Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecc105997e82eeb5…

MALICIOUS

PDF

42.6 KB Created: 2020-03-23 03:44:48 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b9103790b28084d5b66d9c7a912e15c0 SHA-1: 85a73783ab1d01a4b667426e753be46da0abafd2 SHA-256: ecc105997e82eeb5d3debc1ac5356ca4361bebf38b5acd130a2c88d636a783b0
92 Risk Score

Malware Insights

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

This PDF file exhibits characteristics of a link farm, with a high number of external URLs pointing to various domains. The PDF_SEO_LINK_FARM heuristic indicates a deliberate attempt to create a network of linked documents. The ML_NYX_PDF_MALICIOUS classifier strongly supports the malicious nature of this file. The primary attack pattern involves redirecting users through these numerous links, likely to a malicious site or to distribute further malware.

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://sanprado.net/uploads/1/3/0/4/130483041/130483041.html#freshii+oaxaca+bowl
    • http://michaelyipfilms.net/uploads/1/3/0/6/130621912/merawirepiripe.pdf
    • http://chapagora.com/uploads/1/3/0/6/130621784/remivuroluzovakuzuve.pdf
    • http://rocktoolscn.com/uploads/1/3/0/7/130738631/rewotutozubofen.pdf
    • http://bonnielbowman.net/uploads/1/3/0/7/130739876/1566423.pdf
    • http://mymancardgame.com/uploads/1/3/0/7/130739263/vozibudabav-sexusiwirom-lawadekozum-dilodekikufulu.pdf
    • http://cpanel.taypiping.co.uk/uploads/1/3/0/6/130605111/7895401.pdf
    • http://ns.mattwebb.co.uk/uploads/1/3/0/6/130605433/sonipefev.pdf
    • http://jbsgrafix.com/uploads/1/3/0/3/130312912/banilenisa_xixegexiduzorig.pdf
    • http://mail.cfameyes.com/uploads/1/3/0/3/130379357/7999962.pdf
    • http://bsgfinancial.com/uploads/1/3/0/2/130271009/9100157.pdf
    • http://compassionkits.com/uploads/1/3/0/4/130489522/bupokonigebu-regarifujuf-wefonas.pdf
    • http://xtremetruckandtrailer.com/uploads/1/3/0/8/130874233/zowuzigevurim.pdf
    • http://bikinginrio.com/uploads/1/3/0/5/130590026/4761359.pdf
    • http://pof-addfreecall.com/uploads/1/3/0/2/130272363/fajeniriginomo.pdf
    • http://wanderingtrailsflowers.com/uploads/1/3/0/5/130538990/zirejubu.pdf
    • http://merraephotography.com/uploads/1/3/0/6/130639222/5176771.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_off00007d29.bin
2cb5d72816ceb90705c54f7880616150f2d4e830d5bf429751f89f961f07ae36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D29 8324 bytes

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