Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6ef5122996c38e0…

MALICIOUS

PDF

56.9 KB Created: 2020-08-30 11:24:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b734657d19ca9f0e888e28870b72380 SHA-1: e2912d54daa79a9de0e2bb356b6c6bf56077a850 SHA-256: b6ef5122996c38e09745141e32237dbdcb2bbe31ff44df56c75d694947578ea5
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the same URL that is linked to the redirector. This suggests the primary goal is to redirect the user to a malicious site, likely for phishing or malware delivery.

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=scott+pilgrim%2527s+precious+little+life+color
    • https://cdn.shopify.com/s/files/1/0433/5311/2735/files/92562714298.pdf
    • https://cdn.shopify.com/s/files/1/0439/4831/0683/files/vidulo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6463/1189/files/peminifenudijanixop.pdf
    • https://cdn.shopify.com/s/files/1/0429/8244/1113/files/78605916882.pdf
    • https://cdn.shopify.com/s/files/1/0431/9592/4637/files/packers_vs_lions_predictions.pdf
    • https://static.usrfiles.com/ugd/b8c837_b3790cfcef234d76893c26ee38e8193e.pdf
    • https://static.usrfiles.com/ugd/b8c837_782299235530450c9058303eeaf824af.pdf
    • https://static.usrfiles.com/ugd/f46427_4248c22121904b70a8d4fd340312044f.pdf
    • https://cdn.shopify.com/s/files/1/0430/4066/9849/files/fekejodelitukogiz.pdf
    • https://cdn.shopify.com/s/files/1/0434/8585/5897/files/hernia_hiatal_dieta.pdf
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/toyota_4runner_manual_transmission.pdf
    • https://cdn.shopify.com/s/files/1/0427/4028/5607/files/44690400659.pdf
    • https://cdn.shopify.com/s/files/1/0429/2994/6787/files/nejiwulamikoduromeze.pdf
    • https://cdn.shopify.com/s/files/1/0437/2345/6666/files/bauman_capitalismo_parasitrio.pdf
    • https://cdn.shopify.com/s/files/1/0440/4002/8325/files/marie_kondo_folding_fitted_sheets.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_off00009f57.bin
05571c959b72ed7d8044c8f905a57c8e4c4dd1a3cd1b624495b3db3b304cdfa8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F57 5260 bytes
font_01_sfnt_off0000b12c.bin
baeb89a40ecefda411354269bb90e49deadaf735dff5fdbcbd3c60f675bbea27		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB12C 11344 bytes

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