Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0ef7ab7f5ae4e0c…

MALICIOUS

PDF

46.5 KB Created: 2020-08-22 23:17:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 969c225f6777c7f9a4c9d2204897e441 SHA-1: 21b702ec028d4de7986a9c1ef9bb767fa5bef22d SHA-256: a0ef7ab7f5ae4e0c6841cf5e6401991419c9eac56385fb99659d8d51adf7c21e
120 Risk Score

Malware Insights

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

The PDF contains a lure promising free music, which is a common social engineering tactic. It embeds multiple links, including a critical redirector link to 'ttraff.cc'. This redirector is likely used to obscure the final malicious destination. The document body, though partially corrupted, contains the lure text and the redirector URL.

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.cc/pify?keyword=free+music+to+your+android+phone
    • http://files.myungleeart.com/uploads/1/3/1/6/131637701/69c566cc932.pdf
    • http://files.ohiobiplanes.com/uploads/1/3/1/8/131872149/jarenuzaxisixo-lilobuge-sixinonewidi.pdf
    • http://dafufugat.aerosportoutfitter.com/uploads/1/3/2/8/132814930/6349438.pdf
    • https://cdn.shopify.com/s/files/1/0434/7101/2006/files/bharat_acharya_microprocessor_notes.pdf
    • https://cdn.shopify.com/s/files/1/0430/5554/6517/files/zuradobujipugexiso.pdf
    • https://cdn.shopify.com/s/files/1/0431/1806/7876/files/jovemagemapowerusaditapux.pdf
    • https://cdn.shopify.com/s/files/1/0440/3612/8933/files/dejipevufuromil.pdf
    • https://cdn.shopify.com/s/files/1/0430/8310/4409/files/54714018547.pdf
    • https://cdn.shopify.com/s/files/1/0440/7685/9557/files/advanced_auditing_notes.pdf
    • https://cdn.shopify.com/s/files/1/0436/0539/3571/files/www_ehawaii_gov_annuals.pdf
    • https://cdn.shopify.com/s/files/1/0429/5848/7715/files/certificate_of_incorporation_sample.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_off000079cd.bin
50e90c8154b433d0524ebac06dd059a519fe54b71da21712bd8ec3f88aa2b4a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79CD 5336 bytes
font_01_sfnt_off00008bc9.bin
3b4b3c3715447ab6003a01e5aad523275ba9c7f16465160aeff002c0bf0d2034		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BC9 9932 bytes

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