Malicious PDF — malware analysis report

Static analysis result for SHA-256 2160ad0cb248b89c…

MALICIOUS

PDF

117.4 KB Created: 2020-08-30 23:08:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43a4b881e8c64056a9897fc2bbf0b157 SHA-1: e2b65b9a7e7c13d6c260fe0b2c5bd5b2f56645a6 SHA-256: 2160ad0cb248b89c459d671860affbd789c1283c2dce446b9a2f4dfb495f20a9
148 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, disguised as a search result for a technical document. It also contains a large number of links to other PDFs hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The presence of a 'download button' lure and a callback lure further supports a phishing or scam attempt. No scripts were extracted from this sample.

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.cc/wix?keyword=engineering+vibrations+inman+4th+edition+solutions
    • https://cdn.shopify.com/s/files/1/0430/0891/7657/files/jemoxiri.pdf
    • https://cdn.shopify.com/s/files/1/0437/1759/1189/files/flirting_questions_to_ask_a_girl.pdf
    • https://cdn.shopify.com/s/files/1/0428/6660/6247/files/31291824392.pdf
    • https://cdn.shopify.com/s/files/1/0465/8724/8805/files/liwopokokegotuw.pdf
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/46651208326.pdf
    • https://static.usrfiles.com/ugd/4b68be_2024154e755f49ba921d6b3a5cbb98a2.pdf
    • https://static.usrfiles.com/ugd/b8c837_a5fdf1e2391744ed851fe6f5b12bb720.pdf
    • https://static.usrfiles.com/ugd/d54300_9b749fa41833493387126f2da7132cf3.pdf
    • https://static.usrfiles.com/ugd/b8c837_618008f2ae2d4612b1a4364c1bd7a72d.pdf
    • https://static.usrfiles.com/ugd/b8c837_8a7b79ad55304ee581f461abd5d717e1.pdf
    • https://static.usrfiles.com/ugd/b8c837_6821137c406144e4a16a979c4c63d974.pdf
    • https://static.usrfiles.com/ugd/760101_0faf7173eb69482c8bb8d9fc03aa60b3.pdf
    • https://cdn.shopify.com/s/files/1/0434/2313/7957/files/business_application_letter_format.pdf
    • https://cdn.shopify.com/s/files/1/0435/4385/5258/files/apicultura_chile.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015b32.bin
6c4bcdf9cd3de0cd6c15fc82bfbf2774b751c619f876f2ac9cb1d8c9fb7d0991		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15B32 6340 bytes
font_01_sfnt_off000170a7.bin
328d9987ec335e56234ef8d15a8a51b93ad9d019a0e5229cbd2add48cbae496f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x170A7 5484 bytes
font_02_sfnt_off00018326.bin
7eefead519759ec7420e2c016d9917af276b37d7f09c15ab882ee5a060f33826		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18326 12544 bytes
font_03_sfnt_off0001ac45.bin
949e18aa4306eb290c4363ad6e16df1c402714d040fc5dec64430814ec840494		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1AC45 17716 bytes

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