Malicious PDF — malware analysis report

Static analysis result for SHA-256 4eb35afa982cbb97…

MALICIOUS

PDF

43.9 KB Created: 2020-07-30 07:33:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a70980f3007558fc7fde6e17e41832a SHA-1: 6cbdee63ae744bc0c4dc92843bd0ba73f0e6500e SHA-256: 4eb35afa982cbb97a2f50f2aae7627a4f67a95e819c630ded011b69de1f875c8
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding numerous external links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK. One of the primary URLs, 'https://ttraff.cc/pify?keyword=anlauttabelle+zebra+pdf', is flagged as a malicious redirector. The document body appears to be largely obfuscated or corrupted, preventing a deeper analysis of its specific content or intent beyond the link manipulation.

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=anlauttabelle+zebra+pdf
    • http://files.raphaelacademy.org/uploads/1/3/2/7/132710628/709e0.pdf
    • http://files.spotlightcoachingdc.com/uploads/1/3/2/7/132740917/vodumafusewa.pdf
    • http://files.freeurnsforveterans.org/uploads/1/3/0/8/130874510/taruro.pdf
    • https://cdn.shopify.com/s/files/1/0431/8937/1029/files/nijemukivorudekefakif.pdf
    • https://cdn.shopify.com/s/files/1/0432/0821/2638/files/relisiwobamobitatasewuxo.pdf
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/63833691042.pdf
    • https://cdn.shopify.com/s/files/1/0438/7618/8315/files/lofalovuwefujonaluzazij.pdf
    • https://cdn.shopify.com/s/files/1/0437/5288/2330/files/86133124788.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xoxolesusoziviro.pdf
    • https://cdn.shopify.com/s/files/1/0430/4617/4877/files/wuxapemap.pdf
    • https://cdn.shopify.com/s/files/1/0430/7048/8730/files/diwapireke.pdf
    • https://cdn.shopify.com/s/files/1/0437/3594/1274/files/1414374215.pdf
    • https://cdn.shopify.com/s/files/1/0431/7164/3554/files/jubinirajatid.pdf
    • https://cdn.shopify.com/s/files/1/0429/0838/5439/files/83379142741.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/
    • https://cdn.shopify.com/s/files/1/0437/5288/2330/files/86133124788.p

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f33.bin
7ed278bd921c5f56cf5e6304ef44978566318f3767d5a52ddaddafcd819eee8c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F33 4760 bytes
font_01_sfnt_off00007f67.bin
dfdd343ef3281beadd780efeec738198ff59d608490613f62833618bf0a81f9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F67 10600 bytes

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