Malicious PDF — malware analysis report

Static analysis result for SHA-256 f22a2d12cf6a366e…

MALICIOUS

PDF

69.2 KB Created: 2021-02-17 15:11:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 3b14707e59b8de956ed0f5cb84368e5f SHA-1: 5a4eaf293374639efd7e6561cfad05b644b4cafc SHA-256: f22a2d12cf6a366e70bc6a2f2ccb521eeba5ede8b80aa761a60eb99ac2641991
156 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://maypoin.ru/wix?keyword=aliexpress+promo+code+april+2020 PDF link annotation
    • https://sawifotu.weebly.com/uploads/1/3/4/5/134597463/17170b3d6ef9ca0.pdfIn PDF document text
    • https://tabogivazosepa.weebly.com/uploads/1/3/1/8/131871767/vizapekuwudupak.pdfIn PDF document text
    • http://spain50off.info/safety_1st_baby_monitor_reviewl6u4q.pdfIn PDF document text
    • http://toolsbestpricemicrometer.site/hurst_review_book_answersfiprw.pdfIn PDF document text
    • http://voirly.xyz/70081231601reg1e.pdfIn PDF document text
    • https://jafelabuz.weebly.com/uploads/1/3/1/3/131398525/9136646.pdfIn PDF document text
    • http://snt-br.ru/win7_activator._exe_free7k0wx.pdfIn PDF document text
    • http://tk-time.site/vebufifuluxapitatadet6upl1.pdfIn PDF document text
    • https://kokubexajaluk.weebly.com/uploads/1/3/2/6/132681668/bapozapipop-diwadem.pdfIn PDF document text
    • https://vadutebo.weebly.com/uploads/1/3/4/8/134889136/rudoba-deloj-vidoki-wofosawifigeb.pdfIn PDF document text
    • https://zesalogerevuj.weebly.com/uploads/1/3/4/6/134684883/6f50b6fc267.pdfIn PDF document text
    • https://lideteli.weebly.com/uploads/1/3/0/7/130775407/5106710.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/janofubalofafer.pdfIn PDF document text
    • https://s3.amazonaws.com/fevobelijogal/crystal_report_viewer_control_9.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/gofepadifaxasuza.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/63308207795.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_off0000d20b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD20B 5548 bytes
SHA-256: 14e78e348221c992d5f4e08f2d6c6e6c6e086be44103776bfc00dc2bb3f629f1
font_01_sfnt_off0000e4d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D3 10256 bytes
SHA-256: 078c4c55cffb497b0d5613346d494a7e2662ae229a0b01f71fd29f062400aabd

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