Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d2811b0b49b92b3…

MALICIOUS

PDF

79.5 KB Created: 2021-03-22 12:58:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 034e73165256a106bc119a953a76d8d6 SHA-1: 242a0c41072d1990d95d55a2982e466411308167 SHA-256: 8d2811b0b49b92b31c3682cf79914559a1b94cf97b1c95f5b8027eedd0b4a933
156 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a malicious phishing document and hosts a large number of external links, likely for SEO manipulation or to distribute malware. The embedded URL 'https://lozipotod.ru/wix?keyword=vysor+download+apk+mirror' suggests a lure to download software. While no scripts were explicitly extracted, the PDF structure and the presence of external links strongly suggest an attempt to redirect users to malicious sites, aligning with phishing and potentially malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://lozipotod.ru/wix?keyword=vysor+download+apk+mirror
    • https://waguxezemi.weebly.com/uploads/1/3/4/7/134703223/xamukisep.pdf
    • https://zimivopup.weebly.com/uploads/1/3/1/3/131381614/gipasikakude.pdf
    • https://kobigaxa.weebly.com/uploads/1/3/3/9/133997295/pogiturezafox.pdf
    • http://gewusoluxul.scienceontheweb.net/anatomy_of_thyroid_gland.pdf
    • http://gezakiribonenin.mywebcommunity.org/cogentin_davis.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/vukujidor/57497217871.pdf
    • https://s3.amazonaws.com/mawesenasijoser/divinity_original_sin_2_arx_level_guide.pdf
    • https://s3.amazonaws.com/fefurorobumi/lobojoj.pdf
    • https://s3.amazonaws.com/laginekux/rimadarudawasunika.pdf
    • https://s3.amazonaws.com/lolijexejomak/beyond_531_1.4.pdf
    • https://s3.amazonaws.com/gogoxowiniza/fogarinedajatitefedotomak.pdf
    • http://gikosetopetidun.rf.gd/vuboluzolidemux.pdf
    • http://wavopomop.rf.gd/kaworep.pdf
    • https://s3.amazonaws.com/jusuberu/vonajejatovivulapopetob.pdf
    • https://acd80754-3b70-42c6-a60f-3489f6261da4.filesusr.com/ugd/f1780b_083d62576ab2486fb9b4b1bb80d581c6.pdf?index=true
    • https://3228dc58-b2c1-4aed-ac20-03fc52793822.filesusr.com/ugd/43afbb_d654edcc3bfc4266ae020e674dca3442.pdf?index=true
    • https://s3.amazonaws.com/datarofapakil/ssrs_report_builder_iif_null.pdf
    • https://e9542b43-fb79-4c62-94a9-c66526381fce.filesusr.com/ugd/4142f3_b5743182b3b94e5d86e2c7146aaf9d1a.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc6d.bin
84db644e14e3842ee3e8a3e3f22f0f21f314887e99ebfef79ef96315986ea21f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC6D 5328 bytes
font_01_sfnt_off00010e94.bin
7f480f8552ff800014dadf6c1e465a2643f6cb00a7e92577cd4feb2a1be13dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E94 10020 bytes

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