PDF malware analysis — malicious · a0ab712540186f7d

MALICIOUS

PDF

67.7 KB Created: 2020-11-11 17:41:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: 61d6d133aca8fcb37883ce2ebcaa9f86 SHA-1: c189d4889c786a039414970a6e9ecfd718ab3133 SHA-256: a0ab712540186f7d4ff8b9861cd8b5834a3353cda475870c23147876eaa33783

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF that contains a malicious redirector link. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL, https://gettraff.ru/123?utm_term=macbeth+spark+notes, is flagged as a known malicious redirector, suggesting the document is designed to lure users to a harmful site.

Machine Learning

Nyx PDF Classifier malicious score 0.9974

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://gettraff.ru/123?utm_term=macbeth+spark+notes In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/f94c17cd-66b5-4b45-ad6e-8189296a122f/zobofi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2833a33f-97bf-49aa-86ea-e38defbccb60/juxusepavazelij.pdfIn PDF document text
- https://s3.amazonaws.com/sajatesawodiji/bihar_police_sub_inspector_question_paper.pdfIn PDF document text
- https://s3.amazonaws.com/jezekemunidup/jigokati.pdfIn PDF document text
- https://s3.amazonaws.com/jixerubowi/suzonenulutavuv.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6dabb0f6-ca7b-4847-b5cc-8ad7dc1cea60/fuvelerurotojefuna.pdfIn PDF document text
- https://s3.amazonaws.com/sajatesawodiji/delta_bench_grinder_parts.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3d618554-c55d-412a-9d2d-974854b63d72/97829266130.pdfIn PDF document text
- https://s3.amazonaws.com/paxivogedewilu/best_way_to_annotate_on_mac.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_off0000ceed.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCEED	5200 bytes
SHA-256: `1472e2a249812f09cfe4f3aa1ab7f56f655f9d47d01338f4b63001d35b53496f`
`font_01_sfnt_off0000e09c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE09C	10036 bytes
SHA-256: `1e657b76df8b538c9b346ff280087e79b1f8fa05a02e58d821a09792e3efff64`

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