Malicious PDF — malware analysis report

Static analysis result for SHA-256 fca0abd9923ac37a…

MALICIOUS

PDF

73.3 KB Created: 2021-04-02 00:54:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 02fca4ec115869a11b2d5c321244035b SHA-1: 216d8dc9dbbe81ddff367e96007bbcb9f19128a5 SHA-256: fca0abd9923ac37a373480b05f179222026c5b21c4f1cee0c5b3843d4f7904b4
156 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9991

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 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
  • 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://zajinet.ru/strik?utm_term=whirlpool+duet+front+load+washer+drain+hose PDF link annotation
    • https://sesuwulot.weebly.com/uploads/1/3/1/4/131438847/vazarubidufuke_kojakikomurelop_kolinirevax.pdfIn PDF document text
    • https://xuvelufuxilo.weebly.com/uploads/1/3/5/3/135387868/4715091.pdfIn PDF document text
    • https://metojonokodoto.weebly.com/uploads/1/3/4/8/134881876/jusavorikegale.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489852/normal_5fc5973c13003.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446161/normal_5fe00cabd84de.pdfIn PDF document text
    • https://derugipuze.weebly.com/uploads/1/3/0/8/130814861/d48933cbbf7863.pdfIn PDF document text
    • https://tivuzukabatabab.weebly.com/uploads/1/3/1/4/131405927/fetatotep.pdfIn PDF document text
    • http://jibitivi.66ghz.com/90761083583.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://a8a2d6b8-6248-42a0-90a4-e25e421c2e59.filesusr.com/ugd/f63f29_7540550761124e4982e6bfaf072c36ca.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/retisovojor/24365237899.pdfIn PDF document text
    • https://c6de0af5-2a4c-46da-924c-839bccb102c6.filesusr.com/ugd/5f1f0f_54ac2a89d98743c6b88ce8fac6bed50a.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xeponodij/oracle_sql_round_datetime_to_date.pdfIn PDF document text
    • https://s3.amazonaws.com/kotidox/gomati.pdfIn PDF document text
    • https://d5bea983-5bca-41ba-aae6-6b688785cc77.filesusr.com/ugd/9ec29b_ee1af439670e432c904f85ded7d74e07.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/75693013301.pdfIn PDF document text
    • https://e24ff460-1725-4b9d-a7de-f8438c38fea0.filesusr.com/ugd/366850_cb2e55ac36b84d8a945d7aa35fa72f7b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/85262729501.pdfIn PDF document text
    • https://s3.amazonaws.com/dowesitobuga/what_are_the_7_principles_of_art_and_their_definitions.pdfIn PDF document text
    • http://noxifepa.rf.gd/7634945633.pdfIn PDF document text
    • https://ac614e2c-2e00-43e4-a80f-2c6bce9fb64b.filesusr.com/ugd/f103bb_34f3614e79274a8da1db90b56073eb12.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/divikufifir/laduxe.pdfIn PDF document text
    • https://s3.amazonaws.com/jevelel/cheap_indoor_paintball_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/xupizewuxere/cassirer_symbolic_forms.pdfIn PDF document text
    • https://s3.amazonaws.com/dibedamoka/malupagili.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_off0000df69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF69 5232 bytes
SHA-256: 77f204d2059fe33085b39ade9c93d613769f2f5e3297f7b51061c5c5bbfa06d5
font_01_sfnt_off0000f14c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF14C 10624 bytes
SHA-256: 1c3d7d08947d60f1adf8a502de1b9ee67c2b1744488e9db33cfefa7dee7c91cc

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