Malicious PDF — malware analysis report

Static analysis result for SHA-256 4471f31fd50cb520…

MALICIOUS

PDF

42.7 KB Created: 2020-08-06 16:45:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 87d46d89cf3b3ceca9c5b262fa9a4dfa SHA-1: 91f388cea85933dd6704bed458374a8dcdf1cd8b SHA-256: 4471f31fd50cb520d7681421b76aaf87518844e147454a27eadea76bd0609735
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL pointing to a redirector service. This suggests the primary purpose is to redirect users to malicious content, likely for phishing or malware distribution.

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/pify?keyword=genetic+engineering+advantages+and+disadvantages+pdf
    • http://files.pillowellsilverband.com/uploads/1/3/2/6/132681985/6294044.pdf
    • http://files.funkyroosterstudios.com/uploads/1/3/0/8/130874408/sodatarop_nodexisebir_rukokil.pdf
    • http://files.brucemakotoarnold.com/uploads/1/3/1/6/131607407/futixeguxu_mizimiberuw.pdf
    • http://files.mitchellgroupinc.com/uploads/1/3/1/4/131437567/deruxu.pdf
    • http://viteviro.cyclorise.co.uk/uploads/1/3/2/6/132681670/26a17ce65f.pdf
    • https://cdn.shopify.com/s/files/1/0429/4115/3439/files/muxativuka.pdf
    • https://cdn.shopify.com/s/files/1/0428/9419/6902/files/juxew.pdf
    • https://cdn.shopify.com/s/files/1/0430/7389/6602/files/jolojadugedalit.pdf
    • https://cdn.shopify.com/s/files/1/0429/2041/1289/files/sodajotidizofavodopotaja.pdf
    • https://cdn.shopify.com/s/files/1/0428/1437/4047/files/40061483029.pdf
    • https://cdn.shopify.com/s/files/1/0429/1110/5183/files/ti_84_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/2371/1903/files/wodugeja.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/lulefobekulibuxod.pdf
    • https://cdn.shopify.com/s/files/1/0430/7661/6353/files/63386123406.pdf
    • https://cdn.shopify.com/s/files/1/0435/7108/5475/files/telataruxuvo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2436/7262/files/41353041151.pdf
    • https://cdn.shopify.com/s/files/1/0432/0608/2717/files/2503835306.pdf
    • https://cdn.shopify.com/s/files/1/0439/1724/6632/files/jewelcrafting_leveling_guide.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_off00006884.bin
219cc0963378e2228698297111f916f959342a99af650eabf09eb762a7e9260e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6884 5380 bytes
font_01_sfnt_off00007af1.bin
b903079974e197bdcadea52c3d7a7a3dcf30892bc17e2ad905bd6f8fd6b2fc5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF1 10096 bytes

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