Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d01c102b02a7f41…

MALICIOUS

PDF

72.1 KB Created: 2021-02-28 16:47:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: a0651a1ac4dea4a3448cbd0a30054f39 SHA-1: 564c65494dc92e7d4bdd30d0766d6750d28fc3b4 SHA-256: 5d01c102b02a7f41222ed4d0b6be96d034e32e50addff14ca2cd0cff8b17033a
126 Risk Score

Malware Insights

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

The PDF file contains embedded URLs that are part of a link farm, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate maliciousness, with the primary URL pointing to a keyword search for 'gta 5 download apkpure for pc', likely a lure. No scripts were extracted, but the PDF structure and embedded URIs are indicative of a malicious document designed to trick users into downloading unwanted software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wix?keyword=gta+5+download+apkpure+for+pc PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4482206/normal_602ee46a24709.pdfIn PDF document text
    • https://cdn.sqhk.co/joxufejod/giJijif/72952790819.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460954/normal_5ff45231bfd39.pdfIn PDF document text
    • https://cdn.sqhk.co/setinapas/igFicGt/biberubegaxomepegamawale.pdfIn PDF document text
    • http://bawimip.sportsontheweb.net/99113388037.pdfIn PDF document text
    • http://kogudajinisu.iblogger.org/one_group_pretest_posttest_design_sample_size_calculator.pdfIn PDF document text
    • https://cdn.sqhk.co/tononapiwaso/a9CigeA/pottery_lab_let_s_clay_3ds.pdfIn PDF document text
    • http://fomaxos.22web.org/formocresol_vs_calcium_hydroxide_in_pulpotomy.pdfIn PDF document text
    • https://cdn.sqhk.co/redexisa/Au6IAhc/66594820909.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bopagit.rf.gd/fonowavexelatubed.pdfIn PDF document text
    • http://tobikinos.onlinewebshop.net/hoover_dual_power_max_carpet_washer_manual.pdfIn PDF document text
    • http://zogosugo.onlinewebshop.net/92609212293.pdfIn PDF document text
    • http://zodabozaloti.rf.gd/72841465166.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_off0000dde0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDE0 5284 bytes
SHA-256: d7fa4c0115997f9ae267eaa53c24cd8aa54db77c567c5bc53b89aba5dbeefe50
font_01_sfnt_off0000f00c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF00C 10444 bytes
SHA-256: 59a082f5a6a0f761dffd679e7d1c8d68cd099ae81f4b2fc92169e5b4ebb34d8f

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