Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc873260dc2728b2…

MALICIOUS

PDF

41.9 KB Created: 2020-08-18 23:22:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96848c194bfd4a4e1300025646bf669f SHA-1: 313e89d6048938a128134fd1d34a5eb14e78938c SHA-256: cc873260dc2728b2442004d9c6fbabbcfc71e881dbc76fce7465e9cc7f64d3ec
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used for SEO poisoning or to direct users to malicious sites. One of the links points to a known malicious redirector, and the document body contains text related to 'eucalyptus origins sheets' which may be a lure. The file's structure and link farm suggest a phishing or redirection attack.

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.cc/pify?keyword=eucalyptus+origins+sheets+full+size
    • http://pufojike.hockeyatlas.net/uploads/1/3/0/7/130739061/fcdf779.pdf
    • http://nidoje.redemptivedivorce.com/uploads/1/3/1/4/131407227/7105705.pdf
    • http://files.flagshipduluth.shop/uploads/1/3/1/3/131383325/fizir-rusudepiraze-seniwonov.pdf
    • http://files.tennisstoreexpress.com/uploads/1/3/0/7/130775402/183576bb6172382.pdf
    • http://files.thehomoeopathicpractice.co.uk/uploads/1/3/0/7/130775934/cca1c4fde366345.pdf
    • https://cdn.shopify.com/s/files/1/0430/9454/0452/files/femoxalo.pdf
    • https://cdn.shopify.com/s/files/1/0434/2530/0647/files/55138856458.pdf
    • https://cdn.shopify.com/s/files/1/0434/4712/4130/files/edtpa_templates_2019.pdf
    • https://cdn.shopify.com/s/files/1/0434/3375/4773/files/montage_of_heck_full_movie.pdf
    • https://cdn.shopify.com/s/files/1/0431/8078/5823/files/89534035899.pdf
    • https://cdn.shopify.com/s/files/1/0436/6077/1481/files/libros_de_ciencia_ficcion_en_ingles.pdf
    • https://cdn.shopify.com/s/files/1/0430/3103/6053/files/banikexiposenolasarewik.pdf
    • https://cdn.shopify.com/s/files/1/0436/2931/4206/files/3082422086.pdf
    • https://cdn.shopify.com/s/files/1/0431/4952/5149/files/aparato_digestivo_completo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2718/5309/files/guretetozumamuteveruz.pdf
    • https://cdn.shopify.com/s/files/1/0432/7289/6672/files/foduwemapipisuratolizo.pdf
    • https://cdn.shopify.com/s/files/1/0435/7901/5327/files/counter_strike_global_offensive_rate.pdf
    • https://cdn.shopify.com/s/files/1/0432/6467/1909/files/7678302355.pdf
    • https://cdn.shopify.com/s/files/1/0436/1663/2992/files/analgesico_opioides.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/
    • https://cdn.shopify.com/s/files/1/0432/6467/1909/files/7

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006347.bin
ced0f0f9750846f18b50234ee7cb64a2ebc59500ec2c66a738aa3c2035046fae
pdf-font-stream PDF embedded font (sfnt) at offset 0x6347 5384 bytes
font_01_sfnt_off000075a6.bin
3d582a0c56a41af7bf90a05f79940963a9528559bbe3eab114866a1b18b7c15f
pdf-font-stream PDF embedded font (sfnt) at offset 0x75A6 10860 bytes