Malicious PDF — malware analysis report

Static analysis result for SHA-256 265f74fe07e12079…

MALICIOUS

PDF

46.8 KB Created: 2020-08-18 14:04:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a32ba9d44e2120b7fbaf3278ead41a8 SHA-1: df692755ed4d2df4d19f027a245b10519004d89c SHA-256: 265f74fe07e12079a66100ac50d98a92c3c9e64a6f17fa8bd76d772715b9d762
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 pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.com. This indicates a likely attempt to redirect users to a malicious site, possibly for phishing or to serve further malware. The document body, though heavily obfuscated, contains the target URL, reinforcing the malicious intent.

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=poesia+bucolica+pdf
    • http://files.taekwondobarbados.org/uploads/1/3/0/9/130969652/b91c36.pdf
    • http://verifug.janeandjohnqpublic.com/uploads/1/3/2/7/132712207/6516528.pdf
    • http://files.axsbeta.org/uploads/1/3/1/4/131482975/jojitonizax-ponulu-xojotutuloxiv-rurunufow.pdf
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/typing_test_hack.pdf
    • https://cdn.shopify.com/s/files/1/0430/6586/8437/files/riwowalepudate.pdf
    • https://cdn.shopify.com/s/files/1/0430/0704/9877/files/53334098203.pdf
    • https://cdn.shopify.com/s/files/1/0438/5662/5829/files/sudukev.pdf
    • https://cdn.shopify.com/s/files/1/0437/7480/4126/files/vuwokomexenigonumeteb.pdf
    • https://cdn.shopify.com/s/files/1/0431/7567/4024/files/82421046459.pdf
    • https://cdn.shopify.com/s/files/1/0431/8996/0861/files/12540980033.pdf
    • https://cdn.shopify.com/s/files/1/0432/9635/8565/files/6th_grade_essay_writing_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0428/5726/7359/files/49772272954.pdf
    • https://cdn.shopify.com/s/files/1/0430/9696/5269/files/wuwupilobinorujopajunul.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_off00006147.bin
42ee132a903603aaa18c966aa1b46db585178031d89d416cd9b129bb62b7fda1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6147 5196 bytes
font_01_sfnt_off000072f8.bin
c1433fbad7311e42748ddafb45be4b7ba3bd2963f6b94c387d5a04d4d70d71d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72F8 10888 bytes
font_02_sfnt_off00009674.bin
d26fdce492fb9e8c49f527e3a91555393c735dd4d56e489be838b86a3f7c22b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9674 16488 bytes

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