Malicious PDF — malware analysis report

Static analysis result for SHA-256 47ee86750f7f5224…

MALICIOUS

PDF

66.3 KB Created: 2020-07-25 22:03:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58476b81006017267548623df8fedf3c SHA-1: 5b4d5afe5c5f7416c82da2cc8219393525a94738 SHA-256: 47ee86750f7f52245301441afeadbec3327c85f3715b6dea92a28401e4740c45
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, identified as a PDF link farm, with a critical heuristic firing for a malicious redirector. The primary malicious URL, 'https://ttraff.com/pify?keyword=microstructure+of+carbon+steel+lab+report', is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, suggests a lure related to a 'microstructure of carbon steel lab report'.

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=microstructure+of+carbon+steel+lab+report
    • http://files.rothparkfamilycamping.com/uploads/1/3/2/7/132740498/neposugedalaze.pdf
    • http://files.sovereignfoodie.com/uploads/1/3/1/4/131406826/dazilo.pdf
    • http://files.presscoffee2go.com/uploads/1/3/1/4/131438155/588ce47.pdf
    • http://files.artbysarabardin.com/uploads/1/3/0/9/130969748/bazisama.pdf
    • http://files.artbysarabardin.com/uploads/1/3
    • https://cdn.shopify.com/s/files/1/0435/5335/7985/files/ruxusato.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/tipukikubuwobepibozalu.pdf
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/sebojibijupele.pdf
    • https://cdn.shopify.com/s/files/1/0432/6863/6840/files/mulujokavunamubumuke.pdf
    • https://cdn.shopify.com/s/files/1/0432/7066/8453/files/82307782721.pdf
    • https://cdn.shopify.com/s/files/1/0432/5025/3992/files/7716054187.pdf
    • https://cdn.shopify.com/s/files/1/0431/6508/9949/files/13631733414.pdf
    • https://cdn.shopify.com/s/files/1/0428/4969/7959/files/waxapezeromigemowuwuxup.pdf
    • https://cdn.shopify.com/s/files/1/0432/4805/8536/files/bebakib.pdf
    • https://cdn.shopify.com/s/files/1/0431/9127/1586/files/pewudifagewejiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/3329/7058/files/62491929455.pdf
    • https://cdn.shopify.com/s/files/1/0431/8799/4792/files/76249173886.pdf
    • https://cdn.shopify.com/s/files/1/0431/0928/6050/files/5140441332.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_off0000c01a.bin
63d96b72ddff7eb79ee72c94cb890d8a9f2a90e7ef8636034b35c206ccc37f8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC01A 5036 bytes
font_01_sfnt_off0000d142.bin
afc53b46d851e38ac12cba0b1c62dd1dfd06c77d250378b12790b16d50f68778		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD142 13156 bytes

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