Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f68955950b36dbd…

MALICIOUS

PDF

64.2 KB Created: 2021-05-13 05:20:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 24546bdcfc47883cf6a0d8a18aecaa00 SHA-1: 23bd7cb4e5257bd111355e22a24b4bc64d7314bb SHA-256: 8f68955950b36dbde5f118d72758db33dc9f1a27431c4d64466616e7947d6479
186 Risk Score

Malware Insights

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

This PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO manipulation tactic. The primary URL, https://lozipotod.ru/strik?utm_term=when+to+use+rejuvenique+oil, is likely intended to redirect users to malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://lozipotod.ru/strik?utm_term=when+to+use+rejuvenique+oil PDF link annotation
    • http://raguvigawak.mypressonline.com/10471316998.pdfIn PDF document text
    • http://paruweropu.iblogger.org/81997462992.pdfIn PDF document text
    • https://rakerekibakefe.weebly.com/uploads/1/3/4/5/134596095/f73247.pdfIn PDF document text
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/wapifefamit.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zovibeviniga.myartsonline.com/cd_risc_10.pdfIn PDF document text
    • http://nifusotajezunur.atwebpages.com/classroom_management_articles.pdfIn PDF document text
    • https://32052e82-6ed6-442b-b517-916023d250c3.filesusr.com/ugd/e33828_d1858f0f9cd0473d89278c6894bf8887.pdf?index=trueIn PDF document text
    • http://javozajesaretu.epizy.com/different_forms_of_verb_seek.pdfIn PDF document text
    • http://kagibog.epizy.com/how_to_clean_simplehuman_soap_dispenser.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6267a57d-8ab2-4476-b293-afaedb4815c0/what_is_the_focus_of_vygotskys_theory_of_cognitive_development.pdfIn PDF document text
    • https://s3.amazonaws.com/dikobepibelun/according_to_matthew_film.pdfIn PDF document text
    • https://41c240d9-b4af-4f88-8fa4-2a41cce3a287.filesusr.com/ugd/01bc73_18a5223d3e734478babcdcc7815952d2.pdf?index=trueIn PDF document text
    • https://75e6d08a-b14f-4c2c-bd4e-3e6431d9d11c.filesusr.com/ugd/497a87_c8b949c1f4484a8eaad167e90f0d065e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e3eb04b-ce47-4d7a-8731-8505c93a555d/pitixaboxapotigorutemab.pdfIn PDF document text
    • https://s3.amazonaws.com/liguwubore/bhagavad_gita_odia.pdfIn PDF document text
    • https://db244590-af71-4c33-bd6e-2f8f55f31281.filesusr.com/ugd/fdab61_2908436fd5fa47d9a49d69cbfb9954da.pdf?index=trueIn PDF document text
    • http://magivaxinel.rf.gd/interpreting_financial_statements.pdfIn PDF document text
    • http://vovuvap.rf.gd/kusuwakesojidudebuxina.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c2f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2F2 4836 bytes
SHA-256: 279afc6e59fc830e5f899f7322245362c490a803d3d4206d7fe4e4723b1f15d6
font_01_sfnt_off0000d378.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD378 9416 bytes
SHA-256: 74b978687c0a913db826d85101192d148299527f96edfb7fe4593b4df66445a8

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