Malicious PDF — malware analysis report

Static analysis result for SHA-256 0116062abb8cd583…

MALICIOUS

PDF

36.8 KB Created: 2020-04-14 06:08:05 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6966a98af4aea6b89475f978feab0d6b SHA-1: 7d182c987dade392fe41d51e61cea488a2cbc325 SHA-256: 0116062abb8cd583b62272d895d2408a6c5f018efc4876757a659c99fe4c3722
104 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, characteristic of a link farm, designed to direct users to malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs further supports a malicious intent to redirect users. No scripts were extracted, but the PDF structure itself is indicative of a phishing or malware distribution attempt.

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://staceyabrams.us/uploads/1/3/0/6/130640009/130640009.html#chicken+invaders+3+easter+edition
    • http://joejefferson.com/uploads/1/3/0/6/130604145/nizejepujafilo_litipewikoxeraj_sezasanuje.pdf
    • http://treperth.com/uploads/1/3/1/3/131398185/vugawunijed.pdf
    • http://megamusicmakerx.com/uploads/1/3/0/7/130776511/1163680.pdf
    • http://thefastfatlossdiet.com/uploads/1/3/0/5/130551184/lafinewofopavixasoki.pdf
    • http://compassionflower.com/uploads/1/3/0/6/130604667/wagotubet_buzixeboz_zupunetevifivu_debapinirame.pdf
    • http://saramelina.org/uploads/1/3/0/7/130776577/0e8ff7a4894e7.pdf
    • http://janewaggy.com/uploads/1/3/0/2/130287502/d0c8606cf56d.pdf
    • http://sheanaturalskincareproducts.com/uploads/1/3/1/3/131382982/bc28f5dd77b0ec.pdf
    • http://chinesemtgguy.com/uploads/1/3/1/4/131406532/kurale_relotaronidibe.pdf
    • http://fosrocindia.com/uploads/1/3/0/8/130814060/wuzerolokado.pdf
    • http://greenbestmachine.com/uploads/1/3/0/3/130312968/72acc.pdf
    • http://sweet-t-creatives.com/uploads/1/3/0/9/130969624/sodoxu.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_off000066d3.bin
6c6ba471a3e96146bc22c5ad7d5bb704a136a139504657695df6ef8939840b5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66D3 8456 bytes

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