Malicious PDF — malware analysis report

Static analysis result for SHA-256 f77474372f5ffd21…

MALICIOUS

PDF

41.7 KB Created: 2020-08-11 09:31:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62d43b4a7a825773790dcd7a53f0e3bb SHA-1: 67f6c3269b4c3119d04ae731eadd88fd19f7012b SHA-256: f77474372f5ffd21f71a61671c3242f74c78c0d818aff2f251b7bd0ecda2a41f
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with a critical heuristic firing indicating a link farm. One of the primary URLs, 'https://ttraff.com/pify?keyword=anterior+nasal+packing+pdf', is identified as a malicious redirector. This suggests the document is designed to lure users to malicious sites, likely for phishing or malware delivery. The presence of numerous links, many hosted on Shopify, further supports the link farm hypothesis.

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=anterior+nasal+packing+pdf
    • http://files.jaguerzon.com/uploads/1/3/1/4/131438888/1113475.pdf
    • http://files.readytoexhaleworkshops.com/uploads/1/3/1/3/131379099/396d163.pdf
    • http://files.poetsespressoreview.com/uploads/1/3/0/8/130814118/xikiw.pdf
    • http://files.lesliemcgeaghhypnosis.com/uploads/1/3/0/7/130776276/7917241.pdf
    • http://files.603diesels.com/uploads/1/3/1/6/131636843/3868241.pdf
    • https://cdn.shopify.com/s/files/1/0438/4666/4349/files/juluv.pdf
    • https://cdn.shopify.com/s/files/1/0433/0808/9509/files/kingdom_hearts_2._5_final_form.pdf
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/xumexudepibemujawebesiji.pdf
    • https://cdn.shopify.com/s/files/1/0430/9093/5969/files/sharebutton._to_google_analytics.pdf
    • https://cdn.shopify.com/s/files/1/0429/2640/7833/files/total_drama_island_episodes.pdf
    • https://cdn.shopify.com/s/files/1/0440/6591/5045/files/56185541587.pdf
    • https://cdn.shopify.com/s/files/1/0441/4016/7320/files/dobofimuredake.pdf
    • https://cdn.shopify.com/s/files/1/0432/2859/4344/files/22152116672.pdf
    • https://cdn.shopify.com/s/files/1/0434/0331/3308/files/77212110338.pdf
    • https://cdn.shopify.com/s/files/1/0431/3461/5706/files/kigonodes.pdf
    • https://cdn.shopify.com/s/files/1/0434/0147/8300/files/droit_de_l_urbanisme_au_cameroun.pdf
    • https://cdn.shopify.com/s/files/1/0434/6796/4580/files/juwidagebe.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_off000065b3.bin
ad160b019b1c5c0543069ea8b9f79c20986e099276f656304868bd394111952e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65B3 5376 bytes
font_01_sfnt_off00007802.bin
8692989dfe66929bf64e706efa5fbde9301b3691aad4624e10229cc61cf689d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7802 9972 bytes

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