Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6eb0be78bb2fdeb…

MALICIOUS

PDF

74.1 KB Created: 2021-05-26 06:46:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45f1d853f8fd073416e15375793a3d93 SHA-1: e4cfbb35aa481b25769197d844022bb5cf79407b SHA-256: d6eb0be78bb2fdeb3d82f893cf00059c65fc7de59958e32985240b1139bbac54
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URL that leads to a suspicious domain, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, appears to be related to a worksheet, which is a common lure for social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://xezojetit.ru/strik?utm_term=triangle+interior+angle+worksheet+answers+sheet+2
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/ce37072a-05ca-444c-8b26-3a7f5800ab14/50238589090.pdf
    • https://uploads.strikinglycdn.com/files/2e323654-4196-44f2-a06b-ac5c886eda56/amplificador_fender_princeton_chorus_2x10.pdf
    • https://s3.amazonaws.com/kukupunopedon/wutafakituzunelojurax.pdf
    • https://s3.amazonaws.com/kofabube/practice_makes_perfect_spanish_verb_tenses_premium_fourth_edition.pdf
    • https://s3.amazonaws.com/robumuduluwise/66234344175.pdf
    • https://s3.amazonaws.com/welanisowari/are_guns_allowed_in_costco.pdf
    • https://s3.amazonaws.com/robumuduluwise/zufexozedadiwalebife.pdf
    • https://s3.amazonaws.com/luxelula/types_of_organizational_structures_writing.pdf
    • https://s3.amazonaws.com/nezanurugega/message_man_english_subtitle.pdf
    • https://s3.amazonaws.com/befarekogol/plural_nouns_worksheet_for_grade_2.pdf
    • https://uploads.strikinglycdn.com/files/54962f41-d793-40e7-b1f4-0c8b7c2282a4/the_little_prince_full_movie_download_free.pdf
    • https://s3.amazonaws.com/fazujo/14649457994.pdf
    • https://uploads.strikinglycdn.com/files/c8c794d6-cff9-4820-820c-909b7544d6d3/firadukerewenegunum.pdf
    • https://s3.amazonaws.com/simujix/blade_and_soul_launcher_not_ing.pdf
    • https://s3.amazonaws.com/retobifulipo/ravojuzasenarixuli.pdf
    • https://s3.amazonaws.com/fifomi/angry_ip_scanner_para_android.pdf
    • https://s3.amazonaws.com/bevekizadoxuj/apocalpticos_e_integrados_completo.pdf
    • https://s3.amazonaws.com/puretulenuza/60037583017.pdf
    • https://s3.amazonaws.com/pubopelej/kivodawu.pdf
    • https://uploads.strikinglycdn.com/files/1023aa60-3824-49f8-8b43-5d5b8349cd66/33131993918.pdf
    • https://s3.amazonaws.com/dipafuxe/gipudafegezupunatukiluku.pdf
    • https://s3.amazonaws.com/robumuduluwise/hp_laserjet_p2015_printer_cartridge_price_in_pakistan.pdf
    • https://s3.amazonaws.com/najipavez/35134580246.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_off0000e68f.bin
38c119ea1d4ef729ffc50df99c5e160af3c023d5b45f702cb99332e4b120e2c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE68F 5184 bytes
font_01_sfnt_off0000f83e.bin
5421b7910eeb1c364001345f65bfc08dd29ab783ae7ddc594f89246b65077d0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF83E 10128 bytes

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