Malicious PDF — malware analysis report

Static analysis result for SHA-256 60e507cd1df12d73…

MALICIOUS

PDF

83.0 KB Created: 2021-03-19 07:07:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b0c8bdf2f252659aac8f2c743e02e19d SHA-1: 563da4f47c22c85ae55230c1c8dce3308c4464ae SHA-256: 60e507cd1df12d73aae2d6ad8680fb348081917646c3dd9a5c51f48e31bb5646
206 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, many of which point to disposable hosting or redirectors, indicating a link farm designed to obscure the ultimate destination. The heuristic 'SE_CALLBACK_LURE' suggests a phishing or scam context, and the presence of external URIs like 'dugedepap.ru' further supports this. While no scripts were directly extracted, the overall structure and URL distribution are consistent with a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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
  • 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.
  • 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) 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://dugedepap.ru/strik?utm_term=h20+x5+steam+mop+troubleshooting PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374983/normal_6027cb640f053.pdfIn PDF document text
    • http://pe50off.info/walmart_pharmacy_phone_number_and_address96enm.pdfIn PDF document text
    • http://insuranceautousa.com/87830178526wa9jv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484635/normal_6022003fb1463.pdfIn PDF document text
    • https://favapebunekef.weebly.com/uploads/1/3/0/8/130874429/5374387.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380680/normal_5fe1f76064cda.pdfIn PDF document text
    • https://dudafizegananif.weebly.com/uploads/1/3/4/8/134864336/lutomomazate-gewuma.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416153/normal_5fe823b06032b.pdfIn PDF document text
    • https://dawurawo.weebly.com/uploads/1/3/5/3/135323901/fd7644.pdfIn PDF document text
    • https://gukujevanedin.weebly.com/uploads/1/3/5/3/135344472/tawevopafedim.pdfIn PDF document text
    • https://telewebejuta.weebly.com/uploads/1/3/1/6/131607630/pekurobezumabi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460946/normal_6051ef29dad93.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://uploads.strikinglycdn.com/files/fc96591a-b14e-417e-bd7b-7830b0c89213/buzafikixumurojedovo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb1ec82e-8655-4ff2-ab7f-ef8146d79102/tuxatifip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15d81e63-31b6-415d-857a-4df1ce1f3fab/xikutam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b08f1f6e-9c68-43f4-b53b-8d265a587e37/baloxosojitibabineliz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17c246ad-27c7-4cdd-93d0-9046f384270a/super_dark_sunglasses_womens.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5cc0f836-14e0-4bcf-b8ac-815156101bdc/bash_scripting_variables_in_commands.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46116208-7ab8-4e35-bf4a-95ec6a568c03/28255235458.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/bupesumol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/09f81420-7922-4713-b8c8-52b0fc03c23b/english_grammar_book_class_9_download.pdfIn PDF document text
    • https://s3.amazonaws.com/sedowedi/cannon_bed_sheets_in_saudi_arabia.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/vegas_pro_14_free_64_bit.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_off0000f4a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4A0 5684 bytes
SHA-256: 0514fa39474daa74e565eb3d0ca1c2892eea98a69342b92ba97840213f281eb0
font_01_sfnt_off000107bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107BB 11776 bytes
SHA-256: 744b209cb4a0520ad2a6a96486473f643e9fc48fd1a16010fd5a44600469d47d
font_02_sfnt_off00012ebb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12EBB 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378