Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0e08a1a8614e3f5…

MALICIOUS

PDF

71.3 KB Created: 2020-08-08 03:03:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06dca2f2682eedd278f67fe87f151752 SHA-1: c6952187d0f2d3027f99eeeb361d1d99e3d0e709 SHA-256: a0e08a1a8614e3f51b5c0d67df2fdd9e76b583a50a133206e0f0ab420ddfb54f
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, also contains the URL 'https://ttraff.cc/pify?keyword=articles+of+association+kenya+pdf', suggesting a lure to a malicious site. The presence of a link farm and a malicious redirector indicates a phishing or redirection attack. No scripts were extracted from this sample.

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.cc/pify?keyword=articles+of+association+kenya+pdf
    • http://files.mrstuckeysclass.com/uploads/1/3/0/7/130776841/4143467.pdf
    • http://files.shoparworkshopbelmont.com/uploads/1/3/2/3/132302940/bonumovafu-lovemazigabido.pdf
    • http://files.academicswithaplus.com/uploads/1/3/0/7/130738748/dokagit-tomolixegov-kofufafe.pdf
    • https://cdn.shopify.com/s/files/1/0430/8657/7828/files/discord_multiple_line_code_block_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/1016/9759/files/foxotebox.pdf
    • https://cdn.shopify.com/s/files/1/0432/1011/3186/files/pokemon_soul_silver_walkthrough.pdf
    • https://cdn.shopify.com/s/files/1/0429/4914/8838/files/wexogix.pdf
    • https://cdn.shopify.com/s/files/1/0438/2208/8354/files/fivigujivapepezaduposegu.pdf
    • https://cdn.shopify.com/s/files/1/0430/4447/0933/files/32033516678.pdf
    • https://cdn.shopify.com/s/files/1/0438/6953/6411/files/as_old_as_time_a_twisted_tale_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0447/0826/6137/files/fobeturugoxoralelixuzim.pdf
    • https://cdn.shopify.com/s/files/1/0445/5255/2612/files/ibps_bank_po_book.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d0be.bin
dd7b880f1c6958317b71933e3175eb4154b1281d355b69180e4ce829e506ee21		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD0BE 2828 bytes
font_01_sfnt_off0000dab8.bin
4ef5cd5f4e7cb3d3f18e849026626b04f8bdffacbab75b40be5112a8c2ca8a0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDAB8 5304 bytes
font_02_sfnt_off0000ece3.bin
d0cf975312490c5a447f7dabbddcd12ee63cdc3303e8f11676319b1adc7c0933		 pdf-font-stream PDF embedded font (sfnt) at offset 0xECE3 10284 bytes

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