Malicious PDF — malware analysis report

Static analysis result for SHA-256 a68e84a60e856f05…

MALICIOUS

PDF

74.1 KB Created: 2021-03-17 10:00:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 11e1f709801927896f14a0115d76ab56 SHA-1: 5a218dcfd6af823211a5dc17a1cc6769a55c6e63 SHA-256: a68e84a60e856f05ecbe7239b8509b3eefe55d8e604e127cf6f375a050adb059
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that points to a domain associated with malicious activity, as indicated by ClamAV detection and ML classification. The document body, though heavily obfuscated, appears to contain text related to a recipe, which is likely a lure to entice users to click the malicious link. The presence of an external URI and the overall detection by security tools strongly suggest a phishing or malware distribution attempt.

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://jacksth.ru/strik?utm_term=brandy+alexander+recipe+kahlua
    • https://cdn.sqhk.co/tatidukigag/gdYAAAe/fezeguvoxowef.pdf
    • https://cdn.sqhk.co/pivogokixej/gcmniim/dj_sound_effects_downloads.pdf
    • https://cdn.sqhk.co/sedazozesufu/hiu90jf/bakififis.pdf
    • https://cdn.sqhk.co/lipebefaje/5xhbKza/gererolelukaf.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/d97dda65-6a5f-45f7-967b-09d45b8be738/lumoxuseju.pdf
    • https://uploads.strikinglycdn.com/files/91d93fa0-d56c-47c5-a255-609d05f595cb/percy_jackson_film_streaming.pdf
    • http://kunibenurupamiv.rf.gd/kiroxubufalawi.pdf
    • https://s3.amazonaws.com/takurugilij/duxevanebexaxur.pdf
    • https://s3.amazonaws.com/ropuba/fupexutiboretigutojorapim.pdf
    • https://s3.amazonaws.com/purawuma/alliance_of_american_football_referee_uniforms.pdf
    • https://s3.amazonaws.com/bopuxosavubare/gogix_fact_sheet.pdf
    • https://uploads.strikinglycdn.com/files/0ed9c991-e470-4eba-90c2-53a17bcb9691/tepumexojizus.pdf
    • https://s3.amazonaws.com/zazelujeju/think_fast_and_slow_book.pdf
    • http://wukazuvogupe.epizy.com/morality_definition_philosophy.pdf
    • https://uploads.strikinglycdn.com/files/1afbb5a1-3e15-4fa9-98fa-91c2fe6df6ad/2688157943.pdf
    • https://s3.amazonaws.com/nagev/bike_racing_games_apkpure.pdf
    • https://uploads.strikinglycdn.com/files/da97be08-c091-4389-a058-faafc2633e88/us_history_quiz_high_school.pdf
    • https://s3.amazonaws.com/waxegatulo/interactional_self_answer.pdf
    • https://s3.amazonaws.com/midaguvimabof/dekaziduxuto.pdf
    • https://uploads.strikinglycdn.com/files/d6f14a9d-527b-4ae5-9f1d-5edb173550f4/where_is_the_hp_repair_center.pdf
    • https://uploads.strikinglycdn.com/files/3283ee0d-dbc1-4949-ab60-21fa3b047329/icao_annex_17_11th_edition.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_off0000e3d4.bin
29d32ea8430607baf3540f68db4f0f23a3975deb05d6af38d176fda122e50989		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE3D4 5268 bytes
font_01_sfnt_off0000f5c4.bin
e0b6af7f21c7d543033586a046118beee5b18c13b1e1980426c6e9253e1e9f6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF5C4 11004 bytes

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