Malicious PDF — malware analysis report

Static analysis result for SHA-256 d119222ff10f297d…

MALICIOUS

PDF

83.8 KB Created: 2021-09-21 01:21:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 5ab253bf8bdf8a49b52056fcbb064ebd SHA-1: 4b796f83ab7b0f2bf65f29353f8afc5df073e1b0 SHA-256: d119222ff10f297d04a167e0455c7b94dba583f28a7c4d96dab4c29e8549a143
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous external URIs, many of which point to disposable hosting and are likely used to distribute further malicious content or phish for credentials. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://garglob.ru/uplcv?utm_term=telecharger+system+android+pour+pc PDF link annotation
    • https://impeka.lt/components/com_mijoshop/opencart/image/data/files/silenipetuvepaki.pdfIn PDF document text
    • http://nassagroup.org/app/webroot/js/ckfinder/userfiles/files/48771426756.pdfIn PDF document text
    • http://szcftz.com/upload/16505425299.pdfIn PDF document text
    • http://solemarservizi.it/userfiles/files/25131409237.pdfIn PDF document text
    • http://akademia-jedenastka.pl/zdjecia/fck/file/51951161153.pdfIn PDF document text
    • https://aradmissions.com/ci/userfiles/files/xuganijepu.pdfIn PDF document text
    • http://goldmustang.com/files/files/61970903210.pdfIn PDF document text
    • http://takramaipai.com/mypicture/file/xidixibuzelol.pdfIn PDF document text
    • http://mobilni-kadernictvi.cz/files/file/44089978104.pdfIn PDF document text
    • http://brezov-gaj.si/uporabnik/file/76538135040.pdfIn PDF document text
    • https://efsanepin.com/calisma2/files/uploads/5357234645.pdfIn PDF document text
    • http://benjapakee.net/UserFiles/File/50685894364.pdfIn PDF document text
    • https://superpart.com/files/70270903111.pdfIn PDF document text
    • http://bud-med.eu/userfiles/file/bozujusixolodojinum.pdfIn PDF document text
    • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141df73c0909---xevulewogepabafozuralib.pdfIn PDF document text
    • https://transmilenio.net/datamont/userfiles/file/saposiwasuwigezededubak.pdfIn PDF document text
    • http://bonfiremadigan.com/uploads/fckeditor/file/30697539568.pdfIn PDF document text
    • http://pantanalmsnews.com.br/ckfinder/userfiles/files/baxareniragizijoz.pdfIn PDF document text
    • http://mezon.jp/userfiles/file/welewiwaresa.pdfIn PDF document text
    • http://www.rosabrockenhaus.ch/ckfinder/userfiles/files/90672333359.pdfIn PDF document text
    • https://red-adlay.com/upload/files/27632676960.pdfIn PDF document text
    • http://csa.china-led.net/static/editor/ckeditor/ckfinder/upfile/files/lijesejurukizozew.pdfIn PDF document text
    • http://ecole-belair.com/ecole/file/buzosudefusozujofamufare.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_off0000df93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF93 11140 bytes
SHA-256: d4898f12d103523f8effdca78d46434b05c76bdffe3d10c337b439aace351be6
font_01_sfnt_off0000f942.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF942 18160 bytes
SHA-256: 6a1366917d9bac6950673ba61b36e6d69a91843fff113395d04aaa75bff8b4f7
font_02_sfnt_off00012764.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12764 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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