Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fb34d4797200409…

MALICIOUS

PDF

71.3 KB Created: 2021-02-21 21:21:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 133b8ddfb4451f9a898cc2810ca8f83b SHA-1: 155f6bf30799d31738329dd3f1ada449cd599519 SHA-256: 3fb34d47972004098d84694c26de4f26980d3476ab17ff68b90bfd5c99b964b6
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://crophysi.ru/wix?keyword=king+star+king In PDF document text
    • https://cdn.sqhk.co/bomagomax/bbgdghI/oh_baby_song_lyrics_in_telugu.pdfIn PDF document text
    • http://copyright-rules-help.com/71527524914yhq61.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427509/normal_5fd83777319e7.pdfIn PDF document text
    • https://cdn.sqhk.co/jopubelo/fhigcfO/19094916206.pdfIn PDF document text
    • https://reledizov.weebly.com/uploads/1/3/0/7/130775001/petomadimide.pdfIn PDF document text
    • https://cdn.sqhk.co/moromasi/aopjcv8/cowboy_boots_discount.pdfIn PDF document text
    • https://dikemogegopur.weebly.com/uploads/1/3/1/4/131406608/7842976.pdfIn PDF document text
    • http://mists.space/russian_rider_online_pcndtv2.pdfIn PDF document text
    • http://keepmaxi.space/bing._com_app_for_androidugluk.pdfIn PDF document text
    • https://cdn.sqhk.co/jisokemefaz/jfjcPjt/snapchat_filter_for_dogs_2019.pdfIn PDF document text
    • https://rotalexabif.weebly.com/uploads/1/3/1/3/131381819/tufolawowidifota.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449627/normal_6011b4f4bcf97.pdfIn PDF document text
    • https://cdn.sqhk.co/mugejufunij/cVPhdgi/switch_pro_controller_drift_warranty.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458856/normal_601683c74c1d5.pdfIn PDF document text
    • http://presalle.xyz/icd_9_code_for_sepsis_due_to_utip4sib.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403421/normal_600bed38a8c1f.pdfIn PDF document text
    • http://nesobaka9.xyz/93964609017q3t57.pdfIn PDF document text
    • http://negozio50sconto.info/how_much_school_to_be_a_vet_assistantfia55.pdfIn PDF document text
    • https://cdn.sqhk.co/juvowisire/jggjLie/ice_cream_blackpink_selena_gomez_ariana_grande.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000db4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB4F 4852 bytes
SHA-256: ea4f225c957abefb3309d2fe65527260cc51c9eac33a3088616766e0767161ac
font_01_sfnt_off0000ebea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBEA 10644 bytes
SHA-256: ec54a7ab3f5454e33b2b1b17942830e14a8093c93376a64dc2480562a1bbeac3

Open this report in the interactive analyzer, or submit your own file for analysis.