Malicious PDF — malware analysis report

Static analysis result for SHA-256 97b01140d347a5fd…

MALICIOUS

PDF

40.4 KB Created: 2020-08-28 03:16:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9015b72aa793a3f79b5ca562be8cd456 SHA-1: 2cb2dcbd1d4ff7f7ff9713dc067b7190bff93d2c SHA-256: 97b01140d347a5fdff048c2001f331b133c2cb8630111607f8ce8ae6c0d8b1ab
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Cardio circuit training exercises pdf' and includes the malicious URL. The presence of numerous external PDF links, many pointing to potentially compromised or attacker-controlled domains, suggests a link farm or redirection scheme designed to lead users to malicious content. No scripts were extracted, limiting the analysis of direct payload execution.

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=cardio+circuit+training+exercises+pdf
    • http://puzetosem.cmgaesthetics.com/uploads/1/3/0/8/130813747/tunubaw-tesaw-zojef-gizeri.pdf
    • http://files.centelmedia.us/uploads/1/3/2/7/132740692/8a927a.pdf
    • http://files.mohamedlahna.com/uploads/1/3/1/1/131164157/76d21d4124.pdf
    • http://zovat.granitefallsprcarodeo.org/uploads/1/3/1/3/131379246/vusoduzegonelir.pdf
    • https://cdn.shopify.com/s/files/1/0432/9511/3374/files/13913352819.pdf
    • https://cdn.shopify.com/s/files/1/0465/1712/5270/files/bhagwan_ji_ki_photo_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/4416/7064/files/biografia_de_baldomero_lillo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/ligumugazawebamupewav.pdf
    • https://cdn.shopify.com/s/files/1/0433/8181/7505/files/vanopevivijokubevif.pdf
    • https://cdn.shopify.com/s/files/1/0433/1618/3205/files/watufajasolizugezo.pdf
    • https://cdn.shopify.com/s/files/1/0434/5351/3880/files/41525596846.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_off00005f0e.bin
5d61533ff1ae75067360d3198748d6f0d92a97e3f5ec08728f2cdb267e285f1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F0E 5264 bytes
font_01_sfnt_off0000710f.bin
8aa4e2715d63506da761ce636291714b18feea04e477664e7413c0c294387376		 pdf-font-stream PDF embedded font (sfnt) at offset 0x710F 10488 bytes

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