Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa065176faccda17…

MALICIOUS

PDF

79.9 KB Created: 2021-02-21 14:15:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c6f7d97dc77524e66bf52e3ccbc452c SHA-1: 2e84edf19534696653bed2a99cddec48a3bb1311 SHA-256: aa065176faccda17ca8bf462f193fc9100ce8ece5c89d1a7186f220879dee097
156 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_SEO_LINK_FARM, indicating it is part of a link farm with numerous external PDF links, and a PDF_URI pointing to a URL related to hacking Minecraft. The ML classifier and ClamAV also flagged this as malicious, specifically as a phishing trojan. The document body, though heavily obfuscated, contains text related to the search query, reinforcing the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 https://maypoin.ru/wix?keyword=how+to+hack+minecraft+pocket+edition+ipad
    • https://static.s123-cdn-static.com/uploads/4496204/normal_5fec68ac84157.pdf
    • http://sdfsdfsdf.shaketorch.com/wavatijituwasunitodebitev.pdf
    • https://moxamegok.weebly.com/uploads/1/3/3/9/133999551/4136350.pdf
    • https://jorevubo.weebly.com/uploads/1/3/4/8/134869484/muliz-wonirira.pdf
    • http://iranomics.com/the_dictator_netflix_countryddpui.pdf
    • https://fuvobavan.weebly.com/uploads/1/3/1/6/131637325/litagavarema.pdf
    • https://cdn.sqhk.co/mirofifuba/8nkhi4E/entrepreneur_quotes_goodreads.pdf
    • https://cdn-cms.f-static.net/uploads/4459341/normal_6030ed61a212b.pdf
    • http://luzikudejijes.22web.org/vujezemaluson.pdf
    • https://sebazolilerop.weebly.com/uploads/1/3/0/8/130874482/3326829.pdf
    • http://mixed-rootwork.com/11181916630uu4t0.pdf
    • https://walazufa.weebly.com/uploads/1/3/1/3/131383665/3956087.pdf
    • https://cdn.sqhk.co/muribirigim/jEetxhg/pizza_chef_quechee_mini_golf.pdf
    • http://hotel-engels.ru/52140319346r3610.pdf
    • https://wumupokurura.weebly.com/uploads/1/3/0/7/130776197/jefeduwemikijuzojo.pdf
    • http://lg-copyrightforms.com/767005744475bybg.pdf
    • https://static.s123-cdn-static.com/uploads/4457561/normal_5ffdc7ca82460.pdf
    • https://kabudinikibe.weebly.com/uploads/1/3/4/7/134716255/7b6feb.pdf
    • https://cdn.sqhk.co/xewebevij/hftNThh/international_day_of_peace_activities_ks2.pdf
    • https://cdn-cms.f-static.net/uploads/4416510/normal_603204cfa956e.pdf
    • https://cdn.sqhk.co/jadidawa/KSfkijj/robert_frost_fire_and_ice_interpretation.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://gonesipida.epizy.com/nike_air_force_1_low_white_black_sole.pdf
    • http://bomepexajusopa.epizy.com/free_google_chrome_browser_for_pc.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f8f8.bin
d35ed6699b4ac6d13d227b7811bd594b6c5ee50680d4a5e4fa9663e87d56086c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF8F8 5304 bytes
font_01_sfnt_off00010aea.bin
178e5912b9c194117de9eba7948bd92c67ba8792edfefe25ebf2eca3eaa9af99		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10AEA 12072 bytes

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