Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f169ce1c3c8e866…

MALICIOUS

PDF

78.5 KB Created: 2021-04-28 11:41:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: c01ad48cdaec9d4072698577519ee7f6 SHA-1: 28377756e3c1bc49f6e7ffc6c8ccfd03c786b7a1 SHA-256: 8f169ce1c3c8e866435a6131d183056922be824df1eda44271968ca8cecdb675
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, identified as a phishing or malware distribution lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to lead the user to a malicious resource.

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://soxebez.ru/strik?utm_term=list+of+danielle+steel+books+in+alphabetical+order PDF link annotation
    • https://cdn.sqhk.co/dujagazatad/ehchfia/9917542966.pdfIn PDF document text
    • https://cdn.sqhk.co/xenudipu/ahhicTU/dynamons_world_game_mod_apk.pdfIn PDF document text
    • http://tuvuvadirozo.iblogger.org/positional_vertigo_exercises.pdfIn PDF document text
    • http://lesopotifazag.iblogger.org/binomial_system_of_nomenclature.pdfIn PDF document text
    • https://cdn.sqhk.co/vejuwozigef/jeWRgdt/muzinoretegimiwunemigito.pdfIn PDF document text
    • https://cdn.sqhk.co/latosagax/Kkgjfhj/remamisanerureduka.pdfIn PDF document text
    • https://cdn.sqhk.co/navimoxa/ghgfOjh/96700506486.pdfIn PDF document text
    • https://cdn.sqhk.co/dibidoretu/ggThi0w/90667050119.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/dagasopones/45838140154.pdfIn PDF document text
    • https://s3.amazonaws.com/norozovijalu/zujonoxofuzaduxo.pdfIn PDF document text
    • https://s3.amazonaws.com/dukavunivifa/libipafafiwiwa.pdfIn PDF document text
    • http://sokobob.epizy.com/nulivu.pdfIn PDF document text
    • http://kukuzetu.rf.gd/ducati_monster_2021_price_australia.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/business_sale_and_purchase_agreement_template_nz.pdfIn PDF document text
    • http://wapudajikipidem.epizy.com/bugawaxotasux.pdfIn PDF document text
    • https://s3.amazonaws.com/pirosisob/60547146099.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/adonai_singers_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/jikubezo.pdfIn PDF document text
    • http://bukinajomo.epizy.com/xipitowozave.pdfIn PDF document text
    • http://bulagim.epizy.com/88793732409.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_off0000f310.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF310 5388 bytes
SHA-256: 5f1d877b3f820295dda9cc3a8262f59889aea2b3df849d65069631cf89cfc403
font_01_sfnt_off0001055e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1055E 11644 bytes
SHA-256: 9812b70a65bdf1637423186eebe2b41e04bdbbb75ef0ffd2a12574ad9a69e5fc

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