Malicious PDF — malware analysis report

Static analysis result for SHA-256 53a6d54d72a2c0c1…

MALICIOUS

PDF

75.0 KB Created: 2021-03-11 17:22:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 6bd09b7b47ae6986f55c2f9a4f84b3e8 SHA-1: b298e19dd62a273e1627ea9038e114b1ec3dd20c SHA-256: 53a6d54d72a2c0c1983c8e22b3a33471685a4dda610b00c83ee8fbc7b9d27898
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a phishing or trojan distribution attempt. It contains numerous external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to malicious content. The document body, though heavily obfuscated, appears to be a lure related to technical drawings, likely to trick users into clicking the embedded URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://lozipotod.ru/award?keyword=car+engine+parts+drawings+with+dimensions+pdf PDF link annotation
    • http://memowelubi.mygamesonline.org/rududipavurizagabale.pdfIn PDF document text
    • http://wiwajekirutiw.scienceontheweb.net/lobiraribixefe.pdfIn PDF document text
    • https://pefizisiguxuv.weebly.com/uploads/1/3/1/4/131438819/bomuzidisarijaverud.pdfIn PDF document text
    • https://cdn.sqhk.co/dakizenewa/jihhgh4/cooking_fever_game_free_download_for_android.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493600/normal_602f5335c7feb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478703/normal_5feb3be18c5cf.pdfIn PDF document text
    • https://vinetiwufo.weebly.com/uploads/1/3/5/3/135305890/feferubulofoma-nawuzo-wevomesutok-xepabun.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366381/normal_5fc6913aad421.pdfIn PDF document text
    • https://tisudarolajese.weebly.com/uploads/1/3/0/8/130813738/pawofobitogi-jesat-vovat-novul.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454164/normal_60374aefe3ac1.pdfIn PDF document text
    • http://pofaduxiruk.getenjoyment.net/lapesebuzilalem.pdfIn PDF document text
    • https://cdn.sqhk.co/gujowaxexag/hxlu8Bn/10452727020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406166/normal_6009ec36bc42d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460723/normal_5fd77f19d7004.pdfIn PDF document text
    • https://wobakasufafe.weebly.com/uploads/1/3/2/6/132682589/7f598fe.pdfIn PDF document text
    • http://jomikifu.medianewsonline.com/oracle_12c_sql_fundamentals_download.pdfIn PDF document text
    • https://cdn.sqhk.co/fegujajox/ihihhif/cross_fight_undertale.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368496/normal_5fe16a7c3a092.pdfIn PDF document text
    • https://cdn.sqhk.co/sofizagumup/cphhdLf/babylon_bee_headlines.pdfIn PDF document text
    • https://cdn.sqhk.co/lazodadevab/iiiiaic/donososo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486550/normal_600a157ab5f4f.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/sojaxub/10831450373.pdfIn PDF document text
    • https://s3.amazonaws.com/wutogugej/66932668492.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_off0000e86a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE86A 5420 bytes
SHA-256: bd114656f7698fc968fc5ba5859b3804477c46702a05cabd5c562bf3f1ab72c8
font_01_sfnt_off0000fac2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAC2 10448 bytes
SHA-256: 9fd9978c67ac324c4bb75686709e31c5a3c528b09467bdcca48886685660376d

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