Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae92cbcf65b8bd76…

MALICIOUS

PDF

76.7 KB Created: 2021-03-14 13:39:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d15c5f57d7f4fe41f5c0a81d38a46722 SHA-1: 5c2043511eb83a6cc37190d9d6111bdc2578810c SHA-256: ae92cbcf65b8bd76c1b077f5970d1f1748cd20b38a315304811b4dacb3ab8bbb
156 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a large number of external links, suggesting it is part of a link farm designed to direct users to malicious or scam websites. The embedded URLs and the document's apparent theme of 'softmod wii u without game' point towards a phishing or scamming attempt.

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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://leonvi.ru/wix?keyword=softmod+wii+u+without+game
    • http://puralivivupose.iblogger.org/luwemo.pdf
    • https://dujeranisijoku.weebly.com/uploads/1/3/0/7/130776063/tafuneluxujuratas.pdf
    • https://cdn-cms.f-static.net/uploads/4502817/normal_604345398729f.pdf
    • https://static.s123-cdn-static.com/uploads/4443810/normal_5fef6ea44d957.pdf
    • https://static.s123-cdn-static.com/uploads/4405194/normal_5fde15484d2a0.pdf
    • https://vojimefijizudi.weebly.com/uploads/1/3/4/3/134310580/efac5c.pdf
    • https://static.s123-cdn-static.com/uploads/4493597/normal_5fde82a814238.pdf
    • https://tediresul.weebly.com/uploads/1/3/5/3/135345321/lagalujirutemarer.pdf
    • https://static.s123-cdn-static.com/uploads/4465930/normal_5ff33a22662af.pdf
    • https://cdn-cms.f-static.net/uploads/4391317/normal_60136dc26717b.pdf
    • https://static.s123-cdn-static.com/uploads/4475562/normal_5febce04d045c.pdf
    • https://static.s123-cdn-static.com/uploads/4377679/normal_5fc6f13402a3b.pdf
    • https://static.s123-cdn-static.com/uploads/4392857/normal_5ff068960feac.pdf
    • https://karimimeri.weebly.com/uploads/1/3/1/1/131164281/ropudosisupiwuw.pdf
    • https://cdn-cms.f-static.net/uploads/4412170/normal_60153edb3b32f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://megutid.epizy.com/million_dollar_habits_stellan_moreira_free_download.pdf
    • https://s3.amazonaws.com/pexodugosa/13427040088.pdf
    • http://fujebudavitasoz.epizy.com/zipelejuzukosixumuxak.pdf
    • https://s3.amazonaws.com/mulerux/84363641004.pdf
    • http://setowibuvi.epizy.com/kusuvu.pdf
    • http://kiwasebax.epizy.com/rupenolaxedofa.pdf
    • http://xovijoj.epizy.com/rivuposonulawuxo.pdf
    • http://wiroxidimov.rf.gd/what_is_the_timeline_of_civilization.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_off0000efcd.bin
b306d11ba63cf5860c6eaf9f7e2cd950075682bae2cd352c1b783506cb172f39		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEFCD 5208 bytes
font_01_sfnt_off00010176.bin
058893d428fc36c8efa2c200756591ee753b7c2fc01a57c6ddae8cf75d85705a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10176 10488 bytes

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