Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2a14cab0dae0e00…

MALICIOUS

PDF

76.0 KB Created: 2021-03-08 16:42:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 00ee4950eb25bda540d1ffd1fbd3f33c SHA-1: 5ff24a4e508c1efc381390fffa3f693f346e71a4 SHA-256: b2a14cab0dae0e0079c0bfac6657f60bac72c500289ec9e2d943928eecaa4cfa
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, with a significant number pointing to disposable hosting and exhibiting link farm characteristics. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery. The presence of URLs like 'https://fokemale.ru/123?utm_term=canford+school+sixth+form+open+day' suggests a lure related to educational events to entice users to click on malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/123?utm_term=canford+school+sixth+form+open+day PDF link annotation
    • http://gopuderolan.iblogger.org/fan_outline_template.pdfIn PDF document text
    • https://cdn.sqhk.co/fewibefanid/ckcbsG1/zombie_apocalypse_game_unblocked_games.pdfIn PDF document text
    • http://zibujedi.iblogger.org/lexexofitel.pdfIn PDF document text
    • https://cdn.sqhk.co/ligumorik/cXghgdx/13696811035.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://saninov.epizy.com/73997544309.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/hunger_games_mockingjay_part_2_full_movie_download_in_tamil.pdfIn PDF document text
    • http://botesuni.epizy.com/silodosiferimaxorab.pdfIn PDF document text
    • http://dimegebewode.epizy.com/53947187698.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8d551a7-d3b6-45cc-bdf2-8dfe1766692d/pathfinder_kingmaker_animal_companion_guide.pdfIn PDF document text
    • http://vekalaluno.epizy.com/los_pronombres_relativos_en_ingles_y_espaol.pdfIn PDF document text
    • http://zaguvigijosev.epizy.com/calendario_mes_septiembre_2018.pdfIn PDF document text
    • http://rorujuzolu.epizy.com/pogafezejizaluxakufuma.pdfIn PDF document text
    • https://s3.amazonaws.com/daniwodug/righteous_bold_font.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/belavofisap.pdfIn PDF document text
    • https://s3.amazonaws.com/mipizaju/madura_raja_collection_report.pdfIn PDF document text
    • http://gafamiziwadi.rf.gd/ac_market_pro_2017_apk_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea1fd40f-9eb5-4339-adb2-c3a0b7658a24/17455871322.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f114632-8f72-47fb-b9fc-924d3d4a26ef/walmart_disney_baby_pack_and_play.pdfIn PDF document text
    • https://s3.amazonaws.com/xalasawu/50821015406.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b12d1a38-6c79-4bc3-a5a0-2ea97220f45d/fender_frontman_212r_guitar_amp_review.pdfIn PDF document text
    • http://zudosikewemer.epizy.com/how_much_does_an_amazon_station_operations_manager_make.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c318e580-9606-4c73-9574-de08b5a9438d/craftsman_speed_start_weedwacker_27cc_carburetor.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_off0000e85e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE85E 5468 bytes
SHA-256: 4feb12e271c9d8e0a048df8cd4964bc5a995deb401b9ae2cb3366c0747d60beb
font_01_sfnt_off0000fadf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFADF 11364 bytes
SHA-256: 7b4853fb58581bcb8f70f09cc73d5540f9ecd2ec6ff352e866bfa7e95719894c

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