Malicious PDF — malware analysis report

Static analysis result for SHA-256 f617038e9e306c11…

MALICIOUS

PDF

44.0 KB Created: 2020-04-17 23:51:02 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 7269c1808da1fb13c424177e4029408a SHA-1: 4f19cd55b2b8e7a31071543d60cc1249135aa702 SHA-256: f617038e9e306c114bf75655e9211b3f1fa1a7b5c08239f20bfd186642d193d3
196 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, characteristic of a link farm or SEO spam. The primary heuristic indicates it's a PDF dropper, and ClamAV confirms this detection. The document body, though heavily obfuscated, contains a reference to 'Acura rsx manual for sale near me', suggesting a lure to attract users to click on the embedded malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • ClamAV: Pdf.Dropper.Agent-8492470-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8492470-0
  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://strigiformae.net/uploads/1/3/0/8/130874496/130874496.html#acura+rsx+manual+for+sale+near+me PDF link annotation
    • http://thefriendlybird.com/uploads/1/3/1/3/131398242/koxexesorapifak.pdfIn PDF document text
    • http://jl-remodeling.net/uploads/1/3/0/2/130288962/ea562e7ac2d6.pdfIn PDF document text
    • http://leads2freedom.com/uploads/1/3/1/3/131383664/bujemeguwufari.pdfIn PDF document text
    • http://visualsoup.org/uploads/1/3/0/7/130739886/2681593.pdfIn PDF document text
    • http://williamjohnmackenzie.com/uploads/1/3/1/1/131164320/xupowilenavanen.pdfIn PDF document text
    • http://jrconstructionri.com/uploads/1/3/1/0/131070165/mekolinawi.pdfIn PDF document text
    • http://drivegauge.com/uploads/1/3/0/5/130551427/xoxuba.pdfIn PDF document text
    • http://facilementoublie.com/uploads/1/3/0/4/130488779/eb1d715aea.pdfIn PDF document text
    • http://allurlife.com/uploads/1/3/1/3/131398278/a7efa1f.pdfIn PDF document text
    • http://marriagecelebranthilaryvaneldik.com/uploads/1/3/1/3/131383743/vafobakena_sosujeta.pdfIn PDF document text
    • http://ferryfamily.net/uploads/1/3/1/3/131380467/nejodijubo.pdfIn PDF document text
    • http://thenorcliffefoundation.com/uploads/1/3/1/4/131406140/dofudijip.pdfIn PDF document text
    • http://serenitymentalhealthservices.net/uploads/1/3/0/3/130313191/7994645.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

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_off00008293.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8293 9028 bytes
SHA-256: 86d3eaf584099b0ba2f81c3b9310eb072ee6ef9007152b7eb57353ca37746c25

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