Malicious PDF — malware analysis report

Static analysis result for SHA-256 f10ec77bffe064a5…

MALICIOUS

PDF

32.0 KB Created: 2020-08-22 05:26:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92302f752fba1dddc47e390025f3762d SHA-1: 17917fed3f0b7d1a9dfb76c000df9454e2880fb2 SHA-256: f10ec77bffe064a5c4a84e5750694a98867f62c5fc52d44c7552fcaa7fc4439f
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as 'molar conversion practice answers'. This suggests a phishing or scam attempt to redirect users to malicious content. The PDF also contains a large number of links to other PDFs hosted on Shopify, likely part of an SEO link farm to obscure the malicious redirector. 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=molar+conversion+practice+answers
    • http://niwakuzo.rock-n-water.com/uploads/1/3/1/4/131438044/3036214.pdf
    • http://files.flimatranslations.com/uploads/1/3/1/6/131606262/9864b75a2ec.pdf
    • http://tisojo.ushistoryepalacios.com/uploads/1/3/0/7/130740572/5490997.pdf
    • https://cdn.shopify.com/s/files/1/0431/5018/0503/files/53854585909.pdf
    • https://cdn.shopify.com/s/files/1/0431/5889/6802/files/vitusibazarakagijezaler.pdf
    • https://cdn.shopify.com/s/files/1/0430/9313/1425/files/best_alarm_clock_app.pdf
    • https://cdn.shopify.com/s/files/1/0432/7309/3288/files/60039427512.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xomuburisuxenogiduta.pdf
    • https://cdn.shopify.com/s/files/1/0434/6612/9574/files/jolivolejilogazofakigika.pdf
    • https://cdn.shopify.com/s/files/1/0431/4143/1464/files/95335901831.pdf
    • https://cdn.shopify.com/s/files/1/0440/2852/6742/files/wosebatuberikes.pdf
    • https://cdn.shopify.com/s/files/1/0433/5036/0232/files/tanogofesesupetedil.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/59526866216.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bafewemuwidizisaj.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_off00004370.bin
0512fc5ff177aca65fa468130bee4e1acb8475299cc0187a15b0cda7256be26d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4370 5084 bytes
font_01_sfnt_off000054e5.bin
da61c1b6529ea862a6edf799d0e87c511ac607ad52b20883f69649a9422490d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54E5 8924 bytes

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