Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e3eb1d284de4077…

MALICIOUS

PDF

48.7 KB Created: 2020-08-15 14:40:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a6f52b0fdee18c31787ac2640ba90f0 SHA-1: 894b99cdea24a6c953e22c0121a2c5934792218a SHA-256: 1e3eb1d284de4077529bd16239ef1232a6f8417fe28798ae7716f21f3215e263
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=renaissance+age+in+english+literature+pdf'. It also exhibits characteristics of a PDF link farm, with numerous embedded URLs, many of which are hosted on Shopify but some point to unknown domains. The document body, though heavily obfuscated, contains references to the redirector URL, suggesting the primary intent is to redirect the user to malicious infrastructure.

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=renaissance+age+in+english+literature+pdf
    • http://nujori.laptcycling.com/uploads/1/3/2/6/132681409/2785256.pdf
    • http://gokinuxom.lonepinelogandtimber.com/uploads/1/3/1/1/131164250/563951.pdf
    • http://vunow.launidadlatina.net/uploads/1/3/2/6/132696414/222aeaee4426e5e.pdf
    • http://files.historicwashingtonheightscharlotte.org/uploads/1/3/0/7/130739247/2d3866e255e9.pdf
    • http://files.randomthoughtsanddailyblessings.com/uploads/1/3/1/4/131454317/1730eb3.pdf
    • https://cdn.shopify.com/s/files/1/0438/3634/2434/files/61267910180.pdf
    • https://cdn.shopify.com/s/files/1/0431/5391/6053/files/1179283890.pdf
    • https://cdn.shopify.com/s/files/1/0428/2135/3635/files/64990127800.pdf
    • https://cdn.shopify.com/s/files/1/0432/3547/5624/files/64344518755.pdf
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/bereket_enerji_yataan_i_bavuru_formu.pdf
    • https://cdn.shopify.com/s/files/1/0440/1243/7662/files/amma_amma_enthan_aaruyire_female_song.pdf
    • https://cdn.shopify.com/s/files/1/0430/9578/5621/files/bodezibinamamera.pdf
    • https://cdn.shopify.com/s/files/1/0430/6488/5397/files/17252518423.pdf
    • https://cdn.shopify.com/s/files/1/0433/5868/3294/files/85753176320.pdf
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/ronomujoluvijiniwewil.pdf
    • https://cdn.shopify.com/s/files/1/0432/0365/7887/files/28348709117.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_off00007518.bin
4adeae0b564aefb38529d7b70625cc0d686a7cea7bc11166238561f19881d275		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7518 5424 bytes
font_01_sfnt_off00008785.bin
ed7307cbca608db0f1d3a657f09f439b34aa7e22221f51982e689d9479aaa484		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8785 14760 bytes

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