Malicious PDF — malware analysis report

Static analysis result for SHA-256 d162dfa09278e291…

MALICIOUS

PDF

75.5 KB Created: 2021-03-29 05:49:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 2aa9a132184110a6022fe64bfa89b908 SHA-1: 11e350f4effc65c6eee29ed44bcf4bdc9288ac25 SHA-256: d162dfa09278e2919de7542b20a39d2571d43d445df7658c0e2767f6030afafe
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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. 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 0.9998

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://ponafet.ru/123?utm_term=black+market+android+games+free PDF link annotation
    • https://cdn.sqhk.co/parabeset/XPihhih/26495577249.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496380/normal_5fdafd1d93087.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453906/normal_604dc2329cdd2.pdfIn PDF document text
    • https://cdn.sqhk.co/wodelaganav/9jiWihq/14102582371.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384459/normal_605429053d2ab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391903/normal_601a2d3a1b839.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381988/normal_5fef7e2b2d3b5.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/d335e7ba-42bb-4765-b6a1-42769bbc6f7e/what_does_god_say_about_being_alone.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/bookkeeping_excel_sheet_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4de02e57-b069-4c84-a96c-8483771ac1ad/how_to_hook_up_ice_maker_to_pvc_water_line.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b61c835-5dc4-4bd7-9660-e09f50577e5c/kepajaju.pdfIn PDF document text
    • https://s3.amazonaws.com/xidazeze/kefar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7610122-fcab-44b7-a47f-69bbbb84e475/garmin_forerunner_920_watch_band.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3d8b457-8643-411c-8fd7-12ce5b7104da/nhc_thiu_nhi_con_c_vng_bi_trong_b_nc.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_off0000e85f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE85F 5456 bytes
SHA-256: 35aba341dbf588f64e983c6f222e9ecf774cdb57e47ac6eb49f4b8fdc290afac
font_01_sfnt_off0000fadb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFADB 12128 bytes
SHA-256: d1d05be65b2ae26bc9613df35ece03001ecd994b2c663e6573be218bf0a357d6

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