Malicious PDF — malware analysis report

Static analysis result for SHA-256 49f669c5614eb976…

MALICIOUS

PDF

73.7 KB Created: 2021-04-08 08:01:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2c6d35d565a619018bb8e8e347b174bf SHA-1: 240fed946ea9c762b48d69b44fa518c6df05540c SHA-256: 49f669c5614eb9769b2b5c9daf3503df1bf242a21ea950f7c828502e5834a33f
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support its malicious nature. Although no scripts were explicitly extracted, the presence of external URLs and the overall context suggest the document is designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://zajinet.ru/strik?utm_term=how+to+use+a+stihl+ms+170+chainsaw
    • http://wubewaxipezopi.22web.org/navijajex.pdf
    • http://fruitslope.online/what_is_the_best_app_for_tracking_stepsshli4.pdf
    • http://vinnipoh.fun/how_to_speak_english_fluently_best_app9oxob.pdf
    • https://cdn.sqhk.co/ragebobeb/ahh5gdi/guidehouse_pwc_glassdoor.pdf
    • http://helplnstagram-confirm.com/where_the_wild_things_are_quotes_imdbbqp63.pdf
    • https://cdn.sqhk.co/kajipazuto/4hfSVih/akeli_na_bazar_ringtone_free.pdf
    • https://cdn.sqhk.co/nepasibuta/n6qdjef/54623801764.pdf
    • http://reduslimitaly-ufficiale.site/mofigl8rm6.pdf
    • https://cdn.sqhk.co/xorunase/gchaMCu/stick_cricket_live_mod_apk_android_1.pdf
    • http://wewonuzux.22web.org/algebra_and_trigonometry_5th_edition.pdf
    • https://cdn.sqhk.co/rovifatira/amjilMD/mevedexutaloseri.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/ragejufa/liverpool_vs_arsenal_match_report.pdf
    • https://uploads.strikinglycdn.com/files/790a082f-4c18-4680-a297-38978161352c/15282302830.pdf
    • http://titasukutisun.epizy.com/47551243595.pdf
    • https://uploads.strikinglycdn.com/files/3697e4bc-b5c4-49af-9f55-663d6127beca/finite_element_analysis_book_by_j_n_reddy.pdf
    • http://laxunuwozen.epizy.com/milofelukisedajupuve.pdf
    • http://zagopemolal.rf.gd/admin_panel_template_angular.pdf
    • https://uploads.strikinglycdn.com/files/8acde5e3-1bf5-4a15-8f75-4f5a6968e5f3/zugelofivalupojufeze.pdf
    • http://nawonuzegajosi.epizy.com/free_movies_carry_on_jatta.pdf
    • https://uploads.strikinglycdn.com/files/39b67f98-55f6-45be-973c-f109eafc4525/lurutikekorov.pdf
    • https://s3.amazonaws.com/zukogi/character_description_planning_sheet_year_4.pdf
    • http://jevitof.epizy.com/bobogaromorupuzikezanis.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_off0000df59.bin
91267d9b9983ffc3b28eb8f9c5023303eb93bf28f723f872a96d8356a152b1ea
pdf-font-stream PDF embedded font (sfnt) at offset 0xDF59 5272 bytes
font_01_sfnt_off0000f13c.bin
1c0df2df0d6158222046cb83aced5275d0706ca297886cc55fd018d4b946b7b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xF13C 11848 bytes