Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ba00f48052b2975…

MALICIOUS

PDF

86.1 KB Created: 2021-04-11 23:41:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 97a18225ac0a67eb6d9d91785f76c6e6 SHA-1: 2ef1fe2c7ce1b4bad6e4ae54f618af5937e7ec92 SHA-256: 1ba00f48052b29755440567a53cee32d8169814b37af70dd5f1bb4723bb8795d
126 Risk Score

Malware Insights

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

The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URLs, many hosted on disposable domains, suggesting a link farm or phishing lure. The PDF structure and embedded content, though heavily obfuscated, point towards an attempt to redirect users to malicious sites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://botokaw.ru/strik?utm_term=hi-point+c9+review PDF link annotation
    • http://roxelejabojafe.scienceontheweb.net/icao_annex_14_deutsch.pdfIn PDF document text
    • http://widaxaruko.mypressonline.com/83375741395.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387061/normal_5fcaf810907b6.pdfIn PDF document text
    • https://cdn.sqhk.co/navimoxa/ijMg3if/nixuf.pdfIn PDF document text
    • https://nudezodubazez.weebly.com/uploads/1/3/1/1/131164524/3867871.pdfIn PDF document text
    • https://vuduzilir.weebly.com/uploads/1/3/1/8/131857383/121cd4853a01c.pdfIn PDF document text
    • https://s3.amazonaws.com/limewub/lozutoluwetap.pdfIn PDF document text
    • https://jejademi.weebly.com/uploads/1/3/4/2/134266227/nidewutefule.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/47987467943.pdfIn PDF document text
    • http://prognoz-football.club/69844506721zx82w.pdfIn PDF document text
    • https://lalemudisezevo.weebly.com/uploads/1/3/4/3/134359520/4a16d5ac.pdfIn PDF document text
    • http://kerosijuvibeg.scienceontheweb.net/cefr_b1_tests.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408709/normal_6047ce000893a.pdfIn PDF document text
    • http://mixutadumekaje.mypressonline.com/70911313801.pdfIn PDF document text
    • https://cdn.sqhk.co/rapigufagi/lhhhEb5/sword_art_online_creator_apologizes.pdfIn PDF document text
    • https://cdn.sqhk.co/fikalibumi/b1jcigG/70827298169.pdfIn PDF document text
    • http://creamwalls.space/50999370707s9vww.pdfIn PDF document text
    • http://migerov.xyz/173512191931tozk.pdfIn PDF document text
    • https://s3.amazonaws.com/zoluwivebiro/xozekajelomisoduzijidodip.pdfIn PDF document text
    • https://cdn.sqhk.co/jimavidozeze/hbOijjc/prison_break_season_5_episode_10.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fazovalekotevo.onlinewebshop.net/jubipejasufum.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD20 4808 bytes
SHA-256: b5bb1dcadb94c7ffb428c945322bcffb57ccdfe300a249661d4d12e1390186ee
font_01_sfnt_off00010daa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DAA 11760 bytes
SHA-256: 7ceb6424f93d03af234353efd10d9d8bce782697d6d293f22b4a3720b8c0399f
font_02_sfnt_off000135f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135F5 16084 bytes
SHA-256: 9c0b324cb00f432843e7bf6aa6681d4ee1950797a85fd697fe0bc8b121e8710a