Malicious PDF — malware analysis report

Static analysis result for SHA-256 fadbf9b93aa56a08…

MALICIOUS

PDF

40.5 KB Created: 2020-08-05 09:55:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7039c90d63e04f19d429a410457c5213 SHA-1: 205df98d78c4dd8d94645aecdff5846fb6494ae2 SHA-256: fadbf9b93aa56a08285d4f42c12501b40c3809f37f75ddcc5dd0e89eff2cd52e
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.com). This suggests a link farm or phishing attempt designed to funnel users to malicious content. The document body, though heavily obfuscated, contains the primary malicious URL, indicating the intent to redirect users. No scripts were extracted from this sample.

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/pify?keyword=international+business+level+strategies+pdf
    • http://telupup.dcchurchofchrist.org/uploads/1/3/0/9/130969060/9277174.pdf
    • http://wasoko.paintings4areason.com/uploads/1/3/0/8/130874197/9498758.pdf
    • http://bezuki.muluki.com/uploads/1/3/1/3/131398591/parometurakipulelida.pdf
    • http://files.stephendoughtonfoundation.org/uploads/1/3/1/4/131406841/4756f72b16.pdf
    • http://files.mfhenna.com/uploads/1/3/1/8/131857114/bemujewes.pdf
    • https://cdn.shopify.com/s/files/1/0431/5663/5816/files/22094642129.pdf
    • https://cdn.shopify.com/s/files/1/0437/0441/8455/files/vupenaditekufaferofuxa.pdf
    • https://cdn.shopify.com/s/files/1/0432/3485/3021/files/salunoma.pdf
    • https://cdn.shopify.com/s/files/1/0437/0094/5048/files/pazepesukavov.pdf
    • https://cdn.shopify.com/s/files/1/0432/3131/4077/files/duloduwemarekopekujuwus.pdf
    • https://cdn.shopify.com/s/files/1/0430/6829/3287/files/javuxetinupus.pdf
    • https://cdn.shopify.com/s/files/1/0431/6345/1560/files/zutitagegidejotawirugel.pdf
    • https://cdn.shopify.com/s/files/1/0435/0862/9659/files/digital_dash_mp3.pdf
    • https://cdn.shopify.com/s/files/1/0437/6389/2375/files/el_alquimista_libro_completo.pdf
    • https://cdn.shopify.com/s/files/1/0432/7296/2203/files/verupodoziberob.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12247178291.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_off00006085.bin
36b68f28a0e497bfc9d16ad9e004da3fd70b30a115c6abffb257e0be91fac48c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6085 5348 bytes
font_01_sfnt_off000072c5.bin
e135aca9a1336cad5091414ffdd75a3b59a5c91db68532338138c07a307fdbac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72C5 9936 bytes

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