Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4db390e11370548…

MALICIOUS

PDF

66.8 KB Created: 2021-06-06 06:57:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0cd48ea75b46ca2b63ce16e014aff205 SHA-1: 13f812eb5804b9c780721b6a1bdf1addfb432245 SHA-256: c4db390e11370548fbfae62dcc0d6035c831b6ce8d4252dd8071adc4ea700b4b
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains a large number of external links, with one prominent URL pointing to 'garglob.ru'. This suggests the PDF is likely part of a phishing campaign or a link farm designed to redirect users to malicious sites.

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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://garglob.ru/pbw?utm_term=shiftwizard+login+firsthealth
    • https://wegukovomaf.weebly.com/uploads/1/3/4/8/134865780/ab19799861611.pdf
    • https://cdn-cms.f-static.net/uploads/4449774/normal_6059126a3894b.pdf
    • https://cdn-cms.f-static.net/uploads/4500200/normal_6015ed68e6ff6.pdf
    • https://nejituxunexako.weebly.com/uploads/1/3/2/7/132712325/bajuxuwemej.pdf
    • https://cdn-cms.f-static.net/uploads/4379613/normal_5fe94cd2ee1da.pdf
    • https://cdn-cms.f-static.net/uploads/4419828/normal_603b1a1bc2702.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/4ae612d1-5f14-4baa-9b9c-fb42d3e85c30/kitchenaid_refrigerator_repair_parts.pdf
    • http://gudotoxej.pbworks.com/f/how_much_does_six_sigma_black_belt_certification_cost.pdf
    • https://uploads.strikinglycdn.com/files/8a898ac9-fc04-4d51-92be-80ff0b3fe47b/minecraft_guide_to_survival_free.pdf
    • https://uploads.strikinglycdn.com/files/0582262c-e290-460e-9125-dae420eec388/bubosexumaw.pdf
    • http://gozuwef.pbworks.com/f/how.to_program_ge_universal_remote.pdf
    • http://ziludezubeju.pbworks.com/f/la_noche_oscura_del_alma_meaning.pdf
    • https://uploads.strikinglycdn.com/files/b1c3af3b-7e19-479c-b9e4-894b9708862f/tusebawokut.pdf
    • http://liguduper.pbworks.com/w/file/fetch/144452253/fobesoseketazivabimuzeku.pdf
    • https://uploads.strikinglycdn.com/files/1030ff8d-e4dc-4518-981d-23c327dd1b6d/national_highway_traffic_safety_administration_accident_statistics.pdf
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bde6.bin
1024db1be412a237b4f4a28be9d92f0308829129e6e85b692d9e6589a574429e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBDE6 5204 bytes
font_01_sfnt_off0000cf9c.bin
b6c109f0ab3cb96738d97b06516036698c0a4445965dce8a87c935648d6cb065		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCF9C 9536 bytes
font_02_sfnt_off0000f01e.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF01E 4324 bytes

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