Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b2a0c0f914ecf25…

MALICIOUS

PDF

80.2 KB Created: 2021-05-20 02:04:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13
MD5: b930e5199c7a8e48061d806484abcc97 SHA-1: 058f98653aaff0a6e10a10013dda0f464a2c9c7a SHA-256: 5b2a0c0f914ecf25ba7d49bca9238268eb06cfb463fea396c1321b7352c18982
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a lure related to downloading the game 'Jurassic Park Operation Genesis', which is associated with a high-risk heuristic for SEO redirectors and phishing. The embedded URL points to a suspicious domain, indicating a likely phishing attempt or a distribution point for further malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/strik?utm_term=jurassic+park+operation+genesis+pc+download+full+game PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xuzakob/is_it_better_to_sign_up_for_planet_fitness_online_or_in_person.pdfIn PDF document text
    • https://s3.amazonaws.com/bifadiwuwileji/chat_app_using_firebase_android_example.pdfIn PDF document text
    • https://s3.amazonaws.com/gogonof/gull_lake_alberta_fishing_report.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/sample_health_and_safety_interview_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/woxotopapozokev/flags_quiz_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/redegelesibif/canon_speedlite_430ex_ii_review.pdfIn PDF document text
    • https://s3.amazonaws.com/jalasilunaz/pukaxixilojutopafu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/427da567-b435-4574-8a4d-382fd2ea9ed5/32792879825.pdfIn PDF document text
    • https://s3.amazonaws.com/wakuzidi/the_planting_of_english_america_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/53604687552.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/tamilrockers_nattamai_hd_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/how_are_protobionts_formed.pdfIn PDF document text
    • https://s3.amazonaws.com/leributafa/ashanti_movie_video_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/coliform_mpn_table.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/fukapuziwopotawotut.pdfIn PDF document text
    • https://s3.amazonaws.com/naxozelozude/sony_wega_projection_tv_flashing_green_light.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72cbb773-f842-4385-a082-c8ae939dca99/71974954200.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/dl_flyer_template_indesign.pdfIn PDF document text
    • https://s3.amazonaws.com/nerugiraxura/tovodexudirifowivopugekab.pdfIn PDF document text
    • https://s3.amazonaws.com/povodijirig/sarowozikevulim.pdfIn PDF document text
    • https://s3.amazonaws.com/gogunabones/48817952041.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_off0000fc66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC66 5620 bytes
SHA-256: aa0873a93724f308fc43d0505112919fc9be7f2de5ac071bda5b9d0271e2f90b
font_01_sfnt_off00010f8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F8C 10756 bytes
SHA-256: 2e54d7b2dd0a3da96a52c5c6bdc24edafb8e44a30a55403c66a375b552a95ee7

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