PDF malware analysis — malicious · 905b59e50f9168e6

MALICIOUS

PDF

96.6 KB Created: 2021-01-03 07:22:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 785d3b82cf904b5825a6fed377b17ede SHA-1: 25c9c598ae4c8f8004c24f15effc3d5381bce40f SHA-256: 905b59e50f9168e64f598544fab1dbd338537352b41140ee4e600c14b9162061

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that directs users to a website offering a soundtrack download, which is a common lure for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of embedded URLs and the overall classification suggest the document is designed to redirect users to a malicious resource, likely for further exploitation.

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://traffine.ru/aws?utm_term=the+ballad+of+buster+scruggs+soundtrack
- https://cdn.sqhk.co/japewaturu/cLgK0gc/74695981994.pdf
- https://cdn-cms.f-static.net/uploads/4450047/normal_5fd6145e21aa5.pdf
- https://cdn.sqhk.co/mepetiruzi/hXjaZia/opus_rocket_of_whispers_apk.pdf
- https://cdn-cms.f-static.net/uploads/4378410/normal_5fa56a362fd53.pdf
- https://cdn.sqhk.co/vekasurox/UrgfrS1/98087791208.pdf
- https://cdn.sqhk.co/wowobavukelo/gehavif/10407715285.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://s3.amazonaws.com/xebuvuwov/vupojos.pdf
- https://uploads.strikinglycdn.com/files/cb134be8-3d3e-4735-a13b-6bc9da6b0f31/nuwiwepunetuzi.pdf
- https://uploads.strikinglycdn.com/files/44094df1-cae6-4e4f-b469-0c4378f460f3/lazigare.pdf
- https://s3.amazonaws.com/xisefowu/structure_of_the_human_eye_worksheet.pdf
- https://s3.amazonaws.com/garorowa/rufus_guide_grand_chase.pdf
- https://uploads.strikinglycdn.com/files/5585d9c4-64df-454a-a717-85bcb2e2b3ab/18131673379.pdf
- https://s3.amazonaws.com/ratixifo/93594160128.pdf
- https://uploads.strikinglycdn.com/files/560bf9ae-eef1-4085-9d2c-e05e6fd456cf/89840675209.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000126f3.bin` `ee60215f7c018742e1ec28a9978d16f8b6b790e0e049a89080ffaa219a2398bb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x126F3	5268 bytes
`font_01_sfnt_off000138d4.bin` `c2af0fae7d5ccd0e6a79876f3d30bfc41d70d3a5d0177fcb5698f5d54a95575a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x138D4	14048 bytes
`font_02_sfnt_off000166e8.bin` `9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x166E8	4324 bytes

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