Malicious PDF — malware analysis report

Static analysis result for SHA-256 e54e25e803e890ae…

MALICIOUS

PDF

84.1 KB Created: 2021-02-25 22:50:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 0f5bb436fafe8bb80842d2888083748b SHA-1: 2312a172d423ab88ff3dabf90fcfc4c0b321877c SHA-256: e54e25e803e890ae2dd676c574ea73f7165dedf32e3d479c281f9f739acf7b44
156 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by both ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains a large number of external links, suggesting a link farm or phishing operation. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristics point towards an attempt to redirect users to potentially harmful external sites.

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 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://seumenha.ru/strik?utm_term=how+to+change+power+steering+fluid+honda+element PDF link annotation
    • https://bajomunimiru.weebly.com/uploads/1/3/1/0/131070213/6138634.pdfIn PDF document text
    • https://nozubewow.weebly.com/uploads/1/3/1/1/131164313/25485.pdfIn PDF document text
    • https://tinedejoditof.weebly.com/uploads/1/3/5/9/135971312/pememaninijukuzedem.pdfIn PDF document text
    • https://matexofetuboso.weebly.com/uploads/1/3/1/4/131453592/situgawub.pdfIn PDF document text
    • https://potelukizul.weebly.com/uploads/1/3/5/9/135961045/dujobibofaxa.pdfIn PDF document text
    • https://divupamafotot.weebly.com/uploads/1/3/0/7/130739309/3577031.pdfIn PDF document text
    • https://cdn.sqhk.co/netimawifes/7LgfggE/solitaire_free_download_for_pc_windows_10.pdfIn PDF document text
    • https://cdn.sqhk.co/mesodimeduje/3iehdKT/mirisuzatenibofupogizakog.pdfIn PDF document text
    • http://vedoluzomo.iblogger.org/61187835321.pdfIn PDF document text
    • https://cdn.sqhk.co/zogameva/hilifjg/14770406904.pdfIn PDF document text
    • https://wowiwega.weebly.com/uploads/1/3/1/4/131453904/b99f3be37d9bc4f.pdfIn PDF document text
    • https://lozagazol.weebly.com/uploads/1/3/4/2/134266804/2f65b78913b.pdfIn PDF document text
    • https://cdn.sqhk.co/dajuzafum/K0jige2/8459820973.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xevivalekivo.epizy.com/39211330486.pdfIn PDF document text
    • http://xopunuz.epizy.com/falls_lake_crappie_fishing_report.pdfIn PDF document text
    • https://s3.amazonaws.com/xapota/door_hinges_placement_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jarirotexab/97197475602.pdfIn PDF document text
    • https://s3.amazonaws.com/febopa/inquisitor_martyr_trophy_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/fapaga/69000409701.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/are_lg_washer_and_dryers_reliable.pdfIn PDF document text
    • http://kuwokezolofe.epizy.com/comment_devenir_un_bon_agronome.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_off00010cb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CB5 5624 bytes
SHA-256: 6eb96577d736619a82cf11537bf8f8fbe91aedaa2d1a8f0a2a6896e79dd52483
font_01_sfnt_off00011fbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FBF 10248 bytes
SHA-256: b14137f5c8038fdfc51cf079ca1c2346c5514f320f4266e81847f81f8732cdd8

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