Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bf00723fd96bb46…

MALICIOUS

PDF

78.2 KB Created: 2021-02-07 21:06:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 34ce32581fa212886c5459609011a7ae SHA-1: 26e2093afb0e5ca1d656f543c0e43f4c19bf1e34 SHA-256: 0bf00723fd96bb4640ed3fd3a7498cf90718e6e8609680dbe8a212622f373772
154 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The embedded URL, 'https://crophysi.ru/aws?utm_term=metzengerstein+edgar+allan+poe+pdf+english', is the primary indicator of malicious intent, likely serving as a lure for phishing or malware distribution. The ML classifier and ClamAV detection further support the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://crophysi.ru/aws?utm_term=metzengerstein+edgar+allan+poe+pdf+english In PDF document text
    • https://cdn-cms.f-static.net/uploads/4450156/normal_600ed9fa84099.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416331/normal_600d46f4c05f8.pdfIn PDF document text
    • http://soul-felt.com/sniper_3d_assassin_cheats_without_human_verificationf3mew.pdfIn PDF document text
    • https://cdn.sqhk.co/duvetezoje/idjiii3/ragofipaxeralidujug.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501364/normal_5fe04ac8b03fe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417806/normal_5fcff10dca700.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380403/normal_5fffd9321f49b.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/lazolu/61914784552.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/checkpoint_5600_configuration_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/metubevozisul/whale_gusher_30_manual_bilge_pump.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/finarupozelovekog.pdfIn PDF document text
    • http://dajovomofoziso.rf.gd/pendientes_de_oro_en_forma_de_cruz.pdfIn PDF document text
    • http://feselipalez.epizy.com/34010956345.pdfIn PDF document text
    • https://s3.amazonaws.com/fogibi/jidudadavexazapebi.pdfIn PDF document text
    • https://s3.amazonaws.com/boxalewijim/basic_flowchart_template_powerpoint.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_off0000f669.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF669 5360 bytes
SHA-256: 9c62bdf30e208b30582cc78b8d475786d440adca79f7f33d5ebcdcea03feb743
font_01_sfnt_off000108b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108B4 10236 bytes
SHA-256: 2eac70277348007bf210b725f9e18b840b1b92d224f4860337468f0bb4c94620

Open this report in the interactive analyzer, or submit your own file for analysis.