Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5b2690948da4655…

MALICIOUS

PDF

66.3 KB Created: 2021-02-08 18:31:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 84b0b329daa2d0483cff2d1448e71a2f SHA-1: 2c1cb055a5cd945aed0e649cf79e18836c3688f0 SHA-256: e5b2690948da4655eb679de98d51b61415907e3ef7ba9fde8252f351a78e4b8b
164 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with a critical heuristic identifying it as a link farm. The document body, though heavily obfuscated, appears to be a lure for a movie download, suggesting a phishing or malware distribution attempt. The presence of ClamAV detection and a high ML classifier score further supports its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://seumenha.ru/aws?utm_term=abhimanyudu+full+movie++telugu+hd PDF link annotation
    • http://kraftmann.su/govatakofunilifisoseximumhf148.pdfIn PDF document text
    • https://cdn.sqhk.co/rijakobebux/QjdQhg2/nalutelotujejirukusupo.pdfIn PDF document text
    • https://nopolojeg.weebly.com/uploads/1/3/5/3/135349815/sixadefuna-kutikezabeka-jefasabup.pdfIn PDF document text
    • http://devgm.design/86816107640pecgi.pdfIn PDF document text
    • http://sizelumon.22web.org/10th_result_2018_maharashtra_board_date_sheet.pdfIn PDF document text
    • https://tavefagizukog.weebly.com/uploads/1/3/0/7/130775361/tufiwezarafafaz.pdfIn PDF document text
    • http://my-credit.info/sadelakepibaborwtv9p.pdfIn PDF document text
    • https://vokedovewugom.weebly.com/uploads/1/3/5/3/135349322/3973620.pdfIn PDF document text
    • https://cdn.sqhk.co/pedagukar/jgcCWLW/24062019070.pdfIn PDF document text
    • https://cdn.sqhk.co/kapapomabu/OojgJI4/36782132750.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rebokomixuxoj.epizy.com/windows_10_iso_file_free.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/74498032264.pdfIn PDF document text
    • https://s3.amazonaws.com/tigewibejageju/92387719344.pdfIn PDF document text
    • http://wojobawezelo.rf.gd/fujexinokibe.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/19811495829.pdfIn PDF document text
    • http://jobifizokugo.rf.gd/52099867746.pdfIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/40223648010.pdfIn PDF document text
    • https://s3.amazonaws.com/mixanaz/80406953909.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c4d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4D0 5340 bytes
SHA-256: aa4c94e08bbaba6a1dbc66952420145bce57b195f5664727d6904b52f89f058e
font_01_sfnt_off0000d6e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6E8 10820 bytes
SHA-256: a5d035aec6dbdfec42095fd75e632cee90b750ba3570750efc8f44fe4a3fb092

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