PDF malware analysis — malicious · 79bef46c1eb08326

MALICIOUS

PDF

83.8 KB Created: 2021-03-08 22:16:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: e601cd5aa878a7050da77047ac93cce5 SHA-1: 7fe1d34a0886fc5808f30b74e6589b11d0e2d811 SHA-256: 79bef46c1eb08326d8b86df8cd12ff74a60a9d5bb36ac339cea4045b8979ead8

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV detection, indicating malicious intent. The embedded URL and numerous other URLs point to external resources, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains references to a 'smart wristband review' and the authoring application 'wkhtmltopdf', likely serving as a lure to direct users to malicious sites.

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=smart+wristband+3+review
- http://fesotisifofil.mygamesonline.org/zurakopu.pdf
- http://sipipewawezizuf.getenjoyment.net/kadirimovomenowirituvexi.pdf
- http://gitikirazidapi.medianewsonline.com/62381125339.pdf
- http://rosutob.getenjoyment.net/94341041675.pdf
- http://wekanisa.scienceontheweb.net/irobot_braava_jet_240_cleaning_solution_alternative.pdf
- http://zosuwalerikare.getenjoyment.net/numerical_analysis_mathematics_of_scientific_computing_solutions.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://s3.amazonaws.com/nelizenejakarug/38516926994.pdf
- https://uploads.strikinglycdn.com/files/14df874d-6932-4860-bf7e-b34da2050eac/fodavuvonasesojebukefot.pdf
- https://uploads.strikinglycdn.com/files/211fa6f0-77fd-466a-97bd-fe544a27db28/lufis.pdf
- https://s3.amazonaws.com/kozewuposoridil/64878679439.pdf
- https://19972ee8-34f0-4900-8009-9f590161cd02.filesusr.com/ugd/64db51_955c04ac1ea24fa19cd3fd26f1562c22.pdf?index=true
- https://uploads.strikinglycdn.com/files/e60dec64-8e0c-4078-a7fa-931135ffb869/tracfone_lg_k31_rebel_smartphone_reviews.pdf
- https://feedbc21-cb93-402c-9ae2-3476589645d2.filesusr.com/ugd/f3ecbe_e2c25380da7f4ad89d1cf9519aae7538.pdf?index=true
- https://d33b8dfc-9792-4d26-9d81-613d0bd32a71.filesusr.com/ugd/d34367_2bdfcf8921364e0494dbffc8ddb17e0d.pdf?index=true
- https://s3.amazonaws.com/patotale/airshou_latest_apk.pdf
- https://1a6defe7-92a0-4357-8a70-d3bce85d30c9.filesusr.com/ugd/385065_06d4e794dcf14e05a77841d8a43d1790.pdf?index=true
- https://s3.amazonaws.com/wizuluworafid/73928041749.pdf
- https://s3.amazonaws.com/rolefosiju/89505791495.pdf
- https://uploads.strikinglycdn.com/files/b00250f6-f45d-4b13-9707-64ec20081009/busebeganoku.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e62f.bin` `435564166d540650e72b9e992edf52c342e40720b38eb2f3280785bb1353dab3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE62F	5176 bytes
`font_01_sfnt_off0000f7ac.bin` `3b7b521f9862b154c68cf5686f78a78b93dd5ce38223f5438f22cfde754901d3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF7AC	10924 bytes
`font_02_sfnt_off00011d38.bin` `c9557d91917e40dbb2ce09b7ef560a04a9a832ffe2ebcac6b50408a58351272e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11D38	16092 bytes
`font_03_sfnt_off00013200.bin` `7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13200	4324 bytes

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