Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ac7e2f5e12af87f…

MALICIOUS

PDF

94.8 KB Created: 2021-07-03 01:45:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: f182fece99a93651aa3795afca31cbb5 SHA-1: a9d9ad0654b6befd4fbcc78ea78a3620ddf856c1 SHA-256: 1ac7e2f5e12af87fc48f137df5a35658a658cb57123d30faced285426336e603
204 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous links to external sites, many of which are hosted on compromised WordPress installations or disposable domains, indicating a phishing or scam attempt. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' strongly suggests the document's purpose is to trick users into providing personal information or money under the guise of a lottery or parcel delivery. The embedded JavaScript likely facilitates the redirection or further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9806

Heuristics 8

  • 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.
  • 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 http://colorfulmedia.de/fotki/fotki/file/79426629951.pdf
    • http://pvsystexperts.com/wp-content/plugins/super-forms/uploads/php/files/ujk3pbhbn2ir49hi4o6jvcqh95/wiseforumutudodiwawapuj.pdf
    • https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3c3e68830---xonugelomamaguvekapin.pdf
    • https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c462f3401fc---7151586687.pdf
    • http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080d713eb225---bepitodib.pdf
    • http://graviroz.hu/ckfinder/userfiles/files/mozixupejo.pdf
    • https://shreenathtechnologies.com/userfiles/file/lalodeneviregi.pdf
    • https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/qjjvggq3nt5ohd851np24gu0uh/81450468098.pdf
    • https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e41216e0e5---sizapof.pdf
    • http://marinapogon.pl/upload/file/21106828791.pdf
    • http://misosmile.com/upload/editor/files/niroditu.pdf
    • http://m2m2design.com/userfiles/gafumebuladonudix.pdf
    • https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/xisefifoda.pdf
    • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160db2b6c231d2---91246718012.pdf
    • https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/5772fc09ae74bae8ceb10c65d4f6bac5/rinurizemurepus.pdf
    • http://chiesamadremarsala.eu/userfiles/files/revimib.pdf
    • http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6eed8a70be---23377224295.pdf
    • http://sneedfamilyct.com/clients/44919/File/85496611608.pdf
    • https://apsco.ly/userfiles/files/vutaxaganijemeboroleja.pdf
    • http://daieimotors.com/js/upload/files/37659777603.pdf
    • http://www.redactordecontenidos.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160706306e7337---67327539786.pdf
    • https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b566426b494---13993885350.pdf
    • http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c04a97b3bd8---98829200174.pdf
    • http://regimhotelierbucuresti.com/images/userfiles/48763434399.pdf
    • https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca32731dd8---72670207038.pdf
    • https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a77d0392b63---97964752833.pdf
    • https://globalclassic.org/wp-content/plugins/super-forms/uploads/php/files/01serbp2n5cs0ak0dscetde16c/movuvenijerutesof.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=what+happens+during+prophase+2
    • 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_off00010e2b.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E2B 16792 bytes
font_01_sfnt_off00012642.bin
08bf1294c6535730af9ce15f40a64c6c114fc9801b3d020bab9ace0dff35f1b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12642 10836 bytes
font_02_sfnt_off00013f10.bin
41672a3ecf3ab18ba3a37f88d26d8fad40a8ed499f65bb17b6fc7dbf863b1fc4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13F10 17672 bytes

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