PDF malware analysis — malicious · e1ecc2938c4ba4f7

MALICIOUS

PDF

101.3 KB Created: 2021-02-25 00:58:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31

MD5: 1e590c43142d2b3b8b8b16524261aae1 SHA-1: 0fbbe28347e2b3d7dc71185fbf7c67b90d7fb4e0 SHA-256: e1ecc2938c4ba4f79a298237b10886d809774cf0f85f65ab2719afd67f0251fc

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains keywords related to astronomy, likely used as a pretext to drive users to the malicious URLs.

Machine Learning

Nyx PDF Classifier malicious score 0.8857

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
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
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://baarspo.ru/award?keyword=astronomy+and+the+relativistic+doppler+shift+mastering+physics PDF link annotation
- http://tuimag.ru/jasperreports-_functions_maven_repositoryl7dh9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378827/normal_5fd5f6a43388a.pdfIn PDF document text
- http://veronaital.space/zombs_royale._io_unblocked_7684mhb.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4390684/normal_5fc60fc69fc19.pdfIn PDF document text
- http://videohost.space/kunosifatafufemozofeb7aigc.pdfIn PDF document text
- http://drovazvenigorod.ru/ambarsariya_mundeya_video_song6rn81.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421782/normal_5fd82ae27f9f6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4402953/normal_601eff6d1f131.pdfIn PDF document text
- http://mobile-media.moscow/what_is_the_meaning_of_communication_skills_in_managementf877v.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4497081/normal_600f3c4641873.pdfIn PDF document text
- http://newuwedeza.mypressonline.com/77258880756.pdfIn PDF document text
- http://csxmoney.info/sch_enrich_your_ielts_vocabulary4xd51.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/gumegulaxi/drawing_and_interpreting_bar_charts_worksheet_tes.pdfIn PDF document text
- https://s3.amazonaws.com/rolefosiju/wapking_new_bollywood_movie_song.pdfIn 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_off000151a2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x151A2	5720 bytes
SHA-256: `ae5df8160eebfd0814c75b3a9934c7bd1ab15f39e8b949c1d76bd552c3bc3e8e`
`font_01_sfnt_off000164fd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x164FD	12048 bytes
SHA-256: `2cf068624f2663421401700bdccc60c89d1b3be7c5134ed5514c02f89870048f`

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