Malicious PDF — malware analysis report

Static analysis result for SHA-256 df4523a544fdec84…

MALICIOUS

PDF

37.2 KB Created: 2020-09-23 04:52:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 85bf4f19bd4bb50eef1030fb1b9f2e82 SHA-1: 778c3ac538d9c3660d0ece597e33dfc2d160a514 SHA-256: df4523a544fdec84a58b96d6d7e5dfba6d746d2d8ec26ceb7463f941d2411d00
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to suspicious domains and are likely part of a link farm designed to improve search engine ranking for malicious content. One critical heuristic identified a redirector link to 'https://ttraff.link/wix?keyword=dmv+now+login', suggesting a phishing lure related to DMV login information. The document body also contains this URL, reinforcing the phishing attempt.

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.link/wix?keyword=dmv+now+login
    • http://files.jakessalesandservice.com/uploads/1/3/0/8/130814676/xudanetir.pdf
    • http://jorobo.blackprince.hu/uploads/1/3/2/7/132741136/suviputik-ganosopaxaf-godegix-xenemubeb.pdf
    • http://files.domegaiacommunities.com/uploads/1/3/1/3/131398259/xewomigabixek.pdf
    • http://kofajabe.pwfaa.org/uploads/1/3/1/4/131437987/708bf7c.pdf
    • http://gilawati.ziongarrett.org/uploads/1/3/1/1/131163914/lenotitaziwapis-xixatu-mexojozabazi.pdf
    • http://files.portville-presbyterian.org/uploads/1/3/1/3/131398367/lebebi.pdf
    • http://ganipabip.butterfly-conservation-armenia.org/uploads/1/3/1/3/131380344/4290361.pdf
    • https://cdn.shopify.com/s/files/1/0432/6955/4340/files/belajar_bahasa_inggris.pdf
    • https://cdn.shopify.com/s/files/1/0433/3305/8715/files/97189746123.pdf
    • https://daa77e83-198a-48ad-9dd3-a63b4400b378.filesusr.com/ugd/64bd79_75404273aa554db98c319463c224c298.pdf?index=true
    • https://b5710945-2cfb-413f-95d3-1bbc9a6780d2.filesusr.com/ugd/e948c1_dae740214fad429a88724b98eadce505.pdf?index=true
    • 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_off00005486.bin
cbb33fe899ed26948c4a7a4db41f5c3b6176e94fc6a74a256c4ded1b0e3b472b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5486 4672 bytes
font_01_sfnt_off0000647a.bin
6ffc590d24d220ee53a2c6cc914d0cf0e06497507824b210f35a12bffa31304b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x647A 10520 bytes

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