Malicious PDF — malware analysis report

Static analysis result for SHA-256 500a302b86cd27e4…

MALICIOUS

PDF

80.4 KB Created: 2021-03-28 02:43:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cd795818fb70b985126b63c64f862a5d SHA-1: d1f1b7f7ea3df2dfeaf915e1c965b4560643e3ed SHA-256: 500a302b86cd27e4b63c64f2fbafaa123b45358e6fd4a99c3179bde4861a964d
96 Risk Score

Malware Insights

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

The PDF document contains heuristics indicating it is malicious and has been flagged by a machine learning classifier and ClamAV. It embeds external URIs, with the primary one being 'https://vilenefex.ru/strik?utm_term=how+to+start+a+business+in+texas+secretary+of+state', suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, appears to be a lure related to business registration, aligning with the detected malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • 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://vilenefex.ru/strik?utm_term=how+to+start+a+business+in+texas+secretary+of+state
    • https://cdn-cms.f-static.net/uploads/4418368/normal_60238227a8372.pdf
    • http://todayshop.website/is_the_waze_app_better_than_google_maps1vgcs.pdf
    • https://nazasakodaz.weebly.com/uploads/1/3/4/6/134667833/7def3847dc48f.pdf
    • http://net-klientov.ru/213210554858lbap.pdf
    • https://sanofawuvi.weebly.com/uploads/1/3/4/5/134588151/linitesag_wudide.pdf
    • http://thedouche.xyz/physical_science_grade_10_past_papers_term_12r5v7.pdf
    • http://vezerfa.xyz/912620893047kc0i.pdf
    • https://static.s123-cdn-static.com/uploads/4448116/normal_60080c1145959.pdf
    • https://jesidovelagira.weebly.com/uploads/1/3/4/7/134705211/f42c5ff607d2c43.pdf
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdf
    • https://cdn-cms.f-static.net/uploads/4450418/normal_605f78506aa5e.pdf
    • https://cdn-cms.f-static.net/uploads/4415518/normal_601448ba0c4cb.pdf
    • https://static.s123-cdn-static.com/uploads/4500665/normal_5ffc6a90133c5.pdf
    • https://static.s123-cdn-static.com/uploads/4406216/normal_5ffff42a0852e.pdf
    • https://mixojokujize.weebly.com/uploads/1/3/4/3/134387696/7863790.pdf
    • https://faxegosesu.weebly.com/uploads/1/3/4/5/134528451/wepazovu.pdf
    • https://cdn-cms.f-static.net/uploads/4458421/normal_603e2df21a328.pdf
    • https://cdn-cms.f-static.net/uploads/4375339/normal_60526a5b49c76.pdf
    • https://cdn-cms.f-static.net/uploads/4504554/normal_6021ea8181383.pdf
    • http://itash.space/oxford_dictionary_english_to_bengaliy61y2.pdf
    • http://extrameets.fun/19903366761jl4pw.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/satedafadusizo/pifudirujekeditejuxi.pdf
    • https://s3.amazonaws.com/xokebore/tetebakaraxoxobabajudejo.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_off0000ee0f.bin
a5bf9cf79a9a8144942217078dbd5c5da596b18a14ccd9bcebb28ccdfa4c21a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE0F 5088 bytes
font_01_sfnt_off0000ff84.bin
f470c56b666f3979801032a52e130761f8da6f4fd7a1078dacd139f122655d50		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF84 11164 bytes
font_02_sfnt_off0001257b.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1257B 4324 bytes

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