Malicious PDF — malware analysis report

Static analysis result for SHA-256 884af9265a29554e…

MALICIOUS

PDF

79.6 KB Created: 2021-01-25 00:45:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 0b5eee85501c3337b15cb61ae66c2ecc SHA-1: 9082bf7a9f9760a6e052915c9829a8fb82cb3f6c SHA-256: 884af9265a29554ea26b8988119a28a04230c15d2aa2886830aa58c9a6dd050f
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains a large number of external links, many pointing to potentially malicious domains, suggesting a link farm or phishing attempt. The embedded URLs and the heuristic 'PDF_SEO_LINK_FARM' indicate the primary goal is to redirect users to external sites, likely for credential harvesting or malware delivery.

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://traffset.ru/123?utm_term=love+nikki+quiz+on+miraland+answers+2018 PDF link annotation
    • https://zojufagilazit.weebly.com/uploads/1/3/0/9/130969654/pabemifugifov.pdfIn PDF document text
    • https://zugimawaxudal.weebly.com/uploads/1/3/1/4/131410952/8224454.pdfIn PDF document text
    • https://muvesajaduxu.weebly.com/uploads/1/3/4/0/134012660/tegufekire-wagekikogilutip-zemitikitito-gegorigusabi.pdfIn PDF document text
    • https://gikanirirexenad.weebly.com/uploads/1/3/0/7/130776133/limukoxojogoju_pobonawetaje.pdfIn PDF document text
    • https://tuxupurevulivi.weebly.com/uploads/1/3/0/8/130813143/zajofibuja-wawetebi-bevepeko.pdfIn PDF document text
    • http://erogan-oficial.site/pictoword_level_93_answer_keyo5r8b.pdfIn PDF document text
    • http://mpvideo.org/degaxisewawexiqa2j2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://disofebuwugojuj.epizy.com/alcatel_one_touch_4015d_firmware.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/wedding_invitation_card_design_template.pdfIn PDF document text
    • https://s3.amazonaws.com/kokesatodixon/95551987626.pdfIn PDF document text
    • https://s3.amazonaws.com/mafavuzenoliki/sync_contacts_android_gmail_not_working.pdfIn PDF document text
    • https://s3.amazonaws.com/xaliwalufoguni/mikogu.pdfIn PDF document text
    • http://sezesub.epizy.com/53561908606.pdfIn PDF document text
    • http://zaximibirada.epizy.com/27709735358.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/92135845468.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_off0000f8fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8FC 5824 bytes
SHA-256: e136cb229ae0a022da0ba510830e30d5c29e35d8f03285428dcc84bbc9dae0e8
font_01_sfnt_off00010cd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CD9 10756 bytes
SHA-256: 8f60d21b2482c05d404a89ec7382f26acc74f80789088cd0b465cd410189be1a

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