Malicious PDF — malware analysis report

Static analysis result for SHA-256 f14003766541e32e…

MALICIOUS

PDF

75.3 KB Created: 2021-03-21 02:08:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 4fcc57a1a09d7850db9dd99dc47926f9 SHA-1: 514328e89982bfc791870aab8cf6eb2ed004c733 SHA-256: f14003766541e32e4f14d943818726fc1a8cdca41d3537409b53e16b456e3b0a
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://botokaw.ru/wix?keyword=the+god+i+never+knew+book+pdf PDF link annotation
    • http://grizhoff.ru/439809165262ftqy.pdfIn PDF document text
    • http://gagogepatajebe.medianewsonline.com/applied_artificial_intelligence_mariya_yao.pdfIn PDF document text
    • https://miteviwu.weebly.com/uploads/1/3/6/0/136006965/pagibewarekadi.pdfIn PDF document text
    • http://verifiedbadges-form.com/firogodozuminukawepavewogban20.pdfIn PDF document text
    • https://funifagokose.weebly.com/uploads/1/3/2/6/132681236/95ea1ba211.pdfIn PDF document text
    • https://cdn.sqhk.co/guvawatuzax/ecfhajf/bum_bum_bole_dj_song_free.pdfIn PDF document text
    • http://dimopun.mywebcommunity.org/jenn_air_convection_oven_how_to_use.pdfIn PDF document text
    • https://cdn.sqhk.co/dodiniwotud/UlY9YTu/classic_arcade_games_tv_console.pdfIn PDF document text
    • http://kurametugugu.mygamesonline.org/96247983309.pdfIn PDF document text
    • https://gupufema.weebly.com/uploads/1/3/4/4/134456882/kozanivijanezegomi.pdfIn PDF document text
    • http://nncucuucuc.space/17662184205rblf9.pdfIn PDF document text
    • https://towipikegogu.weebly.com/uploads/1/3/4/6/134690187/8617932.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jowosos.myartsonline.com/lawene.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82d01926-8528-4599-8d41-fe4f083b8ff0/how_to_pair_altec_lansing_life_jacket.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2e9bec6-694c-4ffd-8a8e-5c6c7e045dca/vishnu_sahasranamam_translation_in_tamil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11ca1b8b-c658-4b3e-981d-1827c5820bfe/74572985452.pdfIn PDF document text
    • http://nixomirorubu.myartsonline.com/lagexokofofenidovapegulo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed9aec7f-8282-4e04-bd85-83385da4c2bf/motorola_bluetooth_headset_h720_manual.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e7f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7F7 5188 bytes
SHA-256: 083a0edde135c631261b5c98f8fcae6b93f53232e5909221595c151fec0127de
font_01_sfnt_off0000f9b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9B0 11180 bytes
SHA-256: 57cf7677b62fe05df6acdca41a53ffdb46c88882fb58501f238c242cab0026a0

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