Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fa76a52df404b76…

MALICIOUS

PDF

42.4 KB Created: 2020-08-31 00:13:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c398807ae51275fc584864c186c855f SHA-1: 175c23f9bdb65f6a10ce551c32a10b3694ed7184 SHA-256: 2fa76a52df404b767ec41ff273fd03c49e8fe02a4b6d27042eea42385b7eed87
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised as 'Cleveland Indians trivia'. The document also functions as a link farm, embedding numerous links to Shopify-hosted PDFs, likely to manipulate search engine results and distribute malicious content. The primary malicious URL is the redirector.

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/wix?keyword=cleveland+indians+trivia
    • https://cdn.shopify.com/s/files/1/0429/7631/3503/files/20495458900.pdf
    • https://cdn.shopify.com/s/files/1/0440/5939/4213/files/pediselem.pdf
    • https://cdn.shopify.com/s/files/1/0429/7300/3939/files/45000055915.pdf
    • https://cdn.shopify.com/s/files/1/0430/5498/9466/files/taguxa.pdf
    • https://cdn.shopify.com/s/files/1/0435/2635/7152/files/jepizoz.pdf
    • https://cdn.shopify.com/s/files/1/0447/0204/0217/files/28307318232.pdf
    • https://cdn.shopify.com/s/files/1/0430/3929/3593/files/rusijobalibamivometopag.pdf
    • https://cdn.shopify.com/s/files/1/0429/6661/4175/files/wujuxuvuxamabokawarobu.pdf
    • https://cdn.shopify.com/s/files/1/0432/1506/1153/files/20690057039.pdf
    • https://cdn.shopify.com/s/files/1/0433/5193/3078/files/50916897556.pdf
    • https://cdn.shopify.com/s/files/1/0434/1104/6558/files/73877767302.pdf
    • https://cdn.shopify.com/s/files/1/0430/9821/0461/files/zabewifomodidozutimebora.pdf
    • https://cdn.shopify.com/s/files/1/0434/0331/3315/files/succession_planning_process.pdf
    • https://cdn.shopify.com/s/files/1/0432/5618/4996/files/lafosanisiwe.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_off00005d61.bin
f2b4dc5f4c40e6009acb1bfa0244bc3f7577cde996204a7d5c34c60f2c72abf1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D61 4580 bytes
font_01_sfnt_off00006cf5.bin
da12b509e5a6bb1b9a222a5aebfa7bfd3113867a7d1234cd94b9543b75c694a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF5 9968 bytes
font_02_sfnt_off00008f13.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F13 4324 bytes

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