Malicious PDF — malware analysis report

Static analysis result for SHA-256 96d7c2ef719031f2…

MALICIOUS

PDF

99.1 KB Created: 2021-03-10 12:12:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b971ee2d58eb979de722596dfe768c6d SHA-1: b676b35aa08916d584334ccdb1e0ef2a6526e1c9 SHA-256: 96d7c2ef719031f256058ebbcb71ca297a1dfa92eafac632f86812dd3ab4c675
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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/aws?utm_term=what+does+propositional+knowledge PDF link annotation
    • http://effektzhizni.ru/bph_treatment_guidelinepu2rj.pdfIn PDF document text
    • http://amsidisi.xyz/ptcb_study_guide_freeyy1gx.pdfIn PDF document text
    • http://mon-cmbretagne.best/umc_hospital_telephone_numbergee40.pdfIn PDF document text
    • http://ottics.ru/purple_bed_sheetsjhtyr.pdfIn PDF document text
    • http://opencabinets.xyz/vesibesevubamatabolizodfp3a.pdfIn PDF document text
    • http://firstflirts.site/bimisijiniboxudulodiu4s93.pdfIn PDF document text
    • http://gufutaca5.xyz/70552259030ib2iz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/paxunu/82179372924.pdfIn PDF document text
    • https://s3.amazonaws.com/wizakokowe/66665333802.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/kotolewilus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cdba660b-e85b-441c-aacc-649309098624/meade_etx_125_photos.pdfIn PDF document text
    • https://s3.amazonaws.com/xisakazelelinim/shaheed_bhagat_singh_song.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/carrom_disc_pool_hack_version.pdfIn PDF document text
    • https://s3.amazonaws.com/mukutud/chamberlain_whisper_drive_plus_hd900d_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/mulerux/chhattisgarh_outline_map.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/latest_general_knowledge_objective_type_questions_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84576722-deba-43e4-ba71-157a494b6d32/conversor_g_l_a_mg_dl.pdfIn PDF document text
    • https://s3.amazonaws.com/midizaxopazeji/30445651775.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a19938d9-dead-403a-a38a-07b9bdc6326f/soccer_techniques_for_5_year_olds.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/bujigod.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/how_to_change_idylis_filter.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57b41eaa-6bbe-4c2f-a7fb-6ae023b35d39/53933045042.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a15745a9-f4ad-478b-803a-b6a8a6e0ca4f/rebelizakitelupapoki.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_off000146b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x146B8 5392 bytes
SHA-256: b85597b4016c9b88aa6af262c74bddf0505a5ca373619e5adccc50f74a6eb92c
font_01_sfnt_off00015922.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15922 10916 bytes
SHA-256: 2f1fab982e906011a17cc06172b1d4274ebd51efba7b083f505a6215216822e7

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