Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d5a243e378936bc…

MALICIOUS

PDF

87.7 KB Created: 2021-02-09 12:03:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: b8b21f86c7c6cfb7c8f4acd08b50348a SHA-1: c351d863db883545b60abb23b825c5500c04a15f SHA-256: 7d5a243e378936bc3590c4821ba6519a4e22040c89b1a18d7f515a0894920c52
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous external URIs, with one prominent URL leading to a domain flagged for potentially malicious activity. The 'ML_NYX_PDF_MALICIOUS' and 'CLAMAV_DETECTION' heuristics strongly indicate malicious intent. The document body, though partially corrupted, suggests a lure related to 'Easter colouring sheets', which is likely a pretext to drive users to the malicious URL.

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 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.
  • 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://jottigo.ru/aws?utm_term=easter+colouring+sheets+free+printable PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4446917/normal_6012f91c2a258.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464542/normal_601eda1f1185d.pdfIn PDF document text
    • https://girewatadetax.weebly.com/uploads/1/3/2/6/132681062/6899081.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481157/normal_601e085257f7b.pdfIn PDF document text
    • https://jikezukirex.weebly.com/uploads/1/3/1/3/131383594/376826.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368503/normal_5ff509ec8befa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387702/normal_6013298248fdb.pdfIn PDF document text
    • https://puxibaso.weebly.com/uploads/1/3/0/9/130968956/5783258.pdfIn PDF document text
    • https://tewabigonin.weebly.com/uploads/1/3/4/7/134760563/wobutatelatitel_sabejumanofuvo_fimoserunomip.pdfIn PDF document text
    • https://nadaroxiwe.weebly.com/uploads/1/3/4/6/134688146/4345593.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/vetamedisoz/39452666094.pdfIn PDF document text
    • http://woxutonugosafer.epizy.com/kudizurafiv.pdfIn PDF document text
    • http://gazezubutajon.rf.gd/zowafefabuziwujas.pdfIn PDF document text
    • http://pumejusatojajeg.rf.gd/4138475241.pdfIn PDF document text
    • http://wiwawilif.epizy.com/nfl_week_11_picks_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/nitizobuv/example_contract_law_problem_question_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/mufukep/rukuvakojajunebovefu.pdfIn PDF document text
    • http://rusozetowozo.epizy.com/delay_analysis_report.pdfIn PDF document text
    • http://xojakejib.epizy.com/niall_horan_this_town_song.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzotisenixava/pusodexomoji.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/2015_challenger_srt_392_performance_upgrades.pdfIn PDF document text
    • http://mivuturirem.rf.gd/tomedunusanerixepepekuzis.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010ba1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BA1 5256 bytes
SHA-256: b4813c6483fed72357f381142409e06caedb9dc5de9c581fac2534103ac7278b
font_01_sfnt_off00011d6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D6F 11120 bytes
SHA-256: 79668d8153b8402cb034259943b881331bea57d108943c37578b938b4da79701
font_02_sfnt_off000142c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x142C0 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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