Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bd532288b1a776d…

MALICIOUS

PDF

51.9 KB Created: 2020-08-06 02:14:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 854728742af186954dec5690cce52885 SHA-1: 64ed5a9a8d199d886f760a76de0bc0b737e685bb SHA-256: 3bd532288b1a776d7310a3fffad326d18f4d24943a9d1849783a4846cad05262
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one to a known malicious redirector at 'ttraff.ru'. This redirector is disguised with a query parameter suggesting a '30 day ketogenic diet plan free pdf', indicating a social engineering lure. The presence of a large number of external PDF links, many pointing to Shopify, suggests a link farm or SEO manipulation tactic to distribute malicious content. No scripts were extracted, but the primary attack vector appears to be the redirection to malicious infrastructure.

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=30+day+ketogenic+diet+plan+free+pdf
    • http://files.cicadabridal.com/uploads/1/3/1/8/131856770/5b4e790525.pdf
    • http://files.artfarmflowers.com/uploads/1/3/2/6/132681836/navoxumajeriw.pdf
    • http://files.theventure.blog/uploads/1/3/1/6/131606923/2826909.pdf
    • https://cdn.shopify.com/s/files/1/0432/2754/5763/files/cours_complet_amplificateur_oprationnel.pdf
    • https://cdn.shopify.com/s/files/1/0429/8306/3715/files/serbian_orthodox_bible_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0428/7548/6367/files/nidir.pdf
    • https://cdn.shopify.com/s/files/1/0431/5188/4445/files/falorolelo.pdf
    • https://cdn.shopify.com/s/files/1/0437/6382/6840/files/vokoxum.pdf
    • https://cdn.shopify.com/s/files/1/0431/7426/4993/files/como_realizar_un_proyecto_de_investigacion.pdf
    • https://cdn.shopify.com/s/files/1/0430/0757/4179/files/peduloniru.pdf
    • https://cdn.shopify.com/s/files/1/0434/4443/7144/files/gotalabubilig.pdf
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/14962757110.pdf
    • https://cdn.shopify.com/s/files/1/0433/9725/1235/files/44092357923.pdf
    • https://cdn.shopify.com/s/files/1/0427/4126/8647/files/rarixodetipuredoluxoxabu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2865/9874/files/mazak_operating_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/2586/6662/files/62024317490.pdf
    • https://cdn.shopify.com/s/files/1/0431/5450/5885/files/kubujaxizeleb.pdf
    • https://cdn.shopify.com/s/files/1/0429/5213/0716/files/39172789495.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_off00007f55.bin
29bf44dab5b2df16a83bb93b14ae15f389acb4954af51d57ce2c45000f391359
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F55 5308 bytes
font_01_sfnt_off00009178.bin
e0e87284691684bfadf7bd8f6284c7eda23dccfebfa3d539d2113af6be51f0cf
pdf-font-stream PDF embedded font (sfnt) at offset 0x9178 10080 bytes
font_02_sfnt_off0000b3f6.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xB3F6 4324 bytes