Malicious PDF — malware analysis report

Static analysis result for SHA-256 f180299c6fd7a303…

MALICIOUS

PDF

93.1 KB Created: 2021-02-22 21:40:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 407774000d5eb083a5a651df93981b1e SHA-1: 287b6ff764621ccaf7b728a8df82ad3077135f1c SHA-256: f180299c6fd7a3039e76a42d0ab423af7587a9fa7bfec780001e76262aac57ef
214 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, many of which are hosted on link farms, suggesting a phishing or malicious redirection attempt. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM firings strongly indicate that the document is designed to lead users to malicious infrastructure. While no scripts were explicitly extracted, the nature of the embedded links and the ML classification point towards a malicious intent, likely to deliver a secondary payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=alchemist+level+guide+ffxiv In PDF document text
    • https://relakurofur.weebly.com/uploads/1/3/4/8/134872141/lidemam.pdfIn PDF document text
    • https://wevuviwujito.weebly.com/uploads/1/3/1/6/131636984/1674b.pdfIn PDF document text
    • https://lalusilimedam.weebly.com/uploads/1/3/0/9/130969483/dafodup.pdfIn PDF document text
    • https://puwaxitakobesod.weebly.com/uploads/1/3/4/1/134109073/9492480.pdfIn PDF document text
    • http://shop-kid-toys.online/daluwazapanrhvri.pdfIn PDF document text
    • http://presente-top.store/les_choristes_piano_sheet_musicyjiac.pdfIn PDF document text
    • http://raffle.website/what_sauce_is_on_burger_king_breakfast_burritou7emf.pdfIn PDF document text
    • https://cdn.sqhk.co/vavewiminiv/6jhghjj/break_it_to_me_gently_angela_bofill.pdfIn PDF document text
    • https://davabodijesofid.weebly.com/uploads/1/3/4/4/134474123/fexixur.pdfIn PDF document text
    • https://cdn.sqhk.co/wemitupu/JigIZEM/77543161426.pdfIn PDF document text
    • http://hookup153.space/kilibesijewile26sf.pdfIn PDF document text
    • https://raguwamirib.weebly.com/uploads/1/3/4/6/134630778/6942084.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/pibajuwi/74893115456.pdfIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/integrated_balance_sheet_management_solutions.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/canon_drivers_mx492.pdfIn PDF document text
    • https://s3.amazonaws.com/rekawexuretowo/44952739306.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
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00012da8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x12DA8 23216 bytes
SHA-256: 3f78897e7e31acb1ac1e9265a0f0ec5b19e6ee1b8811d14a641fc9ab6fcd8fb0
font_00_sfnt_off0000f815.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF815 4912 bytes
SHA-256: e5eeb8a15414d0edd6ae06001f1b6fa8280abe63ef86e31e8a55566565dfff88
font_01_sfnt_off000108dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108DC 10784 bytes
SHA-256: 77d79213a9a4bb4d878cc13ea74f124b568254c8f10dd1732001e91ce15d9110
font_03_sfnt_off00015692.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15692 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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