Malicious PDF — malware analysis report

Static analysis result for SHA-256 47a6871088327cc1…

MALICIOUS

PDF

38.6 KB Created: 2020-08-29 12:25:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b745b3b1cf5f019d1163feb3763686d SHA-1: 63676f69c6a76f0edec1643738bed2bbfa8667a7 SHA-256: 47a6871088327cc152c76fa8a33a39c19761a10d7229b2b3a6aed1c4cc7d79cb
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'Chapter 5 great gatsby questions' and the malicious URL. This suggests a social engineering lure to trick the user into clicking the link, which then redirects to a malicious site.

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.club/wix?keyword=chapter+5+great+gatsby+questions
    • https://static.usrfiles.com/ugd/b8c837_b8aeafbef4f54d0883ca3820e25ac78c.pdf
    • https://static.usrfiles.com/ugd/b8c837_2c20278505c14891a2e7a81577fb5f91.pdf
    • https://static.usrfiles.com/ugd/b8c837_a4e002446a084c3d89b6b51f2ee8b7d2.pdf
    • https://static.usrfiles.com/ugd/b8c837_d837ee67de5742c0803bfbe47eab0e5c.pdf
    • https://cdn.shopify.com/s/files/1/0433/3276/3801/files/basketball_24_app.pdf
    • https://cdn.shopify.com/s/files/1/0436/0480/3746/files/enzyme_based_biosensors.pdf
    • https://cdn.shopify.com/s/files/1/0437/8315/9969/files/functional_foods_review.pdf
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/99505333384.pdf
    • https://cdn.shopify.com/s/files/1/0430/0649/2823/files/94829736096.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vuzodatusowajukekef.pdf
    • https://cdn.shopify.com/s/files/1/0438/9958/4680/files/rekoninisituxunefe.pdf
    • https://cdn.shopify.com/s/files/1/0439/0780/9448/files/bible_commentary_old_testament.pdf
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/25418076048.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_off00004d3b.bin
74e68c9d2d586023ec512886b70b8a27f069230a5438e8280b54b000570cb737		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D3B 5444 bytes
font_01_sfnt_off00005fbd.bin
f5485432d8b50495f004dde694b57bc194729baed9eaa691d319e974077255a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FBD 9388 bytes
font_02_sfnt_off00007fa4.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FA4 4324 bytes

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