Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fb64bee6a792f84…

MALICIOUS

PDF

47.2 KB Created: 2020-08-10 05:04:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5afa3d9bf1f8295962ca77e600940eee SHA-1: c6c8da64b1e1111afc29b61b83880b5d2e9e87c5 SHA-256: 1fb64bee6a792f8415610a36a4d4ceb0f546cc66c6e6462051973b38caf08959
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL for the redirector. This indicates a phishing attempt designed to lead 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.cc/pify?keyword=brute+force+algorithm+pdf
    • http://files.stephaniesmithshowdogleads.com/uploads/1/3/1/3/131380297/564453.pdf
    • http://files.kamarisoul.com/uploads/1/3/2/6/132681452/tunefenas-razagowujugitug-dugoguliboxa-rofefikegalemug.pdf
    • http://files.karoobirdingsafaris.com/uploads/1/3/2/7/132740277/bukis_tunivovumeja_lasazo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6644/1376/files/bexujonom.pdf
    • https://cdn.shopify.com/s/files/1/0431/4349/5842/files/trilogia_bella_y_bestia.pdf
    • https://cdn.shopify.com/s/files/1/0431/6705/6023/files/47610047671.pdf
    • https://cdn.shopify.com/s/files/1/0435/4670/6088/files/81175411155.pdf
    • https://cdn.shopify.com/s/files/1/0432/2911/8627/files/lalazikepavewopoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/88286527190.pdf
    • https://cdn.shopify.com/s/files/1/0434/3152/6561/files/gufinorexipupotapanojodo.pdf
    • https://cdn.shopify.com/s/files/1/0440/6145/8582/files/8052263360.pdf
    • https://cdn.shopify.com/s/files/1/0434/0318/2231/files/zulavaxaronemamovuxam.pdf
    • https://cdn.shopify.com/s/files/1/0433/8624/1187/files/como_encontrar_el_sentido_de_la_vida.pdf
    • https://cdn.shopify.com/s/files/1/0437/2001/6021/files/bejedelex.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xakuxosisubesabemobaf.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_off00006cb8.bin
9f037ca6fdb1681b6dacb29ff94888f3b937071b29d0f2c20d4dbdb11962fe5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CB8 5216 bytes
font_01_sfnt_off00007e78.bin
129e3b78f73488939560bbfcbfb74f8e667bc3a1e164dc6ae56ac6a051b25319		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E78 10344 bytes
font_02_sfnt_off0000a1e7.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA1E7 4324 bytes

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