Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd7d7030e0111a87…

MALICIOUS

PDF

69.6 KB Created: 2021-09-29 05:29:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-31
MD5: 201faaa5350cc099a3be9517a2272845 SHA-1: 65bd6e67e152591405f6fbc8180118ecfcb8010a SHA-256: dd7d7030e0111a87ad37d1b7f7849b78272115552f5d3269c7c8553babc34dd8
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous external URIs, including one that appears to be a lure for a game download, suggesting a social engineering tactic to trick users into downloading further malware. The presence of embedded JavaScript, though not fully analyzed due to obfuscation, likely contributes to the malicious functionality.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://nomylo.ru/uplcv?utm_term=pokemon+game+let%27s+go+pikachu+download+apk PDF link annotation
    • http://teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/50550682821.pdfIn PDF document text
    • http://reicar.dk/userfiles/file/73829655286.pdfIn PDF document text
    • http://www.polni.si/Images/files/sufekakexojenufapezofe.pdfIn PDF document text
    • http://minhtoangalaxyhotel.vn/app/webroot/files/ckfinder/files/bawibexatiwowidirovedife.pdfIn PDF document text
    • http://www.jindatunnel.com/up_files/file/85599661187.pdfIn PDF document text
    • https://marathonblainville.com/userfiles/files/64846890113.pdfIn PDF document text
    • https://akconta.com/uploads/files/bejomuvulaxexufarab.pdfIn PDF document text
    • http://xn--o39a91gvwm83kbsn.net/FileData/ckfinder/files/20210915_70731759CEFA76A8.pdfIn PDF document text
    • http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613ebf42bd2e7---nevudokijabuwodun.pdfIn PDF document text
    • https://blsautomation.com/ckfinder/userfiles/files/3092363614.pdfIn PDF document text
    • http://studioindelicato.com/userfiles/files/66772088814.pdfIn PDF document text
    • https://cortopolis.ar/userfiles/file/83813436813.pdfIn PDF document text
    • http://www.dawnrotaryclub.tw/UserFiles/files/direxavafanu.pdfIn PDF document text
    • http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/o7phj56hvtqntdqfjbffggruj1/12254148447.pdfIn PDF document text
    • https://aildf.in/userfiles/file/padakuvevevi.pdfIn PDF document text
    • http://lishasurgical.in/ckeditor/ckfinder/userfiles/files/30038721886.pdfIn PDF document text
    • http://wordtmann.beckbauer.eu/ckfinder/userfiles/files/mafaragimubibosusiwoj.pdfIn PDF document text
    • http://dorp.pl/userfiles/files/4857175601.pdfIn PDF document text
    • http://pcccphucvinh.com/upload/files/fezujerifufesekelokori.pdfIn PDF document text
    • http://www.deewanalarab.com/up_imgs/resefiva.pdfIn PDF document text
    • https://knoxvilleremembers.com/media/riremov.pdfIn PDF document text
    • https://vnjhanoi.com/upload/files/xukakarozisasoviwukabag.pdfIn PDF document text
    • https://vaynhanh365.net/contents/files/pavuzatujabuxetevo.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_off0000ae2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE2B 15920 bytes
SHA-256: 35f312db7526f875841e8cc386c3361e1a305a8f651b723f0266590eb17f0a1c
font_01_sfnt_off0000d6cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6CD 11172 bytes
SHA-256: d8a433409c39ff483b767cb78252863f9e18f3b03170cdf0af52643f0edc172f
font_02_sfnt_off0000f0af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0AF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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