PDF malware analysis — malicious · af4058f57947b832

MALICIOUS

PDF

72.5 KB Created: 2021-01-06 20:58:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07

MD5: e890c839793c294e0d00231e98995b27 SHA-1: 35c7d5d52ca998a9ca2e9033054e5fccd9dcd4a0 SHA-256: af4058f57947b832a03c3d7904aeb3ceda59a4049db9e0f691ed82ca7c532922

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 'traffine.ru'. The ML classifier also flagged this PDF with high confidence. Although no scripts were extracted, the presence of a malicious URL strongly suggests a phishing or redirection attempt, likely delivered as a spearphishing attachment.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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://traffine.ru/123?utm_term=eladio+dieste+architecture In PDF document text
- https://cdn-cms.f-static.net/uploads/4410976/normal_5fa21cfa6d480.pdfIn PDF document text
- https://cdn.sqhk.co/xinulezebi/jc0PIhg/64086594078.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378836/normal_5faafcea1e953.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380883/normal_5f8b3babc6d9c.pdfIn PDF document text
- https://cdn.sqhk.co/wevexifimur/jjxtmgg/hot_wheels_race_off_mod_apk_2020.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/jodabiladezot/b_s_l_llb_full_form.pdfIn PDF document text
- https://s3.amazonaws.com/lerezazo/bamini_bold_font_free.pdfIn PDF document text
- https://s3.amazonaws.com/bakoloj/jiriran.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cf177fb1-2323-41f3-82d3-a86557e8b54f/kofigoxumuxivabowekorowa.pdfIn PDF document text
- https://s3.amazonaws.com/wopari/35465129715.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_off0000df90.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDF90	4984 bytes
SHA-256: `9b2ff3f26270356bb736cd88fe360652ce5e37db3722a02720856a93cb78176e`
`font_01_sfnt_off0000f079.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF079	11276 bytes
SHA-256: `ff5f9fc42ee372611c7da7e0ae3ce82e2de8c8a9c2df687035f4cee310d13a93`

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