Malicious PDF — malware analysis report

Static analysis result for SHA-256 f092ae3d74df1bf3…

MALICIOUS

PDF

42.8 KB Created: 2020-08-31 07:32:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 801efb216df65d3e61a705904781613a SHA-1: 8d7a14986ced77889ea5528b8a2f6333eed418e0 SHA-256: f092ae3d74df1bf36d8a3f6295aa2f78f18c37a946d3c5b1bad7c71dbea0a0a4
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=ritual+para+virar+uma+vampira'. This URL is embedded within the document's body text, which also contains a large number of other PDF links, suggesting a link farm or SEO poisoning tactic. The primary malicious link is likely intended to redirect the user to a harmful site.

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/wix?keyword=ritual+para+virar+uma+vampira
    • https://cdn.shopify.com/s/files/1/0433/6159/9656/files/76569996334.pdf
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/dipomerul.pdf
    • https://cdn.shopify.com/s/files/1/0428/9868/6111/files/94886379136.pdf
    • https://cdn.shopify.com/s/files/1/0434/9100/0472/files/buliwobad.pdf
    • https://cdn.shopify.com/s/files/1/0428/0988/4838/files/gokadamusatipupakamepo.pdf
    • https://cdn.shopify.com/s/files/1/0432/5244/9435/files/39470578388.pdf
    • https://cdn.shopify.com/s/files/1/0460/1557/8279/files/dibuxibalipojapomomumu.pdf
    • https://cdn.shopify.com/s/files/1/0459/1733/9797/files/55428388083.pdf
    • https://cdn.shopify.com/s/files/1/0431/1082/6146/files/learn_python_the_hard_way_3_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/8924/8924/files/bombsquad_pro_cracked_apk.pdf
    • https://cdn.shopify.com/s/files/1/0435/1141/4943/files/balloon_no2_font.pdf
    • https://cdn.shopify.com/s/files/1/0429/5802/8959/files/covina_california_weather_report.pdf
    • https://cdn.shopify.com/s/files/1/0437/7178/9470/files/81971546280.pdf
    • https://cdn.shopify.com/s/files/1/0430/3018/4098/files/jcameron-_key._asc.pdf
    • https://cdn.shopify.com/s/files/1/0437/8460/1752/files/21286513898.pdf
    • https://cdn.shopify.com/s/files/1/0435/0682/7428/files/mercury_optimax_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/6777/6919/files/75210342841.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_off000067bd.bin
486209594e31f234274d2084ea3362bc0aba4e90af20a3b06afaecc7f2c6c06d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67BD 4856 bytes
font_01_sfnt_off00007836.bin
5c70fc13ee67129a8fbafda15cacaec4d17f24a2bdd5c9fdaa9c9ad5a5fae2b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7836 11972 bytes

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