PDF malware analysis — malicious · 1843a6f1dec59b0d

MALICIOUS

PDF

76.6 KB Created: 2021-03-23 10:06:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21

MD5: 4283dde2ba1e056cbeb5162a94c26dfc SHA-1: 2de5aeb7870b8aec282f6847ba14fe31ceff433e SHA-256: 1843a6f1dec59b0d8d186178f9cde14c30e49b7300d914bebdb0c5d776325e41

164 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains numerous external links, with one prominent link pointing to a suspicious domain ('botokaw.ru'), suggesting a lure to a malicious site or download. The document's content appears to be obfuscated or corrupted, but the presence of PDF_SEO_LINK_FARM and PDF_URI heuristics strongly suggests a link farm or redirection tactic. No scripts were extracted, but the overall structure and heuristic firings point towards a phishing or downloader attack pattern.

Machine Learning

Nyx PDF Classifier malicious score 0.9993

Heuristics 6

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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://botokaw.ru/strik?utm_term=beethoven+piano+sonata+no+10 PDF link annotation
- http://gopusoduj.mygamesonline.org/pokog.pdfIn PDF document text
- http://davupopebuwiser.sportsontheweb.net/the_fisherman_mourned_by_his_wife_summary.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4372354/normal_5fc9f94f074da.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4492253/normal_5fe0b772e488f.pdfIn PDF document text
- http://podifodosej.scienceontheweb.net/xaxofafoweritabivinuworo.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://c3438639-6a75-4920-aa4f-d1e0b619354f.filesusr.com/ugd/3be3a7_a4d38d72dcc74babb9f416ae63ef7e7c.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/ea83cfb3-d438-4835-b796-e628d16a37ac/gitag.pdfIn PDF document text
- https://s3.amazonaws.com/dofufiri/test_de_raven_escala_general.pdfIn PDF document text
- https://s3.amazonaws.com/mikibetiv/64478193527.pdfIn PDF document text
- http://mejefelutirarej.epizy.com/psychological_definition_of_performance_anxiety.pdfIn PDF document text
- https://s3.amazonaws.com/kumasala/adare_agamaki_music_video.pdfIn PDF document text
- https://ba10d46a-d7c1-43af-8542-f1a50f31aa8a.filesusr.com/ugd/4dded2_2d55b2bd1fae4eea832df697aa44641d.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/7f06b28a-e12d-48e1-ba01-58d84f71ed95/1234814842.pdfIn PDF document text
- https://s3.amazonaws.com/bisazabe/39025133114.pdfIn PDF document text
- https://4a1fbaa0-0e67-401b-a466-96699e2e5642.filesusr.com/ugd/9647bf_8433c66d07694511ae2792d07dda35f0.pdf?index=trueIn PDF document text
- https://5405d108-7f1e-482b-a10c-e06f62b7505d.filesusr.com/ugd/d941b1_1769e7d71d024c72b483ee9ee066e9d3.pdf?index=trueIn PDF document text
- http://furosusuz.epizy.com/gumalufitawarulugu.pdfIn PDF document text
- http://lowazuxakosilal.epizy.com/sevonomemidir.pdfIn PDF document text
- http://mumudok.epizy.com/leroguzij.pdfIn PDF document text
- https://s3.amazonaws.com/satedafadusizo/covenant_review_report.pdfIn PDF document text
- http://fazovalekotevo.onlinewebshop.net/centrifugation_notes.pdfIn PDF document text
- http://tamefizorala.epizy.com/53993316172.pdfIn PDF document text
- https://4123e755-5e7e-4fb8-b167-49ba90d37259.filesusr.com/ugd/fd3290_1dfbe84e90544af1a515786921abf5a5.pdf?index=trueIn 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_off0000ece4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xECE4	5080 bytes
SHA-256: `d64d5ecf2bdee6c37f22a56fedaec010da8d8654320e939c9b56ea0be64fea37`
`font_01_sfnt_off0000fe36.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFE36	11192 bytes
SHA-256: `7e41d9a980a0957cbdadc887ceb1dacc3c82132d3e6ec91cbfb944439af737fc`

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