PDF malware analysis — malicious · aebade0df2ca96d1

MALICIOUS

PDF

80.7 KB Created: 2021-05-17 22:25:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25

MD5: f605f8c2cdd572961305a2dacf63f84b SHA-1: 838ab1310740aea10c350d0a2cebfff8894d23a2 SHA-256: aebade0df2ca96d10b18e4fc5f3b8d21294cee16a52ad3088a2cce7fcf6c89cb

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.8775

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 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.
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://ponafet.ru/strik?utm_term=algebra+1+chapter+5+assessment+book+answers PDF link annotation
- https://betedodokadez.weebly.com/uploads/1/3/4/8/134882186/c8f7a7ca426.pdfIn PDF document text
- https://fekebejoluxoji.weebly.com/uploads/1/3/4/3/134309121/menibab.pdfIn PDF document text
- http://veranezos.iblogger.org/32220354734.pdfIn PDF document text
- https://jaxenexeleti.weebly.com/uploads/1/3/5/3/135320290/wokamapajazasonu.pdfIn PDF document text
- https://toxupenowa.weebly.com/uploads/1/3/4/0/134042648/lonolurisebeje_gefabubafufu_mazadizuziva.pdfIn 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/443eaf77-e4d3-446f-8081-7601604aa033/zesonizajawesevuxune.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e9d398d2-d531-4196-baa2-d1275437834c/here_comes_the_sun_ukulele_fingerpicking_tutorial.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1324872a-1624-4c7c-8f1c-bd5a0cb276e7/tanikunenokanaba.pdfIn PDF document text
- https://s3.amazonaws.com/mejados/68589597609.pdfIn PDF document text
- https://s3.amazonaws.com/zuwimadaneb/waverley_train_station_platform_layout.pdfIn PDF document text
- https://s3.amazonaws.com/muxegeza/27755261389.pdfIn PDF document text
- https://s3.amazonaws.com/rozebofukixus/82391681644.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/104308f6-34be-4d44-8a3c-e28aa43f1300/what_age_are_mini_rex_rabbits_fully_grown.pdfIn PDF document text
- https://s3.amazonaws.com/bupaxomu/videoder_apk_2019_premium.pdfIn PDF document text
- http://warozuvade.epizy.com/99471947666.pdfIn PDF document text
- https://s3.amazonaws.com/sabegokek/zogozamopilopejudefupog.pdfIn PDF document text
- http://pukafenofi.epizy.com/wasteland_survival_guide_fallout_3_quest.pdfIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000117d1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x117D1	5548 bytes
SHA-256: `0580b3ed191800d27ebd7e896f0a6e2b6a8b334555290be20b89eda06e68c9b9`

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