Malicious PDF — malware analysis report

Static analysis result for SHA-256 46afb53d4563b4bc…

MALICIOUS

PDF

33.8 KB Created: 2020-08-01 17:49:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c06d2a3c67e9e83e16714cbaea0c884d SHA-1: 674c2c1182a64e53fa0bee377030158be6d31f86 SHA-256: 46afb53d4563b4bceb54d249f117ad5b2ef043c1fd2e1f1d44f190b0edcba036
150 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical link to a known malicious redirector at 'https://ttraff.com/pify?keyword=www+sipeliculas+com'. This indicates a likely attempt to direct the user to a malicious site for phishing or malware delivery. The ML classifier also strongly flagged this PDF as malicious.

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.com/pify?keyword=www+sipeliculas+com
    • http://files.hcountrycare.com/uploads/1/3/0/7/130776861/simusere_sisemudutur_demuzirelubapa.pdf
    • http://files.radiantmoonchild.com/uploads/1/3/1/4/131407164/linaroborivarav.pdf
    • http://files.chapmanstvservices.com/uploads/1/3/1/6/131606252/7698870.pdf
    • http://files.thefischerhaus.com/uploads/1/3/0/7/130739544/f08754.pdf
    • http://files.be-boosted.org/uploads/1/3/0/7/130739144/2250418.pdf
    • https://cdn.shopify.com/s/files/1/0432/8207/1716/files/25111596290.pdf
    • https://cdn.shopify.com/s/files/1/0429/1752/7715/files/10185932637.pdf
    • https://cdn.shopify.com/s/files/1/0429/4885/3926/files/97743026740.pdf
    • https://cdn.shopify.com/s/files/1/0432/6785/0390/files/70531234627.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pawatofamilafal.pdf
    • https://cdn.shopify.com/s/files/1/0429/9295/9642/files/wuzubi.pdf
    • https://cdn.shopify.com/s/files/1/0430/0842/6143/files/46626514142.pdf
    • https://cdn.shopify.com/s/files/1/0436/4242/1398/files/xosevesivepelasow.pdf
    • https://cdn.shopify.com/s/files/1/0432/5661/0979/files/silamule.pdf
    • https://cdn.shopify.com/s/files/1/0432/8721/6293/files/wobekereguzunobadutif.pdf
    • https://cdn.shopify.com/s/files/1/0440/1342/0702/files/temoxivetewenovil.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_off000046df.bin
578a02ba676f427735ac437f425732f6d127a638c43058438c83918d37adb278		 pdf-font-stream PDF embedded font (sfnt) at offset 0x46DF 5088 bytes
font_01_sfnt_off00005839.bin
96384cc8ce44a212d6ab9ef9604229b20be0c040bcbea4ca3672576c9de64a77		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5839 10004 bytes

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