PDF malware analysis — malicious · a3ad8bf7718a66b9

MALICIOUS

PDF

63.6 KB Created: 2020-12-17 17:58:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 7b2f94a5264f181bb99e8703e415f77d SHA-1: b10f57c85121c8819e25641fc68909d75b9f8ec8 SHA-256: a3ad8bf7718a66b95b749ee0faeb8738b55cf0e8af2fcc80d6d92a8add73e294

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to 'trafffi.ru', which is likely a malicious domain used for further exploitation. No scripts were extracted, but the presence of an external URI suggests an attempt to redirect the user to a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://trafffi.ru/123?utm_term=tomi+sushi+san+jose+hours PDF link annotation
- https://cdn-cms.f-static.net/uploads/4477921/normal_5fb2cc3499acc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388620/normal_5f94897c7a62c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/24f672fc-6e44-44f3-bb65-7ba17c9781d2/el_desafio_del_amor.pdfIn PDF document text
- https://s3.amazonaws.com/kufazete/lagu_lily_dangdut_new_rossita.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6f38520d-238b-4cee-971b-f419e9d2676b/foninuwem.pdfIn PDF document text
- https://s3.amazonaws.com/saziwijaxodav/spectrum_tv_channel_guide_nyc.pdfIn PDF document text
- https://s3.amazonaws.com/pugomonapoxuxe/guide_yasuo_top.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fe17a0f9-54c3-4549-903c-3ecce78a6bc2/wuwelapapipekanilus.pdfIn PDF document text
- https://s3.amazonaws.com/bomifabipi/63502333625.pdfIn PDF document text
- https://s3.amazonaws.com/suxiweke/performance_appraisal_interview.pdfIn PDF document text
- https://s3.amazonaws.com/juvuraguvutoxif/67398190855.pdfIn PDF document text
- https://s3.amazonaws.com/wujixus/ajith_photos_hd_viswasam.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_off0000b9db.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB9DB	4920 bytes
SHA-256: `4163c9522a032613d6df978be8fdaffb039e552e613f9fb6de8a69e45e12bb7f`
`font_01_sfnt_off0000ca67.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCA67	12220 bytes
SHA-256: `a6c59dea35f50f51a7865b1a05ead0ae4419eea7370e69430031c4d8cb1707e0`

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