PDF malware analysis — malicious · ce0dc49be557cb0e

MALICIOUS

PDF

72.7 KB Created: 2021-01-17 07:08:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12

MD5: c1ff264ee8db18ec7465751e0240c3dd SHA-1: 7332c272c3f244e1ec4f68b8c71817e1724d3799 SHA-256: ce0dc49be557cb0eb95c9231b33c15b6a1d511888db4c031406ee84e7c5a545c

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into visiting a phishing site. The document body, though heavily obfuscated, appears to reference license renewal, reinforcing the phishing 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://trafffi.ru/123?utm_term=arkansas+state+plant+board+license+renewal PDF link annotation
- https://static.s123-cdn-static.com/uploads/4381543/normal_5fe444aab123d.pdfIn PDF document text
- https://site-1168052.mozfiles.com/files/1168052/first_aid_kits_for_dogs.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370285/normal_5fa7267a624ac.pdfIn PDF document text
- https://site-1168136.mozfiles.com/files/1168136/avery_dennison_label_software.pdfIn PDF document text
- https://site-1178275.mozfiles.com/files/1178275/barcode_scanner_application_free_download.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384472/normal_5f8c5b849ca26.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4412774/normal_5fe07bafcbcb8.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/xisakazelelinim/90742317072.pdfIn PDF document text
- https://s3.amazonaws.com/damevusom/96732833690.pdfIn PDF document text
- https://s3.amazonaws.com/tuxexi/ribebedojepigo.pdfIn PDF document text
- https://s3.amazonaws.com/tokafanawa/diablo_leveling_guide_s17.pdfIn PDF document text
- https://s3.amazonaws.com/tutapaxi/brake_caliper_bolt_guide_pin-_front.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_off0000e037.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE037	5352 bytes
SHA-256: `ba273cdf20d3698b8f1b35c2aa0c508595a6467fa5b70923a9a3eac76937a15a`
`font_01_sfnt_off0000f283.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF283	10444 bytes
SHA-256: `0cb5aab80fca2725c4cbab77306631575c6f4134dc96b011dde5dc00789e4dbb`

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