PDF malware analysis — malicious · 934ca52c50fe106d

MALICIOUS

PDF

78.7 KB Created: 2021-03-15 14:05:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a3e64ecd3040791c6751ad06247c6880 SHA-1: d847918c993578277fb62b2e4f9b0d28b2584086 SHA-256: 934ca52c50fe106d269183424151202a37d87ad3200f09b95f991bb0ad03b672

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to deliver a malicious payload or redirect to a phishing page. The document body, though heavily obfuscated, suggests a lure related to job applications or resumes.

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://mezovuduw.ru/award?keyword=senior+accountant+resume+format+pdf
- https://static.s123-cdn-static.com/uploads/4378830/normal_5fecc49c88d9d.pdf
- https://vivexizakodol.weebly.com/uploads/1/3/1/4/131483194/nemimigavufikarobo.pdf
- http://evilcheats.fun/concepto_de_recurso_administrativor9iia.pdf
- http://zojulosopejozaz.iblogger.org/xomugapujumarudevuxureva.pdf
- https://sazagirisama.weebly.com/uploads/1/3/4/5/134585928/jokitexanatewumar.pdf
- http://reform-st.ru/6475157970126shu.pdf
- http://presentinsta.online/blank_invoice_template_onlinemta89.pdf
- http://habirovradik.ru/38783640442i1d57.pdf
- https://xuzelakojit.weebly.com/uploads/1/3/4/5/134593048/4271517.pdf
- http://knitfqph.site/49699965565m1b3g.pdf
- https://static.s123-cdn-static.com/uploads/4381529/normal_5ffef255525ce.pdf
- http://buyervannakupitvsem.xyz/salems_lot_2004_streamingvu6uq.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://jofesosozofoso.epizy.com/16061202601.pdf
- http://jegozejixal.epizy.com/seismic_performance_of_masonry_buildings.pdf
- http://xijobepiza.epizy.com/69029258331.pdf
- http://zugiwonurubenaz.epizy.com/how_do_you_fix_a_cracked_head_gasket.pdf
- http://mexowotevofo.rf.gd/bozugalulimonob.pdf
- http://nabasuxogakuwet.epizy.com/adobe_fill_and_sign_app_apk.pdf
- http://jokunikef.epizy.com/83655630618.pdf
- http://lidiwerefibe.rf.gd/87030199908.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_off0000f659.bin` `655e44a95842b564e64daabe7cca9bed125d28f37465e0e705c5b4f8b3f56422`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF659	5372 bytes
`font_01_sfnt_off0001088a.bin` `4488045080a691f196310849cf0ee9ff14abf68ad81ce6dcba5d712d7bc6ab5a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1088A	10996 bytes

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