Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6cc7e4fadf6d092…

MALICIOUS

PDF

39.1 KB Created: 2020-08-25 01:20:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bbd5b1f49dd2d02cb274ac906e74e22f SHA-1: 1ae83665b60e61695b2da515d817e3112260b07d SHA-256: a6cc7e4fadf6d09282797530fc61d8467b572cf846f0c5fa003e2db9614592a4
150 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one pointing to a known malicious redirector. The document body text, though heavily obfuscated, contains references to 'Call of Duty Ghost PC Game' and the malicious URL, suggesting a lure to download a game. The primary malicious link is https://ttraff.com/pify?keyword=call+of+duty+ghost+pc+game, which is likely part of a phishing or malware distribution chain.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=call+of+duty+ghost+pc+game
    • http://xilaxezag.lforlupus.com/uploads/1/3/0/7/130775451/2663980.pdf
    • https://cdn.shopify.com/s/files/1/0431/2930/7293/files/jibagosidukanepuferupuza.pdf
    • https://cdn.shopify.com/s/files/1/0434/6360/6429/files/fiximuv.pdf
    • https://cdn.shopify.com/s/files/1/0427/9861/2636/files/xutobolo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6819/4978/files/sokefesufisidi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2891/4087/files/dowitapagoxujepesupur.pdf
    • https://cdn.shopify.com/s/files/1/0434/8028/5348/files/sahih_bukhari_online.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gidawibozifuniji.pdf
    • https://cdn.shopify.com/s/files/1/0431/7547/7416/files/24253341221.pdf
    • https://cdn.shopify.com/s/files/1/0431/6820/2901/files/23780756665.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_off00005c00.bin
e2dd25b6fa6fd999c748d669f48af182ae7420d719544c0a81ced3295cacf7ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C00 5480 bytes
font_01_sfnt_off00006e98.bin
3171c1862c8ef6b748c22ef351c3ae414fab45d35991e53ae8dd0c6adbb74ff0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E98 9760 bytes

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