Malicious PDF — malware analysis report

Static analysis result for SHA-256 29ae11c819642ff5…

MALICIOUS

PDF

159.0 KB Created: 2020-11-11 14:13:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: af9f95db982fc919ac859c684b898291 SHA-1: 14c737a5cd7352e02e1453f36e1a5a6c18c7f040 SHA-256: 29ae11c819642ff5ca01d0a2ce6acb7e7bd1a6f3cf64b76827c34aacf99bdc37
116 Risk Score

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. It uses a callback-phone (TOAD) lure. 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 0.9990

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
  • 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.
  • 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://traffnew.ru/123?keyword=assata+shakur+biography+pdf PDF link annotation
    • https://maxuvejalova.weebly.com/uploads/1/3/4/2/134265339/kolixariwiju-ripokegomo-sajevagufuga.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/napoledunadigo/pathology_mcq_books_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/jevuxozazebazug/5226657782.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1efc12b9-daa9-4f58-ad23-987d6b9317a5/64641921870.pdfIn PDF document text
    • https://s3.amazonaws.com/dazemi/fosivulupafurovof.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/green_supply_chain_management_book.pdfIn PDF document text
    • https://s3.amazonaws.com/jijumupade/5332697639.pdfIn PDF document text
    • https://s3.amazonaws.com/bikikanafopavu/bismillah_in_arabic_calligraphy_text.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9dc6eda7-17a6-4e41-affb-e3d9810e8be1/33031312919.pdfIn PDF document text
    • https://s3.amazonaws.com/vukusa/86271296896.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_off000233cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x233CC 5564 bytes
SHA-256: 4ede99a4f4d7e542659130e3ce421b919cbc02f6c216543d57c233992613f2ba
font_01_sfnt_off000246be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x246BE 11932 bytes
SHA-256: 2de100ea406564261807e08b989c7e6739860838dd41be0581bd0a9d38bfa558