Malicious PDF — malware analysis report

Static analysis result for SHA-256 97b47df1457f9848…

MALICIOUS

PDF

47.9 KB Created: 2020-04-07 14:21:15 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: c080c3d95f7ad1f774f87041e1916dea SHA-1: 1c497a67d1e657116c867817dc04033d5223854c SHA-256: 97b47df1457f9848e59e914a1d7b14d9642a8355b6e0ffc96fd2966c8908d32d
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains a large number of external links, many of which point to other PDF files on unrelated domains. This behavior is indicative of a link farm or SEO spam tactic, likely intended to drive traffic to malicious sites or to obscure the true destination. The primary URL provided in the document body, 'http://dreamweaversoutlet.net/uploads/1/3/0/4/130491001/130491001.html#lg+inverter+direct+drive+washer+oe+error', suggests a lure related to appliance error codes. No scripts were extracted from this sample.

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.
  • 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://dreamweaversoutlet.net/uploads/1/3/0/4/130491001/130491001.html#lg+inverter+direct+drive+washer+oe+error PDF link annotation
    • http://creativecomputer.info/uploads/1/3/0/4/130483443/begulojabosop_nesugulajirawi_golupikixe.pdfIn PDF document text
    • http://natinelflowerslinensandrentals.com/uploads/1/3/0/7/130740123/ruxijat-numirevusiv.pdfIn PDF document text
    • http://contact.dng.ie/uploads/1/3/0/6/130604810/laramidakutam.pdfIn PDF document text
    • http://clearintel.org/uploads/1/3/0/7/130740596/58e0685.pdfIn PDF document text
    • http://sausalitomusic.com/uploads/1/3/1/4/131482988/f0fad1.pdfIn PDF document text
    • http://hotellable.com/uploads/1/3/0/6/130621857/witapokonabejer.pdfIn PDF document text
    • http://steveandtiffanyadopt.com/uploads/1/3/1/3/131380087/bexana_xeluxevabulan.pdfIn PDF document text
    • http://anaeugeniophotography.org/uploads/1/3/0/2/130288488/1766331.pdfIn PDF document text
    • http://andreandgretchen.com/uploads/1/3/0/4/130483510/zirujimikolupe.pdfIn PDF document text
    • http://b2funding.com/uploads/1/3/0/7/130738972/nopumebujodupef_nifuvaneve_suvuwulomi.pdfIn PDF document text
    • http://cynthiasuedeihl-butterworth.com/uploads/1/3/0/5/130543418/5670544.pdfIn PDF document text
    • http://agriturismocramaccioli.com/uploads/1/3/0/7/130740242/wiragixejusegasivoj.pdfIn PDF document text
    • http://artisanstory.com.au/uploads/1/3/0/8/130815351/vebubipilofaga_nanovezuzubun_pezavoj_zirapugutarawij.pdfIn PDF document text
    • http://maoridj.com/uploads/1/3/0/5/130590373/gapewajaxexoxani.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_off00009441.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9441 7696 bytes
SHA-256: 739b6923218d7196a73bbc8ea3dab9dbb0a4b63c7c46a93508099d8e98c15f84

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