Malicious PDF — malware analysis report

Static analysis result for SHA-256 249ec01bef2dd6e7…

MALICIOUS

PDF

78.2 KB Created: 2021-03-15 16:33:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 26a013c490c50e5fb3ba3d734fedba4a SHA-1: d1b5a9aefd0028cd956ba468f6051ec9a1b19ef1 SHA-256: 249ec01bef2dd6e73fb146cf187b59b11c28ac61fbf337f3152704461b1d9fd6
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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 0.9996

Heuristics 5

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/strik?utm_term=romeo+and+juliet+act+1+test+pdf PDF link annotation
    • http://lami-lashes.site/braun_brewsense_12-cup_drip_coffee_maker_reviewscatwa.pdfIn PDF document text
    • http://oneplusonemain.xyz/makeda9gvve.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446015/normal_601503d7bacb7.pdfIn PDF document text
    • https://cdn.sqhk.co/fivufotimad/NUidp43/46046629484.pdfIn PDF document text
    • https://cdn.sqhk.co/gamakokub/ldhfjj9/jojo_last_survivor_pc_release_date.pdfIn PDF document text
    • http://shoppingyxplus.xyz/14890253549e5wo9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378152/normal_5fde1ce21bd04.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401985/normal_6027aae9c82dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477386/normal_602eeeb2bdfbd.pdfIn PDF document text
    • http://stavki-na-sport.site/luces_de_bohemia_selectividadjfkzv.pdfIn PDF document text
    • http://itayoga.space/dell_latitude_e6540_core_i5_4300m8xcxu.pdfIn PDF document text
    • https://cdn.sqhk.co/bijilixiger/QJvOibM/alto_s_adventure_pc_online.pdfIn PDF document text
    • http://likelid.xyz/12214919224huxb0.pdfIn PDF document text
    • http://gratoraama.space/dj_baby_shark_remixbegw2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://68fdcf0a-b1f0-4758-9edf-48d2be6d990b.filesusr.com/ugd/ac51ce_00cc4c3feaf54e72a78cbee695afb95e.pdf?index=trueIn PDF document text
    • https://4b67404f-136a-46a0-9cf3-151f2d38faab.filesusr.com/ugd/241fd5_6fe6d6a832824677bbedbfd8752a4633.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/94213112757.pdfIn PDF document text
    • https://s3.amazonaws.com/zebarufuridorur/fisher_and_paykel_oven_spare_parts_sydney.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/99088666294.pdfIn PDF document text
    • https://s3.amazonaws.com/loneminovu/49824221758.pdfIn PDF document text
    • https://s3.amazonaws.com/mamibis/37280849406.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f41a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF41A 5340 bytes
SHA-256: 6bb33a92254717be64a0ef33bcf7ea49726be7d8912639377a86c12247dc3a35
font_01_sfnt_off00010648.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10648 10924 bytes
SHA-256: d552c3545d962e30f178a7e75759abaeb3fba62ad725c564dc0ad7bdac04100b

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