Malicious PDF — malware analysis report

Static analysis result for SHA-256 94131435a0682dae…

MALICIOUS

PDF

68.4 KB Created: 2020-12-28 02:39:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12
MD5: 0f396219baa8edeeaf85e949637c86cf SHA-1: f211806df7ed72434e2a6725a76b7bd64ccdcf75 SHA-256: 94131435a0682daee0519c439850e69b39322c121cbe4ef053fbd1602e46ebfe
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm. It contains numerous external links, many pointing to disposable hosting services like Weebly, suggesting an attempt to obscure the ultimate destination or distribute various payloads. The presence of a URL with a 'utm_term' parameter indicates a potential phishing or tracking campaign.

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffnew.ru/123?utm_term=you+are+a+mighty+god+lyrics PDF link annotation
    • https://gatodewa.weebly.com/uploads/1/3/4/6/134627503/acab3e68c2bb1.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/4d5351fbb209c0.pdfIn PDF document text
    • https://lafitezin.weebly.com/uploads/1/3/5/3/135323108/guzirosapeg.pdfIn PDF document text
    • https://nixixufusolawig.weebly.com/uploads/1/3/4/8/134882604/456a93584.pdfIn PDF document text
    • https://guxesawaxogego.weebly.com/uploads/1/3/4/3/134314991/laxexunosizodezudi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390681/normal_5f9335cc13ed7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389354/normal_5faa65614ae9e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1764e1f5-e3f7-48fe-b5b9-9dbaba5a60b8/peg_perego_stroller_instructions.pdfIn PDF document text
    • https://s3.amazonaws.com/piradi/bintang_bier_logo_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cc3f52e-e874-428f-b33d-d43bbe41ceef/31057972541.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/831e6f94-802f-4c53-8ee7-c4f38abbc545/first_signal_pregnancy_test_miu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a6ec7da-2d18-4e9c-bd0e-0e0595513a70/words_start_eh.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2171aaf0-e7ed-4cc5-8956-af755a344f58/pastel_yellow_app_icons.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b36898a4-61ae-47d8-ad8f-018454b739cd/28680663799.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18d1f992-2dc1-46de-8cc4-f5b5e4cd7dfa/24373190735.pdfIn PDF document text
    • https://s3.amazonaws.com/sojaxub/zusikikaxanegoramulir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bb41357-fb78-42a0-bdce-3ef2e46d043b/luwasurokupejuw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e41f5ea-5c37-4856-bcef-dc33dde076b1/99457467615.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_off0000cebb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEBB 5416 bytes
SHA-256: 414be3e79bf0119a1ac7bc93c9dd7738ba1c9bf0cd0d8e02383d66e05d3bdc6a
font_01_sfnt_off0000e107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE107 10420 bytes
SHA-256: 0a77f804146be87db509bf0b07fb0448456387547c0b038bf1df2756a43b3551