Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab2f548cad030420…

MALICIOUS

PDF

36.7 KB Created: 2020-06-04 06:03:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d9b6fd06ed41d61f21127d2ef125769 SHA-1: 12f786029d9796377aeed4a7dcdb905b871284f4 SHA-256: ab2f548cad0304206298de5a2195e729d368ef3fbf6978bc0933140aa693de08
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a significant number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The document body, though heavily obfuscated, contains references to URLs that are also present in the heuristics. The primary attack pattern appears to be directing users to a large farm of external websites, potentially for SEO manipulation or to host further malicious content. No scripts were extracted, limiting the analysis of direct payload delivery.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://africasmefinance.com/uploads/1/3/1/8/131871829/131871829.html#magna+carta+holy+grail+torrent
    • http://mummymakemesomething.net/uploads/1/3/0/5/130546937/034341d.pdf
    • http://blissfullbeauty.net/uploads/1/3/1/4/131453592/bf0897.pdf
    • http://ridalcomediation.com/uploads/1/3/1/6/131637103/2560853.pdf
    • http://fmg-goldau.ch/uploads/1/3/1/6/131606861/25f4f2a4bad3a8.pdf
    • http://kefinancialservices.com/uploads/1/3/1/8/131856033/kajiwesi.pdf
    • http://africasmefinance.com/uploads/1/3/1/8/131871829/terms.html
    • http://africasmefinance.com/uploads/1/3/1/8/131871829/dmca.html
    • http://africasmefinance.com/uploads/1/3/1/8/131871829/policy.html
    • https://wejujixagaz.files.wordpress.com/2020/06/xasafadufa.pdf
    • https://wosibol.files.wordpress.com/2020/06/62419362561.pdf
    • https://ribijuwet742308788.files.wordpress.com/2020/06/juvadasakosuperuf.pdf
    • https://tigizenawa.files.wordpress.com/2020/06/kiwoninaw.pdf
    • https://nulogep.files.wordpress.com/2020/06/vasatibikatanalef.pdf
    • https://sosunilavef.files.wordpress.com/2020/06/nivetowefijan.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000612e.bin
37d605f40eb60f10ce57e2a12fac5ada07d7c538ff2f86ed9f42c1502b38438b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x612E 11260 bytes

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