Malicious PDF — malware analysis report

Static analysis result for SHA-256 8af42ddf1128f2cd…

MALICIOUS

PDF

35.6 KB Created: 2020-08-21 11:28:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 941a61411ac7ea04e094227994ab6f4c SHA-1: 6a4e48adb18ca65177b7498d0b2c898be821f6f8 SHA-256: 8af42ddf1128f2cd18ef8b29d0c481881b538b500623d69bf55b754d72475718
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. Additionally, PDF_SEO_LINK_FARM indicates a large number of embedded links, many of which are hosted on Shopify but point to various external domains. The document body contains the text 'Beka boy new song video', suggesting a lure to attract clicks on the embedded links. The primary malicious URL identified is ttraff.com, which is likely used for further redirection.

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=beka+boy+new+song+video
    • http://junitet.friscotxfencing.com/uploads/1/3/0/8/130874575/1214522.pdf
    • http://matix.quentinguitar.com/uploads/1/3/0/7/130738546/zovuka-zaxage-zoxojivim-xiwus.pdf
    • http://pevipijir.runtogetlucky.com/uploads/1/3/0/9/130969426/nolosix.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/13121593915.pdf
    • https://cdn.shopify.com/s/files/1/0454/7251/4206/files/takonoxo.pdf
    • https://cdn.shopify.com/s/files/1/0433/8368/5270/files/20156692245.pdf
    • https://cdn.shopify.com/s/files/1/0434/3994/7932/files/buxexukilan.pdf
    • https://cdn.shopify.com/s/files/1/0451/0951/0297/files/nuvavalofonenuxinir.pdf
    • https://cdn.shopify.com/s/files/1/0437/8604/3541/files/59090853011.pdf
    • https://cdn.shopify.com/s/files/1/0433/0956/4064/files/68495617777.pdf
    • https://cdn.shopify.com/s/files/1/0429/8178/5753/files/846475267.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_off00004109.bin
7575b49e829adcc9cf9b8eaf0aa820dbda8c492561eb9cc131b64deca3bbad2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4109 5080 bytes
font_01_sfnt_off00005279.bin
16c2dcd06426123d71a18688692b18f3eca7215b29d2f8471eee5842da09d044		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5279 10128 bytes
font_02_sfnt_off000073f1.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73F1 4324 bytes

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