PDF malware analysis — malicious · 645fc4a04891c7c0

MALICIOUS

PDF

76.7 KB Created: 2021-03-19 03:19:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 63bb34016791aff822194e52e679e4dc SHA-1: dd815b42865e2b55d84d9f2adc265bf402290df0 SHA-256: 645fc4a04891c7c02bb670f49965537923bcb948df1fc31c41b087055bf28082

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URI that points to a suspicious domain, likely intended to host malicious content or phishing pages. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though heavily obfuscated, contains strings that appear to be related to search queries, reinforcing the phishing lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

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://druttle.ru/wix?keyword=child+of+rage+beth+thomas
- https://cdn-cms.f-static.net/uploads/4487191/normal_6043044f19c40.pdf
- https://fixaninupokawaw.weebly.com/uploads/1/3/0/8/130873986/d30a564c0fa50.pdf
- https://cdn-cms.f-static.net/uploads/4365586/normal_6026a642f1af4.pdf
- https://tojewenegekov.weebly.com/uploads/1/3/4/5/134502344/7456098.pdf
- https://lidonamu.weebly.com/uploads/1/3/4/7/134722791/pasudibibidazig.pdf
- https://zolidejowifaw.weebly.com/uploads/1/3/5/3/135313364/4fcf5594.pdf
- http://bovibuvebus.getenjoyment.net/adobe_premiere_pro_basic_tutorial.pdf
- https://static.s123-cdn-static.com/uploads/4416796/normal_5fef0375c6990.pdf
- https://static.s123-cdn-static.com/uploads/4482188/normal_60034cb236bcc.pdf
- http://rexevivejegox.scienceontheweb.net/xoborokovurabuwunaneke.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/zomuzigo/dobujaduwalobelijo.pdf
- http://gorosojipi.rf.gd/well_cementing_schlumberger.pdf
- http://lojupefiduk.epizy.com/half_numbers_to_20_worksheet.pdf
- https://s3.amazonaws.com/rufonali/imagenomic_portraiture_filter_free_for_mac.pdf
- http://batogejupimole.rf.gd/11946953382.pdf
- https://s3.amazonaws.com/vavabi/blue_card_form_upload.pdf
- http://vepuziv.epizy.com/a_b_c_d_movie_mp4.pdf
- http://zifokorakimedak.rf.gd/metal_gear_solid_1_guide_book.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_off0000eddb.bin` `f11d034013ccf52e62305f107208a3d045d141a8bff21253b4364cb83eda939d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEDDB	5364 bytes
`font_01_sfnt_off0000ffe4.bin` `2e99a5a52d204c1559c48238ce1e9630f5fe6b8bfe31980dc3977ce67357530b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFFE4	10728 bytes

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