Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5aaf72628792b24…

MALICIOUS

PDF

39.4 KB Created: 2020-03-07 23:54:28 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 80843d007316076f6a28c627a88432e8 SHA-1: a9a152ed599337922c4f46d7d83c26172d7addf2 SHA-256: a5aaf72628792b24a66c1d53187ffc3c22bc6734cd5aed7f86f6914099b0e103
62 Risk Score

Malware Insights

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

The PDF document contains numerous external links, a common tactic for distributing malicious content or conducting phishing operations. The document body, though partially corrupted, suggests a lure related to a 'Diabetic retinopathy study report'. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of generated links, reinforcing the malicious intent. The primary attack pattern involves redirecting the user to external URLs hosted on domains like '7383qipaiyouxi.br3h.com' and 'lightjab.net'.

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://7383qipaiyouxi.br3h.com/uploads/1/3/0/3/130313252/130313252.html#diabetic+retinopathy+study+report
    • http://lightjab.net/uploads/1/3/0/7/130776611/dogexa-leguvet-vozupedo.pdf
    • http://integratedself.net/uploads/1/3/0/2/130270831/299c951beee8a8.pdf
    • http://elementecommerce.com/uploads/1/3/1/0/131070712/db3a12452c48.pdf
    • http://southpawspetexpo.ca/uploads/1/3/0/8/130813945/sidiked-dejesewajitemat.pdf
    • http://thegreenteacher.org/uploads/1/3/0/4/130491319/3274f8f1d0d46ec.pdf
    • http://pornpurity.com/uploads/1/3/0/8/130814681/8014572.pdf
    • http://ecdems.us/uploads/1/3/0/4/130435990/fbba21f23be7ce.pdf
    • http://www.aadunsustainability.com/uploads/1/3/0/5/130588515/nogesasujul.pdf
    • http://mta-sts.mail.joshuaswalker.com/uploads/1/3/0/3/130379803/9132621.pdf
    • http://synergylighttherapies.com/uploads/1/3/0/6/130621330/ffb48da8305aa.pdf
    • http://thetruthaboutarthurspector.net/uploads/1/3/0/7/130738789/1190502.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_off00006ff8.bin
e655a158c608e3da7b42754a6bf122f0ad746d95da32a4ba84f9bfe33a701e49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF8 8480 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.