Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8d66371ebe5e5c6…

MALICIOUS

PDF

41.0 KB Created: 2020-08-24 19:21:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46ab9fcbbefb59b0b93529aede3281d9 SHA-1: 8438e857f8cd48db0678e2486b99685dbe04e5ec SHA-256: e8d66371ebe5e5c6609943cd664ab5a2acb833dc9d424644556f81c36870d0e4
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, ttraff.com, disguised with a keyword related to medication dosage. It also functions as a link farm, hosting numerous other PDF files on Shopify domains, likely for SEO manipulation to improve search engine ranking for malicious content. The document body, though heavily obfuscated, contains the malicious URL and references to dosage information, reinforcing the lure.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=advil+migraine+dosage+information
    • http://files.consumerschoicepos.com/uploads/1/3/1/4/131437685/zufugevejupiwu.pdf
    • http://files.maddieberry.com/uploads/1/3/1/4/131453657/bojavezumatodasuto.pdf
    • http://sinuzeb.myattsfieldspark.info/uploads/1/3/1/6/131606289/7136794.pdf
    • http://files.upperfirstlutheran.org/uploads/1/3/1/4/131438439/fasekafinixipikunez.pdf
    • https://cdn.shopify.com/s/files/1/0429/5029/5708/files/tinkle_magazine_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/7327/4010/files/dafobafanaj.pdf
    • https://cdn.shopify.com/s/files/1/0457/6680/3622/files/bionaire_humidifier_bcm630_user_manual.pdf
    • https://cdn.shopify.com/s/files/1/0440/3481/8198/files/buzedorijigo.pdf
    • https://cdn.shopify.com/s/files/1/0436/1935/2740/files/uchunguzi_wa_agano_jipya.pdf
    • https://cdn.shopify.com/s/files/1/0431/6217/3604/files/sutaruvikunexofafumox.pdf
    • https://cdn.shopify.com/s/files/1/0436/9186/8313/files/99554191720.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dogudanivivakow.pdf
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/94832839709.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_off00006041.bin
83066ee1e7f3899d5902202fc463f88a634736282c29196469add779108405b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6041 5276 bytes
font_01_sfnt_off0000721b.bin
791d682b2fd39834841b792054063d93a87396f067188a9a4653c502d072af8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x721B 10672 bytes

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