Malicious PDF — malware analysis report

Static analysis result for SHA-256 030e7ed3fc551b8f…

MALICIOUS

PDF

65.1 KB Created: 2021-06-08 13:32:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3e75bfbf0cad7904faf54c4f5621bbb2 SHA-1: 9d171cf66a9bd96e38b7c7405cbf64d661380995 SHA-256: 030e7ed3fc551b8f27a93791669d06ebda805d1fc5a55761882cedeb65e69128
124 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.8471

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://queure.ru/pbw?utm_term=math+coloring+worksheets+for+1st+grade PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4460255/normal_604d40ccbf8cb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489843/normal_605242f553f9c.pdfIn PDF document text
    • https://ditixalopu.weebly.com/uploads/1/3/1/4/131410538/8418a2021004.pdfIn PDF document text
    • https://jikidamasot.weebly.com/uploads/1/3/4/8/134874174/rorimazonojanud_xuwojub_tesevalodid_xesegetamax.pdfIn PDF document text
    • https://veximukexapi.weebly.com/uploads/1/3/0/9/130969798/bakegawiz-xuvanakojigal.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464527/normal_60034ab10fbb2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385612/normal_5fc841db27634.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502698/normal_5fecc4119d4fc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bemulopawed.pbworks.com/f/94876432449.pdfIn PDF document text
    • http://wikitaxif.pbworks.com/w/file/fetch/144551703/clean_equalizer__bass_booster_pro_apk_download.pdfIn PDF document text
    • http://buvavipoluvu.pbworks.com/f/jijukafetez.pdfIn PDF document text
    • http://patimedudemu.pbworks.com/f/91892387441.pdfIn PDF document text
    • http://jananevava.pbworks.com/w/file/fetch/144774714/12087814384.pdfIn PDF document text
    • http://siseraxoru.pbworks.com/w/file/fetch/144485367/65236607612.pdfIn PDF document text
    • http://zufumegi.pbworks.com/f/understanding_and_using_english_grammar_workbook_full_edition_with_answer_key.pdfIn PDF document text
    • http://mozodeguzazu.pbworks.com/f/neet_2018_brochure_download.pdfIn PDF document text
    • http://betosaxugawi.pbworks.com/w/file/fetch/144647607/85257073117.pdfIn PDF document text
    • http://vipafuwusawe.pbworks.com/f/lojemawuzezanituvegukota.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f5d9f63-fba8-471b-947d-c873404469be/75221107018.pdfIn PDF document text
    • http://ditidema.pbworks.com/f/68660785129.pdfIn PDF document text
    • http://redelaw.pbworks.com/f/product_warranty_certificate_sample.pdfIn PDF document text
    • http://xifilipisi.pbworks.com/w/file/fetch/144575007/26721060966.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6aea02e8-381c-4e8a-b537-b1c4e38eb9d1/wagilowijojekekilibob.pdfIn PDF document text
    • http://zexowisam.pbworks.com/w/file/fetch/144427644/jedeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0ba36f4-e3b0-4d5b-8197-c02ac27d780f/sakifuled.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e179.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE179 5496 bytes
SHA-256: 5360cdc86c1947a5cd2af321e5b583977e9bf8fb998cb5169590c3c5267d838e

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