Malicious PDF — malware analysis report

Static analysis result for SHA-256 85a28beb36e12e4f…

MALICIOUS

PDF

41.4 KB Created: 2020-08-21 14:21:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c15a031459055fdeaddcc728a6c3ffb SHA-1: 9aee6b258e733f181086b2699b19dafc684bf2e4 SHA-256: 85a28beb36e12e4fb30dbc64c6073ad78c5c9a45127d1aae0afaf4355002f1fa
120 Risk Score

Malware Insights

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

The PDF was identified as malicious due to its inclusion of a link farm pointing to numerous external PDF files. One of these links, https://ttraff.cc/pify?keyword=eve+faction+warfare+guide+deutsch, is known to redirect to malicious infrastructure. The document body contains garbled text but includes the same malicious URL and several benign-looking Shopify URLs, suggesting a lure to download further content or redirect the user. No scripts were extracted from this sample.

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=eve+faction+warfare+guide+deutsch
    • http://wipane.poplarridgecommunitycenter.com/uploads/1/3/2/7/132710797/5049009.pdf
    • http://files.michaeljduarte.com/uploads/1/3/2/7/132710784/girawu-wulode-jidofojazuf.pdf
    • https://cdn.shopify.com/s/files/1/0441/4432/8856/files/tedibalunedelepetowu.pdf
    • https://cdn.shopify.com/s/files/1/0435/8553/6161/files/ischemic_heart_disease_definition.pdf
    • https://cdn.shopify.com/s/files/1/0451/0951/0297/files/assignment_abroad_times_today_2020.pdf
    • https://cdn.shopify.com/s/files/1/0452/5680/2461/files/wild_animals_worksheets_british_council.pdf
    • https://cdn.shopify.com/s/files/1/0439/3887/3512/files/92069865908.pdf
    • https://cdn.shopify.com/s/files/1/0428/2118/9788/files/65527651271.pdf
    • https://cdn.shopify.com/s/files/1/0441/2411/1000/files/generador_electrico_eolico_casero.pdf
    • https://cdn.shopify.com/s/files/1/0432/6473/7448/files/facebook_ad_coupon.pdf
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/york_chiller_manuals.pdf
    • https://cdn.shopify.com/s/files/1/0438/2100/7005/files/jurnal_atavisme.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_off000062f9.bin
045f2bf115bed9894d231326328c277588de9b3688c5139a7670fc641b525c74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62F9 5360 bytes
font_01_sfnt_off0000754c.bin
577fdef5fe846e9a433383d5bbb70b675f4b3aa5511c989cb25ebd0e9226f01b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x754C 10336 bytes

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