Malicious PDF — malware analysis report

Static analysis result for SHA-256 42197ec2cf57c9b6…

MALICIOUS

PDF

146.2 KB Created: 2020-08-23 22:16:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 851298fa581426f0afcbda98758e0a63 SHA-1: 50f1465006d62c03ed777fe0ff49c6138f43db5a SHA-256: 42197ec2cf57c9b6b915432130a2ad538d6e85756ca094a7a12f440e84ff3baa
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, with a significant portion pointing to Shopify domains, suggesting a link farm for SEO manipulation. Crucially, one of the embedded links directs to 'ttraff.cc', which is flagged as a malicious redirector. This indicates a likely attempt to lure users to a malicious destination through a deceptive link.

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=assamese+bihu+dance+free
    • http://mejepaf.thepayee.com/uploads/1/3/1/3/131384244/fonelejemarid.pdf
    • http://rurova.morethanmydisability.com/uploads/1/3/1/3/131383483/verexekodebefun.pdf
    • http://files.thecampuspathfinder.com/uploads/1/3/1/4/131453944/99623748.pdf
    • http://files.brachioway.com/uploads/1/3/1/4/131437655/12f27c.pdf
    • http://files.centrepointecincinnati.com/uploads/1/3/2/7/132712080/befuteko-fevafaposuvaw.pdf
    • https://cdn.shopify.com/s/files/1/0429/5367/0822/files/amidah_en_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0427/8000/0423/files/42069274566.pdf
    • https://cdn.shopify.com/s/files/1/0431/2177/0656/files/pojakoruz.pdf
    • https://cdn.shopify.com/s/files/1/0435/7124/9311/files/fibepadegaxatomoje.pdf
    • https://cdn.shopify.com/s/files/1/0437/6703/8106/files/atoms_and_molecules_class_9_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/5115/5618/files/43825785256.pdf
    • https://cdn.shopify.com/s/files/1/0438/7530/3592/files/pdf_splitter_and_merger_free_software.pdf
    • https://cdn.shopify.com/s/files/1/0429/1995/2540/files/88941127449.pdf
    • https://cdn.shopify.com/s/files/1/0430/7012/8277/files/63556980028.pdf
    • https://cdn.shopify.com/s/files/1/0433/3587/6776/files/wasanepupewewefelom.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001e131.bin
cb2be31b70cc19ece1483a392f8f9eef8744599b0b1a4b656431c2ea71dfb29d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1E131 5356 bytes
font_01_sfnt_off0001f333.bin
2e3f2314e125ba16a1a5bb5d8583617a90ecebf28762d152dca16ea86cd65827		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1F333 16420 bytes
font_02_sfnt_off00022623.bin
541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501		 pdf-font-stream PDF embedded font (sfnt) at offset 0x22623 16204 bytes

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