Malicious PDF — malware analysis report

Static analysis result for SHA-256 a54ecdb046cdca73…

MALICIOUS

PDF

45.2 KB Created: 2020-08-30 15:05:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9c8ca67abd2310dc9b322356223f19c4 SHA-1: 80a9c4144547c55a05e1605588f97225c77956f4 SHA-256: a54ecdb046cdca73a710d99f508fff386cdfbb8ae6775d7a0f16b2e462f85dcb
150 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 'ttraff.com'. This URL is flagged as a malicious redirector. The document body, though partially corrupted, suggests a lure related to 'multiplication tables chart up to 10', which is likely a pretext to encourage clicking the malicious link. The presence of numerous SEO-optimized PDF links further indicates a link farm strategy to obscure the malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=multiplication+tables+chart+up+to+10
    • https://cdn.shopify.com/s/files/1/0437/6448/2202/files/7826117741.pdf
    • https://cdn.shopify.com/s/files/1/0431/6463/1195/files/69326565814.pdf
    • https://cdn.shopify.com/s/files/1/0434/0695/0550/files/forex_hedging_strategy.pdf
    • https://cdn.shopify.com/s/files/1/0428/5680/8607/files/wisisiluwibiz.pdf
    • https://cdn.shopify.com/s/files/1/0437/3286/1079/files/bengali_alphabets_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0438/2729/8461/files/lixozo.pdf
    • https://cdn.shopify.com/s/files/1/0461/3180/6376/files/26139351497.pdf
    • https://cdn.shopify.com/s/files/1/0431/0905/6666/files/70960409954.pdf
    • https://cdn.shopify.com/s/files/1/0431/7020/1760/files/86880642957.pdf
    • https://cdn.shopify.com/s/files/1/0429/8643/8807/files/soragonaxazik.pdf
    • https://cdn.shopify.com/s/files/1/0432/9163/9966/files/buzeji.pdf
    • https://static.usrfiles.com/ugd/ed64d2_3eb9d60ce1dc40ee9f3a3354b46f99ab.pdf
    • https://static.usrfiles.com/ugd/ac72e0_1535001eced4400fb72ef5c790417da3.pdf
    • https://static.usrfiles.com/ugd/34e21e_51f4551b392e4f55bae0d6b20a993571.pdf
    • https://static.usrfiles.com/ugd/04e6f9_8db0b4c2529a44a0b2d3559391a4e58b.pdf
    • https://static.usrfiles.com/ugd/93971e_fd20c752b30c4f699f93268c2e04dcc7.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_off000069ac.bin
c2f4f5f78922cc7871e987cadbf88aaeea2e3748c860529f13335c8bb8213baa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69AC 5360 bytes
font_01_sfnt_off00007bda.bin
98e3528bb38d5d3c4c28b935f9fd9791d8220ed265891916e63b43251b838efd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BDA 14204 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.