Malicious PDF — malware analysis report

Static analysis result for SHA-256 08d5d30f604c567e…

MALICIOUS

PDF

138.3 KB Created: 2021-07-01 09:44:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: ebbaf48b03a57a272fd0e17d870bf782 SHA-1: f19b9885da14724bf31596d86b45edc2779d3469 SHA-256: 08d5d30f604c567e71a183cbbb56140ead5db7760d2a7fe83e60bce3a990672d
196 Risk Score

Malware Insights

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

The PDF contains numerous links to compromised WordPress upload storage and disposable hosting, indicative of a link farm designed to host malicious files. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' strongly suggests the document's purpose is to trick users with fake lottery or parcel delivery scams. ClamAV also detected this file as Pdf.Phishing.Trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9913

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://emotionpicturesfestival.gr/userfiles/file/51752310199.pdf
    • http://zonweringbelgie.com/ckfinder/userfiles/files/64410300407.pdf
    • http://scoutpate.com/userfiles/file/54127796113.pdf
    • http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160afb9b94b679---7850728719.pdf
    • https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160869ea259b31---96250049731.pdf
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3b88cdb94---bugej.pdf
    • http://tahi.hu/ckfinder/userfiles/files/49058458384.pdf
    • http://digemnd.com/UserFiles/file/lobaxewowipudo.pdf
    • https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/a17c8de81444c979f25f96c71e62fc11/93831811190.pdf
    • https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/e87ifnie4abc59qffso3c3shck/65995343736.pdf
    • https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/krqfd82hpl1205v2i8es4k4fro/75809918324.pdf
    • http://stalmost.pl/userfiles/file/43374680536.pdf
    • http://aksaaydinlatma.com/img/editor/image/file/67080170865.pdf
    • http://www.gdchgs.com/admin/img/files/bevorixawanuvun.pdf
    • http://baschin-heizung.com/meineBilderAlbertGrundschule/file/miwik.pdf
    • https://baohohoanglong.com/userfiles/file/13460511294.pdf
    • http://photographybynami.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cf569cc539---nowoni.pdf
    • http://bioident.pl/photos_fck/file/gusovonakape.pdf
    • http://eviljoy.com/UserFiles/File/56358715381.pdf
    • https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/1a5954ed00de14d922eb244d7c0d217f/70947075362.pdf
    • http://teamwork-poetschke.com/ckfinder/userfiles/files/tonurovuzajodixoji.pdf
    • http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160781d8e4a649---33311492717.pdf
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/58s604e5qsvkrof5d0v4jel0c6/77291036288.pdf
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1ae52d19a0---tikonixerizafubibijofeti.pdf
    • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160728d6cb7d59---51982011186.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=twilight+breaking+dawn+part+1+full+movie+in+tamil+dubbed
    • 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_off0001b830.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x1B830 16792 bytes
font_01_sfnt_off0001d047.bin
5df71108e9931049d9bec2eaedbce5e9eb211cfc31c9b0c6cb58f3312a867fe0
pdf-font-stream PDF embedded font (sfnt) at offset 0x1D047 11276 bytes
font_02_sfnt_off0001ea39.bin
83b0cd49eac38ae13d3b3d862105e1e9e673172344e2b8ebaec0c4a36d04408a
pdf-font-stream PDF embedded font (sfnt) at offset 0x1EA39 18784 bytes