PDF malware analysis — malicious · 041ae77565b1f06d

MALICIOUS

PDF

67.3 KB Created: 2020-12-21 19:12:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16

MD5: b3f247ccd97cd2471160ea16443c7f73 SHA-1: 1ecd92cdbd80b0b19235315ecc742c2657a5efa4 SHA-256: 041ae77565b1f06d563a3d1fecb4d11d6d6a333473a3de70511710f7f9ac7065

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'traffking.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, contains references to 'Stellio music player pro apk 2019' and 'wkhtmltopdf', suggesting a lure for a software download. No scripts were extracted, but the presence of an external URI and the overall detection profile strongly suggest a phishing or malware delivery attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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://traffking.ru/strik?utm_term=stellio+music+player+pro+apk+2019 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4387428/normal_5f98f4169e089.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/d61e7067-3051-4644-b326-e09cfc8a01a9/raxisakujurajavifisuwise.pdfIn PDF document text
- https://s3.amazonaws.com/zetare/mapuwe.pdfIn PDF document text
- https://s3.amazonaws.com/wobuzisibal/97532151678.pdfIn PDF document text
- https://s3.amazonaws.com/debamijizozexo/13004872728.pdfIn PDF document text
- https://s3.amazonaws.com/bifadiwuwileji/cardiology_explained_free.pdfIn PDF document text
- https://s3.amazonaws.com/jebokizez/15695701635.pdfIn PDF document text
- https://s3.amazonaws.com/vuliwisuwig/rodosobidobagenebomonat.pdfIn PDF document text
- https://s3.amazonaws.com/dozuga/39839111852.pdfIn PDF document text
- https://s3.amazonaws.com/suximawo/guidepoint_pharmacy_longville_mn.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_off0000c996.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC996	5828 bytes
SHA-256: `023127caa752ca0b8b87448154dbb6b6cf882eb8c151a581c0ab74748f4030c4`
`font_01_sfnt_off0000dd64.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDD64	10376 bytes
SHA-256: `cb46b1034b2a8ddb165e0895b776281c7fb26cf35354e13aa6eddc0f96e3cbda`

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