PDF malware analysis — malicious · c7e941f6ac67dc1c

MALICIOUS

PDF

69.9 KB Created: 2020-12-27 23:18:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05

MD5: ba43c8dccb9e43d090c721296efbb452 SHA-1: 21bead878bbaa1f0e7ecf1b0c2d44f12de548dfc SHA-256: c7e941f6ac67dc1c6da9fe346a253dc43d3064f2b374227fa55480a7d65f597c

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, specifically as a phishing trojan. It contains an embedded URI pointing to 'trafficel.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains text that could be interpreted as a lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://trafficel.ru/strik?utm_term=rusted+wardate+website PDF link annotation
- https://cdn-cms.f-static.net/uploads/4389599/normal_5f92b593eb925.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476757/normal_5fbba7b3755a9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4428061/normal_5fadc3f88f174.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388046/normal_5f8fb8f693d57.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/pozokimepe/belaseshe_bengali_songs.pdfIn PDF document text
- https://s3.amazonaws.com/daxemo/formasi_cpns_untuk_papua_barat.pdfIn PDF document text
- https://s3.amazonaws.com/tawovojo/series_66_training_consultants.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2b8d8efa-b619-4c53-b2ea-09daa307aa37/mexowi.pdfIn PDF document text
- https://s3.amazonaws.com/widiku/hp_arcsight_logger.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2e9d1d0c-e903-496c-818d-f4b87f5694d8/24_inch_luggage_walmart.pdfIn PDF document text
- https://s3.amazonaws.com/mazugezijap/cingular_flip_2_manual.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_off0000d136.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD136	5028 bytes
SHA-256: `8f8a24aa2ebdfeab388c4c91b47f6cd46ea723f153377b435185d549fffd1364`
`font_01_sfnt_off0000e271.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE271	12116 bytes
SHA-256: `f186c8936ad1072c9878da2e91d21916b1b2ca9a5b47ced910738b4c7ac222cb`

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