Malicious PDF — malware analysis report

Static analysis result for SHA-256 1714b11b73513030…

MALICIOUS

PDF

94.1 KB Created: 2020-03-21 16:18:29 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 473b903877fbb117344c59c021f7bac3 SHA-1: 9203e85793c56e138613de53ddde58f3766b6e6d SHA-256: 1714b11b73513030016356ba26f0fc983c73a0595a8558216bf0be45ae14746e
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 are structured as PDF files, suggesting a link farm or redirection mechanism. The document body, though heavily obfuscated, contains a URL that appears to be a lure for 'The Lion King Jr.' script. The presence of many external links and the ML classifier's high confidence indicate a malicious intent to redirect users to potentially harmful content.

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://roadshowarchitects.com/uploads/1/3/0/2/130272070/130272070.html#the+lion+king+jr+full+script
    • http://healthexpressdelivery.com/uploads/1/3/0/6/130622084/2d27bc69.pdf
    • http://ausinko.com/uploads/1/3/0/9/130969176/bixidewula-vufoxore-tulikofavinupuj-bimog.pdf
    • http://evictwitherica.com/uploads/1/3/0/2/130287977/1734949.pdf
    • http://webdisk.elchristian.net/uploads/1/3/0/4/130488199/3716649.pdf
    • http://consulting.olivercaprile.com/uploads/1/3/0/3/130323199/fazekumevabev.pdf
    • http://starkvillepride.com/uploads/1/3/0/4/130483573/6896696.pdf
    • http://cancercoloring.com/uploads/1/3/0/4/130476984/fe1cd3.pdf
    • http://ikinsit.com/uploads/1/3/0/7/130775593/botubuv-nezedo-kezijanipagaku-dilenumarad.pdf
    • http://hifuckers.com/uploads/1/3/0/2/130289799/3196452.pdf
    • http://stardustmenu.com/uploads/1/3/0/5/130590555/xarijeva.pdf
    • http://www.alabbascookie.com/uploads/1/3/0/8/130813496/1405426.pdf
    • http://ncjoyofgarlic.com/uploads/1/3/0/3/130313314/biseramit-nuvirifamok-nawilotu.pdf
    • http://zoeporter.yoga/uploads/1/3/0/5/130550986/vobuwejapuso.pdf
    • http://nationalbeachranking.com/uploads/1/3/0/3/130323301/wojuzufewi.pdf
    • http://83rd-division-legacy.com/uploads/1/3/0/9/130969373/xetomex.pdf
    • http://piggeriesfurniture.com/uploads/1/3/0/8/130813652/134d6e2ff3.pdf
    • http://www.thegameinquisitor.com/uploads/1/3/0/5/130551299/bifunodofeze-guzuk-guwatotuma.pdf
    • http://education-cannabis.com/uploads/1/3/0/6/130639963/762fe69b8.pdf
    • http://dematic-university.com/uploads/1/3/0/3/130323754/0736bffb82b6d0.pdf
    • http://365christianyouth.com/uploads/1/3/0/7/130775782/e8da4e.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_off000147c1.bin
51b6e978145fb240f3f8bc95151dd399be2592636268cd59817da8b080767dd4
pdf-font-stream PDF embedded font (sfnt) at offset 0x147C1 8884 bytes