Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d7f674edd3d907a…

MALICIOUS

PDF

78.2 KB Created: 2021-01-23 09:34:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 32e4c78a2d116a36b37dc7f11d59f0fc SHA-1: 97c27718010dc03c9d2f9eefcc5c6bfa022f6d8c SHA-256: 9d7f674edd3d907aba4c8cee2a1505dfc06f0e4af927711abe247ad1383bf85a
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://traffmen.ru/123?utm_term=clasificacion+de+producto'. This indicates the document's primary purpose is to lure the user to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious, supporting the phishing or malware distribution intent.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://traffmen.ru/123?utm_term=clasificacion+de+producto In PDF document text
    • http://jajosez.iblogger.org/dark_souls_3_npc_quest_guide.pdfIn PDF document text
    • http://vibigalobonewil.iblogger.org/69809444773.pdfIn PDF document text
    • https://cdn.sqhk.co/rakapuvad/zhbKrSY/download_game_mopar_drag_n_brag_mod_apk.pdfIn PDF document text
    • http://xofenejilomoz.iblogger.org/55877778687.pdfIn PDF document text
    • https://cdn.sqhk.co/wemorapi/7hdv7hj/96125298292.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kesekerezox.epizy.com/rorurunapawolelulavodino.pdfIn PDF document text
    • http://zurabogefu.rf.gd/fanuc_arc_mate_100ib_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/audiosurf_android_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/gateme/fulagedinejiduxi.pdfIn PDF document text
    • http://fuvovidesom.epizy.com/soothing_baby_music.pdfIn PDF document text
    • https://s3.amazonaws.com/mojivikapeti/online_diet_planner_template.pdfIn PDF document text
    • http://soxuxemakim.rf.gd/epilepsy_treatment_guidelines_2019.pdfIn PDF document text
    • http://mawarine.epizy.com/iroquois_falls_weather_report.pdfIn PDF document text
    • https://s3.amazonaws.com/wulagisi/57509136959.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/three_little_birds_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/tawosutosuxi/catriona_gray_answer_tondo.pdfIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/bootstrap_responsive_admin_panel_template_free.pdfIn PDF document text
    • http://refewebol.epizy.com/betusinusoxinoxufufuvotib.pdfIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/golang_echo_template.pdfIn PDF document text
    • http://mafakizukizunof.epizy.com/banglarbhumi_plot_information_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_off0000f611.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF611 5052 bytes
SHA-256: 6910e968286e49c5ba6a448267d96bf762553e99969b430798778cfc506a5f84
font_01_sfnt_off0001074b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1074B 10744 bytes
SHA-256: 8c4b9fe393330adc1052ff682431d3d6b3bff9546777162b7660171bc462eb77

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