Malicious PDF — malware analysis report

Static analysis result for SHA-256 3136694baa543446…

MALICIOUS

PDF

78.4 KB Created: 2021-03-18 19:00:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a774c474cdc15466d4763f6df348b5fd SHA-1: 765865be21121a35c7b98a7fa608072efcb7ef7a SHA-256: 3136694baa54344658c7c4f60e72fe8f8664639dd58f322ded05d28315303723
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely used to deliver a malicious payload or conduct phishing. The document body, though heavily obfuscated, suggests a lure related to 'Complete ketogenic diet for beginners pdf', aiming to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://lozipotod.ru/award?keyword=complete+ketogenic+diet+for+beginners+pdf
    • http://drnextact.xyz/field_hockey_training_videos_youtube0neyp.pdf
    • http://foyou.store/bar_manager_training_guidef4mgr.pdf
    • http://cesaregaspari.com/big_five_personality_traits_testij888.pdf
    • http://appeal-ig.com/75944739932n6ydu.pdf
    • http://lnstgramhelpcopyright.com/410329955149zeee.pdf
    • https://cdn-cms.f-static.net/uploads/4424400/normal_604dde1fb2972.pdf
    • http://tehnoprom.org/valentines_parkrun_reportlk4ei.pdf
    • http://cardio-active.site/57967600376rqksm.pdf
    • https://cdn.sqhk.co/sobexofap/vSjjjhp/mabinogi_archery_talent.pdf
    • http://instapriz24.site/organizational_structure_powerpoint_template97asz.pdf
    • https://cdn.sqhk.co/mikedeto/jdhizji/langrisser_2_walkthrough.pdf
    • http://f1l3download.site/kupavapulk12s.pdf
    • http://zanartcc.net/what_are_the_units_of_a_and_b_in_van_der_waals_equationg0e36.pdf
    • http://titanovyi-filtr.ru/solucionario_matematicas_1_bachillerato_bruC3B1o6k3na.pdf
    • http://kindraretterath.com/ismart_110cc_engine_oil_capacity70ppi.pdf
    • https://cdn-cms.f-static.net/uploads/4409813/normal_600f40aa75c9c.pdf
    • http://poopo.ru/biwaragawugobimije478r1.pdf
    • http://neuroncraft.online/prepositions_worksheets_with_answers_for_class_9vzi83.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/fofeguj/burger_hd_pictures_free.pdf
    • https://s3.amazonaws.com/sosupejuxofedo/pesubunigigi.pdf
    • https://s3.amazonaws.com/fupanabivote/xofigaragegazikuvuxowi.pdf
    • https://s3.amazonaws.com/jevopemosod/rise_of_the_kings_hack_free.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_off0000f1bf.bin
3d8d8d16921562a408122ca8d9071598e628d967924efebccf6041f85f33c249
pdf-font-stream PDF embedded font (sfnt) at offset 0xF1BF 5376 bytes
font_01_sfnt_off000103f0.bin
2d30403e5c739b3b0afa2af9c76477e3e7841c2602d8ceeea19d150121dde12f
pdf-font-stream PDF embedded font (sfnt) at offset 0x103F0 11344 bytes