Malicious PDF — malware analysis report

Static analysis result for SHA-256 c847dbdaa1db496f…

MALICIOUS

PDF

43.5 KB Created: 2020-08-11 02:16:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 787b98df45361109a72954819313ecfd SHA-1: 0cf5e70ceb927a7a72ff53542f7fbefb80601655 SHA-256: c847dbdaa1db496f4015a8dd59f2a2d6356ad46e30a5b27219ea56448ece7331
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links, many of which point to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=all+my+loving+lyrics+pdf', suggesting a lure to download further content. The presence of a malicious redirector indicates an attempt to deliver a secondary payload or phish for credentials.

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=all+my+loving+lyrics+pdf
    • http://files.savebozeman.org/uploads/1/3/1/4/131408529/80336d.pdf
    • http://files.immlawcounsel.com/uploads/1/3/1/3/131398097/webebir_finepizezomoxor_rejuzavot.pdf
    • http://files.parksvillerx.com/uploads/1/3/0/7/130775897/4118476.pdf
    • http://files.ibnghareeb.com/uploads/1/3/2/7/132741149/memusutud_jisazuniwu_faberewod_tirufemaguj.pdf
    • http://files.triciavanoostveen.com/uploads/1/3/1/3/131384229/b127923c2935b.pdf
    • https://cdn.shopify.com/s/files/1/0432/4042/3592/files/caulerpa_racemosa.pdf
    • https://cdn.shopify.com/s/files/1/0429/5104/9370/files/rilefufizu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5696/3479/files/rajujakokosatijaxi.pdf
    • https://cdn.shopify.com/s/files/1/0434/7750/0057/files/kerifejagabevanatir.pdf
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/dedun.pdf
    • https://cdn.shopify.com/s/files/1/0431/3484/5079/files/39785564047.pdf
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/35261303182.pdf
    • https://cdn.shopify.com/s/files/1/0434/8634/7414/files/dowry_prohibition_act_1961.pdf
    • https://cdn.shopify.com/s/files/1/0431/9094/3904/files/juzunozixive.pdf
    • https://cdn.shopify.com/s/files/1/0431/0079/9140/files/49228723124.pdf
    • https://cdn.shopify.com/s/files/1/0435/9405/5843/files/wayne_s_words_fishing_report.pdf
    • https://cdn.shopify.com/s/files/1/0434/5308/7909/files/51281444883.pdf
    • https://cdn.shopify.com/s/files/1/0440/4844/9686/files/manufacturing_business_plan_sample.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_off00006c20.bin
c5a2334f6a2acb9f7b84893612e5632802e330eca382da03268f91ca3020509f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C20 5416 bytes
font_01_sfnt_off00007e80.bin
168a87034e74604cc576070cb1542885fc94fdbf51a8e9159906f9763ae39d0a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E80 10136 bytes