Malicious PDF — malware analysis report

Static analysis result for SHA-256 e280a024c41a5b02…

MALICIOUS

PDF

78.4 KB Created: 2021-03-20 05:24:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f1931e66a0496884b84eb6114fb4819c SHA-1: 9cd5e398cd9eebe3ca41e86cf638d5fe084dbda2 SHA-256: e280a024c41a5b0226ae138e9843c818379519becf423cafd342bb929101c6d9
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that leads to a suspicious domain, identified by heuristics as a potential phishing or malware distribution vector. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://ponafet.ru/123?utm_term=large+tent+with+sewn+in+groundsheet
    • https://ripodomix.weebly.com/uploads/1/3/0/7/130775876/fosazusapakuxu.pdf
    • http://sirosin.iblogger.org/famumesigojutadaju.pdf
    • http://tuworiki.22web.org/49853201882.pdf
    • https://cdn-cms.f-static.net/uploads/4372377/normal_602bae013ab61.pdf
    • https://static.s123-cdn-static.com/uploads/4452861/normal_600741096b33a.pdf
    • https://voxonororipesap.weebly.com/uploads/1/3/5/3/135383222/tisukevinoxuv.pdf
    • https://rotasemenedifo.weebly.com/uploads/1/3/5/9/135985080/e4dd91d8.pdf
    • https://kizofupotumi.weebly.com/uploads/1/3/4/3/134314367/zuzaja-megowajupo.pdf
    • http://mukedasimewiri.22web.org/basic_guitar_chord_finger_placement_chart.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://vewemisesafi.epizy.com/instep_sync_bike_trailer_parts.pdf
    • http://fazesiviwor.rf.gd/macmillan_english_language_book_1_worksheets.pdf
    • http://bebezira.epizy.com/wizimo.pdf
    • https://uploads.strikinglycdn.com/files/711d55e7-2cc2-4e78-be12-ff92d76f7571/8375097940.pdf
    • http://pokazirajig.rf.gd/dobutamo.pdf
    • https://acfc0e76-311d-46af-9c13-f46c112eb424.filesusr.com/ugd/f90bad_d5d327389f8147278298e4168868f02e.pdf?index=true
    • https://uploads.strikinglycdn.com/files/62698e03-f814-467d-a505-54be9e1b7e60/38857718390.pdf
    • https://uploads.strikinglycdn.com/files/d6da4e25-d19c-4dbe-9ecb-4d7842d78bbc/dragon_age_origins_lothering_side_quests.pdf
    • https://a3de454e-1598-42bb-a259-4eb69c42f179.filesusr.com/ugd/fb5067_16735010fff04f8e88d4d8783d5102df.pdf?index=true
    • http://vowukexakajan.rf.gd/54563055021.pdf
    • https://6200e599-3f2f-4e3e-ab45-e6977ed7e777.filesusr.com/ugd/f8de3e_8697b4330d7746b5bf363eaa29a2312b.pdf?index=true
    • https://uploads.strikinglycdn.com/files/1508fed5-4e7e-455e-83ea-108328c82fdb/42831767492.pdf
    • https://uploads.strikinglycdn.com/files/1720e203-ad42-403f-9bb3-bc7e6a586f34/sanomamoxeji.pdf
    • http://lomonogugala.epizy.com/lithic_analysis_odell.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_off0000f2a1.bin
e11604118531e452fb9c3999bb76e5fa6d1e311bfc5c051e272f5ec0a867eeb3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A1 5088 bytes
font_01_sfnt_off000103fc.bin
468c42f02f952357a2acc26c8783610fd90908e4adabc400f42083419aeae751		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103FC 11244 bytes

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