PDF malware analysis — malicious · 69895c382f0121d9

MALICIOUS

PDF

73.1 KB Created: 2021-01-16 15:36:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: a94d7add5c78de99c523bc82d6afcd43 SHA-1: ee78ab296dd76a711b02567ce837fed9de277ccf SHA-256: 69895c382f0121d908cbee57fab15332fe5ddb8a41065500b71abdbbfdd9ed47

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ClamAV and an ML classifier, with heuristics indicating the presence of external URIs. The document body, though heavily obfuscated, contains references that align with the detected maliciousness. The primary malicious indicator is the embedded URL pointing to a suspicious domain, likely used to deliver a secondary payload or conduct phishing.

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://trafffe.ru/123?utm_term=surviving+nyc+steam+locomotives PDF link annotation
- https://site-1198415.mozfiles.com/files/1198415/75254011910.pdfIn PDF document text
- https://site-1173169.mozfiles.com/files/1173169/697694030.pdfIn PDF document text
- https://site-1174582.mozfiles.com/files/1174582/ruxedapinebobaxap.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393349/normal_5fa0129b4ed4d.pdfIn PDF document text
- https://site-1174657.mozfiles.com/files/1174657/53251035506.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4414871/normal_5ff7b8b6318fa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4424666/normal_5fc0e5c859396.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/pisedij/darren_sammy_stadium_st_lucia_pitch_report.pdfIn PDF document text
- https://s3.amazonaws.com/xefezesebusu/kukidugenerubabiruru.pdfIn PDF document text
- https://s3.amazonaws.com/mejobu/guider_fountain_pen_india.pdfIn PDF document text
- https://s3.amazonaws.com/fujadabez/protein_structure_levels_of_protein_structure.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_off0000e08a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE08A	5384 bytes
SHA-256: `610f32521ed8174dab4ca24d4089e9e1680527df81cb22fd346e81a5cea7399c`
`font_01_sfnt_off0000f2d4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF2D4	10832 bytes
SHA-256: `0c48da17450e3d0e299f14f94d42bc35bc7da457d9bc805450fa33a963a4a7df`

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