Malicious PDF — malware analysis report

Static analysis result for SHA-256 e30eb7997398a626…

MALICIOUS

PDF

81.9 KB Created: 2021-09-11 07:41:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 450031b1f6213bf25c8c5b31465c7095 SHA-1: 7d08bfa1ac95c6120204998765cf7a58402f4e1e SHA-256: e30eb7997398a626ebe40c574de0acf4858e33e30eda74c47994c6987ec5c93a
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links pointing to various domains, many of which are identified as link farms on disposable or compromised hosting. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to malicious sites, potentially for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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 https://drivetripper.com/userfiles2020/files/rosovefidawag.pdf In PDF document text
    • http://podhoru.cz/userfiles/file/razar.pdfIn PDF document text
    • http://www.chatanakonci.cz/userfiles/file/22189691739.pdfIn PDF document text
    • http://vakoplus.cz/klienti/devel/sneznerolby.cz/ckfinder/userfiles/files/sowisibewamoxuratagis.pdfIn PDF document text
    • http://xn--12cmi2byac9cdhd0hra6d7bxkwbgj1gch.com/user_img/files/75813119271.pdfIn PDF document text
    • http://manpukulivermore.com/uploads/files/4269237789.pdfIn PDF document text
    • http://ks4073.com/file_media/file_image/file/90852710144.pdfIn PDF document text
    • http://edu-soft.ru/site/htmlimages/file/92554541831.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138e68850d68---niwodinapurudorajofadoje.pdfIn PDF document text
    • http://mega-treid.com/userfiles/files/86941548189.pdfIn PDF document text
    • http://nature-revive.org/files/file/bitekalefozitag.pdfIn PDF document text
    • http://brucemayrockinstitute.com/assets/ckfinder/core/connector/php/uploads/files/xatapukuwakijinuvo.pdfIn PDF document text
    • https://belitour.ir/basefile/belitourir/files/dezus.pdfIn PDF document text
    • http://kbcsisa.com/upload/fckeditor/file/84238758737.pdfIn PDF document text
    • http://gzcil.com/uploadfile/files/35599934725.pdfIn PDF document text
    • https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130cb7693bc1---bewisaf.pdfIn PDF document text
    • http://nzozkrowodrza.pl/uploads/editor/file/28678093001.pdfIn PDF document text
    • https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/lrl8brmpaq33op6abvdjdkickq/33684324928.pdfIn PDF document text
    • http://joy05.com/_UploadFile/Images/file/2340301788.pdfIn PDF document text
    • http://pathtojanna.com/userfiles/files/12776872407.pdfIn PDF document text
    • http://fuguchair.com/upfolder/e/files/20210903142719.pdfIn PDF document text
    • http://lpkgoodframeupvc.com/userfiles/files/lusasakoj.pdfIn PDF document text
    • http://gaziogluenerji.com/images_upload/files/55473520086.pdfIn PDF document text
    • https://springkasteelhuren.be/userfiles/file/19782240563.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=crazy+rich+asian+full+movie+eng+subPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7BB 11196 bytes
SHA-256: 3f8bcf785059ce41ba71df11bad3fe54dfc1bd2c683f987ff6a476d3e8a07c8f
font_01_sfnt_off0000f1d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1D4 18396 bytes
SHA-256: 8b7213f3c11c077e876c436aff3086cfb024a41a611c98c339d338a04ddc71b5
font_02_sfnt_off0001223a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1223A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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