Malicious PDF — malware analysis report

Static analysis result for SHA-256 b39dd3ff57a4f019…

MALICIOUS

PDF

39.6 KB Created: 2020-08-29 21:59:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ad77377f4e70da214acc8fe588d61fa SHA-1: 596fd0700acfa415ee9e15a6833fcae84186ff8e SHA-256: b39dd3ff57a4f0198fda107ef4ddc18f7744f8e3ded5a1f004b7e03d26ef1935
120 Risk Score

Malware Insights

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

The PDF document contains a link to a known malicious redirector, ttraff.ru, which is likely part of a phishing or scam campaign. The document body, though heavily obfuscated, contains references to 'Samsung galaxy a96 clon' and the malicious URL, suggesting a lure to a fake product page or scam. The presence of numerous other 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.ru/wix?keyword=samsung+galaxy+a96+clon
    • http://bltlly.co
    • https://cdn.shopify.com/s/files/1/0428/7594/5113/files/bowuvitusovuwipoluxireno.pdf
    • https://cdn.shopify.com/s/files/1/0430/9978/3319/files/nudeti.pdf
    • https://cdn.shopify.com/s/files/1/0437/6333/5319/files/xemuropizar.pdf
    • https://static.usrfiles.com/ugd/b8c837_a910ebb2b4f94c85bd93113981655c12.pdf
    • https://static.usrfiles.com/ugd/9ff9b8_6182c0c1f4ab435292946387a603622a.pdf
    • https://static.usrfiles.com/ugd/b8c837_d5708ec81aa04e80abf8143ce2ac87a4.pdf
    • https://static.usrfiles.com/ugd/b8c837_41e091a9e74441d1ab7d59b58a3b6bc5.pdf
    • https://static.usrfiles.com/ugd/b8c837_a88913aca34a46ac801ddf5c6929cbb0.pdf
    • https://static.usrfiles.com/ugd/e73fea_ae1d84405b4c4fe0b9ba47c3c0c44539.pdf
    • https://cdn.shopify.com/s/files/1/0437/3633/4485/files/96802973914.pdf
    • https://cdn.shopify.com/s/files/1/0433/8289/8840/files/kataden.pdf
    • https://cdn.shopify.com/s/files/1/0431/0643/5232/files/14281554144.pdf
    • https://cdn.shopify.com/s/files/1/0437/0785/9096/files/canon_of_taxation_by_adam_smith.pdf
    • https://cdn.shopify.com/s/files/1/0432/7741/8651/files/vavalozisu.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_off00005a3a.bin
f23bbdb435d752240a9011c70314b07c5e34036d437c352bcfffd2c4cc6bd981		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A3A 5608 bytes
font_01_sfnt_off00006d43.bin
bea277888de83db26a8dd3267220a5c1f1eef21ff4fd273ff1b26704dd771868		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D43 10768 bytes

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