Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcf9d16cda8974db…

MALICIOUS

PDF

35.7 KB Created: 2020-05-20 18:27:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 116a738d899d7b9e3732a0e9266bf395 SHA-1: 2d25e9007b84a3fecaf85829972ead195ec39c42 SHA-256: bcf9d16cda8974dbb89435e1234ba4a91cbb01306603eb44b8b2475a063eb9e6
94 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a common tactic for SEO poisoning and driving traffic to malicious sites. The document body mentions 'Fake car insurance card maker', suggesting a lure to a phishing or scam website. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://msbr.ca/uploads/1/3/0/5/130539438/130539438.html#fake+car+insurance+card+maker
    • http://talkbuddy.org/uploads/1/3/0/8/130873851/1087130.pdf
    • http://clevelandprintworks.com/uploads/1/3/0/6/130621418/vozagififek.pdf
    • http://dawnstratchkodesigns.com/uploads/1/3/1/3/131398405/xomedolodemum.pdf
    • http://zoomgroom.club/uploads/1/3/0/8/130874320/9318957.pdf
    • http://academievoorhetleven.nl/uploads/1/3/0/5/130589032/ee747.pdf
    • http://timo-stein.de/uploads/1/3/1/4/131438427/bapasidoju-givuga.pdf
    • http://littlebutfierce.org/uploads/1/3/0/7/130739559/cb5e7b55fec3.pdf
    • http://sencilloelegante.com/uploads/1/3/1/3/131384542/kukixetezotexan.pdf
    • http://fwelibrary.com/uploads/1/3/0/7/130739099/63c629cf.pdf
    • http://easyopticaleyecare.net/uploads/1/3/0/6/130604858/zulidef-nukivakip-zunepowikurilu.pdf
    • http://micro-datanet.net/uploads/1/3/0/3/130313577/8591940.pdf
    • http://blender.pub/uploads/1/3/0/7/130775154/e7782c1.pdf
    • http://detergex.com/uploads/1/3/0/6/130603783/kixigoxepase.pdf
    • http://anthemsmusic.com/uploads/1/3/0/6/130639370/9bb471029f451.pdf
    • http://dreamcatchereventschicago.com/uploads/1/3/0/9/130969445/9354356.pdf
    • http://agentedapazfbi.com/uploads/1/3/1/6/131637780/2870887.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_off00006031.bin
889c4f23f604bb636e7c0d1b34d35cea351f744da75446cd94a008804feb7d86		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6031 10336 bytes

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