Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5ca8c2ccfd37ffd…

MALICIOUS

PDF

105.3 KB Created: 2021-04-02 08:48:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 4a06915e32cd25bcbebb637e4b6c0fe0 SHA-1: 9f2972fb5e484ecb0b7562d4b4aa64ddd50eb343 SHA-256: b5ca8c2ccfd37ffdea047b6cc609b517cf1c651d929e72ce8019ee116f3abd69
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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://bologen.ru/strik?utm_term=serato+dj+lite+and+pro PDF link annotation
    • https://cdn.sqhk.co/fopalixogul/vgjhgib/50644167435.pdfIn PDF document text
    • http://tryse.xyz/40043720891gf92g.pdfIn PDF document text
    • https://cdn.sqhk.co/xobadata/gJiiHgh/dajovimajuduwupodixakegez.pdfIn PDF document text
    • http://naturagrush.space/city_of_cartersville_police_reportsb6vuz.pdfIn PDF document text
    • http://clubstore.pro/how_did_ram_dass_passed_awayp46lp.pdfIn PDF document text
    • http://mylic.ru/63339952790jac5q.pdfIn PDF document text
    • http://jurelireroxux.22web.org/88601166942.pdfIn PDF document text
    • http://instapodarok365.site/206766149576tkti.pdfIn PDF document text
    • http://tonevagewalilu.medianewsonline.com/30436414039.pdfIn PDF document text
    • http://jenuxijaf.mygamesonline.org/3630835799.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/setigafat/animation_in_android_example.pdfIn PDF document text
    • https://s3.amazonaws.com/rafiralexezol/muerte_de_los_androides_19_y_20.pdfIn PDF document text
    • https://s3.amazonaws.com/daniwodug/43563972457.pdfIn PDF document text
    • https://s3.amazonaws.com/difigomisosak/sokipapegow.pdfIn PDF document text
    • http://vevasog.epizy.com/38789521047.pdfIn PDF document text
    • http://zerozuru.epizy.com/the_trial_and_death_of_socrates_four_dialogues.pdfIn PDF document text
    • https://s3.amazonaws.com/savukojubusum/hec_ras_manual_mannings_n_values.pdfIn PDF document text
    • http://tefetuzuzip.myartsonline.com/zefumolederixigobifoxi.pdfIn PDF document text
    • https://s3.amazonaws.com/dotivaf/xatemowupo.pdfIn PDF document text
    • https://s3.amazonaws.com/pululusodogi/bitdefender_antivirus_free_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/buganabowumujef/zoxonu.pdfIn PDF document text
    • https://s3.amazonaws.com/baxegezivumi/79142170632.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_off00015541.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15541 4744 bytes
SHA-256: 3b1b6fbc40dac218144455c40330dae82a5b40b769a48f36e4cbf067384e9fa3
font_01_sfnt_off00016561.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16561 10372 bytes
SHA-256: 294d824c2bb9777ff3f1af1645a7a391cad1bbaa9769765819d2a6b32cce4a98
font_02_sfnt_off000188d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x188D7 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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