Malicious PDF — malware analysis report

Static analysis result for SHA-256 54613b83a5777f4c…

MALICIOUS

PDF

83.6 KB Created: 2020-11-21 07:40:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 296977896c8e36df49986d8ed8caad0c SHA-1: 95f0a24cbaca6fe94bf441fb961638a623714a62 SHA-256: 54613b83a5777f4cfe0f77f319ee3747e20d3a39cbf601ea10f3d5f4f3865d48
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 0.9997

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://traffine.ru/123?utm_term=patty+and+selma+smoking PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fotojipifuzitul/lofesemonoviw.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/87908603570.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f5c2e73-2407-4f9b-8302-8d62c5fcd7b3/75693545673.pdfIn PDF document text
    • https://s3.amazonaws.com/kotenu/ti_nspire_cas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ee5451a-db01-4e79-ab4b-365824d0a025/deredejobos.pdfIn PDF document text
    • https://s3.amazonaws.com/kefefetafij/fema_is_317_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/kamiwoweviliw.pdfIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/70527427560.pdfIn PDF document text
    • https://s3.amazonaws.com/leributafa/ridgid_r4510_repair_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/213-262-7877__-7926.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/psychiatric_rehabilitation_program_policies_and_procedures_maryland.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/cattiva_condotta_mary_gaitskill.pdfIn PDF document text
    • https://s3.amazonaws.com/gujutavevive/espn_basketball_player_rankings_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/what_is_parthenogenesis.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f4f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4F7 5216 bytes
SHA-256: 8205db1ba2cee5d15880844c5c1977bdcba5901f52b16bcb5ed375409c9ade8d
font_01_sfnt_off000106b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106B8 10844 bytes
SHA-256: ed704deae431bf6dd6c27e61de249fe63a7b301dd6bf02eb77a3c233481f284a
font_02_sfnt_off00012bed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12BED 16164 bytes
SHA-256: 8a02c072109af67031be64374fa0b0107fc8569691e792053b23713e8e8f99b2

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