Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a20ceddfe3b22f1…

MALICIOUS

PDF

80.9 KB Created: 2021-04-17 14:54:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: ebac8d4f0c4fb7bf6bba6e7941d5b610 SHA-1: 9185818d039d3fa29426f4661c20177939e305b9 SHA-256: 2a20ceddfe3b22f11639bd833a141469ea7379311b075b7021425f6c09fe223b
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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.
  • 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://soxebez.ru/strik?utm_term=sports+hd+dv+1080p+h.264+water+resistant+30m PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4460970/normal_600739344d830.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366017/normal_603b4da1622ff.pdfIn PDF document text
    • https://cdn.sqhk.co/baveninale/UyigRgj/crash_cart_definition_in_medical.pdfIn PDF document text
    • https://didejigoximatex.weebly.com/uploads/1/3/1/0/131070501/lokifa.pdfIn PDF document text
    • http://kidiwutimako.mygamesonline.org/auto_electrical_training.pdfIn PDF document text
    • http://nanamojuvimujo.medianewsonline.com/57190266918.pdfIn PDF document text
    • https://cdn.sqhk.co/panazomuv/hn5iiij/vezafuxe.pdfIn PDF document text
    • https://nojabepeteguki.weebly.com/uploads/1/3/4/6/134669956/cf1d63.pdfIn PDF document text
    • https://legoxadev.weebly.com/uploads/1/3/2/3/132302888/a5f5bb71ec52e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fofeguj/44571123538.pdfIn PDF document text
    • https://5c1f1dc6-d8dc-4ed9-951d-9a6050f495db.filesusr.com/ugd/b972d5_77f56192d4bc4e85a8783bcee7085c6a.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/limepusotanal/rv_dinghy_towing_guide_2016.pdfIn PDF document text
    • https://s3.amazonaws.com/zazelujeju/22004876046.pdfIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/77402891291.pdfIn PDF document text
    • https://3f9320ff-391d-49df-b192-c557e211a93c.filesusr.com/ugd/469aea_ef8f8401bc074d538a38ccc93f4c2df1.pdf?index=trueIn PDF document text
    • https://3ae4d138-4ba3-4962-98fb-1b98b40a6a82.filesusr.com/ugd/38062a_4df0fe42e0be48bfa1ee2c1805371b4b.pdf?index=trueIn PDF document text
    • https://254b3b0b-79dc-4992-827c-fd4bb3db3178.filesusr.com/ugd/f515ca_0b7e41c205f14de5b7009c763409910e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/dudujopixejikug/engagement_ring_carat_size_guide.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF20 2960 bytes
SHA-256: 4c688c0676da4c9c3f1d636d29496b85ed1f90b4285ee9b780884cc7de0e34ac
font_01_sfnt_off0000f990.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF990 6380 bytes
SHA-256: 06e546339fff067ca4eeffb5c30fc1d5077ffd17227f4e7f0d210a4d46492a65
font_02_sfnt_off00010f3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F3D 11412 bytes
SHA-256: f61e7150ef548b4967dc2d5e4d9e434ce05b66d0917f58acd36ec9d95ce24fed

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