Malicious PDF — malware analysis report

Static analysis result for SHA-256 de0d6c2d88d7a501…

MALICIOUS

PDF

50.8 KB Created: 2020-08-09 04:05:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 71df5a34575a3710d5f1b7548f43daa2 SHA-1: 1e9060d6b404f9733d5638147359f2452fcdcdb9 SHA-256: de0d6c2d88d7a501d0b1a12a5a9e60837291d91854c338d4334ea7beba0b5ec2
128 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'algorithmic trading systems' and a URL that appears to be a download lure. The presence of a 'Visual download / call-to-action button lure' heuristic further supports this. The primary malicious URL is https://ttraff.com/pify?keyword=winning+algorithmic+trading+systems+pdf, which likely leads to further malicious content.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=winning+algorithmic+trading+systems+pdf
    • http://files.portercountyrepublicans.org/uploads/1/3/1/3/131380354/7142b9f0.pdf
    • http://files.goldstarenrichment.com/uploads/1/3/1/4/131406202/903960.pdf
    • http://files.balmdotcalm.net/uploads/1/3/1/3/131380849/pilowugevon.pdf
    • http://satusu.myssatraining.com/uploads/1/3/2/6/132680813/defefeful.pdf
    • https://cdn.shopify.com/s/files/1/0431/1213/6855/files/10060618082.pdf
    • https://cdn.shopify.com/s/files/1/0430/9850/5369/files/21258265376.pdf
    • https://cdn.shopify.com/s/files/1/0433/0081/5006/files/96460250348.pdf
    • https://cdn.shopify.com/s/files/1/0431/0754/9338/files/icue_void_visualizer.pdf
    • https://cdn.shopify.com/s/files/1/0434/4836/9309/files/koduborexinewuzemu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6167/4133/files/tuxogebikubupoxav.pdf
    • https://cdn.shopify.com/s/files/1/0434/3490/1660/files/nunuse.pdf
    • https://cdn.shopify.com/s/files/1/0432/2616/9503/files/jukemul.pdf
    • https://cdn.shopify.com/s/files/1/0432/8462/7624/files/arranging_words_alphabetically.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8011835234.pdf
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/gewupefepovopukebowok.pdf
    • https://cdn.shopify.com/s/files/1/0430/1373/4563/files/1546700495.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_off000088d2.bin
79d5bc41a8bc5971e88b29ee988aef6085fb5f085c776a0cb05483c9b20132ff
pdf-font-stream PDF embedded font (sfnt) at offset 0x88D2 5684 bytes
font_01_sfnt_off00009c15.bin
350a4a12e1fa939e3524c85c1c97a590d9860ba47f925d284aba6a8738408ed3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C15 10016 bytes