Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa3b374110b64364…

MALICIOUS

PDF

43.5 KB Created: 2020-03-21 15:41:26 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 2c7fac060200015bb3e16322e871e3eb SHA-1: 4b1b3997c0dce3db6f7f7da63d2981ba343bc454 SHA-256: fa3b374110b6436434ab04b9da9b511578d424cb12b3aae2e71d200d1052fed1
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains references to URLs that are likely part of a link farm or redirection scheme to host malicious content or perform SEO abuse.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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://picturesbygerry.com/uploads/1/3/0/6/130604369/130604369.html#principles+of+design+in+art+quizlet
    • http://www.halocrystals.com.au/uploads/1/3/0/6/130639661/zafomibowaf.pdf
    • http://webmail.whimsicalwit.com/uploads/1/3/0/6/130620437/1936125.pdf
    • http://www.getoilywithdane.com/uploads/1/3/0/6/130603748/wimuduwuse.pdf
    • http://www.roses-bloom.com/uploads/1/3/0/5/130539714/nudutoxefepevatikapa.pdf
    • http://worshipworthywear.com/uploads/1/3/0/4/130488067/35f46cd7ddde.pdf
    • http://podiatricks.com/uploads/1/3/0/2/130272440/0a064.pdf
    • http://thebutchersbride.com/uploads/1/3/0/6/130621357/gepazudo.pdf
    • http://benpenrod.org/uploads/1/3/0/6/130639861/4793639.pdf
    • http://www.mimeya.be/uploads/1/3/0/5/130546096/86256e492f.pdf
    • http://demthreads.com/uploads/1/3/0/7/130775917/tamowo.pdf
    • http://www.omkampen.no/uploads/1/3/0/6/130639226/rirovebejaba-zetunulej-xizimusuwugazix-nelopupamedep.pdf
    • http://tbeautifuldesign.com/uploads/1/3/0/5/130543945/mipezesav_denoje.pdf
    • http://www.inessenceinc.com/uploads/1/3/0/6/130604161/xekikakowamadiren.pdf
    • http://cavalierspublishing.com/uploads/1/3/0/6/130640051/3094764.pdf
    • http://cpanel.gulfbreezeschoolofmusic.com/uploads/1/3/0/6/130604689/6958224.pdf
    • http://fushionbeauty.studio/uploads/1/3/0/9/130968906/5727777.pdf
    • http://www.beautifullyuncluttered.com/uploads/1/3/0/6/130620612/sufagawafuwanij.pdf
    • http://northportcarpet.com/uploads/1/3/0/6/130604422/watuxesajiviz.pdf
    • http://springhillsupplyltd.com/uploads/1/3/0/6/130621613/gujid-pemodonuwix-fikabixejopu.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_off00008027.bin
51427e25298bbf53a15a4c9f20397888456948cd30bc7ade033b0f3fe02a6a21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8027 7948 bytes

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