Malicious PDF — malware analysis report

Static analysis result for SHA-256 884e9191bec147fb…

MALICIOUS

PDF

34.0 KB Created: 2020-06-05 21:50:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 61a0af5e46aa990a2f22e091a792e6ad SHA-1: 114c396681db93480b036284c0bbf45803f8326f SHA-256: 884e9191bec147fb1e80490822c3771f1399aed4d598ee19ffb5e2a6fd4e25f7
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document is identified as malicious by an ML classifier and contains a large number of external links, characteristic of a link farm or SEO spam tactic. The document body, though partially obfuscated, contains URLs that likely lead to further malicious content or phishing attempts. The presence of numerous external links suggests an attempt to direct users to potentially harmful websites, possibly as part of a broader phishing or malware distribution scheme.

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://a1732944xstreamtravel.xsideas.com/uploads/1/3/0/4/130483270/130483270.html#python+3+regex+cheat+sheet PDF link annotation
    • http://architectsareassholes.com/uploads/1/3/0/5/130551745/wabuwemewa_suxemilejifoko.pdfIn PDF document text
    • http://joyful-kidz.com/uploads/1/3/2/3/132302928/7883146.pdfIn PDF document text
    • http://webpsychotherapy.net/uploads/1/3/2/3/132303009/962511a.pdfIn PDF document text
    • http://3wx.undesirable.us/uploads/1/3/0/5/130540683/b7689e68881ce0d.pdfIn PDF document text
    • http://emmaelizabethphotography.com/uploads/1/3/0/5/130588867/a2cac6.pdfIn PDF document text
    • http://cfomtg.com/uploads/1/3/0/2/130289311/bddfd.pdfIn PDF document text
    • http://3x3.undesirable.us/uploads/1/3/1/4/131409127/gikokekuvo.pdfIn PDF document text
    • http://macauleyconstruction.com/uploads/1/3/1/0/131071076/6206941.pdfIn PDF document text
    • http://everyoneiknowisridiculous.com/uploads/1/3/0/5/130551468/wivexotezuwevukemut.pdfIn PDF document text
    • http://a1732944xstreamtravel.xsideas.com/uploads/1/3/0/4/130483270/terms.htmlIn PDF document text
    • http://a1732944xstreamtravel.xsideas.com/uploads/1/3/0/4/130483270/dmca.htmlIn PDF document text
    • http://a1732944xstreamtravel.xsideas.com/uploads/1/3/0/4/130483270/policy.htmlIn PDF document text
    • https://cheatography.comIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://jenemipet977039864.files.wordpress.com/2020/06/50276124272.pdfIn PDF document text
    • https://jotozagobom540614489.files.wordpress.com/2020/06/rupotilumiki.pdfIn PDF document text
    • https://lopulonemeji.files.wordpress.com/2020/06/703441798.pdfIn PDF document text
    • https://maranab.files.wordpress.com/2020/06/88362580994.pdfIn PDF document text
    • https://detupina.files.wordpress.com/2020/06/32894860713.pdfIn PDF document text
    • https://kenubid.files.wordpress.com/2020/06/matiripixawozevigevasilu.pdfIn PDF document text
    • https://wepaxotuber.files.wordpress.com/2020/06/29087583934.pdfIn PDF document text
    • https://venazuburam.files.wordpress.com/2020/06/353423043.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://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000576e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x576E 10632 bytes
SHA-256: 6a2678dc08e7aa149c774a38611cbe2210a0b50a37d6e16fe30df351c749b3a0

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