Malicious PDF — malware analysis report

Static analysis result for SHA-256 e67cfd16553a83f6…

MALICIOUS

PDF

80.3 KB Created: 2021-03-24 00:21:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c88aab40bfcfeac13c4bf52581866c31 SHA-1: bf4d824ddf3e5358e3c9f632986bd3f6d3788ebc SHA-256: e67cfd16553a83f6d15eafcba0a1034f1daa6ef0928d055ca8ddc1452ae2487c
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded URLs, specifically 'https://fokemale.ru/wix?keyword=anam+cara+pdf+portugues', suggests the document is designed to redirect users to a potentially harmful site. While no scripts were explicitly extracted, the PDF structure and embedded URLs are consistent with phishing or malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://fokemale.ru/wix?keyword=anam+cara+pdf+portugues
    • https://rajexomogalifi.weebly.com/uploads/1/3/4/8/134891851/gaxizebaro-piwagoxuwuw-gunuvawivasa-latux.pdf
    • https://cdn-cms.f-static.net/uploads/4384464/normal_5fda42136758b.pdf
    • http://sesesuruko.mypressonline.com/37701127929.pdf
    • https://sotezogurew.weebly.com/uploads/1/3/2/7/132740991/6545039.pdf
    • https://cdn.sqhk.co/rumobotituda/kOhe1hf/whiskey_myers_gone_away.pdf
    • https://cdn.sqhk.co/zevolazezag/VHjVqrE/bcm_basketball_champion_manager_mod_apk.pdf
    • http://fakaluwu.scienceontheweb.net/boolean_algebra_class_12_computer_science_notes.pdf
    • https://vijibasotaxeja.weebly.com/uploads/1/3/5/9/135990507/6749637.pdf
    • https://static.s123-cdn-static.com/uploads/4370540/normal_6008e4a457622.pdf
    • https://cdn.sqhk.co/daxutoxod/gWdrB9v/91571244585.pdf
    • http://duzusedolatepe.mypressonline.com/99833750783.pdf
    • https://widafesisitix.weebly.com/uploads/1/3/5/3/135321065/fekinuru.pdf
    • https://cdn-cms.f-static.net/uploads/4424692/normal_60301fa7b8945.pdf
    • https://rilolani.weebly.com/uploads/1/3/4/4/134459611/fojiromogeg-turenal.pdf
    • http://garanibukumom.scienceontheweb.net/60798548120.pdf
    • https://baginemesurewis.weebly.com/uploads/1/3/1/3/131380932/3569710.pdf
    • https://cdn.sqhk.co/petebeki/ibbhb4N/kumabozup.pdf
    • http://gezinuduwep.medianewsonline.com/addition_with_regrouping_for_grade_1.pdf
    • https://cdn.sqhk.co/kafufojugure/jibNha9/pay_city_of_houston_warrants_online.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rozabuveragavep.epizy.com/attestation_justificatif_de_domicile.pdf
    • http://baxiziroj.epizy.com/excel_date_schedule_template.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_off0000fd32.bin
056d2ea9fba0835ad531e6ddbc50d170ae003a34ae8778ce6f9af3ac0b87a3f0
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD32 5432 bytes
font_01_sfnt_off00010f9b.bin
67dd785ff7dbf4873fedd45ae3d948ed4d971f635b916d929a525708f8881481
pdf-font-stream PDF embedded font (sfnt) at offset 0x10F9B 10300 bytes