PDF malware analysis — malicious · 8f1aacf282c141f3

MALICIOUS

PDF

76.3 KB Created: 2021-03-22 04:27:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5f2616b5d36dda0f52add3904104a34b SHA-1: 2adf017ad8fff625df50a747920dea9cd96621c3 SHA-256: 8f1aacf282c141f36b4e8572bb35c0756a6a1c68fa140f2ba47283680ae83bf3

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URI pointing to 'ponafet.ru', which is flagged as a high-risk indicator. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as a phishing or trojan PDF. The document body, though heavily obfuscated, contains metadata related to 'wkhtmltopdf', suggesting it might be a generated document used to disguise malicious content.

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://ponafet.ru/strik?utm_term=factors+affecting+motivation
- https://static.s123-cdn-static.com/uploads/4369919/normal_5fcca4a35c0fa.pdf
- https://rezezeveg.weebly.com/uploads/1/3/1/8/131871466/paradiruxigog.pdf
- https://tipidaxu.weebly.com/uploads/1/3/0/7/130739537/d686fc487.pdf
- https://cdn-cms.f-static.net/uploads/4426823/normal_60534cb10f27d.pdf
- https://besuweleterum.weebly.com/uploads/1/3/2/8/132814030/93c7f49841a7.pdf
- https://static.s123-cdn-static.com/uploads/4405929/normal_5ffacd05bc774.pdf
- https://cdn-cms.f-static.net/uploads/4489412/normal_6010d4355b385.pdf
- https://mutalexo.weebly.com/uploads/1/3/1/8/131871787/gefokulom.pdf
- https://cdn-cms.f-static.net/uploads/4379359/normal_6020087d8989f.pdf
- https://static.s123-cdn-static.com/uploads/4488135/normal_5ffb2de8e33ec.pdf
- http://xuroriwonufuz.scienceontheweb.net/63231284741.pdf
- https://riwivado.weebly.com/uploads/1/3/0/7/130739124/tesetowave.pdf
- http://danoguvokapijof.medianewsonline.com/zugupefim.pdf
- https://cdn-cms.f-static.net/uploads/4454055/normal_5fdaba0f7652a.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://taguloxutenafol.myartsonline.com/wisubevuzamiwupimonifup.pdf
- https://s3.amazonaws.com/zaxefemebidaz/os_axiomas_de_zurique.pdf
- https://s3.amazonaws.com/bitajemisajoz/64692624973.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000eeb9.bin` `045c883d77a5ec3898455a37ca7936773329da9350baddd644b9ce5d3a5f70b4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEEB9	5184 bytes
`font_01_sfnt_off00010054.bin` `1d1a1be2923f8e8bd3b7ae3b959f28f46250aed033c9b8d2ccddbd3b37ed66d0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10054	10564 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.