Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebbd0bdcaa433171…

MALICIOUS

PDF

38.6 KB Created: 2020-05-21 05:56:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c7ef9b458d1b8a087f6211348c30c2e SHA-1: 92e04e4f7b42303dff26699756ce98dfc3615f21 SHA-256: ebbd0bdcaa433171d4f28466f06a0047ffa82c5b0857ba5a73e4e3091d7a9675
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a common technique for SEO poisoning or distributing malicious content. The document body, though heavily obfuscated, contains references to 'Concerta ve metilfenidat' and URLs pointing to various domains, suggesting a lure related to pharmaceuticals. The heuristic 'PDF_SEO_LINK_FARM' strongly indicates a malicious intent to redirect users to a network of linked sites, likely for phishing or malware 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://allyourteeth.com/uploads/1/3/1/1/131163658/131163658.html#concerta+ve+metilfenidat
    • http://camerasandchocolatesphotography.com/uploads/1/3/0/5/130545742/kesivowitadabi-lumigejov-worasuwexotew.pdf
    • http://ctrsustainablepractices.org/uploads/1/3/1/1/131163599/soramex_sewumudog_xigozow.pdf
    • http://findkindapp.com/uploads/1/3/0/9/130969923/towogugatuxef-bikarirawab-votajivojikolez.pdf
    • http://duffingitsmoothly.com/uploads/1/3/1/1/131164499/penozuripobidara.pdf
    • http://legend-family.com/uploads/1/3/0/3/130313422/8682633.pdf
    • http://bellannalash.com/uploads/1/3/0/7/130776661/e8f745e87e.pdf
    • http://wildsoulyoga.com/uploads/1/3/0/6/130639574/5607940.pdf
    • http://success4uwith-pam997sales.com/uploads/1/3/1/4/131437291/8779966.pdf
    • http://1simpledownload.com/uploads/1/3/0/6/130622009/gufikutubumon.pdf
    • http://diggindeepsports.com/uploads/1/3/0/7/130738661/3169664.pdf
    • http://maweddingdersses.com/uploads/1/3/0/2/130289311/sawuzokelafeb.pdf
    • http://upennspecialdeliveries.com/uploads/1/3/0/7/130776027/3317620.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_off0000683d.bin
c95c24b235c2ce5b4c2e0128c794ef747930a5164acccd0b11187f7763f1ff85		 pdf-font-stream PDF embedded font (sfnt) at offset 0x683D 12576 bytes

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