Malicious PDF — malware analysis report

Static analysis result for SHA-256 64297758e486273b…

MALICIOUS

PDF

81.1 KB Created: 2020-03-22 05:47:30 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6730c2f0282f745c23089a4bdddc74f9 SHA-1: 11521b0fa0283d7b46f25c289d07eb30fc88d8c2 SHA-256: 64297758e486273ba3bfe2b74b85a0bb8fcd25d404ea1644746ba85cf93a6fab
104 Risk Score

Malware Insights

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

This PDF document exhibits characteristics of a malicious lure, employing a link farm technique to disguise its true intent. The document body, though heavily obfuscated, contains a URL that appears to be a generator manual, likely a pretext to encourage user interaction. The presence of numerous external links, many pointing to PDF files with numeric slugs, strongly suggests a SEO poisoning or link farm attack. The ML classifier also flagged this PDF as malicious with high confidence.

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://rapidpermitreviewhawaii.com/uploads/1/3/0/9/130968972/130968972.html#homelite+hl4400+generator+manual
    • http://steimerroadproductions.com/uploads/1/3/0/9/130969497/zefufajusulew_sobefowoxu_nenidumejapudar_pulezagozu.pdf
    • http://www.bloomingu.org/uploads/1/3/0/5/130550931/jijewaduwa-dexuzom-mufogagebud-wavaj.pdf
    • http://abramsflooring.com/uploads/1/3/0/2/130291783/revifat_firezubupama_kafonefabuzobag_xumep.pdf
    • http://highestandbest.realestate/uploads/1/3/0/2/130274145/xamupexak-xivil-limufaxu.pdf
    • http://detectivesenaccion.com/uploads/1/3/0/3/130324351/konemakujulewerupuf.pdf
    • http://ahriasnapturalhairsolutions.com/uploads/1/3/1/0/131070791/zisavela.pdf
    • http://odazzitclub.com/uploads/1/3/0/6/130621893/788e039d1.pdf
    • http://hostmaster.westcoastvw.co.uk/uploads/1/3/0/2/130287919/df7b1e388.pdf
    • http://vortexbex.com/uploads/1/3/0/9/130969851/fb403e089.pdf
    • http://capitaosp.com/uploads/1/3/0/4/130435872/metepil.pdf
    • http://zackmazzoncini.com/uploads/1/3/0/6/130620659/lipigujel-pefatoferijavel-xoriwutazi.pdf
    • http://myanytime.com/uploads/1/3/1/0/131069863/1d5fe1a5.pdf
    • http://gardenviewsrealty.net/uploads/1/3/0/7/130740187/fuvoje.pdf
    • http://www.thoughtsandbolts.com/uploads/1/3/0/4/130435520/topiletogolud.pdf
    • http://primaris.net/uploads/1/3/0/2/130272880/wadanewazelof_selujitafav.pdf
    • http://hostmaster.dianefollowell.com/uploads/1/3/0/8/130813992/zefidefifinole.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_off00010d98.bin
d293a81ce52185f8bf415b8420910e8127f183d53cd3b25ada16aad05407fb52		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D98 11420 bytes

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