Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a910b6eaf592d4d…

MALICIOUS

PDF

80.9 KB Created: 2021-02-18 02:45:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: cf7ced372bec38e0e9c3543e18e09ec4 SHA-1: 15a8a0497c51dff8b7719bdad3fd2af94d4d521d SHA-256: 2a910b6eaf592d4d9e39e0bdb52f3a7bb96338b877204079554bb53a1cc79a45
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm. It contains numerous external links, including one pointing to `https://baarspo.ru/wix?keyword=boy%2527s+life+pdf`, likely intended to redirect users to malicious content. The PDF structure and embedded links suggest an attempt to exploit users through deceptive content, potentially leading to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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 https://baarspo.ru/wix?keyword=boy%2527s+life+pdf PDF link annotation
    • https://cdn.sqhk.co/fujotojaxob/ieaSuhe/94839292750.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500904/normal_5fd7885cdf6d6.pdfIn PDF document text
    • https://cdn.sqhk.co/nilofixogezu/ggiYig0/musica_italiana_instrumental_mp3_download.pdfIn PDF document text
    • https://sujosajuzatitoz.weebly.com/uploads/1/3/5/3/135312362/bilisemegevi.pdfIn PDF document text
    • https://cdn.sqhk.co/jolodovi/hibjf61/viwefusefaxewulasunaveti.pdfIn PDF document text
    • https://cdn.sqhk.co/wekaradukuve/LjhNQmb/71146567040.pdfIn PDF document text
    • https://cdn.sqhk.co/samekikogeri/IhggLge/bollywood_songs_2020_download_mr_jatt.pdfIn PDF document text
    • https://cdn.sqhk.co/besuduxikuvo/hbife7T/brach_s_fruit_slices_gluten_free.pdfIn PDF document text
    • https://cdn.sqhk.co/wukiratuxazo/mwEhcEY/95297863606.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nijudow/crazy_frog_dance_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/jitimesolagun/682622953.pdfIn PDF document text
    • https://s3.amazonaws.com/metubevozisul/whale_gusher_30_manual_bilge_pump.pdfIn PDF document text
    • https://s3.amazonaws.com/novifamigot/compteur_synchrone_bascule_jk.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001039f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1039F 4912 bytes
SHA-256: 7430f7ee60174a3fb5547c207d5fe9b1794ef297ed19404d662b41bd6d192925
font_01_sfnt_off00011488.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11488 10032 bytes
SHA-256: 4c4a1320f5bbbdce69d55b664e8061c438072cdefa0bce93bf1578afaf3dac40

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