Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e4104b85c747c04…

MALICIOUS

PDF

84.1 KB Created: 2021-03-26 04:20:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 08d84f83a77d64bb143fa2a47cf82d8b SHA-1: e9768b24d9fb7d8112334c31f2fcb964b661f5b6 SHA-256: 8e4104b85c747c04d7888345bf8953e49a48a59bdf79b19acd0e53072739ad53
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://xezojetit.ru/wix?keyword=hollywood+dual+audio+hd+movies+download+from+moviemad PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4426690/normal_602f0099b5132.pdfIn PDF document text
    • https://cdn.sqhk.co/vabolepibe/ehghbii/nature_sounds_app_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370780/normal_60371aa0aa499.pdfIn PDF document text
    • https://cdn.sqhk.co/pidodalatip/ieicvid/ice_cream_rolls_youtube_face.pdfIn PDF document text
    • http://dvertsoff.ru/77609753338i04k5.pdfIn PDF document text
    • http://mabay.fun/199935928076suw1.pdfIn PDF document text
    • https://kevavabine.weebly.com/uploads/1/3/1/4/131406582/zusasarofaxu-firojode.pdfIn PDF document text
    • http://fringigejy.site/rorty_achieving_our_countryw5hbx.pdfIn PDF document text
    • https://manatelagaren.weebly.com/uploads/1/3/1/4/131437493/57861.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/16029332619.pdfIn PDF document text
    • https://s3.amazonaws.com/xonobijikivo/surah_mulk_with_urdu_translation_mp3_qari_sudais.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5be6dd5a-af47-46a7-850a-08a85c724f9e/is_motorola_sb6141_compatible_with_xfinity.pdfIn PDF document text
    • https://s3.amazonaws.com/tikoweravisixu/auto_id_card_format.pdfIn PDF document text
    • https://s3.amazonaws.com/fajonubinomeder/definite_and_indefinite_articles_worksheets_spanish.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b78f0380-1178-4671-a5ea-13534934d63a/fevujapabinaje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f44a73ad-a5df-4fe4-9bc8-dafb803df0df/10926047901.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f693.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF693 3764 bytes
SHA-256: 06fc8e2bf1ea809daf86ef5bbf9ebd8df0fa33004ce9784c5996d60621c42f3e
font_01_sfnt_off0001059c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1059C 5360 bytes
SHA-256: 3933cb1f84095b4eea3fb38751f6287af3ebbd64fe4c6c37eb3e0bdbb6ab8f12
font_02_sfnt_off000117c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117C9 12696 bytes
SHA-256: 6227c54e1594ebd32f2ce633527a876052c3e5bd9d1c944b37c8d172317620dc

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