Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ae39c5e69e9a06a…

MALICIOUS

PDF

100.5 KB Created: 2021-04-03 05:11:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 1af0742ea914dc3e60ca65cd8735ba43 SHA-1: 6d9bb6fafeb969a2dd98faaec72a9a5e56562907 SHA-256: 5ae39c5e69e9a06af8eca1c9b72116624b61cac76a13e695028c9122ce85caf3
96 Risk Score

Malware Insights

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

This PDF document is classified as malicious by ML and ClamAV, indicating a phishing or trojan threat. It contains an embedded URI pointing to a suspicious domain, likely intended to host a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to 'social learning theory chart', which is likely a pretext to encourage clicking the malicious link.

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
  • 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://seumenha.ru/strik?utm_term=social+learning+theory+chart PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4485156/normal_5ff346bd63e89.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465394/normal_5fe8418a334fd.pdfIn PDF document text
    • http://fastgetme.online/vijifupogakevudovev4qnxr.pdfIn PDF document text
    • http://olymptrade.buzz/mt_laurel_nj_police_reportsuut88.pdfIn PDF document text
    • http://healthyforczechrepublic.site/embedded_linux_hardware_software_and_interfacingn86f8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485810/normal_6054eb1a6880f.pdfIn PDF document text
    • http://uscarinsurance.info/cover_of_new_yorker_magazine_george_floydcov4e.pdfIn PDF document text
    • http://ig-copyrightviolation.com/44627262686ku38w.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/solonebosop/manual_chevrolet_spark_ng_2016.pdfIn PDF document text
    • https://s3.amazonaws.com/rerinago/file_oracle_blob_java.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/wuzuza.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/caliper_guide_pins_noise.pdfIn PDF document text
    • https://s3.amazonaws.com/vukusa/brave_frontier_summoner_arc_leveling_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/solutions_shampoo_by_great_clips_reviews.pdfIn PDF document text
    • https://s3.amazonaws.com/nafibanefexex/i_know_i_am_a_child_of_god_hymn_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/povelenavuviw/rizobanekenodul.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/xusisemilubinadiromi.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/fumizefabupib.pdfIn PDF document text
    • https://doi.org/10In 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_off00014d6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14D6F 5088 bytes
SHA-256: 21f0614c40d686ebd6f9a3766144bee83bb54fad73676e6cb627e6165369f6cd
font_01_sfnt_off00015ec2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15EC2 11080 bytes
SHA-256: 072550a232a1d1370d612530ca1aadd344076ed8539d7240f1630a7d69a156f0

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