Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcc2b05e3b15b977…

MALICIOUS

PDF

53.8 KB Created: 2020-08-21 23:13:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bd8da30db42cb43eba0c19dc80332770 SHA-1: 69d62b6f8b69c75a0bafc3462471d743ce47ddc9 SHA-256: dcc2b05e3b15b977194e50a5678a9914907ad1d457d0475da705bf9534cd8260
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or redirection attempt. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=ardhanareeswara+stotram+in+telugu'. The document body, though partially corrupted, contains this same URL, reinforcing the malicious intent. The presence of numerous Shopify-hosted PDF links likely serves to obscure the malicious redirector by appearing as legitimate content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=ardhanareeswara+stotram+in+telugu
    • http://dinoxoz.odjrl.com/uploads/1/3/0/7/130739344/xiwezozeturoj-tesunewogij.pdf
    • http://loxabaku.kmoranart.com/uploads/1/3/0/7/130775883/pezesevu.pdf
    • http://dewogawa.autisticadults.org/uploads/1/3/2/6/132682883/7148592.pdf
    • https://cdn.shopify.com/s/files/1/0430/3070/8385/files/52801351462.pdf
    • https://cdn.shopify.com/s/files/1/0431/6535/2095/files/customer_satisfaction_project_report.pdf
    • https://cdn.shopify.com/s/files/1/0431/4241/4487/files/marvin_casement_window_sizes.pdf
    • https://cdn.shopify.com/s/files/1/0435/4460/8932/files/30413685329.pdf
    • https://cdn.shopify.com/s/files/1/0437/8070/2366/files/80392071974.pdf
    • https://cdn.shopify.com/s/files/1/0428/0696/8483/files/26464311639.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mirogorozizodixomalejog.pdf
    • https://cdn.shopify.com/s/files/1/0429/0176/6310/files/23878544115.pdf
    • https://cdn.shopify.com/s/files/1/0430/6193/6285/files/1928394850.pdf
    • https://cdn.shopify.com/s/files/1/0428/9599/9129/files/xajakibika.pdf
    • https://cdn.shopify.com/s/files/1/0433/3341/9160/files/fijusefofejunag.pdf
    • https://cdn.shopify.com/s/files/1/0436/0182/1859/files/canon_printer_driver_2900.pdf
    • https://cdn.shopify.com/s/files/1/0433/8876/4316/files/jug_fetty_wap_mp3_download.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_off00007208.bin
9d66b0af356a665126e92b820095a0d3daa139fd75da40d55550a77522ef826e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7208 5320 bytes
font_01_sfnt_off000083fa.bin
8f419bf2eb894613190cc24438a5f173f1fa6cd87e0ed1ac3fe6890ea27719a0
pdf-font-stream PDF embedded font (sfnt) at offset 0x83FA 7928 bytes
font_02_sfnt_off00009c14.bin
dcdcb0e979fab697c6b0029df74ebbc2efed9675522a47a2844afaf8a63945dc
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C14 14268 bytes