Malicious PDF — malware analysis report

Static analysis result for SHA-256 346666e3b3b0175a…

MALICIOUS

PDF

77.3 KB Created: 2020-08-11 04:08:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a67ae477a2a7a598e36a98527735019 SHA-1: d1a7cdedd573708fca672d7abe5c04f521f9fa08 SHA-256: 346666e3b3b0175aa98b9970f15b04ac31bada8060dae869d3d19cb9b2f39965
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL. The document body, though heavily obfuscated, contains the text 'Camilo torres restrepo biografia pdf' and the malicious URL, suggesting a lure to download further content. The primary malicious URL is https://ttraff.com/pify?keyword=camilo+torres+restrepo+biografia+pdf, which is a known malicious redirector.

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=camilo+torres+restrepo+biografia+pdf
    • http://files.m-d.systems/uploads/1/3/0/7/130739232/ketibopesezaxa_nilipopigoreniz.pdf
    • http://ruligifum.momtomomsales.net/uploads/1/3/1/0/131070450/3074304d3.pdf
    • http://files.fairviewparkrec.com/uploads/1/3/1/4/131437139/efd4d909a13.pdf
    • https://cdn.shopify.com/s/files/1/0435/4542/8120/files/lurokogunivarovexowijum.pdf
    • https://cdn.shopify.com/s/files/1/0430/0718/0954/files/duzavekilut.pdf
    • https://cdn.shopify.com/s/files/1/0429/7555/9829/files/2002_suzuki_xl7_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/1991/0811/files/86397238282.pdf
    • https://cdn.shopify.com/s/files/1/0428/7217/6796/files/13396668954.pdf
    • https://cdn.shopify.com/s/files/1/0439/1770/5371/files/cite_mla.pdf
    • https://cdn.shopify.com/s/files/1/0436/2698/7680/files/luzubewamuzedebike.pdf
    • https://cdn.shopify.com/s/files/1/0433/8499/5991/files/wovetifemibed.pdf
    • https://cdn.shopify.com/s/files/1/0431/0145/4500/files/mudiximigunelanivox.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57727452667.pdf
    • https://cdn.shopify.com/s/files/1/0429/8516/0857/files/51602271053.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_off0000dc84.bin
ecdf472cbe3839f8f5edaaefeaf91f2a71956c54206226b75384a6454bb13988		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDC84 5404 bytes
font_01_sfnt_off0000eec7.bin
a86575f0bf10019cd71ec127dfd76b909acdb13682845162f0610abe17c277d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEEC7 10668 bytes
font_02_sfnt_off00011366.bin
c9557d91917e40dbb2ce09b7ef560a04a9a832ffe2ebcac6b50408a58351272e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11366 16092 bytes

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