Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2d09247f59e2f2f…

MALICIOUS

PDF

74.6 KB Created: 2021-02-26 19:34:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 1986c73c68fc2e6487a569e4ebad7ba5 SHA-1: 5c4173016bce3a8bb98db4c0b4ab7d175ec114e5 SHA-256: a2d09247f59e2f2f6a288e39165058eab73a9498b80fa394e5aa2f397821d068
104 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, with a high risk score. It contains an embedded URI pointing to 'resalured.ru', which is likely a phishing or malware distribution domain. The document body, though truncated, suggests a lure related to a generator service manual, aligning with a phishing or social engineering attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://resalured.ru/strik?utm_term=honda+eu3000is+generator+service+manual+pdf PDF link annotation
    • https://cdn.sqhk.co/depivuni/cjjKmMZ/xakav.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489404/normal_5feefd49de515.pdfIn PDF document text
    • http://gagimubu.mywebcommunity.org/vajutiwavopaxa.pdfIn PDF document text
    • https://cdn.sqhk.co/jedugifaxido/jREdljh/werewolves_choice_of_games_romance.pdfIn PDF document text
    • http://xiwakaravivomik.scienceontheweb.net/2454893135.pdfIn PDF document text
    • http://lubenoredeji.mypressonline.com/dufojexeruxosipofedegijob.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/mujesogi/61038000244.pdfIn PDF document text
    • http://jajowisomipuw.epizy.com/74518625085.pdfIn PDF document text
    • https://s3.amazonaws.com/dobesogum/stack_ball_game_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/bibejovixapis/rca_portable_dvd_player_drc6338_manual.pdfIn PDF document text
    • http://vilepobafomunow.atwebpages.com/lukerowudulabefob.pdfIn PDF document text
    • http://gowefemum.epizy.com/95066060133.pdfIn PDF document text
    • https://s3.amazonaws.com/fajixe/custodial_staffing_guidelines.pdfIn PDF document text
    • http://jenofabejuvokag.epizy.com/zidepizamuwitepejapu.pdfIn PDF document text
    • http://lufadavebu.epizy.com/34413957658.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_off0000e6a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A3 5800 bytes
SHA-256: 55b8cde8e01a7e26705d3b0f6e758acf30b42b4daf4c358e108109e5ee6cc04f
font_01_sfnt_off0000fa54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA54 10136 bytes
SHA-256: cbb8b27810fb03705b5744f9b4724077fc6251abc016539658685c7851013dd2

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