Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb8e3fdddc9e7fda…

MALICIOUS

PDF

37.1 KB Created: 2020-03-30 07:45:18 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 97a2b0f6021dbc9d5fea1b2f46c89bcc SHA-1: 6e056c1c53da1a93774a112ad8ea5a275ebc214a SHA-256: bb8e3fdddc9e7fda1fc836269addf546af8b717b350421f011d0f43599528932
92 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, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body, though partially corrupted, includes the text 'Informe de auditoria ejemplo ecuador', suggesting a lure for users to click on the embedded links. The primary URL identified is http://melbournehotelplaceholder.devsite-1.com/uploads/1/3/0/8/130813144/130813144.html#informe+de+auditoria+ejemplo+ecuador. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://melbournehotelplaceholder.devsite-1.com/uploads/1/3/0/8/130813144/130813144.html#informe+de+auditoria+ejemplo+ecuador
    • http://gloriagoldreich.com/uploads/1/3/0/2/130289310/dumuvod-vobepogal-jifukalab-favomosunelaxim.pdf
    • http://christian-charles-photography.com/uploads/1/3/0/5/130541209/de284efa474d.pdf
    • http://inglesaldia.com/uploads/1/3/0/5/130540461/7444052b6617bd.pdf
    • http://odessawaterwell.com/uploads/1/3/0/6/130621261/d41e8087893.pdf
    • http://eastcobbrugbyclub.org/uploads/1/3/0/8/130874432/masijegawimu_gemufo_towizaxupedipis_sovadojomugefal.pdf
    • http://westcoastchristiancollege.com/uploads/1/3/0/6/130621197/6934195.pdf
    • http://supremefoundations.ca/uploads/1/3/0/8/130874142/vukijimawifiderifag.pdf
    • http://lrdlst.com/uploads/1/3/1/3/131383790/3611204.pdf
    • http://moses-balan.com/uploads/1/3/0/4/130488834/05b44391497.pdf
    • http://hopehealthacademy.org/uploads/1/3/0/7/130776006/funabug.pdf
    • http://telangaana.info/uploads/1/3/0/5/130543868/1143868.pdf
    • http://hospicehearts.org/uploads/1/3/0/2/130272571/kajaziditadugaxuxoxo.pdf
    • http://thechrischapman.com/uploads/1/3/1/4/131453259/gutegitivulo.pdf
    • http://nextgenproperties.net/uploads/1/3/0/7/130740244/2406351.pdf
    • http://mirvavogt.com/uploads/1/3/0/5/130590698/2096711.pdf
    • http://webdisk.tgwca.org/uploads/1/3/0/7/130776504/959635.pdf
    • http://brianhandley.com/uploads/1/3/1/0/131069915/a183d27b5.pdf
    • http://buysomethingscary.com/uploads/1/3/0/2/130291702/e52bb5d32b8.pdf
    • http://robinjoyphotography.net/uploads/1/3/0/5/130545475/9b34ffed453ec3.pdf
    • http://raycoffee.net/uploads/1/3/1/4/131406732/25936f.pdf
    • http://weearthrepresentahs.com/uploads/1/3/0/8/130874366/bfbca0a12cc.pdf
    • http://mmccolorado.online/uploads/1/3/0/2/130287942/vusiziba_zelogonux_zofepamuxis_zipedenarafebi.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_off00006824.bin
3e720149e9361239b274c7f56b3e2d4f4331533f118f2a8e6844fbfb90323834		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6824 7496 bytes

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