Malicious PDF — malware analysis report

Static analysis result for SHA-256 225446dcc04a77b3…

MALICIOUS

PDF

77.8 KB Created: 2021-04-01 06:45:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 43bdddd7f07f0633b07d4b0071107d23 SHA-1: 10a75e6c25159adc621f10c8f58e6a52d4bda19b SHA-256: 225446dcc04a77b3473b56fdaf0d1dad34298f1a04aa4362ad1c90c0ca698f5e
156 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 a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://jumiwimov.ru/wix?keyword=black+spindle+solo+guide+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4405639/normal_603ab546bc270.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466151/normal_60419f80caba2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489607/normal_60331d324b464.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471249/normal_60607c23a159b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412160/normal_5ffd30760b36c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476270/normal_600761cad43ff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500670/normal_5fdd37f4d8a32.pdfIn PDF document text
    • https://gibinefofagal.weebly.com/uploads/1/3/4/6/134668975/fabagex_wujuli_dalajazavobafu_bozuwugaxujip.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417527/normal_6030a6d9ce06e.pdfIn PDF document text
    • https://sidedelozamuk.weebly.com/uploads/1/3/1/4/131482822/xulazipoluvovo_nezamazos.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402000/normal_600e397c0f618.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425760/normal_600a05c02bf74.pdfIn PDF document text
    • https://ziwagunu.weebly.com/uploads/1/3/4/8/134883986/zeruvogowipeji-zexisis-pewubam-vabugem.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/dazawojob/general_electric_33709_4-device_universal_remote_control_code_list.pdfIn PDF document text
    • https://s3.amazonaws.com/jotizifime/what_are_folkways_answers._com.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb97abb4-5e31-4618-9079-fda8ba79aca5/mfj-949e_deluxe_versa_tuner_ii_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/771956b9-45b4-447d-879d-69547d7a64a9/sotakamemowurijarolub.pdfIn PDF document text
    • https://s3.amazonaws.com/folexapurilowe/fositefi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e6beac5-c679-4a60-a0db-94df398d880e/jaxuwidaxufosurezovas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b23bd97-15e4-4836-b747-489026cf9661/gas_pipe_line_installation_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/collier_county_fl_red_tide_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c479963-67f4-43a9-9d05-c47b8f0644d3/zatitu.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e5fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5FD 5140 bytes
SHA-256: bffc3f493f76c7ed54371d319cf0665c30d01673533f3b5bb5e455502ac56976
font_01_sfnt_off0000f78a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF78A 10600 bytes
SHA-256: 19abf36129553753a136c4f147c19cf8443a6bea509d5e6ab464207d0deacbd5
font_02_sfnt_off00011bb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BB9 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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