Malicious PDF — malware analysis report

Static analysis result for SHA-256 d700a8b92bae0c4d…

MALICIOUS

PDF

67.8 KB Created: 2021-01-22 12:52:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 099075ea98b3e7c47ecb99490c5190b5 SHA-1: 0cbe3ae87e112388ae26a5e892b2c05fff23c11e SHA-256: d700a8b92bae0c4d0bc9fb5c16684470221b6a2fa11956c63237cc655b65c847
146 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. Heuristics indicate it functions as a link farm and employs a callback lure, prompting users to contact a number for fake issues. While no scripts were directly extracted, the presence of external URIs and the overall structure suggest it's designed to lead users to malicious content or initiate fraudulent phone interactions.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://baarspo.ru/123?utm_term=sony+xplod+1000+watt+subs PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4450513/normal_5fc8a797f0431.pdfIn PDF document text
    • https://cdn.sqhk.co/vujagefamig/kMNb1gg/red_hair_color_wheel_chart.pdfIn PDF document text
    • http://tonorubur.22web.org/65888451769.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486033/normal_5ff5f7ca89420.pdfIn PDF document text
    • http://fasibada.22web.org/afrikaans_gospel_music_video.pdfIn PDF document text
    • http://xinumazujo.iblogger.org/54972474366.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459780/normal_5ffd15de86d63.pdfIn PDF document text
    • https://xavexipaw.weebly.com/uploads/1/3/1/6/131636683/lojetajifujos-webozivanobaw-gutarozidazov-karusek.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/HOjdAih/ranirolez.pdfIn PDF document text
    • https://cdn.sqhk.co/wakivugex/inid9eZ/woludugekasexupi.pdfIn PDF document text
    • https://gugibutuxu.weebly.com/uploads/1/3/2/8/132814167/3136940.pdfIn PDF document text
    • https://lepifokofufup.weebly.com/uploads/1/3/4/0/134018260/sukonipijaporov.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458614/normal_5ff079b7a03c8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fuwotatikiluwa.epizy.com/62359008182.pdfIn PDF document text
    • http://wulekugigewipo.epizy.com/2453821359.pdfIn PDF document text
    • http://muwojes.epizy.com/mcse_interview_questions_and_answers_doc.pdfIn PDF document text
    • http://vegunag.rf.gd/xsplit_broadcaster_pro.pdfIn PDF document text
    • http://sajetubaj.epizy.com/android_studio_install_apk_stuck.pdfIn PDF document text
    • http://boxugajot.rf.gd/52477894319.pdfIn PDF document text
    • http://felubumasosazi.epizy.com/bournville_village_primary_school_uniform.pdfIn PDF document text
    • http://xazitew.epizy.com/employment_history_report_ssa.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_off0000c893.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC893 5556 bytes
SHA-256: 42771464988d16d9c3c00c053d7c1d30af14382a6260bc5a5dcf0c77533c321c
font_01_sfnt_off0000dba6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBA6 11360 bytes
SHA-256: 300f41bc3e29dbc0496b6fce2d5c84976b92632e9f7f9eccb3ebb17a62b5c273

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