Malicious PDF — malware analysis report

Static analysis result for SHA-256 4969a29c711604ed…

MALICIOUS

PDF

73.8 KB Created: 2021-06-13 04:42:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f12a056b204e9ad27fa20c342f6a269e SHA-1: 7998be4602ca3bcb7464927187996664c4050f40 SHA-256: 4969a29c711604edeffac08991e724f6fec471a5d6d18f947da2849035f065ea
156 Risk Score

Malware Insights

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

This PDF document is identified as malicious by ML classifiers and ClamAV, indicating it is a phishing or trojan delivery mechanism. It contains numerous links to external websites, many hosted on compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The document body, though heavily obfuscated, contains text related to 'free followers likes', a common lure for social engineering attacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://catamma.ru/uplcv?utm_term=get+free+real+followers+likes+v3
    • https://law.myvzl.com/wp-content/plugins/super-forms/uploads/php/files/l9e93st9s0rhmt8s0vth7db9tr/89440484189.pdf
    • http://www.clc-engineering.com/siteuploads/editorimg/file/xijepasamasik.pdf
    • http://euro-ex.com/images/blog//file/butusezuwoj.pdf
    • https://movesforfree.com/wp-content/plugins/super-forms/uploads/php/files/d7epu564vat0129lvekia6pjk0/89358467307.pdf
    • http://sola-brothers.com/userfiles/file/57719030095.pdf
    • https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/914iq09ujno3eidj4lmpmp5okv/fidijagifawup.pdf
    • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608febdcb2cce---wemukovefidomujafajom.pdf
    • https://nowbali.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/160887b1e10636---91967482142.pdf
    • http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ac1bd78aa2---bogoboruw.pdf
    • http://redwoodpwr.com/wp-content/plugins/super-forms/uploads/php/files/45dicbfkker8e2bofqk0uk1rm4/xonekaneninasibabi.pdf
    • https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085a138a5e5f---95816714324.pdf
    • https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160bd85d1d9dee---tatoropuralilif.pdf
    • https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/1b197e6950eea6b2efdaaf8965f9610c/24612081831.pdf
    • https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/72f65c944d1ce15644e3e5201643dc64/49274219798.pdf
    • https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/9ggc2t361ld0d4scocefb1ep4k/72104382669.pdf
    • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/212790e9287a46cae81edc47908ad112/dexuwasafumalizev.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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_off0000dda9.bin
1281dedeede56c3a3f02ac2de42f3531f1445b564a9f5a6e5aefb9dbafd6726c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDDA9 5172 bytes
font_01_sfnt_off0000ef76.bin
62a2e81bf101b51529f7b79540e1e56083494edc9ed2d6a03c87e5a8e0ddd1d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF76 12680 bytes

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