Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3f4306711acac67…

MALICIOUS

PDF

45.6 KB Created: 2020-08-23 12:09:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 557fe5f990099c0cc16e2898efa34c46 SHA-1: e4063d7fd9aa92bd6b39abb09cb3dbaabe1eae50 SHA-256: b3f4306711acac67f13276471767ffca9313f540e01eff46f05b6c0715428542
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, masquerading as a 'makeup box image' to entice clicks. One of the primary links redirects through known malicious infrastructure at 'ttraff.com'. The document also functions as a link farm, pointing to numerous other PDFs hosted on various domains, increasing the attack surface. No scripts were extracted, but the extensive use of malicious and redirector links indicates a phishing or malware distribution attempt.

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=makeup+box+image
    • http://files.jomopride.org/uploads/1/3/0/7/130775033/ruzipip.pdf
    • http://vajebabal.bcpreventionnetwork.com/uploads/1/3/1/6/131637562/3e0e2eff2a93.pdf
    • http://koromusud.hipsterleaks.com/uploads/1/3/0/9/130969627/nubadozogawifidenig.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zebegevuda.pdf
    • https://cdn.shopify.com/s/files/1/0431/0630/4166/files/106054955.pdf
    • https://cdn.shopify.com/s/files/1/0438/1392/9122/files/95611899069.pdf
    • https://cdn.shopify.com/s/files/1/0433/4921/3349/files/reduce_screen_tearing.pdf
    • https://cdn.shopify.com/s/files/1/0435/9074/6271/files/definition_of_family_planning.pdf
    • https://cdn.shopify.com/s/files/1/0437/5927/2090/files/15476910368.pdf
    • https://cdn.shopify.com/s/files/1/0434/4827/1000/files/62125543980.pdf
    • https://cdn.shopify.com/s/files/1/0432/1899/3320/files/norinobizomuravaje.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_off000074d2.bin
2c3e50e8e7d16c433fb9902e00babbbfa846f42644137ddd1b1fd0057f6ee22e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74D2 5108 bytes
font_01_sfnt_off00008630.bin
72db6128dcf10228d9ec446a15b0e024d11ca45d18a68d3887b5996a356aa47b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8630 10488 bytes

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