PDF malware analysis — malicious · f9b4a52b4e90357d

MALICIOUS

PDF

73.3 KB Created: 2021-02-26 02:37:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5ccfb73eabbf0bf5bec9dcca47f892c4 SHA-1: 730b898518be549d0704d0ce989e4880badb1890 SHA-256: f9b4a52b4e90357dc07f15c3028944d5099e0e845b432fe331de5ca9c8b35763

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ML classifiers and ClamAV, with a critical heuristic indicating it's a Pdf.Phishing.Trojan. The embedded URL, https://leonvi.ru/wix?keyword=arcane+legends+hack+2019, is presented in a way that suggests it offers a game hack, a common lure for phishing or malware downloads. No scripts were extracted, but the PDF structure and URL are strong indicators of malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

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://leonvi.ru/wix?keyword=arcane+legends+hack+2019
- https://cdn-cms.f-static.net/uploads/4459467/normal_60122fd57c858.pdf
- http://rokukugopo.22web.org/what_is_the_political_economy_of_japan.pdf
- http://wajobok.iblogger.org/semicolon_use_worksheet_2_answers.pdf
- http://xasujaru.22web.org/totally_accurate_battle_simulator_apkpure.pdf
- http://rozujed.sportsontheweb.net/skin_burning_sensation_on_lower_legs.pdf
- https://cdn-cms.f-static.net/uploads/4380536/normal_5fdb8edb781bc.pdf
- https://static.s123-cdn-static.com/uploads/4483873/normal_5ffa3dac42b09.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://deketinak.rf.gd/40900359891.pdf
- http://nabenejajoko.myartsonline.com/nasb_vs_nkjv.pdf
- http://rosuronuvure.epizy.com/beagle_puppy_training_information.pdf
- http://xutarefes.epizy.com/biwonunizov.pdf
- http://gigezevozaf.epizy.com/call_up_letter_for_ssb.pdf
- http://velumosak.epizy.com/electric_potential_energy_and_electric_potential_worksheet.pdf
- https://s3.amazonaws.com/jotizifime/tekken_100_game.pdf
- http://girofili.myartsonline.com/how_to_connect_samsung_xpress_m2070w_to_wifi.pdf
- http://xukaneteris.epizy.com/2073643087.pdf
- http://gofosuxubajo.epizy.com/integers_word_problems_worksheets_grade_8.pdf
- http://mijugavagi.epizy.com/zofamuteginif.pdf
- http://rizivubonulej.atwebpages.com/40411383570.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e19a.bin` `d422cd15d15d4727f1ec19b2f13670647d36f2d6136dd7c5a4ab7f715941279b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE19A	5736 bytes
`font_01_sfnt_off0000f511.bin` `f3af6d44f635854d618197bcb2132654010da423f96875ebbcb108a77a1b8edd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF511	10104 bytes

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