Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b27307eb8c8eaa6…

MALICIOUS

PDF

44.2 KB Created: 2020-03-07 13:41:01 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 00ccb7186fe269d8e6512815957d0908 SHA-1: f02324d81f993d8ae576094cbb31222408e74ce4 SHA-256: 1b27307eb8c8eaa6d2a446fcf5528e09fc865d43d7be91b0402483783d6b886d
70 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to other PDFs. This suggests a link farm or SEO spam tactic designed to drive traffic to malicious content. The presence of a 'download' lure further supports this. No scripts were extracted, limiting the ability to determine a specific payload or family.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://cldqe.bpmtc.com/uploads/1/3/0/7/130739704/130739704.html#deferred+income+tax+expense+journal+entry
    • http://mta-sts.mx.casting4growth.com/uploads/1/3/0/7/130739875/femobisekepok.pdf
    • http://practicalpromotion.nl/uploads/1/3/0/8/130814056/vawowobaxivekete.pdf
    • http://eatanytime.com/uploads/1/3/0/5/130589179/xedipixoro.pdf
    • http://www.starsandimagination.com/uploads/1/3/0/5/130590008/d7079.pdf
    • http://lapbandlosangeles.net/uploads/1/3/0/7/130775441/854475.pdf
    • http://www.hbtgraphics.com/uploads/1/3/0/8/130814298/kogivuvun.pdf
    • http://yogaindradevi.com/uploads/1/3/0/7/130739298/6109972.pdf
    • http://dankefurde.com/uploads/1/3/0/5/130590047/4590491.pdf
    • http://www.agrudjr.com/uploads/1/3/0/7/130739540/gajisukuduvifi-dasisivukuloga.pdf
    • http://motelpresidente.com/uploads/1/3/0/7/130739280/1458832.pdf
    • http://sarahbrockway.com/uploads/1/3/0/5/130588497/vezipufozetigezumevi.pdf
    • http://tikicars.net/uploads/1/3/0/7/130739936/716168.pdf
    • http://mirthworks.net/uploads/1/3/0/7/130740209/gevokenunijogud.pdf
    • http://www.etcetera-etcetera.com/uploads/1/3/0/9/130969083/796fb91717d3.pdf
    • http://writerswithroomtobloom.com/uploads/1/3/0/7/130740045/012944a9.pdf
    • http://webmail.adventureafter50.com/uploads/1/3/0/6/130622011/7e49f2041.pdf
    • http://oliviadummer.com/uploads/1/3/0/8/130874095/jejidofogateku.pdf
    • http://www.marie-louphotography.com/uploads/1/3/0/5/130588599/jibirosinekewa.pdf
    • http://hostmaster.wellbeingsurveys.co.uk/uploads/1/3/0/3/130379246/pamamifukosetaxobis.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_off00008497.bin
9a981c4489b72cd35eebbe128287a4dacbc26e313cc59b15cce08c772d882ca6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8497 7940 bytes

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