Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fbb949de0c98d98…

MALICIOUS

PDF

42.5 KB Created: 2020-08-01 08:01:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a02cea022f3276ee06aa93ee9cf2eb7 SHA-1: 77253ad6c3a775ff19920cfa3b2cd590074a51b6 SHA-256: 8fbb949de0c98d98735d70d853e98e21f1913be680f94a0cd747a878415d7fcc
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and appears to be a lure for watching a movie. The PDF also contains a large number of external links, many hosted on Shopify, which is flagged as a link farm. The primary malicious URL is 'https://ttraff.com/pify?keyword=where+to+watch+ratatouille', which likely leads to further malicious content or phishing attempts.

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=where+to+watch+ratatouille
    • http://files.mult.honest-elections.com/uploads/1/3/2/6/132682235/kuzejibunusun.pdf
    • http://files.banditaerialproductions.net/uploads/1/3/0/7/130775200/5422f09cad48d8.pdf
    • http://files.codeelectricmqt.com/uploads/1/3/1/0/131069812/7459308.pdf
    • http://files.darkdjproductions.com/uploads/1/3/2/6/132682882/6168159.pdf
    • https://cdn.shopify.com/s/files/1/0437/8827/1777/files/udp_coppersurfer_tk_6969_announce.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93366398369.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9354/files/joluzo.pdf
    • https://cdn.shopify.com/s/files/1/0428/2230/3911/files/50698503977.pdf
    • https://cdn.shopify.com/s/files/1/0436/0568/8483/files/28667109676.pdf
    • https://cdn.shopify.com/s/files/1/0435/1141/4943/files/14261199798.pdf
    • https://cdn.shopify.com/s/files/1/0431/2095/1450/files/supabolomavovurosulat.pdf
    • https://cdn.shopify.com/s/files/1/0437/8034/1917/files/20802657473.pdf
    • https://cdn.shopify.com/s/files/1/0429/7038/2490/files/vogebirire.pdf
    • https://cdn.shopify.com/s/files/1/0428/1267/0111/files/65007906636.pdf
    • https://cdn.shopify.com/s/files/1/0431/6345/1560/files/pafuvogavagogikokibuvi.pdf
    • https://cdn.shopify.com/s/files/1/0432/3573/7764/files/niwuvafijimeraxiva.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/60233972239.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_off00006852.bin
c099715da0f1e9c7fe3e82c31bada6e92ff5f1134323533286cb23f1932ae76e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6852 4816 bytes
font_01_sfnt_off000078c5.bin
4546afc85aa2a80bc354d26ffe006b4817d644365e00a62a12841ddca56ab0d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78C5 10700 bytes

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