Malicious PDF — malware analysis report

Static analysis result for SHA-256 aedaaad9b22570ae…

MALICIOUS

PDF

42.2 KB Created: 2020-08-06 10:31:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5361c848c20280cf14f86620a9684153 SHA-1: 87a9d08b3191c0a7241a6dd15c43d5d690ab2777 SHA-256: aedaaad9b22570ae9d0d566373dc84b40a001282b86bae2211603de09930f87d
120 Risk Score

Malware Insights

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

The PDF contains numerous links, with a critical heuristic firing for a malicious redirector. The primary link directs to 'ttraff.com', a known malicious redirector. The document body, though heavily obfuscated, contains the same URL, suggesting the document's purpose is to trick the user into visiting this malicious link. The presence of many Shopify links suggests a link farm for SEO poisoning.

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=concept+of+spatial+frequency+filtering+pdf
    • http://files.ptbomassage.com/uploads/1/3/0/7/130776519/wadofuvifivo.pdf
    • http://files.theshootinghand.com/uploads/1/3/1/4/131407057/59eeadb08e.pdf
    • http://files.habitatriwestbay.org/uploads/1/3/1/4/131407088/mopor.pdf
    • http://files.slowiksstudio.com/uploads/1/3/0/7/130775199/sixukafe.pdf
    • https://cdn.shopify.com/s/files/1/0432/5788/8936/files/auto_button_clicker.pdf
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/jukewotesavatijabazavano.pdf
    • https://cdn.shopify.com/s/files/1/0427/8226/1415/files/zekejopijufolosikipox.pdf
    • https://cdn.shopify.com/s/files/1/0433/3341/9160/files/35094993805.pdf
    • https://cdn.shopify.com/s/files/1/0434/3437/7377/files/xitezuzununujed.pdf
    • https://cdn.shopify.com/s/files/1/0437/4380/5594/files/16356705617.pdf
    • https://cdn.shopify.com/s/files/1/0437/5045/7505/files/tajozagamexofalidas.pdf
    • https://cdn.shopify.com/s/files/1/0434/3595/0236/files/49886603674.pdf
    • https://cdn.shopify.com/s/files/1/0428/9472/1187/files/97194545025.pdf
    • https://cdn.shopify.com/s/files/1/0438/4607/4525/files/export_google_music_playlist.pdf
    • https://cdn.shopify.com/s/files/1/0431/0692/6741/files/61641525893.pdf
    • https://cdn.shopify.com/s/files/1/0431/6558/1469/files/zotuvetolu.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_off000065e4.bin
2c11e526086a921f3bf58c22c6968417d48d2a0c76cedd58da7cdf90eac5b630		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65E4 5456 bytes
font_01_sfnt_off00007885.bin
a468e852063fe01720bd46aeb4575c5e7772ce5cec9f8dd1c8ca3fcabb187d16		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7885 10224 bytes

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