Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ab64fb8ef4641a7…

MALICIOUS

PDF

62.5 KB Created: 2021-06-02 00:17:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5f6c8086231b09957120a714bc74efc2 SHA-1: 7124d399921df9f51481e57a5374a1c567c715e0 SHA-256: 7ab64fb8ef4641a74711cf8292a673f8b9c7f439e244162a757846f8697a56b6
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a large number of external links, disguised as an IELTS academic writing practice test. This behavior is indicative of a link farm designed to redirect users to potentially malicious websites. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8467

Heuristics 5

  • 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.
  • 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://archism.ru/pbw?utm_term=ielts+academic+writing+practice+test+with+answers+pdf+2019 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4384480/normal_606750d2324eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416305/normal_602b6a339ccd1.pdfIn PDF document text
    • https://felixitu.weebly.com/uploads/1/3/4/0/134012625/fee3ecb951d1c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424036/normal_60401e16e88d7.pdfIn PDF document text
    • https://nukewixe.weebly.com/uploads/1/3/4/3/134385223/gososefisu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403413/normal_601d5d866ebba.pdfIn PDF document text
    • https://ziwivebagojub.weebly.com/uploads/1/3/1/8/131871618/3573756.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413455/normal_5fc77176d5ee4.pdfIn PDF document text
    • https://lapawiniposa.weebly.com/uploads/1/3/5/3/135323982/gajuri_nosebumomom_nojinuviko.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380682/normal_5fe2535ea20df.pdfIn PDF document text
    • https://mosatidopo.weebly.com/uploads/1/3/4/7/134731439/ef29efac14.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454682/normal_601d151c83ab0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://banusiv.pbworks.com/f/vexoxu.pdfIn PDF document text
    • http://gatasulupu.pbworks.com/f/rajakeraguzapuxiwili.pdfIn PDF document text
    • http://magogopowo.pbworks.com/f/is_dish_network_good_for_gaming.pdfIn PDF document text
    • http://mibegenav.pbworks.com/w/file/fetch/144466455/how_to_fix_comma_splices_and_run_on_sentences.pdfIn PDF document text
    • http://siruzosu.pbworks.com/w/file/fetch/144449520/14831485928.pdfIn PDF document text
    • http://bilabegape.pbworks.com/f/master_organic_chemistry_study_guides_free.pdfIn PDF document text
    • http://pagorevet.pbworks.com/w/file/fetch/144473190/what_to_feed_baby_blue_tongue_lizards.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE0B 5756 bytes
SHA-256: 7e4e317d2dde3e5b8b0ac1048c9259612559bc01c7830b84b9eeeac06f6f6aa1

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