Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe7e9ad70edb31bf…

MALICIOUS

PDF

75.0 KB Created: 2020-12-30 04:51:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 9bfec67b53f1909abdc7da4c5e635f9f SHA-1: 2cdaf33a68c018e3ce2a0ce9ee5ac451d606ea0e SHA-256: fe7e9ad70edb31bfabafd5e6316957c2161646d68273e965db812198e17baaab
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL, 'https://trafficel.ru/wb?keyword=uphill%20rush%203%20hacked%20unblocked', suggests a lure related to game hacking, likely to trick users into downloading further malware or engaging in phishing. No scripts were extracted, but the PDF structure and embedded URI are sufficient indicators.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafficel.ru/wb?keyword=uphill%20rush%203%20hacked%20unblocked PDF link annotation
    • https://cdn.sqhk.co/bibunifez/chjiagi/world_war_2_dates_and_countries_involved.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390052/normal_5fdc12e299757.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368478/normal_5fba6c8725d6f.pdfIn PDF document text
    • https://cdn.sqhk.co/vakanaju/ihcOo9M/7097408873.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454286/normal_5fa5c3b57fb9d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409107/normal_5fc342c411870.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495254/normal_5fd1e29c2ca3f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368497/normal_5fb261315800c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479439/normal_5fadcbbeb1ca8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/65349972-ea48-4ab8-81a3-03531d07cae2/kotutap.pdfIn PDF document text
    • https://s3.amazonaws.com/dibedamoka/deathtrap_game_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13683a27-2c70-4fd4-8c1f-561af501901f/kugurebeva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/619fe4b9-24ae-4d84-aa07-c26b178694d5/pedemerevakubi.pdfIn PDF document text
    • https://s3.amazonaws.com/xajowu/20888280733.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41886f81-d593-4c2c-bb51-00b64cc30177/65343086194.pdfIn PDF document text
    • https://s3.amazonaws.com/sazariwapa/administrator_definition.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_off0000e66d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE66D 5520 bytes
SHA-256: 837544dd761eeacd3a07e8c41969cd2e7791e75a22ffed1881bb21d8106f3244
font_01_sfnt_off0000f922.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF922 12412 bytes
SHA-256: a252487a2189ed4e4bbcf026a76ae5b858fe15bbc6d8484b23b153bd978256df

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