pdf
    • http://files.897788976207812023.com/uploads/1/3/2/6/132681891/netawapun-misewofeki-fozupelekijo.pdf
    • http://files.lms-art.co.uk/uploads/1/3/0/9/130968967/logir_nomiwopokel_kutubom.pdf
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/jafepevasadekikep.pdf
    • https://cdn.shopify.com/s/files/1/0428/8266/2553/files/nojogod.pdf
    • https://cdn.shopify.com/s/files/1/0434/9971/6770/files/15793409510.pdf
    • https://cdn.shopify.com/s/files/1/0431/4192/2982/files/bizitudutufuvev.pdf
    • https://cdn.shopify.com/s/files/1/0430/4994/3202/files/87603998257.pdf
    • https://cdn.shopify.com/s/files/1/0434/3093/6733/files/10672680252.pdf
    • https://cdn.shopify.com/s/files/1/0429/4829/6857/files/19372630621.pdf
    • https://cdn.shopify.com/s/files/1/0429/8804/4442/files/pixuzinamusogolizino.pdf
    • https://cdn.shopify.com/s/files/1/0439/2232/5672/files/itinerary_planner_template.pdf
    • https://cdn.shopify.com/s/files/1/0437/6117/2631/files/nutomojepimutipaxam.pdf
    • https://cdn.shopify.com/s/files/1/0430/4447/0945/files/95884081261.pdf
    • https://cdn.shopify.com/s/files/1/0431/9117/3278/files/fazip.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000666c.bin
c4746785bd9a80b1b1722b8693e82596f1a7d534183a5b80eb83475a73888092		 pdf-font-stream PDF embedded font (sfnt) at offset 0x666C 5548 bytes
font_01_sfnt_off00007957.bin
564e01afe3f77e53b88b4ae7f3f33b235919669fd8e89dfdf250d4404ff24a6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7957 10340 bytes

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