Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee84037ec5aa0bf2…

MALICIOUS

PDF

77.9 KB Created: 2021-03-04 03:46:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 9a5a30b656e5881f44dae148955f0525 SHA-1: 15572f4146acaf7026c132812852b006a8d17b62 SHA-256: ee84037ec5aa0bf22631de21d6fe5fe575d0cf119bd82259734429e299907284
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to exploit users through a phishing lure, likely delivered as a spearphishing attachment.

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://nipisod.ru/123?utm_term=merchant+of+venice+analysis+pdf PDF link annotation
    • https://cdn.sqhk.co/tesigasefaxe/jiOjejc/elemental_dungeon_apk.pdfIn PDF document text
    • http://suzepiju.iblogger.org/41861149076.pdfIn PDF document text
    • http://boomua.site/blacksmith_anvil_stove_manual4vow5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366405/normal_6039d18e4c7ac.pdfIn PDF document text
    • https://cdn.sqhk.co/dijogiper/ja2XuC2/classic_arcade_nes_emulator_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496381/normal_603b558270d85.pdfIn PDF document text
    • http://gtmedis.com/group_theory_definitionq95lh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422137/normal_6038fca9af884.pdfIn PDF document text
    • https://cdn.sqhk.co/milasutepi/hfgekQ3/70735841832.pdfIn PDF document text
    • http://9gusevshop.space/sujazogunaxegalosu6y7dv.pdfIn PDF document text
    • http://cardioactiveuficiale.site/47775357961egwy3.pdfIn PDF document text
    • https://cdn.sqhk.co/pasededi/hdhbRyv/mma_manager_apk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wamovesomawegun.rf.gd/wepupamejopegapaborisib.pdfIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/juwawojofunidowefibu.pdfIn PDF document text
    • http://rebokomixuxoj.epizy.com/laxovutox.pdfIn PDF document text
    • https://s3.amazonaws.com/jupudizadid/lowexevedagixozi.pdfIn PDF document text
    • https://s3.amazonaws.com/bikikanafopavu/82823285424.pdfIn PDF document text
    • https://s3.amazonaws.com/zodererezuzuxi/beta_hcg_report_analysis.pdfIn PDF document text
    • http://dutowatakeviw.epizy.com/how_to_turn_off_bluetooth_on_polk_soundbar.pdfIn PDF document text
    • http://fulawumobolofog.epizy.com/95634967899.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_off0000f427.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF427 5408 bytes
SHA-256: 57ecf56021aaa0491c14af0cd1a01722186af6970e9a7f19a91bda04557f6924
font_01_sfnt_off000106a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106A6 10648 bytes
SHA-256: 2119eabbacadf17cf31433c9b1487ef43be7ea749f7fa3ce75c0fafe6f3401e1

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