PDF malware analysis — malicious · 9ca29d2739daccd1

MALICIOUS

PDF

61.3 KB Created: 2021-01-15 02:41:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31

MD5: 3583aeebfa273fce742400a715bff589 SHA-1: e7a96d529f048f988f82096c145a72e285f0c5b8 SHA-256: 9ca29d2739daccd10473732b665daf2c330bd78475ba5bbb32f5b25e11e5204d

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a heuristic firing for an external URI pointing to 'traffset.ru', suggesting a phishing or malicious redirection attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URL are indicative of a phishing lure, likely leading to a malicious website.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://traffset.ru/123?utm_term=letter+of+transmittal+city+of+hollywood PDF link annotation
- https://site-1203683.mozfiles.com/files/1203683/23338817244.pdfIn PDF document text
- https://site-1176791.mozfiles.com/files/1176791/usub_sub4sub_get_subscribers_for_your_channel.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4372073/normal_5fd2f5d647ca0.pdfIn PDF document text
- https://cdn.sqhk.co/busanurutar/gcthfjf/dino_land_match_3_adventure.pdfIn PDF document text
- https://site-1176357.mozfiles.com/files/1176357/bipoxirogevewomiserupig.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4426971/normal_5ff05f139b6b5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4401994/normal_5fe6f33f1ff38.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4469863/normal_5fcc04302608a.pdfIn PDF document text
- https://cdn.sqhk.co/delojiwuguj/ibriiWr/nezuvarareji.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4479441/normal_5fb3deedaa9dd.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/dubiditiginowo/viguvolowugew.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_off0000b454.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB454	5396 bytes
SHA-256: `220c5d5a2d389d09218474dd99ea4ae950c4ca2eb4a0e364cf36422be9086c54`
`font_01_sfnt_off0000c69c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC69C	9964 bytes
SHA-256: `2ea30280bd6f1c7b6b3b407fdd7770ba2fb968453e476e88e26ca4edb126ffd0`

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