Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c5f43e64615ecc8…

MALICIOUS

PDF

52.1 KB Created: 2020-08-11 04:40:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 435de48cfbd0858ce82e437788a931cd SHA-1: ad67ff4a5729652c0c533419c89aced3d1df2a67 SHA-256: 4c5f43e64615ecc825586864fd5c5e2c8693a7414a81bb1c87f46e66be01c758
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, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation or traffic redirection. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is likely the ultimate destination for malicious activity. The document body is heavily obfuscated and contains the malicious redirector URL, further supporting this attack pattern.

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=cristalografia+liquido+amniotico+pdf
    • http://files.newnamenewlife.com/uploads/1/3/1/4/131484029/memakelepemo.pdf
    • http://wawox.decoratingwithgrace.com/uploads/1/3/1/4/131407089/zibevokogusa.pdf
    • http://panetumap.ashleyjanaeart.com/uploads/1/3/0/7/130776791/vojifagikizokunitotu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0820/4708/files/campaign_cartographer_3_torrent.pdf
    • https://cdn.shopify.com/s/files/1/0441/0369/6536/files/87409844205.pdf
    • https://cdn.shopify.com/s/files/1/0438/0885/0081/files/47131695852.pdf
    • https://cdn.shopify.com/s/files/1/0430/8353/0407/files/kilabifixinux.pdf
    • https://cdn.shopify.com/s/files/1/0440/1269/9798/files/bill_of_sale_trailer.pdf
    • https://cdn.shopify.com/s/files/1/0431/1810/0637/files/30965770492.pdf
    • https://cdn.shopify.com/s/files/1/0440/6748/7894/files/35051754835.pdf
    • https://cdn.shopify.com/s/files/1/0428/9419/6902/files/24116462055.pdf
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/83499827313.pdf
    • https://cdn.shopify.com/s/files/1/0427/9785/8972/files/python_kill_process.pdf
    • https://cdn.shopify.com/s/files/1/0440/3943/8486/files/behold_a_pale_horse_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/3328/8088/files/89329576305.pdf
    • https://cdn.shopify.com/s/files/1/0430/0816/3993/files/rurawizewerodepufudun.pdf
    • https://cdn.shopify.com/s/files/1/0431/1747/8044/files/2811475156.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_off000072c2.bin
ae5356ad28f3becbf0f703ec9016640076419d8686a3ef11d3ec6117b2a67853
pdf-font-stream PDF embedded font (sfnt) at offset 0x72C2 5388 bytes
font_01_sfnt_off000084eb.bin
4d2a998120fd69c8fcb57b6a69c42a52169757efea73b7ee768775d4a8551d3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x84EB 15684 bytes
font_02_sfnt_off0000b3de.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0xB3DE 4324 bytes