Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7ba430f7154e94d…

MALICIOUS

PDF

47.2 KB Created: 2020-08-04 06:53:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3fd2369ad06fcfb1a3d0f53cddb847bf SHA-1: 3eadb106435b9111a55ea4d002c42d2edc015ece SHA-256: c7ba430f7154e94de8673d3ac2f1751107875153130b9991d56fbea08b3fda8f
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links to external PDFs, many hosted on Shopify. The document body, though heavily obfuscated, contains the same URL found in the redirector, suggesting a lure to a malicious site. 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.com/pify?keyword=the+sociopath+next+door+book+pdf
    • http://files.desireecrossman.net/uploads/1/3/1/3/131384573/1520528f117596.pdf
    • http://files.internationalrunwayawards.com/uploads/1/3/1/1/131164168/toredi_kilavolixobepi_vimiwepasunijik_wajefalup.pdf
    • http://files.novafairytales.com/uploads/1/3/1/6/131637325/zesafunofabun_duzexedate.pdf
    • http://files.arch-enroute.com/uploads/1/3/0/8/130874575/b29b6b2e57.pdf
    • http://files.ohiobiplanes.com/uploads/1/3/1/8/131872149/jarenuzaxisixo-lilobuge-sixinonewidi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5666/8573/files/18601825041.pdf
    • https://cdn.shopify.com/s/files/1/0430/1645/4305/files/33035926186.pdf
    • https://cdn.shopify.com/s/files/1/0431/1918/1978/files/fuvegusa.pdf
    • https://cdn.shopify.com/s/files/1/0434/7301/0840/files/zesukusosomixevudorij.pdf
    • https://cdn.shopify.com/s/files/1/0428/1345/6550/files/30571036855.pdf
    • https://cdn.shopify.com/s/files/1/0434/6806/2872/files/29678946117.pdf
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/2004345293.pdf
    • https://cdn.shopify.com/s/files/1/0433/4986/8712/files/famil_guy_season_6.pdf
    • https://cdn.shopify.com/s/files/1/0433/0350/1989/files/68367723155.pdf
    • https://cdn.shopify.com/s/files/1/0430/3847/4397/files/podezasokeruva.pdf
    • https://cdn.shopify.com/s/files/1/0430/9712/9109/files/faroviwugulusuridixa.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_off00007ad6.bin
eea1e0553ed5ceb97d5183a461c686cdef7ef28a8ca4c004abd68681e75beadf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD6 5432 bytes
font_01_sfnt_off00008d4a.bin
595453f0e88e70e6b7fce4c7d844d7dbcd9cc2fa3e3cba943edbecb9a1169f99		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D4A 10216 bytes

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