Malicious PDF — malware analysis report

Static analysis result for SHA-256 e159152c1cd7a3ea…

MALICIOUS

PDF

85.8 KB Created: 2021-04-06 23:50:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 26eed554561af17749750b74d745aea4 SHA-1: 56ed4ee8d945b6973fa9f56b4eddb0412c8f9178 SHA-256: e159152c1cd7a3ea5e481217ceb2ed9ae016d7426cc7d6f398a6a11425d4e179
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a malicious domain, identified by heuristics and a machine learning classifier. The ClamAV detection further confirms its malicious nature, classifying it as a phishing trojan. The document body, though heavily obfuscated, suggests a lure related to 'Intermatic timer model dt620cl instructions', likely to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://dafemum.ru/strik?utm_term=intermatic+timer+model+dt620cl+instructions
    • http://begemot.space/10715170241v6nnq.pdf
    • https://cdn-cms.f-static.net/uploads/4458407/normal_5fe80f07ccce3.pdf
    • http://sell-toclick.online/advanced_mathematical_concepts_precalculus_with_applications_student_edition96gbf.pdf
    • https://cdn-cms.f-static.net/uploads/4459176/normal_605c2d2a699f4.pdf
    • https://cdn-cms.f-static.net/uploads/4485301/normal_603b264a9cc58.pdf
    • https://cdn-cms.f-static.net/uploads/4402964/normal_6069c8c0d52d5.pdf
    • https://cdn.sqhk.co/rivojotewez/c6jKoji/desavekuner.pdf
    • https://cdn.sqhk.co/xatijafuwami/dRlo0wq/79540685619.pdf
    • https://cdn-cms.f-static.net/uploads/4469386/normal_601b812f5b25f.pdf
    • https://static.s123-cdn-static.com/uploads/4393772/normal_5fc68c3199624.pdf
    • https://cdn-cms.f-static.net/uploads/4486765/normal_60657bd3b2d70.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/tokit/74778873188.pdf
    • https://s3.amazonaws.com/fewunadupop/periodic_table_with_electron_configuration_printable.pdf
    • https://s3.amazonaws.com/ravuxudibure/10484281541.pdf
    • https://uploads.strikinglycdn.com/files/ef1101a6-38c5-4f50-87ec-46ac530628b3/gps_essentials_tutorial.pdf
    • https://uploads.strikinglycdn.com/files/e1dd4ede-5740-4dfb-a8e2-3491f31c9b8e/arduino_nano_pin_diagram_explanation.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed85.bin
13a9f5e5e3bd14fa6111bdd3f511ea680b29f3febd4bae06d5045c139c6dbdd0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xED85 5332 bytes
font_01_sfnt_off0000ff76.bin
6ca7ed57679c871d714feaef4988a156908a496b6541161960c9aba1ad7ad728		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF76 11432 bytes
font_02_sfnt_off000126df.bin
d1a84ba8f0e4a827a048d387db8dd5dae3538f1c7e72415b16af587a9947cdc7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x126DF 16060 bytes
font_03_sfnt_off00013b77.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13B77 4324 bytes

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