Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bff5b88719ee073…

MALICIOUS

PDF

34.3 KB Created: 2020-06-12 03:39:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 82d46694aa778a6392ad9194d8ba1d1f SHA-1: d5cbc7634809c509b65e730bbcb324cb9dcb7946 SHA-256: 3bff5b88719ee07384fe6b04f7a5cfbb7f89faa7d14e43e3eb089e60347f7789
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The embedded document body also contains several of these URLs, suggesting a deliberate attempt to direct users to a wide array of external content. The primary purpose appears to be SEO manipulation or hosting potentially malicious content across numerous domains.

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://hostmaster.studiofuergestaltung.de/uploads/1/3/0/2/130289344/130289344.html#order+of+operations+worksheets+grade+9
    • http://mta-sts.mail.ksrad.org/uploads/1/3/0/6/130639679/wafefudubefi.pdf
    • http://eibbedpadilla.com/uploads/1/3/0/5/130550758/4800e6735e.pdf
    • http://myjac.net/uploads/1/3/0/8/130814081/dozijadafekabug.pdf
    • http://befreeproduction.com/uploads/1/3/1/4/131406837/1808104.pdf
    • http://trusthomecare.org/uploads/1/3/1/3/131384442/binoni.pdf
    • http://wholisticgardens.com/uploads/1/3/0/6/130639350/2087889a09c5f1.pdf
    • http://webmail.folsomlandscapedesign.com/uploads/1/3/1/3/131380109/wizozivotil_simuxeduzuma.pdf
    • http://rento.de/uploads/1/3/1/8/131871579/2639e.pdf
    • http://3.undesirable.us/uploads/1/3/0/5/130545818/9625958.pdf
    • http://2ps.undesirable.us/uploads/1/3/1/8/131872096/gubuzefugikim_gosem.pdf
    • http://74-123-79-170.mgwnet.com/uploads/1/3/1/6/131606065/kunibakogefasizori.pdf
    • http://fullyjess.com/uploads/1/3/0/2/130271077/0aa830ba11fef59.pdf
    • http://sidneyburks.com/uploads/1/3/1/3/131380440/4321691.pdf
    • https://xowagibiwu.files.wordpress.com/2020/06/lagasofolaxepe.pdf
    • https://jopawetudame.files.wordpress.com/2020/06/7746450907.pdf
    • https://daritawaba.files.wordpress.com/2020/06/27913090683.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_off00005b36.bin
f0738e39695b66db596165fee916812d76fb7b94810ae4315b3ff9ed71464c79		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B36 10200 bytes

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