Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeda44edd4d575c3…

MALICIOUS

PDF

78.4 KB Created: 2021-04-03 12:07:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ba04a991eb5a51ed83dd16961fb12b5 SHA-1: d785dbc845133d4bcb1db5025e4b81c6d0803d36 SHA-256: eeda44edd4d575c3e2edadd92b57372eb4857606357f2b971e50f63bba605b99
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL `https://ponafet.ru/strik?utm_term=toyota+camry+trd+for+sale+las+vegas` suggests a phishing or social engineering lure, attempting to trick users into visiting a malicious site. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://ponafet.ru/strik?utm_term=toyota+camry+trd+for+sale+las+vegas
    • http://ompala.store/what_are_some_negative_colorss8kl0.pdf
    • http://firstsecu-paypal.com/chronological_report_examples_ks2nk8xl.pdf
    • http://tradestaroffice.com/xuvedek8cgb.pdf
    • http://cheapestshop.xyz/bacillus_licheniformis_colony_morphology4lluq.pdf
    • https://vizefibamoraxob.weebly.com/uploads/1/3/4/6/134613498/wuxepajegarubup.pdf
    • http://hydraruzxpnew4af.exchange/motivational_interviewing_questions_for_weight_lossj445h.pdf
    • http://strongcreditscore.info/george_foreman_ggr50b_indoor_outdoor_grill_coverzcvrs.pdf
    • https://static.s123-cdn-static.com/uploads/4379970/normal_5febf0ba4d421.pdf
    • https://cdn-cms.f-static.net/uploads/4393638/normal_600dec1f6ae05.pdf
    • https://jodisugej.weebly.com/uploads/1/3/4/7/134732418/govefegepapof.pdf
    • http://lalashoppen.online/60187835951ijcjq.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/bogijexu/nucleophilic_acyl_substitution_reaction.pdf
    • https://03f57db0-fbcf-46ec-8713-21b5992b8512.filesusr.com/ugd/455f95_617f91e3d74b4c7ea9a4e5b3cc679f63.pdf?index=true
    • https://s3.amazonaws.com/wupiwupiwot/sezujarizun.pdf
    • https://s3.amazonaws.com/daraniwekamidir/kibalasapusukakelevam.pdf
    • https://23fe9111-5aa3-4288-b7a4-a84c242bb647.filesusr.com/ugd/d35b85_2ac44b74938d4c75baae5e1700b492fe.pdf?index=true
    • https://a134ef9b-a212-4d8e-a35f-da3d896bbd40.filesusr.com/ugd/dadc92_c5ffe7f7b1e54203b45365be5a9f750d.pdf?index=true
    • https://s3.amazonaws.com/lumixi/9948619371.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f528.bin
a9744eab1886f7d5dad1f8a7d73607b721ced749b30e14ae75e4b6b54558782a
pdf-font-stream PDF embedded font (sfnt) at offset 0xF528 5452 bytes
font_01_sfnt_off000107b1.bin
d57d164382fe0606b7eef2c4f1c9c1845a4be6a84ab1fec8cb5cd3369961c65b
pdf-font-stream PDF embedded font (sfnt) at offset 0x107B1 10796 bytes