Malicious PDF — malware analysis report

Static analysis result for SHA-256 91f37cce0974db3c…

MALICIOUS

PDF

46.3 KB Created: 2020-03-14 10:42:21 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-08
MD5: 418d156dbe3c0908e12b5e2317c9f16b SHA-1: f07d5768d66cc1600f81a002fcaeb6a84a7ccd48 SHA-256: 91f37cce0974db3cee63c1bc850bb417bde6415571d9d44f0bfdd9ffad9dde7b
104 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 PDF files hosted on various domains. The document body text, though partially corrupted, includes a reference to 'activereports 12 licenses. licx' and a URL that appears to be a lure. The presence of a 'Visual download / call-to-action button lure' heuristic further supports the interpretation that this document is designed to trick the user into downloading a payload. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://9oeyv.slpny.com/uploads/1/3/0/8/130814441/130814441.html#activereports+12+licenses.+licx PDF link annotation
    • http://iphoneprinter.com/uploads/1/3/0/3/130313213/jorab_nabofatovij_donaribidagivij_batopif.pdfIn PDF document text
    • http://psychiclifecoachgwen.com/uploads/1/3/0/6/130604022/lidoxenokepobu.pdfIn PDF document text
    • http://saharaexchange.com/uploads/1/3/0/4/130489080/07387d4e0c15cc.pdfIn PDF document text
    • http://gnnetworking.com/uploads/1/3/0/4/130478975/3367405.pdfIn PDF document text
    • http://htsmedia.com/uploads/1/3/0/5/130588475/gowafi-gerisate.pdfIn PDF document text
    • http://oxnardpoolcleaning.com/uploads/1/3/0/7/130775522/6653538.pdfIn PDF document text
    • http://www.scflorianisimpersrl.com/uploads/1/3/0/8/130813612/duwixewikisoxumef.pdfIn PDF document text
    • http://dsskinstudio.com/uploads/1/3/0/7/130738779/lalugusedoz.pdfIn PDF document text
    • http://denzels.com/uploads/1/3/0/6/130604205/7762304.pdfIn PDF document text
    • http://riverbecomesocean.com/uploads/1/3/0/7/130775962/bojuz.pdfIn PDF document text
    • http://www.arianagibbard.com/uploads/1/3/0/7/130738949/a4fa238cb7a486.pdfIn PDF document text
    • http://www.perfect-trucks.com/uploads/1/3/0/3/130379363/33d9123175886e2.pdfIn PDF document text
    • http://beclaim.com/uploads/1/3/0/6/130604537/sivuzotimitoriz_mebageve_rebevubagepi.pdfIn PDF document text
    • http://livetheivytampa.com/uploads/1/3/0/6/130621570/vomanojize_zanul_xarini_bonuzukadub.pdfIn PDF document text
    • http://applebrookvet.com/uploads/1/3/0/6/130620700/guvapafevuz-suguk-gowap.pdfIn PDF document text
    • http://blackcatsculpture.com/uploads/1/3/0/6/130639263/kunabukopavo.pdfIn PDF document text
    • http://www.arjumangroup.com/uploads/1/3/0/4/130435842/a209351.pdfIn PDF document text
    • http://pngdata4development.org.pg/uploads/1/3/0/5/130545475/eef8166d63d6.pdfIn PDF document text
    • http://www.streamlinedigital.ca/uploads/1/3/0/6/130603890/7171731.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000777f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x777F 7932 bytes
SHA-256: c420fddcb23048c0bb13a9dcabd008a7b67d8524da63f496575ae291e8e317a3
font_01_sfnt_off00009676.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9676 16036 bytes
SHA-256: 779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63