Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2aabf58382bdfbc…

MALICIOUS

PDF

81.8 KB Created: 2021-09-13 20:26:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 59f66e0d71e1c2aec84bb07594c10027 SHA-1: 8912efa1312828dc9b2307dc3e6392417644e530 SHA-256: c2aabf58382bdfbc1ad179b340fddd5d1eb71f5372595fc0b5335899f4874708
126 Risk Score

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 0.9949

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://smidgel.ru/uplcv?utm_term=toolbox+for+minecraft+pe+premium+apk PDF link annotation
    • http://robotsuk.com/luckingbros.co.uk/userfiles/files/43529413281.pdfIn PDF document text
    • https://media-get.ru/userfiles/files/dinifawusekutupe.pdfIn PDF document text
    • https://cytairtool.com/test/userfiles/file/20210906_58a7a.pdfIn PDF document text
    • http://apexnepaltravel.com/userfiles/file/3740276131.pdfIn PDF document text
    • https://propertiproperty.com/Uploads/userfiles/files/xaserosapan.pdfIn PDF document text
    • http://ydtmuhendislik.com/ckfinder/userfiles/files/gaxikuduta.pdfIn PDF document text
    • http://stoewebdesign.no/userfiles/file/lepovox.pdfIn PDF document text
    • http://mq-water.net/upload/75559261972.pdfIn PDF document text
    • https://ceylanotel.com/firma/files/lifuninaxobotikukirew.pdfIn PDF document text
    • http://luchetti.it/userfiles/files/wafumodaxosewa.pdfIn PDF document text
    • https://aannemingsbedrijfbarthulsbosch.nl/userfiles/file/78784691313.pdfIn PDF document text
    • http://abwfinlay.com/uploads/files/78969687190.pdfIn PDF document text
    • https://kvzriu.org/images/file/pekajumenakiwisobe.pdfIn PDF document text
    • http://sriraghavendratemple.com/ckfinder/userfiles/files/77856105724.pdfIn PDF document text
    • https://mytshirtcreator.com/app/webroot/files/file/34142071132.pdfIn PDF document text
    • https://www.prshots.com/ckfinder/userfiles/files/fifawa.pdfIn PDF document text
    • http://cserepakcio.hu/xdata/file/88292962212.pdfIn PDF document text
    • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/161378d23db550---noguzukijupawebod.pdfIn PDF document text
    • https://korvioinfotech.com/ckfinder/userfiles/files/rozukizokapafamabiraputej.pdfIn PDF document text
    • http://bajcsidavidfoto.com/_user/file/53864690767.pdfIn PDF document text
    • https://szaniterplaza.hu/ckfinder/userfiles/files/13004950325.pdfIn PDF document text
    • http://bscartridge.com/pic/xasuvoniruduzeroweso.pdfIn PDF document text
    • http://esen-life.com/userfiles/file/zaworigikodajinugomi.pdfIn PDF document text
    • http://tolaniprojects.com/userfiles/file/paponipizujamemukudagu.pdfIn PDF document text
    • http://clubesquilacoma.com/uploads/files/robivafafo.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_off0000d947.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD947 10868 bytes
SHA-256: d51aa340af5829cd656bd548c0c5891ba8490020b0441cc8de95325ca350e72f
font_01_sfnt_off0000f22c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF22C 18324 bytes
SHA-256: d0939fc4146c5005612c008f60f643913f26f87ff057d33a5beaf84684118273
font_02_sfnt_off0001219e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1219E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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