Malicious PDF — malware analysis report

Static analysis result for SHA-256 2856661d1a65c63b…

MALICIOUS

PDF

69.4 KB Created: 2021-02-14 08:21:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 696dc6b96a1efca6062f05fa7b0cb743 SHA-1: aa20082e93f9ffa794ee1b4f3ad51120f72bc6ae SHA-256: 2856661d1a65c63b76a19219db8590068e715c2bc1e682746e40d8775cd1b751
146 Risk Score

Malware Insights

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

The sample was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. The heuristic 'SE_CALLBACK_LURE' strongly suggests a callback phishing or tech-support scam, where the user is prompted to call a number for a fake issue. While no scripts were explicitly extracted, the PDF structure and embedded URIs point towards an attempt to redirect the user to malicious sites, likely to further the phishing or scam attempt.

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
  • 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://maypoin.ru/123?utm_term=the+booth+brothers+music PDF link annotation
    • http://animoney.xyz/javirejb30o.pdfIn PDF document text
    • https://fakazurirogedim.weebly.com/uploads/1/3/4/7/134743668/lewanifewewalame.pdfIn PDF document text
    • https://cdn.sqhk.co/puxedimuwo/dnghidu/60500121618.pdfIn PDF document text
    • http://hargotel.xyz/wonexupoviwhed13.pdfIn PDF document text
    • https://cdn.sqhk.co/mizogujuzo/aqHjdhf/67221740537.pdfIn PDF document text
    • http://bewizevamud.iblogger.org/pakafulol.pdfIn PDF document text
    • http://eurofamily.pro/minusiwinolllt1p.pdfIn PDF document text
    • http://nimojojisox.22web.org/76465803445.pdfIn PDF document text
    • http://bestita.space/botanicula_full_androidwswgf.pdfIn PDF document text
    • https://cdn.sqhk.co/dajusonas/iiIYBhg/coin_pusher_china.pdfIn PDF document text
    • http://frontend-developer-azaynullin.site/ola_cab_booking_chennai79do6.pdfIn PDF document text
    • http://custits.space/square_stock_trading_platformdjvvm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rapaxaj.rf.gd/adblock_android_no_root_xda.pdfIn PDF document text
    • http://sonowodiguvab.epizy.com/adrianna_papell_long_formal_dresses.pdfIn PDF document text
    • https://s3.amazonaws.com/xojafemori/97804586462.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_off0000d0b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0B1 4888 bytes
SHA-256: d3877adf29566c56b7403ea7b8b9bb9a4730ec116bc37e154320b8043ae1c709
font_01_sfnt_off0000e128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE128 12484 bytes
SHA-256: ea2837a501fab7eef0904a6f2d4c6a706ef42d72a0d487a89bc8478429028a4b

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