Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1a51a73b9537886…

MALICIOUS

PDF

43.7 KB Created: 2020-08-13 21:47:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65d31738150a1e6b2a65720508b84411 SHA-1: 2905e90782ca171272fb9426782c5d7c0af247bc SHA-256: b1a51a73b95378864c9e6dcb870f609a4590ade357b557ae35a5b49a7ab1d42a
120 Risk Score

Malware Insights

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

The PDF document contains a link farm designed to mimic search results, specifically for 'call of duty mobile emulator pc'. The primary malicious link, https://ttraff.cc/pify?keyword=call+of+duty+mobile+emulator+pc, is a redirector, indicating an attempt to lead the user to a malicious site. The document body, though heavily obfuscated, contains this URL and other links that appear to be part of a SEO poisoning or link farm strategy.

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.cc/pify?keyword=call+of+duty+mobile+emulator+pc
    • http://files.mauimadison.com/uploads/1/3/1/8/131871730/daveridiwepapo-movarimatifenit-vulowapuga.pdf
    • http://files.wellnesslifestylelounge.com/uploads/1/3/1/4/131482931/wowatano-zonoluxu-lipizut.pdf
    • http://files.nccrabbingandshrimping.com/uploads/1/3/0/7/130776008/4077c03bc876a.pdf
    • http://zafelodug.cyberconnecting.net/uploads/1/3/1/4/131453540/pexemitimajogorefif.pdf
    • https://cdn.shopify.com/s/files/1/0437/8981/1861/files/boogie_woogie_free_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0434/8723/2166/files/95981426122.pdf
    • https://cdn.shopify.com/s/files/1/0427/8085/2383/files/lokiwonizadujoriditoxuz.pdf
    • https://cdn.shopify.com/s/files/1/0437/7935/8869/files/pdf_page_splitter_download.pdf
    • https://cdn.shopify.com/s/files/1/0448/0620/9702/files/agenda_at_katitikan_ng_pulong.pdf
    • https://cdn.shopify.com/s/files/1/0454/4741/3910/files/baldur_s_gate_enhanced_edition_walkthrough.pdf
    • https://cdn.shopify.com/s/files/1/0432/3203/4980/files/25271930579.pdf
    • https://cdn.shopify.com/s/files/1/0430/8546/3713/files/kadutivabenezudixedus.pdf
    • https://cdn.shopify.com/s/files/1/0433/9014/0583/files/nuwivopakora.pdf
    • https://cdn.shopify.com/s/files/1/0434/1887/8117/files/62039342754.pdf
    • https://cdn.shopify.com/s/files/1/0445/5910/6212/files/dotemako.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_off000069df.bin
ea3fb79ea23924ddc4aad9392c9b835fd1d3d30d77eb5535741c178bf3fa0164		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69DF 5268 bytes
font_01_sfnt_off00007bb8.bin
507fb6b25338b0696f4d6cde2655f7d4f7f6029a509fe3110f999ba3e497271e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB8 10740 bytes

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