Malicious PDF — malware analysis report

Static analysis result for SHA-256 9be0d6644e326545…

MALICIOUS

PDF

60.2 KB Created: 2020-12-17 23:43:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: fd6369039901680b41a8d99755303304 SHA-1: 2ddbb34e1431196bae231dcab4afdb5e68795be3 SHA-256: 9be0d6644e3265451144b5e4f101c860548f6e740f3e925811e2056b5c4b10fd
182 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file was flagged as malicious by multiple heuristics, including a critical alert for a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to parcel searches, aligning with the 'SE_INVOICE_LURE' heuristic. The primary IOC is the malicious URL embedded within the document, which is designed to redirect the user to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://gettraff.ru/strik?utm_term=yavapai+county+treasurer+parcel+search In PDF document text
    • https://jebunofom.weebly.com/uploads/1/3/4/4/134468214/pajuvipovimuf.pdfIn PDF document text
    • https://gililizu.weebly.com/uploads/1/3/4/7/134770310/zaset.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415974/normal_5fbec663e74f5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382613/normal_5fbf04eee1172.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389576/normal_5fd3948028193.pdfIn PDF document text
    • https://dufevirefat.weebly.com/uploads/1/3/1/4/131438490/naketugemokeb.pdfIn PDF document text
    • https://rajerese.weebly.com/uploads/1/3/4/3/134387708/zupejobusaj.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/kizuporowefib/big_ideas_math_algebra_2_answer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/184e0130-68fa-4649-b265-f1aaa7d5889c/toxituzul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8105ea1-482a-4a8c-ad02-8fce62503b10/police_car_parking_games_unblocked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/faf81e9d-b8c4-49b2-b2bb-b43a5eeb9be5/roblox_piano_sheet_music_undertale_songs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2cb1b00b-1acc-45ae-a607-009cfb8981b8/vunile.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_off0000b1db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1DB 5144 bytes
SHA-256: cec65a8f23288196f526d1baa0e8c5f58fd5afd4ba737a577f1cb6c137429205
font_01_sfnt_off0000c364.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC364 9664 bytes
SHA-256: 751f915442fade49e9566b664d4412a81d60a6e11b1abb639d78ba949a765dbd

Open this report in the interactive analyzer, or submit your own file for analysis.