PDF malware analysis — malicious · a3fdcd35c33979c2

MALICIOUS

PDF

81.9 KB Created: 2020-11-10 20:36:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: faaf39b036c0025df62f1aef55d431e7 SHA-1: 78e62cb401694ca26b0ed3c21e516a816832e3dd SHA-256: a3fdcd35c33979c2fe03cdcfcc104d8974fbf1dbd8d5d773d5f248c80f78f8f8

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URI pointing to a suspicious domain, which is indicative of a phishing attempt or malware distribution. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it is designed to redirect users to malicious content.

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://traffine.ru/123?keyword=oakland+heights+farm+horse+show
- https://tuzuwopibas.weebly.com/uploads/1/3/4/3/134316447/roxuravovun-xiwejapovufex-poduzuxefapobef-jerenosupebax.pdf
- https://wunimebi.weebly.com/uploads/1/3/4/3/134361225/katisu-xirelumudidaxo-jezoza-zigisokabusati.pdf
- https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/busixakowun_zefisuni.pdf
- https://nanezafukixepa.weebly.com/uploads/1/3/4/5/134526153/118133a7193a.pdf
- https://cdn-cms.f-static.net/uploads/4365589/normal_5f8f8365cfce0.pdf
- https://rudofodirofebas.weebly.com/uploads/1/3/0/7/130739781/6634275.pdf
- https://gexumuvebevo.weebly.com/uploads/1/3/4/3/134312536/5e0f2f6d.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/solonebosop/expert_mode_skeletron_guide.pdf
- https://s3.amazonaws.com/zazelujeju/kesesatan_ahmadiyah.pdf
- https://s3.amazonaws.com/luropi/automaticity_of_heart.pdf
- https://s3.amazonaws.com/saxefi/kaliraxozojumebis.pdf
- https://s3.amazonaws.com/kalufizefem/xozinuzutitikiwuluzakogav.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000df6b.bin` `1a9815942209ddbfe8f0fc021e8486de860a7f83c0290eae7690e091acac4ce6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDF6B	5504 bytes
`font_01_sfnt_off0000f203.bin` `b6474467454bf98bd7b2f175cbc990951ab933e0855d84764286318fe015dd5f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF203	2160 bytes
`font_02_sfnt_off0000fc0b.bin` `91cd03eef94ef89e77326db22ee01946bd798af988c09fcbcbca58b02a587e94`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFC0B	12624 bytes
`font_03_sfnt_off00012562.bin` `333c6b7950143ef5b768b9d621755905cb9f9f437be433e332b6baa8edb2b5fd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12562	16148 bytes

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