Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0859b96e9028ca6…

MALICIOUS

PDF

42.3 KB Created: 2020-08-07 08:59:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63e38902d0961b88dcf20adadf9cbdf4 SHA-1: 5bfc15cd4819270da9e512c70478a513a550d6a4 SHA-256: e0859b96e9028ca6e91bf778e926878e426fe814b5378e4f373a0a48b94d5d12
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=thing+around+your+neck+pdf'. This suggests the document is designed to lure users to malicious sites, likely for phishing or malware distribution. 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=thing+around+your+neck+pdf
    • http://pusal.frecuenciarockradio.com/uploads/1/3/0/7/130739024/2cb74.pdf
    • http://files.lcassociation.org/uploads/1/3/1/4/131454850/wudoso.pdf
    • http://fitexaxi.marcellfelipe.com/uploads/1/3/1/4/131409090/devovotereze_woforis_detisiwo_mimubej.pdf
    • http://files.remedytattooparlor.com/uploads/1/3/0/7/130738876/zodosejodu.pdf
    • http://files.marketmovesmatt.com/uploads/1/3/0/8/130874629/nuvigure-bufagejiv.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12339474235.pdf
    • https://cdn.shopify.com/s/files/1/0428/3046/3142/files/samezu.pdf
    • https://cdn.shopify.com/s/files/1/0430/3909/6986/files/15719776456.pdf
    • https://cdn.shopify.com/s/files/1/0433/8361/9738/files/71944177651.pdf
    • https://cdn.shopify.com/s/files/1/0446/0707/8564/files/honda_nighthawk_450.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gamawogedeveredu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8317/7885/files/nukijijovipuzujuwesevop.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/musigusuwekun.pdf
    • https://cdn.shopify.com/s/files/1/0428/3482/1287/files/22080431236.pdf
    • https://cdn.shopify.com/s/files/1/0432/7941/7504/files/jepezisi.pdf
    • https://cdn.shopify.com/s/files/1/0435/8494/6333/files/vatobegesojejubitiguka.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_off0000689e.bin
17deb73698770d40404aab03a57acebe18186cf4d6fa6d481c018548a02cf6ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x689E 5324 bytes
font_01_sfnt_off00007ac4.bin
4d9d48d628194eadfd209469767342ea677a8aa8f69f080b86d03793d12944e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AC4 9768 bytes

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