Malicious PDF — malware analysis report

Static analysis result for SHA-256 31126eeffe504fe0…

MALICIOUS

PDF

40.1 KB Created: 2020-09-03 13:49:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8684359d1ce480924e2baf396f5f298a SHA-1: 096cb1dfdfc57355c6b21c6ed458332561ec134a SHA-256: 31126eeffe504fe04d97b394e5c966ac16e5e425dd81fd0b3f1450200fb1f02a
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains embedded links that point to a known malicious redirector, ttraff.com. This redirector is likely used to obscure the final destination and potentially deliver a malicious payload. The document body, though heavily obfuscated, contains references to the redirector URL and a benign-looking PDF file hosted on Shopify, suggesting a lure to disguise malicious activity. The presence of multiple external PDF links further indicates a link farm or redirection strategy.

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/wix?keyword=book+folding+alphabet+patterns+free++pdf
    • https://cdn.shopify.com/s/files/1/0433/2273/6798/files/bofopumabet.pdf
    • https://cdn.shopify.com/s/files/1/0438/6730/8187/files/augusto_cury_livros_em.pdf
    • https://cdn.shopify.com/s/files/1/0430/8421/8532/files/80692535751.pdf
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/75252897706.pdf
    • https://static.usrfiles.com/ugd/409ca8_589f1bd2f1a44044a2b41fe61ad09296.pdf
    • https://static.usrfiles.com/ugd/2e79a6_ee9b1e6295644ee186af70cee940acfb.pdf
    • https://static.usrfiles.com/ugd/50c35f_3dd6bda710584928bbed36a593d5da10.pdf
    • https://static.usrfiles.com/ugd/78c764_157f35c7f2414fd5b57e3ceab3dce86e.pdf
    • https://static.usrfiles.com/ugd/5af86b_531018fe2978413ca698d4681821c3bb.pdf
    • https://cdn.shopify.com/s/files/1/0431/0702/5060/files/bringing_words_to_life_beck.pdf
    • https://cdn.shopify.com/s/files/1/0434/9001/7430/files/13846794172.pdf
    • https://cdn.shopify.com/s/files/1/0433/6173/0719/files/pelafi.pdf
    • https://cdn.shopify.com/s/files/1/0436/9629/1994/files/shine_on_crazy_diamond_tab.pdf
    • https://cdn.shopify.com/s/files/1/0431/7095/5415/files/82726717632.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_off0000509a.bin
6a82caba82c3bae07fa203af5667dde525496d6fa56662ab1fc28039ad95a2ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x509A 5344 bytes
font_01_sfnt_off000062b4.bin
8b4bf57e53a88b275bee1ab518e334d26c9a0a4ca157b44ddac96f52227ab3ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62B4 10060 bytes
font_02_sfnt_off00008521.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8521 4324 bytes

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