Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e42ed11c7d583eb…

MALICIOUS

PDF

85.7 KB Created: 2021-07-02 16:10:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 618727987b875c728282154f9f40cc82 SHA-1: bdc76eb7524f5034f7fe3002c673441b0ecb9cc1 SHA-256: 9e42ed11c7d583eb80082903d0dc3b956e2f78973fe90e291f1c5cecd1c35b32
196 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, including a specific ML classifier and ClamAV detection. The heuristics indicate it functions as an advance-fee scam lure, presenting language related to lotteries, prizes, or parcel deliveries that require payment. The document contains numerous links to external sites, many of which are hosted on compromised CMS platforms or disposable hosting, suggesting a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9860

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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
  • 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 http://ahcxdq.com/uploads/file/151054487275.pdf
    • https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c04b5f391f7---wokalexegaguzoboni.pdf
    • https://fotoprint.lv/downloads/file/875724884.pdf
    • https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/kaamrisjqqb022cj1artvtd8dl/bogiwevuxud.pdf
    • https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/e849ba7ce223ccf1bde344d0335c1a80/bezijekixudapowo.pdf
    • http://delawaretravelmedicine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bd3c72251a---ronenaputowusitafemug.pdf
    • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ad6434f116---bojexejagepojixona.pdf
    • https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac0b777ea44---sufanamo.pdf
    • http://chalappuram.com/userfiles/file/vabikanij.pdf
    • http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/160d79c4105274---dijen.pdf
    • http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/cf3a00e54c7c1e58ad5d18fe8be3e197/kewurolapaketojaropukepi.pdf
    • https://maconlux.lu/userfiles/files/48117364943.pdf
    • http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094867fb9696---88885312956.pdf
    • https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16074cbd438735---zizikuk.pdf
    • https://apz-arte.com/ckfinder/userfiles/files/towibuzorikux.pdf
    • http://blessedfamilycovenant.org/clients/c/cb/cb727bc273eb4203dc66fb73741ae5ae/File/39241243223.pdf
    • http://www.centralperdana.com/file/27229685750.pdf
    • http://bnblspecialities.com/userfiles/files/lomipu.pdf
    • http://kancelaria-perfect.pl/app/webroot/media/files/totagiruzutadavopa.pdf
    • https://steklo-shik.ru/userfiles/file/niwivelole.pdf
    • http://cnp-inc.com/ckupload/files/fudoxemipafigilevuludup.pdf
    • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/a37c736b215de1e12b4cdd652ff7bf4e/muzalixumoforisajebino.pdf
    • http://aaaexpressheating.com/userfiles/file/wenojotidejiro.pdf
    • http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160dce9440d30e---58328994130.pdf
    • https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/dbb5e99a84675ed9fcf469cfda480138/ruzolovisavewida.pdf
    • https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/jtjr99hbnpt4i00c7llgv87854/bewifakelifakubawobuben.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=when+baby+is+considered+full+term
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb50.bin
1a2b302b0dd58f6f4931827cfc3449592bc8d728712720b42e7bb50f14cf2853		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB50 11088 bytes
font_01_sfnt_off00010504.bin
cf4e98a84e6fbe9cd566bdc75689e0fd4ec7bc0c93345b236c56972d6c6ca01c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10504 16880 bytes
font_02_sfnt_off0001312d.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1312D 16792 bytes

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