Malicious PDF — malware analysis report

Static analysis result for SHA-256 a68c7c2d213eb3ab…

MALICIOUS

PDF

62.3 KB Created: 2021-09-07 14:04:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: c3ca5693a337822076c7026b5271f850 SHA-1: b7d9cc084e404778e0ad0d286facb6e7f7c70d04 SHA-256: a68c7c2d213eb3abb731406414235a4641f9cc66647caca904764474377b6b62
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains a link farm with multiple URLs pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to lure users to malicious content. The primary lure appears to be a fake download link for 'indrajal comics phantom free download pdf'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6429

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://aldea.work/wp-content/plugins/super-forms/uploads/php/files/163ba8fd09cf2d69d7c0ef23b29664ed/56187818991.pdf
    • http://ithaca1966.com/clients/8/85/85e9e0a76fddb83d7689cebc6ab07fae/File/kudigud.pdf
    • http://mfahk.com/upload/files/jozivulemolawifolis.pdf
    • https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/e2503f6bae233ee93264bcc88ad043da/18971674465.pdf
    • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16083cf29eefb9---konorezawof.pdf
    • https://topinsolventa.ro/userfiles/file/zinutogewabe.pdf
    • http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160aed1b58706f---nugufifal.pdf
    • https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/3672ca493a18d760298dd70a4274c478/71512825716.pdf
    • https://reniuved.it/file/xutekojoge.pdf
    • https://searchlink.org/userfiles//file/nexiganeraj.pdf
    • http://quaint-house.com/19069844493.pdf
    • http://naasschoolofmotoring.ie/fckeditor/userfiles/file/43174497727.pdf
    • http://shukokai-voves.fr/userfiles/file/41227250223.pdf
    • http://yurisolomko.com/userfiles/file/92916865262.pdf
    • https://www.beadvised.co.uk/wp-content/plugins/super-forms/uploads/php/files/c4077ce43a1c9ab5124068932d619247/81994467603.pdf
    • https://abzesolar.com/uploads/files/vezuguxi.pdf
    • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609c0ffa7f108---27818453529.pdf
    • http://firewheels.pe/userfiles/file/tedagusuxutofusulofujufi.pdf
    • https://xo-sound.ru/userfiles/file/xepilinumogajotixupi.pdf
    • https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/thkn9cbplft33b8aii0h777gkt/zamut.pdf
    • http://reelproductionshd.com/userfiles/file/runogigumegip.pdf
    • http://yuanhebiotech.com/upload/files/24245300349.pdf
    • http://www.odnpoznan.pl/fotki/file/file/nijuvexexevumawo.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=indrajal+comics+phantom+free+download+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_off0000b5c1.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB5C1 16792 bytes
font_01_sfnt_off0000cdd3.bin
4f2659a2ad80cf945dda257cc249820ea9bbcc44bddc08adf39913e1380b372b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCDD3 16620 bytes

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