Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0b199358d5e161a…

MALICIOUS

PDF

82.4 KB Created: 2021-09-23 19:15:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 5dd0b849bb706a99763a4acd78c4cf08 SHA-1: f9a8689fffadac620de91af65b2c42f8af8279ee SHA-256: e0b199358d5e161a9384184168d747dd9edf787dee3670b4315dcd76c9827ea9
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links, many of which are part of a link farm hosted on disposable domains, suggesting a phishing or malware distribution scheme. The presence of a URL related to 'pokemon go mega evolution hack' indicates a lure to entice users to click and download further malicious content. ClamAV and ML classifiers also flagged this PDF as malicious, reinforcing the assessment of its harmful intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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://drafthe.ru/uplcv?utm_term=pokemon+go+mega+evolution+hack PDF link annotation
    • http://aaaexpressheating.com/userfiles/file/kanizadurobezorasotoxoru.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161310724f3021---30751057512.pdfIn PDF document text
    • http://sprinter-lab.ru/content/File/lotonurar.pdfIn PDF document text
    • http://meubelenindex.nl/images/uploads/90009277461.pdfIn PDF document text
    • https://qud27rxl1-k61l.com/contents/files/mawipizofolaxo.pdfIn PDF document text
    • http://ityab.com/cache/fck_files/file/91938698553.pdfIn PDF document text
    • https://cryptobasics.biz/uploads/files/lararudala.pdfIn PDF document text
    • http://naturallabs.fr/userfiles/file/zavutopiraxixijibujox.pdfIn PDF document text
    • https://www.totalblissbeauty.com.au/application/third_party/ckfinder/userfiles/files/34465048786.pdfIn PDF document text
    • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/161390a1a5339a---21949153829.pdfIn PDF document text
    • https://www.sexualaufklaerung-schule.ch/ck/ckfinder/userfiles/files/39222354405.pdfIn PDF document text
    • https://giasidaily.com/uploads/userfiles/file/vobev.pdfIn PDF document text
    • https://buffinvestment.com/upload/ckfinder/files/sosowo.pdfIn PDF document text
    • http://youandisagenix.com/ckfinder/userfiles/files/59108436682.pdfIn PDF document text
    • https://medgal.pl/admin/ckfinder/userfiles/files/bijugipejubifinufebumeso.pdfIn PDF document text
    • http://xinyaoqiye.com/upload_fck/file/2021-9-15/20210915220745796664.pdfIn PDF document text
    • https://cardolf.ro/files/85896819072.pdfIn PDF document text
    • http://dagmare.de/userfiles/file/mularuweki.pdfIn PDF document text
    • https://polaria.cz/images/file/wovedabunav.pdfIn PDF document text
    • http://zuszdounky.cz/files/wesogamejakosuroseresi.pdfIn PDF document text
    • http://medicareclinichowrah.net/faboriginelist-braj/userfiles/file/16074033979.pdfIn PDF document text
    • http://milwaukee.center/userfiles/file/texen.pdfIn PDF document text
    • http://ccsilver.kr/files/fckeditor/file/18409697236138ad9c59074.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7D9 10668 bytes
SHA-256: 89a6da4665d4e89ba3005224b5d564ea5541228805830f16fba0d6bf8e0492b5
font_01_sfnt_off0000f025.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF025 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010837.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10837 19352 bytes
SHA-256: 714582db15f8da4247b248730aaa28309eadc63db797b90cf7785645325e5415

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