Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea76ea1195b0bbd2…

MALICIOUS

PDF

44.0 KB Created: 2020-08-21 20:44:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8caa1d4485156e7af1e750b84f7895ab SHA-1: 0f99eca56918fec6894ede2ea6f0d6cfcebc0407 SHA-256: ea76ea1195b0bbd23218920130a9741ef75ff94bb12f3b6868ce43731ae317da
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'free printable party invitation templates' and the malicious URL, suggesting a lure. The PDF also contains a link farm heuristic, indicating a large number of outbound links, many of which point to Shopify domains hosting PDF files, likely to improve search engine ranking for the lure 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=free+printable+party+invitation+templates+uk
    • http://files.toddwyant.com/uploads/1/3/1/8/131856624/4188643.pdf
    • http://zotup.allthebiscuitsingeorgia.com/uploads/1/3/1/4/131452890/6504597.pdf
    • https://cdn.shopify.com/s/files/1/0433/0877/7637/files/29164578287.pdf
    • https://cdn.shopify.com/s/files/1/0432/0791/7729/files/bylaws_template.pdf
    • https://cdn.shopify.com/s/files/1/0431/9982/4032/files/31410663524.pdf
    • https://cdn.shopify.com/s/files/1/0434/6914/4230/files/705359911.pdf
    • https://cdn.shopify.com/s/files/1/0432/0670/5311/files/javogatagefavujun.pdf
    • https://cdn.shopify.com/s/files/1/0433/9079/5941/files/daxogoraminufosuzerobabov.pdf
    • https://cdn.shopify.com/s/files/1/0435/9284/3422/files/come_down_o_love_divine_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0437/6897/1421/files/gixuvefazab.pdf
    • https://cdn.shopify.com/s/files/1/0429/6962/8828/files/historia_del_alfabeto_griego.pdf
    • https://cdn.shopify.com/s/files/1/0434/0678/6725/files/film_photography_books.pdf
    • https://cdn.shopify.com/s/files/1/0437/5465/1799/files/children_s_learning_reading_books_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/0531/2156/files/zalawusapofidos.pdf
    • https://cdn.shopify.com/s/files/1/0429/5573/5199/files/63097550227.pdf
    • https://cdn.shopify.com/s/files/1/0430/8018/8058/files/soulless_gail_carriger.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_off00005f95.bin
c0b2b1051b48a899d30b8b91038d26c481b8cb38deb1e5b09b0137267cf5b837
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F95 5168 bytes
font_01_sfnt_off0000710f.bin
dfc9e9fdd9729cc9799d16bb9419051159218ab457cfefa78673149eb1d06669
pdf-font-stream PDF embedded font (sfnt) at offset 0x710F 10336 bytes
font_02_sfnt_off00009466.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9466 4324 bytes