Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e153d0df4982d15…

MALICIOUS

PDF

75.6 KB Created: 2022-04-05 13:54:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-09
MD5: e88a7a16a8670c0eb7d5a6c6d625437c SHA-1: 41a7f3fadc865994efd926a660dc3d7982ec40bc SHA-256: 5e153d0df4982d15a1a648ac0f8db43db82d4bb28778130ee38b266575c575b0
181 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. It advertises pirated content and functions as a link farm, directing users to multiple external URLs hosted on potentially compromised or disposable domains. The document body text, while discussing parental alienation, is likely a deceptive lure to mask the malicious intent of the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://yoyep.co.za/YmrXLWy8?keyword=how%20to%20respond%20to%20parental%20alienation PDF link annotation
    • https://xunatopek.weebly.com/uploads/1/3/2/7/132710497/2100a0820.pdfIn PDF document text
    • http://ep9.cz/kcfinder/upload/files/23158253604.pdfIn PDF document text
    • https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/6f02b65d1bf8eb90d3570b05a2b604b5/63079216754.pdfIn PDF document text
    • http://tradeweb.es/userfiles/file/59085443444.pdfIn PDF document text
    • https://excellencetogether.com/img/files/file/16094941580.pdfIn PDF document text
    • https://nomorjp1.com/contents/files/fupaweluzufepejavitawo.pdfIn PDF document text
    • https://saikekanglun.com/filespath/files/20220205083420.pdfIn PDF document text
    • http://mywymc.com/userfiles/file/3480144028.pdfIn PDF document text
    • http://prmakeup.com/Image/files/kemarelarenifatiketini.pdfIn PDF document text
    • https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/16219cfe7b8ea5---gelezalifirumitomuj.pdfIn PDF document text
    • http://comp-art.ru/userfiles/file/41270530657.pdfIn PDF document text
    • http://ambartakip.net/belgeler/file/pikijewoduvazusus.pdfIn PDF document text
    • https://gyn-koe70.de/obrazky/file/24294240138.pdfIn PDF document text
    • https://bisigibibozika.weebly.com/uploads/1/3/4/4/134438783/sasefebisizegaxif.pdfIn PDF document text
    • https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/162111582f1948---83757724723.pdfIn PDF document text
    • https://longislandinvestmentadvisors.com/nini/userfiles/file/79363322315.pdfIn PDF document text
    • https://velixojuf.weebly.com/uploads/1/4/1/3/141332153/3ab8364e4e0c15b.pdfIn PDF document text
    • http://aventurinproject.tesztweboldal.com/uploads/files/13277510530.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000c569.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c569.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c569.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC569 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000dd80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD80 10460 bytes
SHA-256: ef61cd00f652510226294465d8b00c0016186fae1977d06efe25dbe6145ff8be
font_02_sfnt_off0000f558.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF558 16820 bytes
SHA-256: a461b4ebc8494e68aa60923c3e5ba337b1b085c27c809996522088fdb2e65860