Malicious PDF — malware analysis report

Static analysis result for SHA-256 c49d22d62c041b93…

MALICIOUS

PDF

40.1 KB Created: 2020-08-30 03:23:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8bde7b2c85973ac55e375d7caa096b76 SHA-1: bec7456d49a56b14d3b56595d48322b65fa5c498 SHA-256: c49d22d62c041b93133c203abedc91571764e5224679bdd57cd903af602d8463
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link pointing to ttraff.com, which is used in SEO spam campaigns. Additionally, it features a large number of embedded links, many of which point to Shopify domains hosting PDF files, suggesting a link farm or SEO manipulation tactic. The document body contains garbled text but includes the URL https://ttraff.com/wix?keyword=bongo+music+audio+free, indicating a lure for free audio content. No scripts were extracted, but the presence of a malicious redirector and a large number of outbound links suggests a phishing or malware distribution attempt.

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=bongo+music+audio+free
    • https://cdn.shopify.com/s/files/1/0436/0703/1966/files/assassin_s_creed_unity_full_indir.pdf
    • https://cdn.shopify.com/s/files/1/0439/5221/0088/files/zedotadeb.pdf
    • https://cdn.shopify.com/s/files/1/0438/0993/1426/files/wamuvuti.pdf
    • https://cdn.shopify.com/s/files/1/0431/5866/7430/files/aetna_medicare_part_d_prior_authorization_form.pdf
    • https://static.usrfiles.com/ugd/269bb8_31cf696d415c41bca84ef645748da5d4.pdf
    • https://static.usrfiles.com/ugd/f3ecbe_ec32486ed4b34485af417973ae2b3d1b.pdf
    • https://static.usrfiles.com/ugd/b8c837_17376b6bd9934ff083e0f0db4aa49056.pdf
    • https://static.usrfiles.com/ugd/bf650e_c3caab7d275845ca955efddc10757ddc.pdf
    • https://static.usrfiles.com/ugd/2c8d66_d2155c3ebaf14fb8b3179691f0d2026a.pdf
    • https://cdn.shopify.com/s/files/1/0445/8260/0868/files/lonesifusixol.pdf
    • https://cdn.shopify.com/s/files/1/0428/3337/9487/files/xuxuzepizenulafimikiz.pdf
    • https://cdn.shopify.com/s/files/1/0431/3035/5866/files/79218055446.pdf
    • https://cdn.shopify.com/s/files/1/0431/2678/4157/files/81102624281.pdf
    • https://static.usrfiles.com/ugd/b8c837_27b9f03b846f48aaba7ca3a38fd34522.pdf
    • https://static.usrfiles.com/ugd/b8c837_175f96dd976f40d58580415c47c74b16.pdf
    • https://static.usrfiles.com/ugd/b8c837_95001d34ee8e49c4b1531279102e7e6d.pdf
    • https://static.usrfiles.com/ugd/52b593_cdab9aff833348f5bdc2b42fc115abc4.pdf
    • https://static.usrfiles.com/ugd/5b9365_9cdc1e6f47124dc792c7c53171470de6.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_off00005275.bin
65e824e910217a1272cf45b778eeab305ec2c9d8766c3914883b3e3878120724
pdf-font-stream PDF embedded font (sfnt) at offset 0x5275 5160 bytes
font_01_sfnt_off000063d9.bin
ca1d60cbe23df35ae673e7b622ff90577d6b222913943b43683875b20e754e17
pdf-font-stream PDF embedded font (sfnt) at offset 0x63D9 9856 bytes
font_02_sfnt_off00008582.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x8582 4324 bytes