PDF malware analysis — malicious · e330b0aea2286ccb

MALICIOUS

PDF

76.9 KB Created: 2021-04-06 00:18:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bfd320d9d4f690f53274f84747e608e6 SHA-1: 488864d014b0d12b6badbbba0e97db90080f947d SHA-256: e330b0aea2286ccb6edc71b511350de13db4882577ebeffc9efee534bae7ebc9

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. The embedded URL `https://vilenefex.ru/award?keyword=sap+accounting+software+tutorial+pdf` suggests a phishing or credential harvesting attempt disguised as a software tutorial. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are commonly used for initial access via social engineering.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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://vilenefex.ru/award?keyword=sap+accounting+software+tutorial+pdf
- http://storezone.info/how_many_times_to_workout_to_see_resultsu73se.pdf
- http://xxlmature.site/mere_christianity_book_3_reviewnlxf7.pdf
- https://takatika.weebly.com/uploads/1/3/4/6/134605824/656c2d5a213042f.pdf
- http://bluetea.space/14103311700pw2jb.pdf
- http://ibkreactiva2020.com/sixipogedtthk8.pdf
- https://static.s123-cdn-static.com/uploads/4369332/normal_5fe133736e91b.pdf
- https://wujumumokujot.weebly.com/uploads/1/3/4/6/134613036/0a3cadaf7e53f90.pdf
- https://mikugixu.weebly.com/uploads/1/3/1/4/131438693/9467694.pdf
- https://cdn-cms.f-static.net/uploads/4380674/normal_6067a93925ddf.pdf
- https://kegozorud.weebly.com/uploads/1/3/0/7/130740561/4006329.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://16fd3b15-5541-4454-9538-28daacbf497e.filesusr.com/ugd/e32576_64375eeb42c047a9878136465f95ce2a.pdf?index=true
- https://uploads.strikinglycdn.com/files/68a95c32-6d40-48d0-bd6d-66a75aa02f18/what_is_the_gvw_of_a_international_4300.pdf
- https://s3.amazonaws.com/laradusa/89502027833.pdf
- https://s3.amazonaws.com/wudibirewuduto/38547522971.pdf
- https://s3.amazonaws.com/wovigebi/64002578008.pdf
- https://e0271a52-a7af-48e9-8a99-924ce320ec62.filesusr.com/ugd/be5703_b47ff4a0cd1d40e2a59a34026b02e01b.pdf?index=true
- https://59cf682b-6680-4a08-8b8d-0472bab64ef7.filesusr.com/ugd/d7d6cd_c11df56752b745019821fe94aca1341a.pdf?index=true
- https://uploads.strikinglycdn.com/files/8f98814d-761e-41ca-9e6f-30f7083aa03e/muxuwefew.pdf
- https://uploads.strikinglycdn.com/files/42507307-5545-40f8-8fe3-44e559ae5332/fighter_5e_dnd_wikidot.pdf
- https://5b5cf7c4-d983-4e27-bd54-44d52fc9074e.filesusr.com/ugd/2f9450_6a31139bf36549a98aed1427b4115f65.pdf?index=true
- https://s3.amazonaws.com/juwofuxufijup/61993103115.pdf
- https://s3.amazonaws.com/risalenefazozo/peavey_classic_50_2x12_valve_combo.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e77a.bin` `f9303f6c3f3518240675263f9fce135aeb6b68565796095ff43a11aa978b02f0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE77A	5520 bytes
`font_01_sfnt_off0000fa59.bin` `a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFA59	1800 bytes
`font_02_sfnt_off000102e6.bin` `3850ac7e196b6f49221e84c293b1ec3051171ffbe3a5da1231366ca39eb5da08`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x102E6	10328 bytes

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