PDF malware analysis — malicious · f830c044778d086e

MALICIOUS

PDF

85.5 KB Created: 2020-12-27 19:32:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 0a103e69999e6314c0a58cdab383a2c3 SHA-1: b9d81501a84afd41862e86d0b67d4d890d155b7c SHA-256: f830c044778d086e65b0230f5aca1ad06156ab9c13ecf6409d607e19ce9246f8

104 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains an embedded URL that is presented as a search result for 'what does doomscrolling meaning'. This URL, https://traffset.ru/strik?utm_term=what+does+doomscrolling+meaning, is the primary indicator of malicious intent, likely leading to a phishing or malware download site. The ClamAV detection and ML classifier further support its malicious nature, classifying it as a phishing trojan.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Fake invoice / payment lure low SE_INVOICE_LURE

Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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/strik?utm_term=what+does+doomscrolling+meaning
- https://static.s123-cdn-static.com/uploads/4496391/normal_5fde49e50f75b.pdf
- https://static.s123-cdn-static.com/uploads/4425224/normal_5fe06f3d1341b.pdf
- https://cdn-cms.f-static.net/uploads/4423752/normal_5fd9f92c3e570.pdf
- https://mepafuxutare.weebly.com/uploads/1/3/4/6/134660934/14304.pdf
- https://lemevepavakupe.weebly.com/uploads/1/3/4/7/134701524/d1dd74d659cc.pdf
- https://cdn-cms.f-static.net/uploads/4446015/normal_5fd37fe00ca95.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/7e8935e3-d6b1-4ce5-ac77-b24d4a96140a/51306423634.pdf
- https://uploads.strikinglycdn.com/files/f67b9d55-8914-47a9-8e67-02fc0b277bf9/milton_elementary_school_kentucky.pdf
- https://s3.amazonaws.com/fusidejebi/parosukubobededorake.pdf
- https://uploads.strikinglycdn.com/files/1851a40d-45e3-4230-8f6f-fa21074d0892/let_it_rain_come_like_you_promised_lyrics.pdf
- https://uploads.strikinglycdn.com/files/9ec66132-258e-4276-9781-101ff74b237b/vubazexiredagoziwimijur.pdf
- https://uploads.strikinglycdn.com/files/404f920d-9f83-4499-9fc0-8014bfd872cd/6428683899.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_off00011074.bin` `202382af182aa0d8004ea8e825ce3864c565138cb0e4566af76c7678578bd376`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11074	5364 bytes
`font_01_sfnt_off00012292.bin` `e1870e19ad3a64a698ab058d9ac7526e77de570b072d417b9788ce66222ccfef`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12292	11364 bytes

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