Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7e3e52c894be505…

MALICIOUS

PDF

41.0 KB Created: 2020-08-17 01:46:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e320756617aa347c26b06a43f62bfd6 SHA-1: 818cf6408d3bf6934efa4728a1ecba42c8d8a42c SHA-256: d7e3e52c894be5052b8f4c0fcaaa72aee28108256d66668ae14a6b978e5a2740
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic firings indicate that this is likely a PDF link farm, designed to manipulate search engine results or distribute malicious content through numerous external links. The primary malicious URL identified is https://ttraff.com/pify?keyword=engadget+holiday+gift+guide.

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=engadget+holiday+gift+guide
    • http://files.gametimeranches.com/uploads/1/3/1/4/131409090/simuvewebidutekame.pdf
    • http://jibat.rosconvent.ie/uploads/1/3/0/8/130814017/xelekatitesiru.pdf
    • https://cdn.shopify.com/s/files/1/0431/5018/0503/files/table_flip_emoji.pdf
    • https://cdn.shopify.com/s/files/1/0432/7846/7222/files/everquest_tailoring_guide.pdf
    • https://cdn.shopify.com/s/files/1/0438/4836/8288/files/hope_for_the_best_answer.pdf
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/kobefufiberu.pdf
    • https://cdn.shopify.com/s/files/1/0448/5827/8050/files/nfl_strength_workout.pdf
    • https://cdn.shopify.com/s/files/1/0431/4021/9041/files/80715320043.pdf
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/gegaxuzoseful.pdf
    • https://cdn.shopify.com/s/files/1/0432/9222/9797/files/ingame_wiki_mod.pdf
    • https://cdn.shopify.com/s/files/1/0428/8207/2743/files/93228510310.pdf
    • https://cdn.shopify.com/s/files/1/0434/1936/9639/files/bisacodilo_embarazo.pdf
    • https://cdn.shopify.com/s/files/1/0429/7061/1861/files/92062760350.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_off00006310.bin
af543ca46e8e79879c3118855cab3b65308f2a5404c5d1a8039383586e2fb5fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6310 4952 bytes
font_01_sfnt_off000073f4.bin
2115e50c1974bb41543b2d2408b4eb0d43c4199afde2df70aa143c2289498a18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73F4 10364 bytes

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