Malicious PDF — malware analysis report

Static analysis result for SHA-256 6709809fad4b76d0…

MALICIOUS

PDF

68.9 KB Created: 2021-02-14 00:00:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 6f9f693c79c4b38814d7bac02a54c625 SHA-1: dc561719912a6e09a77a43b1dec77c9538ba3438 SHA-256: 6709809fad4b76d060209675e991e54eb7882252b32189cb619a6cadcf1bd7fe
184 Risk Score

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=shadowverse+take+two+guide+2020 In PDF document text
    • http://superheatbelt.xyz/vpn_for_pc_unblocked762mq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482230/normal_5fcc9d518d9bf.pdfIn PDF document text
    • http://dfwshootersupply.com/empires_puzzles_epic_match_3_apk9wy4c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415768/normal_601608b752376.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420448/normal_5fe833a8749a6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475216/normal_5ffaa792099d7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453334/normal_5fefc83b16436.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374688/normal_5fd6a592987f8.pdfIn PDF document text
    • http://tehnotop.site/pirate_kings_one_pieceux4yf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489852/normal_6018fc01e885b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482848/normal_5fe787e5ae07a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446502/normal_60034ca544fdb.pdfIn PDF document text
    • http://reduslim-siteofficial.site/gafomasitesaraxumodoafyly.pdfIn PDF document text
    • http://yognat.space/14053626021f3z3n.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/tawosutosuxi/wimemo.pdfIn PDF document text
    • http://suxivivuvadife.rf.gd/febrile_seizure_treatment_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/gapuruxumeg/free_music_albums_sites.pdfIn PDF document text
    • https://s3.amazonaws.com/tanapilamaxi/gopufu.pdfIn PDF document text
    • http://morufigalolo.rf.gd/bhartiya_naa_songs.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c8bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8BD 5648 bytes
SHA-256: 49aafd8a8d0ee259b19b4fff18c0fe9a9326fc1ea1135e7a00edd0d9e48b1a9c
font_01_sfnt_off0000dbfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBFE 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off0000e48a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE48A 9884 bytes
SHA-256: fcd07de1d88f278155c209ca9c50356947d9686e7abaf3b69c40e862acdb85a8

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