Malicious PDF — malware analysis report

Static analysis result for SHA-256 41da1a02c6947619…

MALICIOUS

PDF

82.5 KB Created: 2021-03-18 23:05:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 7b91311a148682d774d0dff3f85e16ad SHA-1: b3ac02d5cda0205e328a537de110fbae746b46e7 SHA-256: 41da1a02c6947619ef8f131c32668fa4351851df77f6c0cafff06cc94875e7b0
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains heuristics indicating it is a phishing lure, specifically using an image to redirect users to a URL that promises a full movie download. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded URLs point to suspicious domains, likely serving further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://seumenha.ru/strik?utm_term=pers%25C3%25A9polis+pelicula+completa+en+espa%25C3%25B1ol+latino PDF link annotation
    • http://ersoil.fun/dozawedoxosigadirunigaz7mrfr.pdfIn PDF document text
    • http://dvestideyli.xyz/jilomefasekk9sc0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365582/normal_5fd8a26f394d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387241/normal_602c327514c69.pdfIn PDF document text
    • http://converstarget.ru/payaliya_bajni_lado_piya_song_audioqcmbo.pdfIn PDF document text
    • https://cdn.sqhk.co/woselukafo/ftje6TV/sms_ringtone_song_mp3.pdfIn PDF document text
    • http://igclienteam.com/db_power_ip_camera_software_download9gurz.pdfIn PDF document text
    • http://goloturasituj.66ghz.com/vaxikiluzur.pdfIn PDF document text
    • http://omoikiri.info/business_proposal_letter_email_format9xmrg.pdfIn PDF document text
    • http://pmaider.com/54950966560hcz5r.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385412/normal_5fc9394d42156.pdfIn PDF document text
    • https://cdn.sqhk.co/feguzuvubut/gjRbzib/flying_flappy_bird_apk_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450040/normal_60355e22d8fa4.pdfIn PDF document text
    • http://tertov.xyz/illuminated_manuscript_letters_printableoyyco.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/lemefofutomapox/rockyou._txt._bz2_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/95397962253.pdfIn PDF document text
    • http://vufuditot.rf.gd/best_single_deck_blackjack_strategy.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/what_are_the_examples_of_foodborne_diseases.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/34607190396.pdfIn PDF document text
    • http://sowujakuje.rf.gd/state_newtons_universal_law_of_gravitation.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e37a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE37A 6440 bytes
SHA-256: 3d4760ca295192c89086870ebbac49c5a5945404ea6ab57fca452cf2db5f569a
font_01_sfnt_off0000f36e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF36E 5432 bytes
SHA-256: 848eedbc428ece02f84bc82a991ed822651ee9e704c4f30091b948eb4f9c0ddc
font_02_sfnt_off00010542.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10542 1716 bytes
SHA-256: 7314a8110a688275e79cb4cd5cd058a9f858becaa7f01fde0a687197ddc85302
font_03_sfnt_off00010dcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DCD 13808 bytes
SHA-256: bc6ab9e442c573d6f72b8d03fdfe2b125d236b0a7d6b0e91ad871fcfac634aba

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