Malicious PDF — malware analysis report

Static analysis result for SHA-256 d23ffa248489a126…

MALICIOUS

PDF

51.9 KB Created: 2020-08-23 19:07:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56639b632af9445585c8742b6612fdab SHA-1: fc524decaca17bc065b864832f73492bb0d67ef7 SHA-256: d23ffa248489a1265a13c8e39ff93408991cc14560a8904d1d3b1197731b9e00
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=elementary+student+biography+template'. This URL is embedded within the document body, suggesting a phishing or social engineering attempt to lure the user to malicious content. The file also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farm techniques used to distribute malicious content. No scripts were extracted from this sample.

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.cc/pify?keyword=elementary+student+biography+template
    • http://files.rominaberenicecanet.com/uploads/1/3/1/4/131453276/d122727a6a7.pdf
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/2386823309.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6278/files/15734923378.pdf
    • https://cdn.shopify.com/s/files/1/0434/7068/4317/files/14577004308.pdf
    • https://cdn.shopify.com/s/files/1/0430/2356/4957/files/70239099495.pdf
    • https://cdn.shopify.com/s/files/1/0431/6217/3602/files/30626166862.pdf
    • https://cdn.shopify.com/s/files/1/0429/9672/7957/files/46552669227.pdf
    • https://cdn.shopify.com/s/files/1/0441/0766/1464/files/aphasia_workbook.pdf
    • https://cdn.shopify.com/s/files/1/0434/3234/5765/files/avplayer_stop_ing.pdf
    • https://cdn.shopify.com/s/files/1/0440/8773/8533/files/tosifuwoxafiwadomedin.pdf
    • https://cdn.shopify.com/s/files/1/0432/1126/0062/files/xifajibidaku.pdf
    • https://cdn.shopify.com/s/files/1/0431/5414/5444/files/uninstall_mysql_server_mac.pdf
    • https://cdn.shopify.com/s/files/1/0429/7677/2250/files/32985828408.pdf
    • https://cdn.shopify.com/s/files/1/0431/9870/9917/files/panofesepopapesidifivejel.pdf
    • https://cdn.shopify.com/s/files/1/0428/9495/0556/files/vikings_orientation_capping.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_off00007828.bin
2ecba1e08d6a612930f22b8f292be65bdf734fe7ec06d3f9a08a6ff2864f269f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7828 5572 bytes
font_01_sfnt_off00008aea.bin
9ba6bd8ded8b2a615fbc887f4dc417e3fdc162332c6102ab8cde76c10cecb865
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AEA 10024 bytes
font_02_sfnt_off0000ad5c.bin
df1d2c903cabdf2976887e260da0b25217edeb5ce2b71f315001024534e8e210
pdf-font-stream PDF embedded font (sfnt) at offset 0xAD5C 16060 bytes