Malicious PDF — malware analysis report

Static analysis result for SHA-256 510aafa9526466e8…

MALICIOUS

PDF

41.9 KB Created: 2020-09-19 09:28:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 04e500552ad26caeb7009fd1a0fa7c71 SHA-1: fb28c940f3fb8f4c5dbce88343c7741ae8a81548 SHA-256: 510aafa9526466e82a5d9ba578d3c29d8928ae4b8cb61d018822094ec27b4a85
150 Risk Score

Malware Insights

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

The PDF contains multiple embedded links to external resources, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/wb?keyword=dr.%20debra%20soh%20bio', which is flagged as a malicious redirector. The presence of a large number of external PDF links suggests a link farm or redirection strategy to obscure the final malicious destination.

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.cc/wb?keyword=dr.%20debra%20soh%20bio
    • http://files.kimsadesign.com/uploads/1/3/1/6/131637850/6102627.pdf
    • http://lifekak.jesuscatmovie.com/uploads/1/3/1/8/131857419/8915380.pdf
    • http://jekeku.studiofitmi.com/uploads/1/3/1/4/131407014/vumasozitu-fimarovuxabelex-zivok.pdf
    • http://rimil.khhsbands.com.au/uploads/1/3/0/9/130969465/8307831.pdf
    • http://files.greater-faith.org/uploads/1/3/1/4/131407148/pabegedogasikame.pdf
    • http://files.chinesemassageinwa.com.au/uploads/1/3/2/6/132683251/d37bfd74c97.pdf
    • http://files.hfhmadison.com/uploads/1/3/1/4/131452836/lororolibuvekoxanon.pdf
    • https://cdn.shopify.com/s/files/1/0483/3502/8375/files/twelfth_night_characters_slideshare.pdf
    • https://cdn.shopify.com/s/files/1/0462/5118/0183/files/angry_birds_2_hack_mod_apk.pdf
    • https://cdn.shopify.com/s/files/1/0434/8136/6693/files/babulukulibodevawag.pdf
    • https://cdn.shopify.com/s/files/1/0429/2683/3823/files/cbse_guide_for_class_10_physics.pdf
    • https://cdn.shopify.com/s/files/1/0433/2562/0374/files/11801190295.pdf
    • https://cdn.shopify.com/s/files/1/0434/3287/0044/files/dozuvedoguzam.pdf
    • https://cdn.shopify.com/s/files/1/0429/5540/7511/files/kizusadadunejuvamav.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_off00006485.bin
9757a718df137417bccfd8f3accca5f1a1d1b11a92b795f90859e8c83ae37fbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6485 5052 bytes
font_01_sfnt_off000075af.bin
0d0236706c675b8839805f4efcae3e7432534def3e7ceba7bceff8925a73981a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75AF 11052 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.