Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbfe0d4a1481e042…

MALICIOUS

PDF

44.4 KB Created: 2020-09-11 22:20:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95f55ef783bb381636239ff055704c27 SHA-1: ff5d94d910fc2e5e3834950f718df766d8be4330 SHA-256: dbfe0d4a1481e042560dfd4e630e3742cddfb91e26e55320f9bed380579e9a15
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One critical heuristic identified a link to a known malicious redirector, specifically 'https://ttraff.link/wix?keyword=guild+wars+2+legendary+weapon+crafting+guide', which is disguised as a guide for the game Guild Wars 2. This 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.link/wix?keyword=guild+wars+2+legendary+weapon+crafting+guide
    • http://biduvi.roselandplan.org/uploads/1/3/1/1/131164250/8151630.pdf
    • http://files.thelearningvine.org/uploads/1/3/0/9/130969984/7286a.pdf
    • http://temukag.naplesbesthairsalon.com/uploads/1/3/2/6/132681670/d2d1e1e445e6fbc.pdf
    • https://cdn.shopify.com/s/files/1/0428/9485/2252/files/fishbone_diagram_blank_template_excel.pdf
    • https://cdn.shopify.com/s/files/1/0433/8545/4750/files/blinded_by_your_grace_piano.pdf
    • https://cdn.shopify.com/s/files/1/0430/3283/8298/files/vulum.pdf
    • https://cdn.shopify.com/s/files/1/0437/7670/4669/files/46943914535.pdf
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/jemosowo.pdf
    • https://cdn.shopify.com/s/files/1/0430/7396/2145/files/44840185453.pdf
    • https://cdn.shopify.com/s/files/1/0433/8696/2076/files/58683331441.pdf
    • https://cdn.shopify.com/s/files/1/0439/1046/3643/files/cognos_report_studio_remove_page_break.pdf
    • https://static.usrfiles.com/ugd/9904c2_35c6c94d1dbe4490acdd9c1d899e5680.pdf
    • https://static.usrfiles.com/ugd/3f80ec_5d50891913c04407a42654099f72c25e.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_off00006cde.bin
2c203a72b7bf2b11620e9b49c74653e6616464e9b91f3cc2363340928a237bfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CDE 5680 bytes
font_01_sfnt_off00008069.bin
75f2d732ddb287a0fde8c7774ad7ba82d2c81a08d0fbb5d31b4b2bd362029c5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8069 10672 bytes

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