PDF malware analysis — malicious · 14c4e0c2b0888a85

MALICIOUS

PDF

100.6 KB Created: 2021-02-23 03:58:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23

MD5: 2684a00d67beaf68fd06c4dbae8f5bee SHA-1: 03d2805dc6fbd47545f7db6a866191cce36f68da SHA-256: 14c4e0c2b0888a85bd495fbac201ffeaa69fc776cf2a489200cdd4a9a8b1e516

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution 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 0.9725

Heuristics 4

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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://jacksth.ru/aws?utm_term=what+were+salons+during+the+enlightenment PDF link annotation
- https://nugijokokul.weebly.com/uploads/1/3/0/9/130969158/gowoxidonez_fofenim.pdfIn PDF document text
- http://creampiepow.club/richard_l_daft_management_11th_editiiavcy.pdfIn PDF document text
- https://cdn.sqhk.co/wujakegu/o1Qiggh/53048617876.pdfIn PDF document text
- http://mebelintera.ru/best_motorcycle_for_1000_dollarsrxmfv.pdfIn PDF document text
- https://gajifawegux.weebly.com/uploads/1/3/4/6/134649352/1dff374a632375.pdfIn PDF document text
- http://salet.store/95506190487l7iwy.pdfIn PDF document text
- https://cdn.sqhk.co/dasisogi/ALic9QW/27754555435.pdfIn PDF document text
- http://mybatut.store/35338772957fev67.pdfIn PDF document text
- https://guvufusefek.weebly.com/uploads/1/3/1/0/131070011/vovalifo.pdfIn PDF document text
- https://cdn.sqhk.co/wuzededoz/z6jhjjW/spanish_learn_in_english.pdfIn PDF document text
- https://cdn.sqhk.co/daposofoxig/eTMhgia/zombie_pandemic_similar_games.pdfIn PDF document text
- http://price-list.moscow/how_many_sentences_in_a_paragraph_apawguw2.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/forupokisip/63220423991.pdfIn PDF document text
- https://s3.amazonaws.com/xulepiwa/vevakujugil.pdfIn PDF document text
- https://s3.amazonaws.com/fopalew/cbse_private_candidate_form_2018_last_date.pdfIn PDF document text
- http://natomilalusirof.rf.gd/fetepunap.pdfIn PDF document text
- https://s3.amazonaws.com/biwuwukesazef/the_feudal_hierarchy_of_japan_worksheet_answers.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_off00016adb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x16ADB	5228 bytes
SHA-256: `44c198a14f67f48b20d531046a1516ee80410a77a7430010df58b62113a4e21c`

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