Malicious PDF — malware analysis report

Static analysis result for SHA-256 f927f7e867361ebf…

MALICIOUS

PDF

68.6 KB Created: 2021-02-28 10:56:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 10b1393dd7dc8427da51219dbd6e4b07 SHA-1: 360037f1303fafe4a6eec7992ff84a0cf55c0bc1 SHA-256: f927f7e867361ebf64d8d1d8d0da99989922e12ed179af643a730b8db8c7a1d4
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including ML and ClamAV, as malicious. It contains numerous external URIs, many of which point to disposable hosting or link farms, suggesting a phishing or malware distribution attempt. The presence of embedded URLs and the ML classification strongly indicate malicious intent.

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 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://xajibur.ru/123?utm_term=panasonic+the+genius+sensor+1250w+parts PDF link annotation
    • https://cdn.sqhk.co/derepinejabi/jiijgjd/texas_tech_tour_guide.pdfIn PDF document text
    • https://latafixewikokaj.weebly.com/uploads/1/3/4/6/134687196/8154558.pdfIn PDF document text
    • http://mesanezedid.mypressonline.com/21774235981.pdfIn PDF document text
    • https://pugotaba.weebly.com/uploads/1/3/5/3/135302821/15a57316d.pdfIn PDF document text
    • https://vevikonupefafo.weebly.com/uploads/1/3/5/3/135391347/nobaluvojipa.pdfIn PDF document text
    • http://rubewox.sportsontheweb.net/what_is_the_type_of_economy_does_japan_have.pdfIn PDF document text
    • http://klokisik.space/is_magic_tree_house_science_fictionwxdgz.pdfIn PDF document text
    • https://nugobobunebiset.weebly.com/uploads/1/3/5/3/135303429/xabutomij-limezeruli-divavigilume-wajumawome.pdfIn PDF document text
    • http://busivel.xyz/376350042777hzdj.pdfIn PDF document text
    • https://cdn.sqhk.co/togokitaz/c9jhagd/fastlane_road_to_revenge_hack_mod_apk_download.pdfIn PDF document text
    • http://tuxesimufimiti.mypressonline.com/36364215162.pdfIn PDF document text
    • https://cdn.sqhk.co/rajunakeb/KzApehe/likee_online_photo_editor.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sasukagisodubex.onlinewebshop.net/76390424705.pdfIn PDF document text
    • https://s3.amazonaws.com/jejulurowev/bareilly_ki_barfi_full_movie_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/neviwove/18857264353.pdfIn PDF document text
    • https://s3.amazonaws.com/fobupojowojon/bible_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/towakog/3d_backgrounds_for_photoshop_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wifukedot/amablesser_music_video_free.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_off0000ccb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCB1 5708 bytes
SHA-256: 22a194106d2ac2885783288d59c8229cc24efe548975742d409b27d4a6a0cbfc
font_01_sfnt_off0000e035.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE035 10456 bytes
SHA-256: e7e22f46ff5f0b9c65fb1f105d570babf928e39e700d193e3859ab45061f8431

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