Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2b9265405fbd3eb…

MALICIOUS

PDF

51.8 KB Created: 2020-09-17 07:46:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ae794d7524cd4bb59ac5883800c3cf8 SHA-1: 263e1a0c5824f94ea012251c37bc413797b68927 SHA-256: e2b9265405fbd3ebe0cd629fa1f00bf76487c4488d73158fd87190c85425c88c
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the same malicious URL. This suggests a phishing attempt using a lure of educational material to redirect users to a malicious 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.club/wix?keyword=practice+codominance+and+incomplete+dominance+worksheet+answer+key
    • http://duduvetus.newenglandgirlsnpl.com/uploads/1/3/1/4/131410227/joxetexovavobuniza.pdf
    • https://cdn.shopify.com/s/files/1/0432/1227/5871/files/mofabapi.pdf
    • https://cdn.shopify.com/s/files/1/0433/2696/3865/files/catalogo_moldes_cadweld_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0465/1519/1958/files/2000_mitsubishi_montero_sport_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0436/5382/4677/files/robidof.pdf
    • https://cdn.shopify.com/s/files/1/0429/0140/5852/files/discord_share_screen_no_sound.pdf
    • https://cdn.shopify.com/s/files/1/0433/0756/5214/files/pdf_splitter_portable.pdf
    • https://cdn.shopify.com/s/files/1/0462/7342/9661/files/on_chesil_beach.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/libidurekatomanazavevufi.pdf
    • https://cdn.shopify.com/s/files/1/0431/9769/4114/files/comparable_market_analysis_template.pdf
    • https://cdn.shopify.com/s/files/1/0434/5007/3240/files/jogesurifutepi.pdf
    • https://cdn.shopify.com/s/files/1/0436/9262/1978/files/insert_javascript_into_html.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_off00007cf7.bin
0e5dcc4d33d01ad5999ce8d1560b7f8b377e04f44a395e265b8fffdca86884a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF7 5360 bytes
font_01_sfnt_off00008f05.bin
8c1ebf4c0e371d8e19c4a0c4e56d74330c572e056fe3249fe432fbb4b56c9b69		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F05 10812 bytes
font_02_sfnt_off0000b3c3.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB3C3 4324 bytes

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