Malicious PDF — malware analysis report

Static analysis result for SHA-256 bebddbfa7c69b8a6…

MALICIOUS

PDF

42.1 KB Created: 2020-08-25 22:17:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f35f43aac2ccce743726bcd488716c0 SHA-1: 23d4e3c22f9ef2bd4c3a9b12870afbb8b4834692 SHA-256: bebddbfa7c69b8a6751d1a4c1cb82641d1525e653c11e073f63149a353c51b99
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged for containing a malicious redirector link and a large number of external PDF links, suggesting a link farm or a method to obscure malicious content. The primary malicious URL identified is https://ttraff.ru/pify?keyword=que+es+manifiesto. The document body contains garbled text and embedded URLs, further supporting the malicious intent.

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.ru/pify?keyword=que+es+manifiesto
    • http://xuxabama.etsysask.ca/uploads/1/3/1/4/131437254/pasoj.pdf
    • http://lipakikap.parkavenueparties.com/uploads/1/3/0/7/130776406/5852535.pdf
    • http://files.susiegourlay.com/uploads/1/3/1/4/131406068/tolokoboj.pdf
    • https://cdn.shopify.com/s/files/1/0431/4939/4080/files/85212485284.pdf
    • https://cdn.shopify.com/s/files/1/0431/1423/4013/files/77158673974.pdf
    • https://cdn.shopify.com/s/files/1/0435/8003/1137/files/47146740221.pdf
    • https://cdn.shopify.com/s/files/1/0434/2212/2151/files/80393975765.pdf
    • https://cdn.shopify.com/s/files/1/0429/2955/3575/files/zaterunusi.pdf
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/32611458628.pdf
    • https://cdn.shopify.com/s/files/1/0432/2754/5763/files/food_catering_company_profile.pdf
    • https://cdn.shopify.com/s/files/1/0433/4678/8502/files/94392328514.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_off0000664b.bin
c179c2b04490b1980c115e2745d7ad981c64c98b616ded5653874be41efbda38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x664B 4848 bytes
font_01_sfnt_off000076b9.bin
192097940a58d4b470532584936f16381dd9c373b38cf8e6ef515c610590e322		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76B9 11156 bytes

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