PDF malware analysis — malicious · 49de0d3cd4de78bc

MALICIOUS

PDF

69.0 KB Created: 2021-02-20 21:57:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22

MD5: 1a8644e15c99f4eb11ef4716f7754c57 SHA-1: d3cba2db37c2889016535a2ee3078f06c5af36db SHA-256: 49de0d3cd4de78bc53e5da6cd7a7209462ea93be670cb857cf3659952eab0fb4

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://yafferge.ru/wix?keyword=american+tow+truck+unblocked'. The ML classifier also flagged this PDF with a high probability of being malicious. While no scripts were explicitly extracted, the presence of a malicious URL strongly suggests a phishing or malware distribution attempt, aligning with the Spearphishing Attachment technique.

Machine Learning

Nyx PDF Classifier malicious score 0.9981

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
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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://yafferge.ru/wix?keyword=american+tow+truck+unblocked In PDF document text
- https://cdn-cms.f-static.net/uploads/4417329/normal_5fe6335243aa2.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4393193/normal_5fe35d3836c3a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375207/normal_602ed7101f45b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4451356/normal_602d6e37c1b97.pdfIn PDF document text
- http://nanukokopetip.iblogger.org/20422027192.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370266/normal_6016435308d5e.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://vowoxemaxevajo.epizy.com/ryobi_10_inch_table_saw_parts_list.pdfIn PDF document text
- https://s3.amazonaws.com/zuvovoxigumuz/26920881039.pdfIn PDF document text
- http://dusefepov.epizy.com/manual_lava_roupas_brastemp_ative_11kg.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_off0000ce0d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCE0D	5192 bytes
SHA-256: `1d711cbf1158c73460eb1fa6363202afdede026944964583303814eab6f5ed65`
`font_01_sfnt_off0000dfaf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDFAF	11860 bytes
SHA-256: `e8dc382974a9424ca797b26c8d30ccc057981530e6e87779385b6aeace150ee3`

Open this report in the interactive analyzer, or submit your own file for analysis.