Malicious PDF — malware analysis report

Static analysis result for SHA-256 30ccad5297db4d61…

MALICIOUS

PDF

84.6 KB Created: 2021-09-19 05:05:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: a3208d04824156fe23b6de0d5091b9a6 SHA-1: a95bac2f97af1409736de0f325c6ac7269494e31 SHA-256: 30ccad5297db4d6196d336f3f82346203feec407ddf4a2cdc2a23d1e4f184c02
94 Risk Score

Malware Insights

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

The file was detected by ClamAV as Pdf.Phishing.Trojan. It contains numerous external URLs, many of which are hosted on disposable domains and appear to be part of a link farm, a common tactic for phishing or malware distribution. The PDF structure and embedded URLs suggest it is intended to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4862

Heuristics 4

  • 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
  • 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=let+him+go+the+movie
    • http://harchovyk.com/userfiles/file/11564895716.pdf
    • https://noventa.cz/media/files/file/35429084437.pdf
    • https://lalicorne-hotel.com/userfiles/file/97365720977.pdf
    • https://tfsroanoke.com/home/tfs/public_html/new/ckfinder/userfiles/files/34161591659.pdf
    • http://vektor-bezpeki.com/userfiles/files/fiwivusokesugekideris.pdf
    • http://www.scea.edu.mn/ckfinder/userfiles/files/29895674627.pdf
    • http://lorofilmes.com/Uploads/ckfinder/userfiles/files/kilubojamapataxajejike.pdf
    • http://baggiez.net/userfiles/file/pugezejumofitexosimu.pdf
    • https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/f356ru90d3mgk1c8sdr6r1h9lb/fazebiz.pdf
    • http://www.horakgolf.cz/ckfinder/userfiles/files/lobuxagewof.pdf
    • https://lockerova.eu/admin/upload/documents/36240981940.pdf
    • http://087334211.kad.tw/kads/ckfinder/userfiles/files/9644336792.pdf
    • https://maggievanostrand.com/uploads/media/file/64404493075.pdf
    • http://quangcaosms.org/media/ftp/file/xovijetadatoxabid.pdf
    • https://groupunsur3.com/contents/files/49355817782.pdf
    • https://www.leadercaravans.com.au/application/third_party/ckfinder/userfiles/files/79404418870.pdf
    • http://angelofthewinds.net/ckfinder/userfiles/files/94748955838.pdf
    • https://muguet.fr/sites/default/files/file/samorogubukonuzigawugagel.pdf
    • http://malir-naterac.info/UserFiles/File/21093416609.pdf
    • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614658709ab36---revazodumipurozatijiniri.pdf
    • http://back2wood.de/userfiles/file/lofibaripominevofumuzex.pdf
    • https://megacook.pt/site/upload/file/92763554888.pdf
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010ae8.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x10AE8 16792 bytes
font_01_sfnt_off000122fa.bin
f0c09d39e5c28bc924c096aba20513e40523f92f36b632e4b580af74faa881ea
pdf-font-stream PDF embedded font (sfnt) at offset 0x122FA 17868 bytes