PDF malware analysis — malicious · b86d98aa5044c13f

MALICIOUS

PDF

70.5 KB Created: 2021-02-18 14:59:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23

MD5: 80345b02400a9b18164326c06a66c9a9 SHA-1: 99c0c8cf3ec66e7ccbf70e00a8cbc86d80cf1331 SHA-256: b86d98aa5044c13f0be6748496a050cd5799a584231ee958725dfa883c574b4b

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/strik?utm_term=frigidaire+dehumidifier+70+pint+ffad7033r1+vs+fad704dwd PDF link annotation
- https://cdn-cms.f-static.net/uploads/4425484/normal_600bfe3c8d814.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388835/normal_6021f52bbeb66.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454056/normal_5fd87b459e86c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369762/normal_600d2bf0b50c5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4495251/normal_602e52c5a5da9.pdfIn PDF document text
- http://doxugivo.22web.org/how_to_do_arcsine_transformation_in_spss.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4462730/normal_5fd3410a06b86.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4472776/normal_602897f8cb8a0.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4421207/normal_6008dd4f80356.pdfIn PDF document text
- https://cdn.sqhk.co/dezorevukor/b3icihb/winiv.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://dowirimidezifa.rf.gd/very_brady_renovation_episode_guide.pdfIn PDF document text
- https://s3.amazonaws.com/panokojol/22083085784.pdfIn PDF document text
- https://s3.amazonaws.com/dotivaf/alnor_balometer_capture_hood_ebt731_manual.pdfIn PDF document text
- https://s3.amazonaws.com/nilafafakem/59108599487.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_off0000d5b7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD5B7	6056 bytes
SHA-256: `7f469c819b00a2bf8be42613716bdd4cc4b45fd63e036ae5086f43afd4b900a6`
`font_01_sfnt_off0000ea58.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEA58	10120 bytes
SHA-256: `367573fa334656138c1f5fa7525f37d8a2441821f7eba75b97414e3dbca14842`

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