Malicious PDF — malware analysis report

Static analysis result for SHA-256 af9b02bf7d181ad4…

MALICIOUS

PDF

73.5 KB Created: 2021-03-13 21:18:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2326b8dd32884d6e08c2d9e3bdc2535a SHA-1: ece2793d707e92695ff1288b165e09c33853e5f0 SHA-256: af9b02bf7d181ad483939ac6d1a91fe8b162658a1edbcb6f847a79c5b6180221
96 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating the presence of external URIs and embedded URLs, with one notable URL being https://ponafet.ru/123?utm_term=brochure+designs+pdf+free. ClamAV detection and an ML classifier strongly suggest malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards an attempt to redirect the user to a malicious site, potentially for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/123?utm_term=brochure+designs+pdf+free
    • http://lolkek.xyz/20460705829ddg6w.pdf
    • http://bukuminuwakub.mypressonline.com/54933911402.pdf
    • http://triple-doska3.club/food_wars_anime_episode_2xenor.pdf
    • http://lowufadit.scienceontheweb.net/has_any_prophet_seen_allah.pdf
    • http://xanusojuruxu.sportsontheweb.net/99837656489.pdf
    • http://options.expert/wheel_of_life_assessmentfx4nf.pdf
    • http://sdl-trade.com/winchester_model_94_side_scope_mount_screws822kf.pdf
    • http://vijexibat.mywebcommunity.org/dimomoneba.pdf
    • http://13millions.store/sekipabeviripawjdlns.pdf
    • http://katipef.medianewsonline.com/41006485920.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/feb39c9e-5b06-4505-886d-9428f009646c/where_can_i_drop_off_donations_today_near_me.pdf
    • https://uploads.strikinglycdn.com/files/dd2fda2d-df17-4463-8457-3645b6234f20/whats_better_gas_or_piston_ar_15.pdf
    • https://uploads.strikinglycdn.com/files/ad0deeec-bce9-4b0d-a536-96bdb70d52af/54310326199.pdf
    • https://uploads.strikinglycdn.com/files/da47d6fb-5c85-4326-952d-0db1ba74c773/20424480093.pdf
    • http://nokumew.epizy.com/acido_acetico_en_vinagre.pdf
    • https://uploads.strikinglycdn.com/files/0fbae866-4878-497c-8ae2-5dd3865412ce/41908662310.pdf
    • https://uploads.strikinglycdn.com/files/7f5c99f9-87ef-4785-8d90-373af5c5db43/56086322261.pdf
    • http://gumomexad.onlinewebshop.net/qualified_audit_opinion.pdf
    • https://uploads.strikinglycdn.com/files/09bd4fc4-1180-45df-ad72-1721bb6e498b/gesevupopixaduwerifabogu.pdf
    • http://luzeparuzibez.rf.gd/9772904597.pdf
    • https://uploads.strikinglycdn.com/files/c7ad69eb-a890-4807-ad0d-da542aeba5d1/how_much_is_yamaha_r6.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_off0000e408.bin
f5770257bf862466515c02fefea430975543cb710101aa303683c7f5b7541e12		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE408 5224 bytes
font_01_sfnt_off0000f5d2.bin
f885d1b1d79a61b99035f122c530dcc3412d341756b3ce49323ede113dbc21ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF5D2 10296 bytes

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