Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c5b688360f758df…

MALICIOUS

PDF

44.4 KB Created: 2020-08-14 02:56:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92b77044b790043a2d50c2863de27473 SHA-1: 486aea3e1c62090e812475f328088a37b0b5488b SHA-256: 4c5b688360f758df8c714b73f998628ee7fccf740bb6fa1b382ade8044d0b0c1
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=facebook++for+nokia+e63+symbian', which is flagged as malicious. This suggests a social engineering lure to drive traffic 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=facebook++for+nokia+e63+symbian
    • http://files.kcrollerwarriors.com/uploads/1/3/0/7/130775350/valatilitu-regazod-dipotijoximo-kudotutipega.pdf
    • http://files.hernanbrizuelatango.com/uploads/1/3/2/7/132740743/8798325.pdf
    • http://sejux.coastalretreatsdevon.com/uploads/1/3/0/7/130775934/aa66f.pdf
    • https://cdn.shopify.com/s/files/1/0435/8311/1323/files/kekepuwojaduledude.pdf
    • https://cdn.shopify.com/s/files/1/0441/4432/8856/files/64435797662.pdf
    • https://cdn.shopify.com/s/files/1/0431/5742/2240/files/notepujowapowezuvusapiv.pdf
    • https://cdn.shopify.com/s/files/1/0432/6588/4323/files/xixetumiwikezokoxum.pdf
    • https://cdn.shopify.com/s/files/1/0437/0661/3912/files/67061747347.pdf
    • https://cdn.shopify.com/s/files/1/0429/3502/5830/files/cetoconazol_bula.pdf
    • https://cdn.shopify.com/s/files/1/0435/3179/6632/files/72513381819.pdf
    • https://cdn.shopify.com/s/files/1/0432/6939/0500/files/34199370064.pdf
    • https://cdn.shopify.com/s/files/1/0428/4484/8295/files/tetosibogekixakone.pdf
    • https://cdn.shopify.com/s/files/1/0438/2208/8354/files/andhra_pradesh_district_map.pdf
    • https://cdn.shopify.com/s/files/1/0428/8849/5270/files/buwulutesirinubixojoba.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/1/0438/2208/8354/files/andhra_pradesh_

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006137.bin
7418802616721bf9ce03250e870d98a7330e99bb4dc1f1ec1d889c670d5caffb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6137 5284 bytes
font_01_sfnt_off00007312.bin
0e485e898d5768233cf304a981bec838bf5e323259bce4380b5f8f58976b2186		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7312 10308 bytes
font_02_sfnt_off00009654.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9654 4324 bytes

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