Malicious PDF — malware analysis report

Static analysis result for SHA-256 219f4d3267893a97…

MALICIOUS

PDF

39.4 KB Created: 2020-08-27 17:57:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5082ecd0d7e64365eb1121905e290ccd SHA-1: 99af41215599a754a5fcf14fa9143149d272d9f0 SHA-256: 219f4d3267893a9781ea0c9f8742d8c82d8fb70ac022b76600c93eac06ad6c3d
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 Shopify domains hosting other PDFs, suggesting a link farm for SEO poisoning. One critical heuristic firing indicates a PDF redirector link to 'ttraff.cc', which is known malicious infrastructure. The document body contains the text 'Notice debroussailleuse stihl fs 44' and the same malicious URL, reinforcing the lure. The primary attack pattern involves redirecting the user to malicious content via a crafted link.

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=notice+debroussailleuse+stihl+fs+44
    • http://jiwimaxod.patrickcoopermusic.com/uploads/1/3/0/8/130874493/3784238.pdf
    • http://lukef.trainingwithfausto.com/uploads/1/3/0/8/130874276/adff5476.pdf
    • http://rekokez.homesteadheritagecoop.org/uploads/1/3/0/7/130739860/6589631.pdf
    • http://zupibenad.paganscrapbooksupply.com/uploads/1/3/1/4/131482975/gapuv.pdf
    • http://files.beermedics.com/uploads/1/3/1/3/131381259/6c5fb8a.pdf
    • https://cdn.shopify.com/s/files/1/0436/3311/5289/files/46985770312.pdf
    • https://cdn.shopify.com/s/files/1/0434/2782/3765/files/50735195061.pdf
    • https://cdn.shopify.com/s/files/1/0433/6028/8927/files/65200806372.pdf
    • https://cdn.shopify.com/s/files/1/0432/9812/8036/files/fotemizudomijarebubovizos.pdf
    • https://cdn.shopify.com/s/files/1/0430/8995/2922/files/fanisudugivu.pdf
    • https://cdn.shopify.com/s/files/1/0429/2381/9175/files/annamalai_movie_in_tamilyogi.pdf
    • https://cdn.shopify.com/s/files/1/0429/8794/6133/files/10461299981.pdf
    • https://cdn.shopify.com/s/files/1/0429/4295/5676/files/geometry_translation_worksheets_grade_5.pdf
    • https://cdn.shopify.com/s/files/1/0432/2433/4498/files/93430261245.pdf
    • https://cdn.shopify.com/s/files/1/0438/7084/7131/files/ab_workout_chart.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d66.bin
8172c69770b359fae2deb9b4095674a534210804581f4690f0afd3327db3e715
pdf-font-stream PDF embedded font (sfnt) at offset 0x4D66 5084 bytes
font_01_sfnt_off00005ec2.bin
510e6d5b7dafd73d7865ccea12bbe0fbb6d6e29bf68c41c62465d03c76151d4e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC2 10712 bytes
font_02_sfnt_off00008258.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x8258 4324 bytes