Malicious PDF — malware analysis report

Static analysis result for SHA-256 c58ca5c87c16fead…

MALICIOUS

PDF

40.2 KB Created: 2020-08-06 19:17:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3eb198e534feed0adb09e3f4add79b5f SHA-1: b3ada9f0465dd5e810a45baa5e709f9776ad57ce SHA-256: c58ca5c87c16feadee62155eb38486771f52de390c027a5377e4fd1ad6b3fe69
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains text related to a project report and includes the malicious redirector URL. This suggests the document is designed to trick the user into visiting the redirector, likely leading to further malicious content.

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.cc/pify?keyword=acknowledgement+for+project+report+in+college+pdf
    • http://files.jrnewsphotography.net/uploads/1/3/0/8/130813314/fepuvafutorilo.pdf
    • http://files.portergenie.com/uploads/1/3/2/6/132682723/3738988.pdf
    • http://files.morningslight.com.au/uploads/1/3/1/1/131164009/viganekemad_sedodipir.pdf
    • https://cdn.shopify.com/s/files/1/0432/2417/0659/files/ars_goetia.pdf
    • https://cdn.shopify.com/s/files/1/0430/4093/1991/files/bogemozusixurebebenin.pdf
    • https://cdn.shopify.com/s/files/1/0435/7177/3601/files/guvunurenolamudiv.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/binawanoxolaluvili.pdf
    • https://cdn.shopify.com/s/files/1/0434/6006/7480/files/47303100112.pdf
    • https://cdn.shopify.com/s/files/1/0434/3676/9447/files/digital_dash_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/8855/9782/files/bihar_si_question_paper_2020.pdf
    • https://cdn.shopify.com/s/files/1/0435/2324/4191/files/nisevezuginaroxunajonad.pdf
    • https://cdn.shopify.com/s/files/1/0431/1928/0288/files/46282013621.pdf
    • https://cdn.shopify.com/s/files/1/0428/5916/7900/files/69767941891.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_off000060a7.bin
a5ad8ed68555df565f6b5b29d048815008238481a8f2d36bb87b0428e8e933a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60A7 5308 bytes
font_01_sfnt_off000072c5.bin
756fb4c9a7762d889d94d621b74d37866256d6c417700abc7e5314ae22791044		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72C5 9944 bytes

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