PDF malware analysis — malicious · 77697b73a46faddf

MALICIOUS

PDF

69.4 KB Created: 2021-01-09 08:16:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07

MD5: 16e04d63891c4bec0d06e4cd25577da2 SHA-1: 7dd97de5e6cfa5cfa2a4004cf1f1646a9b3e9994 SHA-256: 77697b73a46faddfaa2fd335b94ee4f225fd188fa96eb5d4d946bae68f2e858f

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ML classifiers and ClamAV, specifically as Pdf.Phishing.Trojan. The embedded URL points to a suspicious domain, traffnew.ru, which is likely used to host a phishing page or download a secondary payload. The document body, though heavily obfuscated, contains text that could be used as a lure.

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://traffnew.ru/123?utm_term=are+spiders+insects+or+animals PDF link annotation
- https://static.s123-cdn-static.com/uploads/4454045/normal_5fcae50569494.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4445881/normal_5fcb56b9542e2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369647/normal_5f967814d4bea.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365608/normal_5f87790e5603a.pdfIn PDF document text
- https://sujexixapobitu.weebly.com/uploads/1/3/4/3/134328704/semozak.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393204/normal_5f90d19389d11.pdfIn PDF document text
- https://zatikavetix.weebly.com/uploads/1/3/2/3/132303242/fekesaj-titonukuri.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4460723/normal_5fc99117ea415.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/nowonovege/artist_full_movie.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b9440d04-5528-4964-9645-63b544a23f48/document-based_app_programming_guide_for_ios.pdfIn PDF document text
- https://s3.amazonaws.com/subud/36923953450.pdfIn PDF document text
- https://s3.amazonaws.com/jezaxojipevu/70225300739.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_off0000d1c7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD1C7	5208 bytes
SHA-256: `ffde8871f5f20185d1d5d836e25f4e79d63aea9b8c9609401856d7b02cba70b6`
`font_01_sfnt_off0000e366.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE366	11144 bytes
SHA-256: `40447cbe630af7a9a57ddc69274a72950facf6acdad051f36afac516880914ca`

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