Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9a8b64b252dd4b3…

MALICIOUS

PDF

39.4 KB Created: 2020-08-24 08:05:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94cfa13f71c8f9f09da4a80ad9f920b7 SHA-1: 1a08c830781df1d14b78706223c4d42cccef8876 SHA-256: e9a8b64b252dd4b30b97e91b3c69cbf30ea01c67d62dd079d4c72a0548e84a55
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF SEO link farm. One of these links, https://ttraff.com/pify?keyword=android+9+para+o+j7+prime, is flagged as a malicious redirector. This suggests the document's primary purpose is to lure users into clicking malicious links, likely leading to phishing pages or malware downloads.

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=android+9+para+o+j7+prime
    • http://peresa.themovementbasics.com/uploads/1/3/0/7/130739063/8828257.pdf
    • http://files.madisonswcd.org/uploads/1/3/1/0/131070291/fc8e0.pdf
    • https://cdn.shopify.com/s/files/1/0429/8611/1137/files/73874008199.pdf
    • https://cdn.shopify.com/s/files/1/0434/5472/6310/files/wofoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/3825/2954/files/93350417226.pdf
    • https://cdn.shopify.com/s/files/1/0429/5829/1093/files/bokoliv.pdf
    • https://cdn.shopify.com/s/files/1/0437/5085/0714/files/antimicrobial_stewardship_doh.pdf
    • https://cdn.shopify.com/s/files/1/0433/6815/3253/files/joriw.pdf
    • https://cdn.shopify.com/s/files/1/0461/0549/3667/files/zosewogokuzuvavib.pdf
    • https://cdn.shopify.com/s/files/1/0433/4003/8298/files/sincerely_me_sheet_music_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/2893/7880/files/airpods_volume_up_android.pdf
    • https://cdn.shopify.com/s/files/1/0430/6593/3985/files/96656866122.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_off00005863.bin
b7c28ae19834971b6b27969c5d50db2ead09ee52fea884d5461e2c4f71c86814		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5863 5196 bytes
font_01_sfnt_off00006a05.bin
0241e21975f42aa6209bfbdbf9ccc7473b2641a43dadf8a0c8e3af203200da23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A05 11924 bytes

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