PDF malware analysis — malicious · d5ec6aa03e3597a0

MALICIOUS

PDF

73.8 KB Created: 2021-01-11 00:28:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12

MD5: 5010231ce1fa3c4d07fed337661c203b SHA-1: 7998797f45d2ac0bf227578f9e202b2856846525 SHA-256: d5ec6aa03e3597a0034f6a3ab5104fbe06afdc3978d42eff2f2c1858ef167c93

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, with a high risk score. It contains an embedded URI pointing to 'https://trafficel.ru/123?utm_term=national+geographic+red+eyed+tree+frog+life+cycle', which is a strong indicator of a phishing or malware distribution attempt. The PDF structure and embedded content suggest it's designed to exploit user trust, likely as a spearphishing attachment.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://trafficel.ru/123?utm_term=national+geographic+red+eyed+tree+frog+life+cycle PDF link annotation
- https://site-1166608.mozfiles.com/files/1166608/nes_snes_emulator_windows_10.pdfIn PDF document text
- https://site-1166082.mozfiles.com/files/1166082/zizoruxovap.pdfIn PDF document text
- https://cdn.sqhk.co/bawusipa/G8idgea/fokitubivezuz.pdfIn PDF document text
- https://site-1176039.mozfiles.com/files/1176039/doraemon_cartoon_new_episode_2020_download.pdfIn PDF document text
- https://site-1177778.mozfiles.com/files/1177778/ten_pin_bowling_near_me_prices.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/zemigiduwagafu/jobezexoripukeg.pdfIn PDF document text
- https://s3.amazonaws.com/wupixufekijax/pewofiniponito.pdfIn PDF document text
- https://s3.amazonaws.com/bolovopizonuki/aegis_geekvape_200w_manual.pdfIn PDF document text
- https://s3.amazonaws.com/pezofut/4506895713.pdfIn PDF document text
- https://s3.amazonaws.com/dogazisuze/97761004886.pdfIn PDF document text
- https://s3.amazonaws.com/jukezeluf/41275490356.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_off0000e3c9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE3C9	5312 bytes
SHA-256: `b9ed9159c7e77595eac2ad444816af3a96f8d92171478d82d7b8dbcfb0528c14`
`font_01_sfnt_off0000f5e6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF5E6	10628 bytes
SHA-256: `c1b413df21e1c4eaa84396a861d81aad20b132ac965c4c17c0e5329877a013de`

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