PDF malware analysis — malicious · 6420e35c25a62f29

MALICIOUS

PDF

72.8 KB Created: 2021-02-24 20:56:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29

MD5: c7b0dfc209a96c15a6402590ddc683dc SHA-1: d41e19bd4f40f62dd53b2ee5afbbafbf63e037d0 SHA-256: 6420e35c25a62f291ac8023a1d3545b88cf0ebefd7fa06fa5b9f55e72edc9ce9

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ClamAV and an ML classifier, with heuristics indicating the presence of an external URI. The document body, though heavily obfuscated, contains keywords related to a Bosch dishwasher, suggesting a phishing or scam lure. The embedded URL points to a domain that appears to be involved in keyword-based search redirection, likely to facilitate the scam.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wb?keyword=bosch%20dishwasher%20silence%20plus%2046%20dba%20won PDF link annotation
- https://static.s123-cdn-static.com/uploads/4427287/normal_5ff1995797f5d.pdfIn PDF document text
- https://cdn.sqhk.co/sezelijimofi/ZFHJpVT/21443148746.pdfIn PDF document text
- http://zoo-taxi.site/zekewomofw84xo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371536/normal_5fdc4201c04e7.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/sesafefanulokam/free_german_reading_books_for_beginners.pdfIn PDF document text
- https://s3.amazonaws.com/xipavir/carrom_game_pc.pdfIn PDF document text
- https://s3.amazonaws.com/vinivuxo/net_30_accounts_that_report.pdfIn PDF document text
- http://vudatuvabejosix.epizy.com/buxegozamurof.pdfIn PDF document text
- https://s3.amazonaws.com/vibuvomomuv/38213682020.pdfIn PDF document text
- http://ditajizuru.rf.gd/appcoda_generation_ios.pdfIn PDF document text
- http://reworowafuferax.rf.gd/electoral_college_reform_worksheet_answers.pdfIn PDF document text
- https://s3.amazonaws.com/fowonaxul/6th_grade_math_word_problems_worksheets_free.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000df77.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDF77	5716 bytes
SHA-256: `dd49caa56356abf2daef3f6f103cf36b2b3736ad89e956311cdff82fd340f193`
`font_01_sfnt_off0000f303.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF303	10336 bytes
SHA-256: `7bb381a4dfea12c1969e9697ea79d40d5f2c17d043096faea9b3de7c623d7fc1`

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