Malicious PDF — malware analysis report

Static analysis result for SHA-256 146c72e152af5a21…

MALICIOUS

PDF

67.3 KB Created: 2021-09-25 02:02:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 708826b649b24e7ec7e59e4dc93e2f8e SHA-1: ae200c6c2593768dce63acd2f4ac6de70c817b25 SHA-256: 146c72e152af5a2115a2d8206249cc6d28f4e549bd2a55f432d7e76d6eecf59a
146 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as malicious by ML classifiers and ClamAV, exhibiting characteristics of a phishing lure. It contains an image-based screenshot designed to conceal a clickable link, a common tactic for tricking users into visiting malicious sites. The embedded URLs, such as https://drafthe.ru/uplcv?utm_term=app+like+play+store+for+pc, suggest the document is part of a campaign to redirect users to potentially harmful content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 67 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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 https://drafthe.ru/uplcv?utm_term=app+like+play+store+for+pc PDF link annotation
    • http://studiofapas.it/userfiles/files/18473720186.pdfIn PDF document text
    • https://kopari.hu/files/file/kokojirufo.pdfIn PDF document text
    • https://gesema.com/UserFiles/file/65149718984.pdfIn PDF document text
    • http://studiospazioambiente.it/userfiles/files/87617426751.pdfIn PDF document text
    • http://dotbamboo.com/file_media/file_image/file/bukerima.pdfIn PDF document text
    • http://chornakorn-packing.com/ckfinder/userfiles/files/66229230956.pdfIn PDF document text
    • https://eagleegg5k.com/ckfinder/triplebuserfiles/file/64342416620.pdfIn PDF document text
    • https://gestcargo.com/uploadfiles/file/balurixesepolajazap.pdfIn PDF document text
    • https://www.food-equipment-store.com/fckeditor/uploads/file/taminuwebo.pdfIn PDF document text
    • http://ahzycw.com/upload_fck/file/2021-9-12/20210912055028302419.pdfIn PDF document text
    • http://placc.info/up_image/48492073412.pdfIn PDF document text
    • https://djennebeads.com/nbloom/fckuploads/file/93375695560.pdfIn PDF document text
    • http://www.giuseppe.ru/ckfinder/userfiles/files/bulaperawebuwut.pdfIn PDF document text
    • http://lerucherdesanges.fr/userfiles/file/72005496739.pdfIn PDF document text
    • https://jagamimpi.net/contents/files/letemozadapufejariseze.pdfIn PDF document text
    • http://movesearchesuk.com/userfiles/file/11740816373.pdfIn PDF document text
    • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/asbjng48cb0gvnaogtpr39ur11/kefukuzepofojepevodil.pdfIn PDF document text
    • https://www.ftha.org/admin/ckfinder/userfiles/files/pamixevijinuvar.pdfIn PDF document text
    • http://kolaykanal.com/userfiles/files/40124590370.pdfIn PDF document text
    • http://thedewakohchang.com/image/upload/File/1520186315.pdfIn PDF document text
    • http://rotarylaspalmas.org/documentos/file/90933707292.pdfIn PDF document text
    • http://www.blueoak.fr/image/file/16540807554.pdfIn PDF document text
    • 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_off0000aaf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAF1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000c303.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC303 14016 bytes
SHA-256: 1248723bcb6461d3428a44b03346d70c049043702c9e495615b1016c891c66d7
font_02_sfnt_off0000e589.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE589 10556 bytes
SHA-256: b12d2234d81d25ce3d6314b20d0208eb1837d7147526fee659cf407da1e8935b

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