Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9d4436d320aa37e…

MALICIOUS

PDF

42.0 KB Created: 2020-08-08 19:49:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d2ada51f0ed75538a9db5ba401a646db SHA-1: 122fead747d1c408839cc8fe47219c286bcb1950 SHA-256: b9d4436d320aa37e89600c6bb53ea1828b1adee97891d52d23fb45666a47be69
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a lure related to 'Taittiriya brahmana telugu pdf' and embeds numerous links, many of which point to suspicious or unknown domains. One critical heuristic indicates a malicious redirector link to 'https://ttraff.cc/pify?keyword=taittiriya+brahmana+telugu+pdf', suggesting the document is designed to redirect users to malicious content. The presence of a payment redirection lure further supports a phishing or business compromise attack pattern.

Heuristics 5

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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.cc/pify?keyword=taittiriya+brahmana+telugu+pdf
    • http://files.tahoportfolio.com/uploads/1/3/0/7/130739028/wuwusebadesi-wuvijedejoju.pdf
    • http://dekuxunu.aikendrivingclub.com/uploads/1/3/1/6/131606289/2465c0bf2.pdf
    • http://files.centralfloridadressage.com/uploads/1/3/1/6/131606150/9584205.pdf
    • http://files.classictrimming.net/uploads/1/3/0/7/130775172/bfb937fd.pdf
    • http://files.brownsistabasics.com/uploads/1/3/1/6/131606343/fikewepeteludilor.pdf
    • https://cdn.shopify.com/s/files/1/0428/2341/8019/files/takusurif.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rirolor.pdf
    • https://cdn.shopify.com/s/files/1/0430/1098/2041/files/how_to_dump_3ds_roms.pdf
    • https://cdn.shopify.com/s/files/1/0429/2716/1507/files/38825487307.pdf
    • https://cdn.shopify.com/s/files/1/0434/4178/2946/files/devuxadutaxezig.pdf
    • https://cdn.shopify.com/s/files/1/0429/9898/8954/files/57078850691.pdf
    • https://cdn.shopify.com/s/files/1/0434/5652/8541/files/agreement_and_disagreement_expressions_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0431/3192/8740/files/jawezoser.pdf
    • https://cdn.shopify.com/s/files/1/0428/7594/5113/files/blank_swot_analysis_template.pdf
    • https://cdn.shopify.com/s/files/1/0437/1510/0826/files/92130708357.pdf
    • https://cdn.shopify.com/s/files/1/0439/2851/8824/files/sm_bus_controller_driver.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_off00006545.bin
a8d5f05f14cfece26561e6b8aefd6041d5a87f05252e608d4a8fdb5ffd6abf00
pdf-font-stream PDF embedded font (sfnt) at offset 0x6545 5468 bytes
font_01_sfnt_off000077bd.bin
840be914d1b2f6459264cdf9d4a51346e0e593faed460d7d2b8bfdfe9b6bb885
pdf-font-stream PDF embedded font (sfnt) at offset 0x77BD 10340 bytes