Malicious PDF — malware analysis report

Static analysis result for SHA-256 eef441989d4c7484…

MALICIOUS

PDF

61.0 KB Created: 2020-08-09 03:40:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d1022261bc79472adb8e3ee919257bc SHA-1: e7800fa004d83327bf187ac378d46610f8a50c6b SHA-256: eef441989d4c7484780b6d107fb60d43042534c9c724380a47c48b8f93668730
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one heuristic specifically identifying it as a PDF link farm. The primary malicious URL, 'https://ttraff.ru/pify?keyword=ccdc+14+pdf', is flagged as a known malicious redirector. This suggests the document's purpose is to lure users to malicious sites, likely for SEO poisoning or phishing campaigns.

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.ru/pify?keyword=ccdc+14+pdf
    • http://tozer.enlightenedastrologycourse.com/uploads/1/3/1/4/131408899/5de9db9d0f.pdf
    • http://goluso.conference2classroom.ca/uploads/1/3/0/7/130775735/mugef_latodiz_gatudawowaku.pdf
    • http://files.classicallivinghistoryforkids.com/uploads/1/3/0/9/130969148/10f603916.pdf
    • http://files.aigrettesilkens.com/uploads/1/3/0/9/130969080/tugibex.pdf
    • http://dopow.mosiacpreschool.com/uploads/1/3/1/4/131483281/larewewuzoz.pdf
    • https://cdn.shopify.com/s/files/1/0435/8956/6627/files/rezalakofomidifazire.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96258555683.pdf
    • https://cdn.shopify.com/s/files/1/0430/3205/1873/files/wejubiwo.pdf
    • https://cdn.shopify.com/s/files/1/0437/2063/8632/files/knight_physics_workbook_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0434/9624/3364/files/hoover_power_scrub_deluxe_carpet_washer_manual.pdf
    • https://cdn.shopify.com/s/files/1/0436/9724/2280/files/sowagarupufopene.pdf
    • https://cdn.shopify.com/s/files/1/0436/9468/6376/files/babalevegolotedopepazo.pdf
    • https://cdn.shopify.com/s/files/1/0430/4103/0293/files/57393872030.pdf
    • https://cdn.shopify.com/s/files/1/0429/7624/7971/files/wagos.pdf
    • https://cdn.shopify.com/s/files/1/0433/5943/6951/files/66592589578.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_off0000b482.bin
d7b52bfda8a29f9e6bc4d724ab7317eacfefda7151d5ab7be5e1a1db01934982		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB482 4676 bytes
font_01_sfnt_off0000c48b.bin
a300a86d1bd9059cb85a2739f62ec61d9d0e84d6cda1d19a724c380084efe0e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC48B 10228 bytes

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