Malicious PDF — malware analysis report

Static analysis result for SHA-256 841f2718e47f0fba…

MALICIOUS

PDF

45.8 KB Created: 2020-08-10 12:52:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7701fe15e0b9e8bf17982f62f55e3e90 SHA-1: 174db33bea30f35e0a465c687f2aeed15b261af4 SHA-256: 841f2718e47f0fba99320669a4c3f23e10baf9fb50eb7dbe73e4995280fc6350
120 Risk Score

Malware Insights

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

The PDF document contains numerous links, many pointing to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is likely the primary malicious objective. The document body, though heavily obfuscated, contains the same lure text and URLs, reinforcing the redirection attempt. 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=bhagavad+gita+quotes+kannada+pdf
    • http://files.mirrorimageintl.com/uploads/1/3/0/9/130969218/b218340b9b.pdf
    • http://rudur.apollovacations.com/uploads/1/3/0/8/130874493/3d68e2.pdf
    • http://files.pastandpresentmedia.net/uploads/1/3/1/4/131454620/2681876.pdf
    • https://cdn.shopify.com/s/files/1/0432/0133/1360/files/nepuwoxozeriwi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5450/5882/files/5717637249.pdf
    • https://cdn.shopify.com/s/files/1/0432/7142/2115/files/proyecto_de_piscicultura_en_bolivia.pdf
    • https://cdn.shopify.com/s/files/1/0432/9200/0422/files/lonul.pdf
    • https://cdn.shopify.com/s/files/1/0433/1582/2747/files/election_card_form_6_in_gujarati.pdf
    • https://cdn.shopify.com/s/files/1/0427/9386/1279/files/velizuwisovibufigof.pdf
    • https://cdn.shopify.com/s/files/1/0432/7460/0598/files/mosufasedemilub.pdf
    • https://cdn.shopify.com/s/files/1/0432/8049/8852/files/aprendizaje_visual_auditivo_y_kinestesico.pdf
    • https://cdn.shopify.com/s/files/1/0430/6645/8265/files/factoring_quadratic_expressions_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0437/8283/2289/files/8311046746.pdf
    • https://cdn.shopify.com/s/files/1/0427/9776/0668/files/4729434684.pdf
    • https://cdn.shopify.com/s/files/1/0449/9632/9636/files/sobre_o_behaviorismo_skinner.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ed9.bin
4947493ac1d4f0f015029ee60863d76187ca62d6e24cf78543aa55095b29c46c
pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED9 5476 bytes
font_01_sfnt_off00007185.bin
44d55d4dc370fd063bb84bc6fe434b46936e7ea47c2ccb8d34ba5f0e505b08d6
pdf-font-stream PDF embedded font (sfnt) at offset 0x7185 6200 bytes
font_02_sfnt_off000084f7.bin
836d8a86ca1b8f4ed4a94dd779caad1cd308c4d3d0d01767aa05a6d743ab3165
pdf-font-stream PDF embedded font (sfnt) at offset 0x84F7 10308 bytes