PDF malware analysis — malicious · 1c6d27815fac5db2

MALICIOUS

PDF

65.1 KB Created: 2020-11-14 22:18:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 928b5aa571aece25d0280ab8be77cc6d SHA-1: 1baf300bdf855570f34f7d83145e180574fe7b8c SHA-256: 1c6d27815fac5db256a5b2e6ed3fb64b4d2f4cc614d7fb016b42893b394b7efd

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, ggraff.ru, which is flagged by heuristics as a critical indicator. The ML classifier and ClamAV also strongly indicate maliciousness. While no scripts were explicitly extracted, the PDF structure and the presence of embedded URLs suggest an attempt to redirect the user to a malicious site, likely for phishing or to download a secondary payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://ggtraff.ru/123?utm_term=fife+high+school+calendar
- https://cdn-cms.f-static.net/uploads/4367650/normal_5f933579488fc.pdf
- https://cdn-cms.f-static.net/uploads/4366655/normal_5f89036b7ffbb.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/fujadabez/xapuk.pdf
- https://s3.amazonaws.com/libeganot/70519411367.pdf
- https://s3.amazonaws.com/limewub/xavopufaselelila.pdf
- https://s3.amazonaws.com/lijopavexanuse/funesegupuvuben.pdf
- https://s3.amazonaws.com/kuxuxemu/nifaromewofegadutimuvufi.pdf
- https://s3.amazonaws.com/tinajabizoreguf/asus_rt-acrh17_openwrt.pdf
- https://s3.amazonaws.com/resixexi/de_rican_chef_owner_daughter_death.pdf
- https://s3.amazonaws.com/suxiweke/atmosfera_libro.pdf
- https://uploads.strikinglycdn.com/files/0c199b6e-7736-4255-acbe-5cf9819da074/fosotokufofosuxufizoja.pdf
- https://s3.amazonaws.com/jotizifime/serija_dete_18_epizoda.pdf
- https://uploads.strikinglycdn.com/files/adf016f8-550e-47ca-8df7-c0cc1524e896/puxuvegebami.pdf
- https://s3.amazonaws.com/vobuturinivi/texto_cristianos_para_jovenes.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c419.bin` `a621fff59341b57d51af9947dbdb69992cfdbe3b4a3f3e885eeccd7e1c8b4e8d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC419	5236 bytes
`font_01_sfnt_off0000d5ee.bin` `87f8827d89c8967dd290454b30905968d5cd36ba0b63d1a69906f83fe47c29d6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD5EE	9908 bytes

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