Malicious PDF — malware analysis report

Static analysis result for SHA-256 390c193c05c9e307…

MALICIOUS

PDF

68.4 KB Created: 2021-05-18 00:27:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dc3c11bc6e537ddc088f7e764c9e9dc9 SHA-1: 2c1e54763a46184936f91dff6ca944f410c2d66f SHA-256: 390c193c05c9e30760c8ce46775cdffd2345b544f77c883913c42f909a9a5747
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, with a high risk score. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains text related to a movie search, suggesting a lure to entice users to click the malicious link.

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://nipisod.ru/strik?utm_term=richie+rich+full+movie+free
    • http://kekemubitaf.iblogger.org/67119778603.pdf
    • https://static.s123-cdn-static.com/uploads/4461484/normal_5fff021a9e0cd.pdf
    • https://wipukanutunuk.weebly.com/uploads/1/3/1/4/131437017/4675892.pdf
    • https://static.s123-cdn-static.com/uploads/4405208/normal_5fdeda96908f5.pdf
    • https://lumejukotexute.weebly.com/uploads/1/3/1/1/131163930/797362299dfb.pdf
    • https://cdn-cms.f-static.net/uploads/4460232/normal_601b1a45bdb28.pdf
    • https://mopotiwifatuge.weebly.com/uploads/1/3/0/8/130813373/gepunuru.pdf
    • https://wimugedi.weebly.com/uploads/1/3/4/7/134725841/1671368.pdf
    • https://pawupakupofodav.weebly.com/uploads/1/3/5/3/135388754/5286449.pdf
    • https://static.s123-cdn-static.com/uploads/4484636/normal_5fe2d0b79a38f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/wozoxub/9601500373.pdf
    • https://uploads.strikinglycdn.com/files/8bb170a7-0521-40cc-93ab-b822b5e4ae4f/the_merchant_of_venice_characters.pdf
    • https://s3.amazonaws.com/zomuzigo/94698706599.pdf
    • http://xupizoxodigumir.rf.gd/kelifetexinopazuwi.pdf
    • https://uploads.strikinglycdn.com/files/a5489485-7980-4c61-82a5-54219d81912e/what_are_the_pharmacy_hours_at_walmart_on_sunday.pdf
    • http://wevabotatufor.rf.gd/what_qualities_do_a_good_team_leaders_need.pdf
    • https://uploads.strikinglycdn.com/files/1c612cef-75c0-4ef2-916e-ed882d00c48f/venn_diagram_template_word.pdf
    • http://kenizuz.epizy.com/active_and_passive_voice_worksheet_class_6.pdf
    • https://s3.amazonaws.com/jikopot/enfold_create_custom_template.pdf
    • https://s3.amazonaws.com/kewuxejikiwe/vivegam_full_hd_movie_in_tamil.pdf
    • https://s3.amazonaws.com/zidosozawok/bojisikiriremubixufofowis.pdf
    • https://uploads.strikinglycdn.com/files/b2c37417-a7cd-4d40-bb8f-b535aec23795/moon_river_color_street_combos.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_off0000d07f.bin
f03660542b1d844435df80441e8787a0c3f24a36872a3d6e52dab4b14ad383da		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD07F 4800 bytes
font_01_sfnt_off0000e0b6.bin
584b7cd839223b6199529355dd3e087a91843abbde17207a3243f793b106d8a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE0B6 9916 bytes

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