Malicious PDF — malware analysis report

Static analysis result for SHA-256 30f367d241fbaea3…

MALICIOUS

PDF

43.3 KB Created: 2020-08-09 08:20:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6380ab4fa68ee7ac3d3e06522a496060 SHA-1: 481737d360be275b81f944f44b45f8405a58ef07 SHA-256: 30f367d241fbaea39c2878b267b5c252d8ce96f4e4924459dd5a8517921ed309
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=calisthenics+for+beginners+book+pdf'. This URL is likely part of a phishing or scam campaign designed to trick users into downloading further malicious content or visiting malicious sites. The document body also contains this URL and numerous other links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic to attract victims.

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=calisthenics+for+beginners+book+pdf
    • http://files.ellipseatlantic.com/uploads/1/3/1/0/131070173/mibezogez.pdf
    • http://files.redpegecostudio.com/uploads/1/3/1/8/131871642/2802491.pdf
    • http://files.czonecoaching.com/uploads/1/3/1/3/131398088/261876.pdf
    • https://cdn.shopify.com/s/files/1/0434/0570/5374/files/62339916897.pdf
    • https://cdn.shopify.com/s/files/1/0432/0195/3952/files/41875124528.pdf
    • https://cdn.shopify.com/s/files/1/0429/2775/1321/files/padax.pdf
    • https://cdn.shopify.com/s/files/1/0433/5036/0232/files/gta_sanandreas_trainers.pdf
    • https://cdn.shopify.com/s/files/1/0428/1974/8006/files/favunigaguvuj.pdf
    • https://cdn.shopify.com/s/files/1/0437/1726/3510/files/balistica_tecnica_y_forense.pdf
    • https://cdn.shopify.com/s/files/1/0437/1818/1016/files/como_aprender_a_leer.pdf
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/how_to_check_if_homebrew_is_installed.pdf
    • https://cdn.shopify.com/s/files/1/0433/6638/3768/files/4458587982.pdf
    • https://cdn.shopify.com/s/files/1/0433/8394/7427/files/tratamento_de_aneurisma_cerebral.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94430640368.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/femepotufitaxaturu.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/43045369326.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_off00006a7f.bin
70a714ecd2a1d94c0e692529fc3f7b63cbff71b549585b4ede07e0d8138071ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A7F 5524 bytes
font_01_sfnt_off00007d34.bin
7d9dee8b01c0b141554c284df3875408c81a3f42b21d4fa01b03e12a7dce5256		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D34 10260 bytes

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