Malicious PDF — malware analysis report

Static analysis result for SHA-256 092b8ded995110d8…

MALICIOUS

PDF

71.8 KB Created: 2021-02-23 17:45:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: ea5d9158512d467f0dda437323299e96 SHA-1: 57e4063c61ed3dde677b85e11c507605e90e1f07 SHA-256: 092b8ded995110d8da03caab261c61e49e7be71e185962c098498af952773d5b
96 Risk Score

Malware Insights

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

The file is a PDF document detected as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body contains garbled text but includes what appears to be a product name, possibly as a lure.

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://jottigo.ru/wb?keyword=fender%20mustang%20i%20v2%2020-watt%201x8 PDF link annotation
    • http://uspeh.icu/jailbreak_tv_cubevc7qw.pdfIn PDF document text
    • http://rerubin.space/66887819571jsjoy.pdfIn PDF document text
    • http://leree6.club/dermatophytes_definitionjivou.pdfIn PDF document text
    • http://znasila.ru/jumaph5vq0.pdfIn PDF document text
    • http://mebel-albero.ru/lifeboat_ethics_questions_and_answerse9yq0.pdfIn PDF document text
    • http://afracheat2.xyz/glimpses_of_world_history_banglatae6j.pdfIn PDF document text
    • http://ipoteka.net/if_function_excel_multiple_sheetslta58.pdfIn PDF document text
    • http://copyright-security-ig.com/849108780088ide3.pdfIn PDF document text
    • http://presentinsta.online/508145238474gg1h.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/kotidox/party_poster_template_free_psd.pdfIn PDF document text
    • https://s3.amazonaws.com/resixexi/2085027111.pdfIn PDF document text
    • https://s3.amazonaws.com/metakibeme/giwovafo.pdfIn PDF document text
    • https://s3.amazonaws.com/tikoweravisixu/parasitic_zoonotic_diseases.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/mimuniwegemumivinewi.pdfIn PDF document text
    • https://s3.amazonaws.com/rimepusox/what_does_the_love_language_quality_time_mean.pdfIn PDF document text
    • https://s3.amazonaws.com/banula/81719205808.pdfIn PDF document text
    • https://s3.amazonaws.com/kukazowox/badrinath_movie_songs_ing_come.pdfIn PDF document text
    • https://s3.amazonaws.com/zetubakuz/drawing_book_online.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_off0000d6f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6F8 5840 bytes
SHA-256: 3c52f392e6cb82c1f0cc8bb0fb0a5ecec5fb40049a013e57eb1eaef63ee77621
font_01_sfnt_off0000eae4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAE4 11224 bytes
SHA-256: 35e74dfb550d5dfe7f2c6d7a8a9449a8d843d16f69f02559155b3c7eccdfeec8

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