Malicious PDF — malware analysis report

Static analysis result for SHA-256 77fb2c439ebafa00…

MALICIOUS

PDF

82.0 KB Created: 2021-03-23 06:02:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 6cf4db0b37456b44e0d07e58eebd30ec SHA-1: 319f621f0a9cac8e1f4cc47db2693ae256959a96 SHA-256: 77fb2c439ebafa00d2dd64edf0f85d2266159b7597ef970cab41c2eee05acb2b
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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=penny+stocks+list+nse PDF link annotation
    • http://fevofawemuwa.medianewsonline.com/binubawed.pdfIn PDF document text
    • http://worameruvejaka.mywebcommunity.org/garmin_astro_220_instruction_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/futevanu/hvBGib9/calculator_plus_free.pdfIn PDF document text
    • https://cdn.sqhk.co/rolileduvof/kcjie2T/stars_live_wallpaper_picker_apk_kitkat.pdfIn PDF document text
    • http://veruvipavopa.getenjoyment.net/how_to_prime_traxxas_t-maxx.pdfIn PDF document text
    • https://cdn.sqhk.co/tovisegag/jciegfg/83028202636.pdfIn PDF document text
    • http://tokepubex.getenjoyment.net/nuxorixezob.pdfIn PDF document text
    • http://lobabinuladeri.medianewsonline.com/64906471435.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/wifukedot/game_battleground_offline_android_terbaik.pdfIn PDF document text
    • https://s3.amazonaws.com/nijosinizo/cateye_cc-mc100w_parts.pdfIn PDF document text
    • http://siniligavaxuvul.onlinewebshop.net/concepto_de_insuficiencia_cardiaca.pdfIn PDF document text
    • https://s3.amazonaws.com/fowikorejodi/bangladesh_day_night_test.pdfIn PDF document text
    • https://s3.amazonaws.com/fekife/guwomazevovom.pdfIn PDF document text
    • https://s3.amazonaws.com/jazamerijekufol/united_nations_competency_based_interview_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/xajivi.pdfIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/parts_of_speech_quiz_printable_8th_grade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82995c46-e3e7-4482-a387-a8ce628e1939/why_were_rock_and_plays_recalled.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b7dacbe-1c50-46be-81c9-99ee34557e43/how_to_start_microsoft_project_2013.pdfIn 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_off00010632.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10632 4652 bytes
SHA-256: ad5075f33ed8a06b362958f92a51ce668d77a69263003a658d519cfed86e950f
font_01_sfnt_off0001162f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1162F 10948 bytes
SHA-256: e46cc2559d804588f18f7dd23fcce53dbfe3d9b5a6c98e96390180de0331bbb5

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