PDF malware analysis — malicious · 58370ad8dcbd3385

MALICIOUS

PDF

78.0 KB Created: 2021-04-10 00:15:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21

MD5: d7df912b563634ea8c61b9db4e3974db SHA-1: 907d791f26ce22fd6faa7be257b517adf0214a2d SHA-256: 58370ad8dcbd3385dec8ca2ff9f488de8ac86c0f2d367b5a5f75e92acd8e8d08

166 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan threat. It contains numerous external URIs, including one pointing to 'druttle.ru' with a 'wordpress admin login url' parameter, suggesting a credential harvesting attempt. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document may be instructing the user to open a password-protected archive, a common tactic to bypass gateway security.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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://druttle.ru/strik?utm_term=wordpress+admin+login+url PDF link annotation
- https://kuvomudoriri.weebly.com/uploads/1/3/1/4/131406544/tagutep-sosetogamegid-tavowisexam.pdfIn PDF document text
- https://vatopefo.weebly.com/uploads/1/3/1/3/131398509/5151949.pdfIn PDF document text
- http://xariketixagat.mypressonline.com/9303723264.pdfIn PDF document text
- https://cdn.sqhk.co/xivomojuf/j21Ngix/230733480.pdfIn PDF document text
- https://cdn.sqhk.co/rotonoba/abNk4oS/47793788494.pdfIn PDF document text
- http://medyayazilimtr.com/830535396265ku7v.pdfIn PDF document text
- http://yoga-italy.space/top_ugandan_gospel_songsxtj3m.pdfIn PDF document text
- http://reestr.site/exercice_prefixe_suffixe_radical_imp1d4ou.pdfIn PDF document text
- https://vaxinukosiju.weebly.com/uploads/1/3/4/6/134625250/nulijezurozeti-zewugup.pdfIn PDF document text
- https://nitevugumosu.weebly.com/uploads/1/3/4/5/134526644/517fc0336f21.pdfIn PDF document text
- http://bopolubolef.mywebcommunity.org/bitusexekigawado.pdfIn PDF document text
- http://ruwemipuwev.mypressonline.com/vojudixedagibibewufezupi.pdfIn PDF document text
- https://vopoxeja.weebly.com/uploads/1/3/5/3/135346001/lujes.pdfIn PDF document text
- https://cdn.sqhk.co/rakujolo/ibggd4i/gidosuwujubigasusup.pdfIn PDF document text
- https://cdn.sqhk.co/sofizagumup/eQggCgf/89993316308.pdfIn PDF document text
- http://zunololanuxigu.sportsontheweb.net/html5_input_type_file_accept.pdfIn PDF document text
- http://nutristrike-shop.ru/36930782104py3xj.pdfIn PDF document text
- http://jolixasij.sportsontheweb.net/acreditao_hospitalar_download.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/xakusineba/hafele_india_catalogue.pdfIn PDF document text
- https://s3.amazonaws.com/kagedatabujo/unikey_ban_moi_nhat.pdfIn PDF document text
- https://s3.amazonaws.com/xenavuxa/36032725279.pdfIn PDF document text
- https://s3.amazonaws.com/xifabilejilab/18694049013.pdfIn PDF document text
- http://pimobepetokonud.myartsonline.com/ed_sheeran_castle_on_the_hill_chords_easy.pdfIn PDF document text
- http://kesolimasakifi.myartsonline.com/wekopurijubuxerejomax.pdfIn PDF document text
- https://s3.amazonaws.com/vukujidor/35317853490.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_off0000f398.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF398	5292 bytes
SHA-256: `71c1f1c38c270e9b03dae18a3cccdedd05af17c539e128d2d53a58ff48781335`
`font_01_sfnt_off00010590.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10590	10836 bytes
SHA-256: `faaef3f5f3131f881a7ea3ed155d183494a51b98dd19d33ab89529e61adfc11e`

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