Malicious PDF — malware analysis report

Static analysis result for SHA-256 10895663013d86ff…

MALICIOUS

PDF

55.8 KB Created: 2020-04-22 00:12:43 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 945ef45d04597c6fd2b511f8d5ed9bae SHA-1: c97f52c08e449157633bc10934f077a5cc8b352e SHA-256: 10895663013d86ff207cb893899b11dd337e059a862277e05803ec337e1284ca
96 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, many of which appear to be part of a link farm designed to improve search engine rankings. One of the embedded URLs, 'http://aliciaforswva.com/uploads/1/3/0/2/130271096/130271096.html#chirosecure+informed+consent', suggests a lure for phishing or further malicious activity. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of harmful intent.

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://aliciaforswva.com/uploads/1/3/0/2/130271096/130271096.html#chirosecure+informed+consent
    • http://drkpeakperformance.com/uploads/1/3/0/2/130271076/furepisoza-kodimub.pdf
    • http://marcsingsmaui.com/uploads/1/3/1/4/131452754/rawinoru-posozulor-gosabinibasamu-jajun.pdf
    • http://johnnybluemusic.com/uploads/1/3/0/4/130490053/b060a04.pdf
    • http://fingerloopphonecase.com/uploads/1/3/0/2/130292125/nukeze.pdf
    • http://belleairbeachresort.com/uploads/1/3/0/4/130483478/wivogujem.pdf
    • http://altermovum.com/uploads/1/3/0/2/130271226/babov.pdf
    • http://smg.mx/uploads/1/3/1/3/131398154/2073743.pdf
    • http://valleyfloors.com/uploads/1/3/1/4/131438823/womeraki-zimad.pdf
    • http://reikiforalternativehealing.com/uploads/1/3/0/3/130323453/2817897.pdf
    • http://lovingrkb.com/uploads/1/3/0/7/130776272/luzaxaxu-fatizudegepekag-rolijetanif.pdf
    • http://experienceitalyyourway.com/uploads/1/3/1/4/131407691/dixozopinumife.pdf
    • http://justifiablefitness.com/uploads/1/3/0/8/130814042/3476e7308ddbe0.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/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009cea.bin
38aa53f861355e7f6be60148adbaf6613c5fb15c4d721ef3ef9cc387c0b860c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9CEA 8248 bytes
font_01_sfnt_off0000bcc1.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBCC1 16036 bytes

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