PDF malware analysis — malicious · 782476f908f0dfaf

MALICIOUS

PDF

69.7 KB Created: 2020-11-14 09:30:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16

MD5: fb7af9ab2acad8a12f0c45856ea69ac5 SHA-1: 9a8a0fd5d722ad0d77ce47ccbac57c817e4164c9 SHA-256: 782476f908f0dfaf71c81ed163f379dbaa95494b02aef8cd6eeae554bd9763be

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 high likelihood of malicious intent. The document body, though heavily obfuscated, contains text suggesting it is a lure for a specific search query. The presence of an external URI pointing to 'trafffi.ru' strongly suggests the document's purpose is to redirect the user to a malicious site, likely for phishing or malware distribution.

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://trafffi.ru/123?utm_term=word+whizzle+physics+vocabulary+answers PDF link annotation
- https://cdn-cms.f-static.net/uploads/4423728/normal_5fad77da0205e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366388/normal_5fa0e50d4b792.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374847/normal_5f93c8dce4a91.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393644/normal_5f9571e747f06.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/vukusa/fanolop.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4f8bbecd-c9bf-4de8-8c96-1d99081df664/abbyy_transformer_with_crack.pdfIn PDF document text
- https://s3.amazonaws.com/vesubodufisi/68422054983.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/995feda8-80e6-4bce-b3cc-f0c7ba91d78c/vilidamav.pdfIn PDF document text
- https://s3.amazonaws.com/fazujo/17685756955.pdfIn PDF document text
- https://s3.amazonaws.com/nonabafat/torototiritisuteguwoneri.pdfIn PDF document text
- https://s3.amazonaws.com/batiku/bichagadu_songs_free_naa_songs_telugu.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_off0000d40d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD40D	5616 bytes
SHA-256: `5d38210d86d6ac734a2c667b00909180ecc4a4278b112c2081ec97b8f8488c15`
`font_01_sfnt_off0000e747.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE747	10372 bytes
SHA-256: `cc5ce90712bee98cb4b4a014f72705cb8c695742b487b7c603bafbce13404982`

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