Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e7367d3c0920ca1…

MALICIOUS

PDF

78.1 KB Created: 2021-09-11 22:10:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 5c2f89b97ae1f42c9185798a0f86b135 SHA-1: 060330b14aa8e2989651c1dacf310dcb29f623b8 SHA-256: 2e7367d3c0920ca1d072cb7040b4bfdc47e44efb17d418fec731c1a9fdca2574
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' suggests the document is designed to host numerous links on disposable domains, likely to distribute malware or facilitate phishing. The embedded URL 'https://nomylo.ru/uplcv?utm_term=download+battle+cats+mod+apk' further supports this, indicating a lure for downloading software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://nomylo.ru/uplcv?utm_term=download+battle+cats+mod+apk PDF link annotation
    • http://benedictinoselrosal.org/ckfinder/userfiles/files/wipanetesipazu.pdfIn PDF document text
    • https://safecampus.in/cmsCart/upload/file/45236676950.pdfIn PDF document text
    • https://printjet.pl/pliki_user/File/11999604920.pdfIn PDF document text
    • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613203432025f---rukomixizob.pdfIn PDF document text
    • http://augustaelectricalwork.com/editorData/file/15307920912.pdfIn PDF document text
    • http://billsky.ee/files/file/terapukefo.pdfIn PDF document text
    • https://conviviodihera.it/dati/upload/file/fuwifig.pdfIn PDF document text
    • https://maggievanostrand.com/uploads/media/file/1597780651.pdfIn PDF document text
    • http://3q1p.com/upload/file/2109080205014782524pajs0mwbnmf.pdfIn PDF document text
    • https://km2804.com/ckupload/files/1960292438.pdfIn PDF document text
    • http://sanalights.com/admin/admin/uploadfiles/file/zuzoxuvar.pdfIn PDF document text
    • http://korealabels.com/ckfinder/userfiles/files/galarigaduti.pdfIn PDF document text
    • http://mensagemcrista.com.br/ckfinder/userfiles/files/mikufobozibipusuwogugoped.pdfIn PDF document text
    • http://hoangle.vn/uploads/userfiles/file/jakisevar.pdfIn PDF document text
    • http://ehoron21.mn/uploads/files/rewisorivan.pdfIn PDF document text
    • https://cristalparkhotel.com/ckfinder/userfiles/files/11984295463.pdfIn PDF document text
    • http://hasyo.net/files/file/46833361813.pdfIn PDF document text
    • http://cl-metalparts.com/d/files/livasuzez.pdfIn PDF document text
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135818848c52---rifuxenexulubegitobol.pdfIn PDF document text
    • http://goodwill.pl/userfiles/file/tezerajow.pdfIn PDF document text
    • http://mcutech.net/upload/2021/09/file/1631011614918072390.pdfIn PDF document text
    • http://gift-founder.com/archive/upload/files/dobisipivoxonexumatagaf.pdfIn PDF document text
    • http://darstin.com/userfiles/files/20592261274.pdfIn PDF document text
    • https://yaslibakicisi.net/userfiles/file/70272562468.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD17 10800 bytes
SHA-256: 230866385d21d1147da8b50fd89eb8fff33bc44432edc73302cab1623baefc74
font_01_sfnt_off0000e5d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5D3 17460 bytes
SHA-256: 60d75e42bab72d0547fd42aaeecc9dc23f5a06d4f3bc195d684d819df4d3e974
font_02_sfnt_off0001131d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1131D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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