Malicious PDF — malware analysis report

Static analysis result for SHA-256 b513b89c7e2749ed…

MALICIOUS

PDF

78.9 KB Created: 2020-08-30 03:27:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57685f1aa25038ba46ab1e1c107ae3c7 SHA-1: 3127e7feb2103c6650246ca9f187d5c0ad3cc15a SHA-256: b513b89c7e2749ed838a7559f1016568ce2fa6a80ca54c7b4d44921a23e42c34
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded URLs suggest a lure to download a book, likely a phishing or scam attempt. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, further supporting the malicious intent of directing users to external sites.

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.com/wix?keyword=wings+of+fire+book+1+pdf
    • https://cdn.shopify.com/s/files/1/0432/1371/7662/files/vebovej.pdf
    • https://cdn.shopify.com/s/files/1/0430/1550/4029/files/9781050597.pdf
    • https://cdn.shopify.com/s/files/1/0430/0816/3993/files/48278418879.pdf
    • https://cdn.shopify.com/s/files/1/0427/9838/3260/files/49701758707.pdf
    • https://cdn.shopify.com/s/files/1/0430/3598/4029/files/19555153655.pdf
    • https://cdn.shopify.com/s/files/1/0431/4379/0760/files/zexufafubi.pdf
    • https://cdn.shopify.com/s/files/1/0434/7897/4629/files/wevibekikatirenirabu.pdf
    • https://cdn.shopify.com/s/files/1/0432/7958/1352/files/mojusesedidaxab.pdf
    • https://cdn.shopify.com/s/files/1/0435/2252/3288/files/90822893798.pdf
    • https://cdn.shopify.com/s/files/1/0435/2471/8746/files/38859402976.pdf
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/snap_circuits_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/7381/4182/files/zopesepodamavuralun.pdf
    • https://cdn.shopify.com/s/files/1/0428/6709/7756/files/nms_rare_metal_element.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_off0000f59d.bin
b2bee8748ed3df8b9adefe0398e2d43b2addfcba5c22345de72188c3b1d82cc4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF59D 5236 bytes
font_01_sfnt_off0001078e.bin
fb9a14c2841e6d8675bcad5d12beb98df516e2004e6a09546d1eab44b463ffc3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1078E 11548 bytes

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