Malicious PDF — malware analysis report

Static analysis result for SHA-256 39a64d704453bb34…

MALICIOUS

PDF

39.4 KB Created: 2020-08-25 22:51:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aa995a365ff4e7284236f6046347cdfd SHA-1: 50bda22d36760af3e3faca6491fb9c094e4131d2 SHA-256: 39a64d704453bb34eeec8c7c196fab3d22673851de60543db5509f7acc0b3fa1
150 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as a travel book, aiming to lure users to a harmful destination. The heuristic firings indicate it's a malicious redirector and part of a link farm. The document body explicitly mentions "Paraiso travel libro pdf completo" and contains the malicious URL, reinforcing the social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=paraiso+travel+libro+pdf+completo
    • http://gutar.callibreezekennels.com/uploads/1/3/1/3/131383544/xalozonozilop-jifajejunetu-satiz-joleb.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jidaxuno.pdf
    • https://cdn.shopify.com/s/files/1/0434/7016/0032/files/airlift_full_hd_movie_khatrimaza.pdf
    • https://cdn.shopify.com/s/files/1/0435/9897/1038/files/74156064234.pdf
    • https://cdn.shopify.com/s/files/1/0433/8361/9736/files/afaan_oromo_books.pdf
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/gevijibosi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1154/7037/files/62391196353.pdf
    • https://cdn.shopify.com/s/files/1/0432/1571/6513/files/lumixamikokebowoxakid.pdf
    • https://cdn.shopify.com/s/files/1/0434/2326/9014/files/33709288432.pdf
    • https://cdn.shopify.com/s/files/1/0434/1337/3084/files/arduino_programming_codes.pdf
    • https://cdn.shopify.com/s/files/1/0434/0255/9655/files/rogudunukama.pdf
    • https://cdn.shopify.com/s/files/1/0432/1509/3924/files/vovalibofizunaloxo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0212/5733/files/apk_adobe_premiere_pro_for_laptop.pdf
    • https://cdn.shopify.com/s/files/1/0432/5271/1586/files/59431891182.pdf
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/77817211748.pdf
    • https://cdn.shopify.com/s/files/1/0431/1810/0637/files/15666616710.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_off00005bae.bin
d74e4f419b87b4e864872b2c012392b3ffd71e5d35bde1b520d051c2033220ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BAE 5500 bytes
font_01_sfnt_off00006e4f.bin
68116a6f8743b222b8b55a6dd235e088afcbb8bbd2c6f71f161c94e80d15619d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E4F 10088 bytes

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