Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e2eb47263debe26…

MALICIOUS

PDF

69.9 KB Created: 2021-09-21 06:47:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-21
MD5: 074169c16f11627026d7a92b395f2df4 SHA-1: d8192e78c440bf7ed4991e7d890be3449aad276e SHA-256: 2e2eb47263debe26fda03aa6d9a0ec301f0511c6dbe06227d814b028c7191158
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many hosted on disposable domains or compromised CMS uploads, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of techniques used to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8758

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://allytemp.ru/uplcv?utm_term=dragon+ball+super+broly+123movies PDF link annotation
    • http://www.americaninvest.net/upls/files/13281986795.pdfIn PDF document text
    • http://epicridesnepal.com/files/bigakokofuvimisad.pdfIn PDF document text
    • https://lockerova.eu/admin/upload/documents/8631856986.pdfIn PDF document text
    • http://fecoil.com/userfiles/file/pesaxoduribozuboraxobamup.pdfIn PDF document text
    • http://mynotary.ca/sites/all/sites/mynotary.ca/files/wawutogegev.pdfIn PDF document text
    • http://hotstamping.pl/files/file/61835233249.pdfIn PDF document text
    • https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/c4b2866a9ccf801656abae754a32e1b7/kilalanibubuze.pdfIn PDF document text
    • http://sitoad.com/bbqjoekey/files/202109050105231852.pdfIn PDF document text
    • https://open-call.fr/uploaded/files/baxuviniwedimode.pdfIn PDF document text
    • http://happinessgown.com/upload/users/files/lebunetabopubapixisum.pdfIn PDF document text
    • http://tonioloclaudio.it/userfiles/files/tupagivelibipo.pdfIn PDF document text
    • http://kolkandkolkdesign.com/site/data/ws/files/vexosukuwexekibideli.pdfIn PDF document text
    • http://drukarnia-warszawa.pl/pliki/file/razujiwigurawus.pdfIn PDF document text
    • http://praguynakorn.com/praguynakorn/picture/datapro/files/38120302329.pdfIn PDF document text
    • https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/4a3cff25396c4281b4a92a351f181623/tutajozabusi.pdfIn PDF document text
    • http://billagelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xiwiguxowetoxuboxabu.pdfIn PDF document text
    • http://demo-enriquemora.shopcloud.es/ckfinder/userfiles/files/55758450301.pdfIn PDF document text
    • http://auto-rad.pl/userfiles/file/vaxopesogumepuwejobup.pdfIn PDF document text
    • https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/1612f26ca75549---64561233593.pdfIn PDF document text
    • http://cungcapluonech.com/upload/files/dutorutulor.pdfIn PDF document text
    • https://norservis.com/files/files/duromedovutotosowabal.pdfIn PDF document text
    • http://citysoupsbellevue.com/uploads/files/39442483303.pdfIn PDF document text
    • http://thepokeluau.com/uploads/files/tujukewifisukawiwiji.pdfIn PDF document text
    • https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/d85f1343b9afe31d186d64d6def20e62/tivevatafere.pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ccac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCAC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e4be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4BE 19556 bytes
SHA-256: d0a8d5768daa5e812b66629226e0259ccc20d4f2e8cf363c7781abd997454eb1