Malicious PDF — malware analysis report

Static analysis result for SHA-256 afcf589d404a30ba…

MALICIOUS

PDF

81.4 KB Created: 2021-04-07 20:51:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 52e791fae73cd2d2c618593c01661bfe SHA-1: 5897e47f28731c5ec24e280b8b9738299abc3b21 SHA-256: afcf589d404a30ba29c94aebd86fbf785cb165f028fe82ff8d7e9b5058f3562c
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to 'lozipotod.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to an 'affinity designer ipad user manual pdf'. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly indicate a malicious intent to redirect users to a compromised resource.

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://lozipotod.ru/wix?keyword=affinity+designer+ipad+user+manual+pdf PDF link annotation
    • http://jipuvojenibomig.22web.org/jopekazulesi.pdfIn PDF document text
    • https://cdn.sqhk.co/gilitejeku/gdqgdhj/sumativiw.pdfIn PDF document text
    • https://cdn.sqhk.co/dojoxuwote/7hghgha/29756625383.pdfIn PDF document text
    • http://taxokijoba.sportsontheweb.net/57426172061.pdfIn PDF document text
    • http://vaxenovutejuzid.sportsontheweb.net/tosefabibilomi.pdfIn PDF document text
    • http://jumazeg.iblogger.org/sokarosodujabegatotujup.pdfIn PDF document text
    • https://cdn.sqhk.co/sewuvavimebi/ijq8jjX/89774498079.pdfIn PDF document text
    • https://cdn.sqhk.co/kavatupopum/ggjN3ih/board_games_for_groups_of_10.pdfIn PDF document text
    • http://palubofapejuraw.mywebcommunity.org/93313930226.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lumajenav.epizy.com/equilibrio_acido_base_en_el_cuerpo_humano.pdfIn PDF document text
    • https://s3.amazonaws.com/fasomusogapovi/gixuvavivutefapetud.pdfIn PDF document text
    • https://s3.amazonaws.com/xotomisen/gecko_spa_flo_error.pdfIn PDF document text
    • http://xodupope.epizy.com/tafexusiz.pdfIn PDF document text
    • http://zesubilav.epizy.com/aha_asa_acute_stroke_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/mejifavo/47944486236.pdfIn PDF document text
    • http://dirulibas.onlinewebshop.net/28904814653.pdfIn PDF document text
    • http://xobofob.rf.gd/adalat_serial_hd_video.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/crayon_box_coloring_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc6e9c0d-da19-4b2a-b858-eb52d753ac7d/possessive_pronouns_spanish_quiz.pdfIn PDF document text
    • https://s3.amazonaws.com/xovajukoxin/59798101950.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5462a94-8f78-4446-9a5d-18d1b14d4953/gurinofapelu.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_off0000fe5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE5B 5452 bytes
SHA-256: ea73ebce1b71dca0e3950b114a798fe511cb514f53ee88bd6b9efc22526b4e35
font_01_sfnt_off000110e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110E1 11544 bytes
SHA-256: 7aa7347f823bfe14dfd0ea9951cedeeef8165f71d776c2198696e34c525eeee8

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