Malicious PDF — malware analysis report

Static analysis result for SHA-256 d46de3c0eca3bd05…

MALICIOUS

PDF

47.5 KB Created: 2020-09-05 20:38:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ae74a4185ac1dbf24204779044ece7ad SHA-1: d5556bf3816482075418a036b82105d7b34a4204 SHA-256: d46de3c0eca3bd054108646ecb778a6d8def5a271043ad3ab673e33c4f06b0df
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=new+york+state+of+health+income+guidelines'. This indicates a phishing or scam attempt, likely aiming to direct users to a malicious site. The document body also contains this URL, reinforcing the malicious intent. The presence of a PDF link farm heuristic further suggests a tactic to distribute malicious content.

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.me/wix?keyword=new+york+state+of+health+income+guidelines
    • https://static.usrfiles.com/ugd/40512e_f3b984d24c1b4730bb4f561511ad17b9.pdf
    • https://static.usrfiles.com/ugd/1cfe37_f3d007ccffb54d51930d40a85904a5d8.pdf
    • https://static.usrfiles.com/ugd/ac51ce_229264cf536949d0b8ac3b81c9148276.pdf
    • https://cdn.shopify.com/s/files/1/0438/4125/7629/files/sony_ericsson_bluetooth_headset_hbh-_ds970_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/3365/7507/files/73133941776.pdf
    • https://cdn.shopify.com/s/files/1/0437/0874/3834/files/makukavijulogedufeti.pdf
    • https://cdn.shopify.com/s/files/1/0433/5258/8437/files/vortex_cloud_gaming_free_account.pdf
    • https://cdn.shopify.com/s/files/1/0433/5511/1589/files/bizutefudolokazoparo.pdf
    • https://cdn.shopify.com/s/files/1/0433/7922/8837/files/voripewotu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0545/2193/files/78150818897.pdf
    • https://cdn.shopify.com/s/files/1/0463/6255/8619/files/gw2_auric_basin_poi_guide.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_off00007794.bin
9fed6ddc8a0cc38535974935cf4cba2084095e588c3239cfa2838a6432855064		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7794 5660 bytes
font_01_sfnt_off00008ad5.bin
3b4b90882019cde9354466849086aa8afcf30978590d5401a14e99c9bb898777		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AD5 11536 bytes

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