Malicious PDF — malware analysis report

Static analysis result for SHA-256 937fab80086ad383…

MALICIOUS

PDF

70.9 KB Created: 2021-03-01 11:17:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 907eb138cfe9664b3113bcc48e086226 SHA-1: 408ed4330da9831503945afeea8ebdfa14421446 SHA-256: 937fab80086ad3833b9ba50aea9a3a1f2e8fa55f05e8e263601373fb722f0701
126 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs pointing to disposable domains, a common tactic for phishing or malware distribution. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically flags the document as a link farm on disposable hosting, further supporting the phishing or malware lure pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9658

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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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://soxebez.ru/award?keyword=gramos+de+harina+a+mililitros PDF link annotation
    • https://wimafepe.weebly.com/uploads/1/3/5/3/135326366/mumirojuvete.pdfIn PDF document text
    • http://ogranicbio.space/208950630598fak9.pdfIn PDF document text
    • http://pefiworawodud.mypressonline.com/11775731994.pdfIn PDF document text
    • https://sawuzirerepobod.weebly.com/uploads/1/3/4/0/134040369/4701007.pdfIn PDF document text
    • http://poxumanavofeboz.scienceontheweb.net/48917388927.pdfIn PDF document text
    • http://immortal-sho.club/ikea_uk_catalogue_2018s8wxf.pdfIn PDF document text
    • http://metoxegid.mygamesonline.org/10896023846.pdfIn PDF document text
    • http://dommasters.site/hemophilia_a_treatment_guidelinehfd2j.pdfIn PDF document text
    • http://citruss.space/33219511902n99wg.pdfIn PDF document text
    • http://fabulouss.space/luzajewofifavupefv7vig.pdfIn PDF document text
    • http://gemubanabugawa.mypressonline.com/ruin_and_rising_read_online.pdfIn PDF document text
    • https://tazabojadikeze.weebly.com/uploads/1/3/4/6/134648043/df214.pdfIn PDF document text
    • http://rocketdocs.us/natakekexutolepesimvroaj.pdfIn PDF document text
    • http://gladkoe-telo.xyz/tebijiwonawarezoravz1z1t.pdfIn PDF document text
    • http://stassikorskyi.com/best_free_multiplayer_games_on_steam_2019v20qv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://porilebunenagu.rf.gd/shiva_cartoon_full_hd_movie.pdfIn PDF document text
    • http://fuvarijes.atwebpages.com/44217683520.pdfIn PDF document text
    • http://viwuwijagabote.myartsonline.com/lijazivopowat.pdfIn 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_off0000db16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB16 5096 bytes
SHA-256: 261617e4e7350491c90862b711ec90d0c34b5d5c7cb1827675c1caf736a4ed5d
font_01_sfnt_off0000ec39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC39 14844 bytes
SHA-256: 43069b89bd387e76cb3ced9d92ad21645d323f60dd0f35db8454e3f075925acd