Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cbaac62f75dba29…

MALICIOUS

PDF

42.4 KB Created: 2020-08-14 22:54:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60db67aca1f63f20d8c1a64965212764 SHA-1: 790438f2d8e1bb3aff331758f44c87ebb52f0715 SHA-256: 3cbaac62f75dba297ee0c7dfb2c2a7ecda5c35c15d5d9849ee5b686495551f1e
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.ru, which is disguised as a 'Runescape 3 druidic ritual quest guide'. The PDF also functions as a link farm, with numerous embedded links pointing to shopify.com domains, likely for SEO manipulation or to host further malicious content. The presence of a malicious redirector suggests an attempt to lead the user to a phishing or malware distribution site.

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.ru/pify?keyword=runescape+3+druidic+ritual+quest+guide
    • http://files.carrollcountygovernment.org/uploads/1/3/1/4/131453598/1cf7727a8f2eade.pdf
    • http://files.english4apachs.org/uploads/1/3/1/4/131452958/simosenekitegal.pdf
    • http://files.godcarescharities.org/uploads/1/3/1/3/131384429/1919826.pdf
    • http://files.garnersoftware.com/uploads/1/3/1/4/131453206/7580303.pdf
    • https://cdn.shopify.com/s/files/1/0437/9898/6909/files/zubuxoxopekosebulamadiwa.pdf
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/nunegabev.pdf
    • https://cdn.shopify.com/s/files/1/0429/3863/0300/files/72999560576.pdf
    • https://cdn.shopify.com/s/files/1/0434/4361/7958/files/ielts_speaking_part_1_tips.pdf
    • https://cdn.shopify.com/s/files/1/0434/6403/2421/files/lexamerome.pdf
    • https://cdn.shopify.com/s/files/1/0432/7342/0965/files/88995170341.pdf
    • https://cdn.shopify.com/s/files/1/0431/2816/0420/files/turisupapotafezugozuwiru.pdf
    • https://cdn.shopify.com/s/files/1/0434/4076/7132/files/atoms_molecules_and_ions_notes.pdf
    • https://cdn.shopify.com/s/files/1/0441/0490/8952/files/71525445882.pdf
    • https://cdn.shopify.com/s/files/1/0431/0840/1316/files/61060319955.pdf
    • https://cdn.shopify.com/s/files/1/0431/3153/5509/files/notaxofonumagepojob.pdf
    • https://cdn.shopify.com/s/files/1/0432/5530/0249/files/wasosezujowodododi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8168/6439/files/88662476552.pdf
    • https://cdn.shopify.com/s/files/1/0440/5949/2502/files/hess_s_law_worksheet_answer.pdf
    • https://cdn.shopify.com/s/files/1/0430/2703/8359/files/10913106023.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_off000066d4.bin
6a965bb3cf994edb91ab7f855e20e728e335b6c38712ace4c1a8315cf1712ee0
pdf-font-stream PDF embedded font (sfnt) at offset 0x66D4 5540 bytes
font_01_sfnt_off000079aa.bin
46c002e6e505bccdbee24513f8866be0baf0cfdcd142fb6f01944e91e69b12e9
pdf-font-stream PDF embedded font (sfnt) at offset 0x79AA 10124 bytes