Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cb3846512355e74…

MALICIOUS

PDF

69.6 KB Created: 2020-07-31 21:09:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d25132b91b9c5db664273c45da44cde0 SHA-1: 2d94faba0cfb9e1ad7eb92c040aa02c4234ee8ac SHA-256: 6cb3846512355e74e24675df6892d5acfea4b7f3613b8438838294962b8baee8
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it hosts a large number of external PDF links, many of which are hosted on Shopify. The ML classifier also strongly indicated maliciousness. The embedded URL 'https://ttraff.com/pify?keyword=magi+the+kingdom+of+magic' is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=magi+the+kingdom+of+magic
    • http://files.beyondlimits-coaching.com/uploads/1/3/1/3/131380440/f0658.pdf
    • http://files.bodkacoffee.com/uploads/1/3/0/7/130740521/4604856.pdf
    • http://files.olivianurrish.com/uploads/1/3/1/3/131379113/77f5b12ecbf.pdf
    • http://files.wormfoodforthough.net/uploads/1/3/0/9/130969243/e9c22e71c4f8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fodafozisejuleluz.pdf
    • https://cdn.shopify.com/s/files/1/0431/1996/8417/files/91006395261.pdf
    • https://cdn.shopify.com/s/files/1/0428/5664/4774/files/99674557518.pdf
    • https://cdn.shopify.com/s/files/1/0440/6879/8614/files/95175463278.pdf
    • https://cdn.shopify.com/s/files/1/0438/6953/6411/files/66976389493.pdf
    • https://cdn.shopify.com/s/files/1/0441/0625/2440/files/gejitib.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52665001447.pdf
    • https://cdn.shopify.com/s/files/1/0432/5657/8212/files/fefibolovuzebu.pdf
    • https://cdn.shopify.com/s/files/1/0427/7708/4070/files/67306973534.pdf
    • https://cdn.shopify.com/s/files/1/0432/2256/5032/files/pebesilesa.pdf
    • https://cdn.shopify.com/s/files/1/0437/1814/8261/files/23833171414.pdf
    • https://cdn.shopify.com/s/files/1/0431/7003/7911/files/65632493392.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009706.bin
88bc505f64201cd8a77b07b312781f9978b644539a097c92f3b93a77c86387a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9706 18928 bytes
font_01_sfnt_off0000d38e.bin
beea79f4f03396e29e67c9e38aee12abd4937ad782c5beb5d789ce3b1e1fc48a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD38E 5200 bytes
font_02_sfnt_off0000e52c.bin
8b0efdec421f793a44fcaa1eef105c9ba0f6376b004c2806d1d3bfaa624b4eab		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE52C 9924 bytes

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