Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb6f786dc096369a…

MALICIOUS

PDF

79.8 KB Created: 2021-04-02 06:16:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e4484a94f288101ab71bf7b1e453d01d SHA-1: 13c5eac3173a7f5edb9210f59c4fc8c4d9bd66cd SHA-256: eb6f786dc096369a797614ac1e64f3179494d55677119ace114757011c529bde
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs to a suspicious domain, identified by heuristics as a potential phishing or malware distribution lure. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ponafet.ru/strik?utm_term=yamaha+moto+4+350+top+speed
    • https://cdn.sqhk.co/metexemoraga/b1gcrgj/teppanyaki_chicken_yakisoba.pdf
    • http://kutatit.getenjoyment.net/dibujos_para_colorear_animales.pdf
    • http://bobixina.getenjoyment.net/how_do_i_stop_my_sharp_microwave_from_beeping.pdf
    • https://cdn.sqhk.co/seworani/jckgghj/nidovojixixinawove.pdf
    • http://wimesuzajomos.mypressonline.com/uniformly_accelerated_motion_along_straight_line.pdf
    • http://instapresent.site/99684413231jh4cz.pdf
    • http://vobigivu.22web.org/dulitimobelu.pdf
    • https://cdn.sqhk.co/nomitusibop/hijjaha/10516363571.pdf
    • http://vvinorama.website/how_to_write_bff_in_plural5oumf.pdf
    • http://zobotalemogi.sportsontheweb.net/vatidebogidosupojul.pdf
    • http://community-day.ru/fishman_aura_reviewvwz9y.pdf
    • http://likedizar.medianewsonline.com/pt6a-11_overhaul_cost.pdf
    • http://japancar-sib.ru/zulisafagaduxepupizowofdt069.pdf
    • https://cdn.sqhk.co/xogedusov/fii9Yid/this_means_war_gospel_song_chords.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zadukuviro.rf.gd/zafumipuxo.pdf
    • http://xagivetiji.epizy.com/ipod_touch_5th_generation_amazon_music.pdf
    • http://xefejada.epizy.com/38192524967.pdf
    • https://6cdb29d4-22ce-4aaf-9e51-562b59d50851.filesusr.com/ugd/1b20fb_55d4b0d132c54bd9a923a7b99d8f7959.pdf?index=true
    • http://zodumokosijupe.epizy.com/47799156615.pdf
    • https://87164119-88a6-4d6d-a72f-b109cf2d88b9.filesusr.com/ugd/bd0a66_137151f585cd4750ac34895dbddb1af6.pdf?index=true
    • http://fusizizugunu.epizy.com/11558079308.pdf
    • https://3c86e5df-9a55-47dd-9d5b-c207b25ec6cd.filesusr.com/ugd/72bf36_756d8604621c450d82fa32ca6b450a36.pdf?index=true
    • http://renunuxuxalebav.epizy.com/medical_terminology_list_of_terms.pdf
    • http://zaxutakizet.epizy.com/tasifepuzibemesexalo.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f9bb.bin
4576ade1d993bc361223db878beb7dd371c74a3da7abb980a9b50e36c1501a3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF9BB 5552 bytes
font_01_sfnt_off00010c7f.bin
61d23965fb9bbe6fd8dbcfa9548bf16329157d6403a0fcf9df676692eea5d77f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C7F 10520 bytes

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