Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e6ab69dea85912b…

MALICIOUS

PDF

90.7 KB Created: 2021-01-19 13:39:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 5caf6e1d539d7854faf1a7e0793962b1 SHA-1: d72f711301dd2bfb7cf4f03f653206a82773fbc8 SHA-256: 2e6ab69dea85912b24c554dac8291c4aa31f1864e69ec2c8e8fdd713841a1467
186 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm or SEO manipulation tactic. The embedded URLs likely serve as lures to download further malicious content or phish for information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • 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://leonvi.ru/123?utm_term=tribal+wars+2+guide+to+3000+points PDF link annotation
    • https://site-1177729.mozfiles.com/files/1177729/download_color_full_3d_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/bumigorawi/R3NhMcG/download_game_talking_tom_jetski_2_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/tefozakozup/hc0Zigi/96692525856.pdfIn PDF document text
    • https://cdn.sqhk.co/tevosenijosu/wJjc3Jh/xerukivusevanizesojis.pdfIn PDF document text
    • https://cdn.sqhk.co/datolabevev/oihieTu/29312771338.pdfIn PDF document text
    • http://sizegivip.22web.org/12706520058.pdfIn PDF document text
    • https://site-1177122.mozfiles.com/files/1177122/76787849386.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424364/normal_5f9ddbee08d66.pdfIn PDF document text
    • https://cdn.sqhk.co/noxutuvixi/hfggRgi/grow_kingdom_mod_apk_1._2._8.pdfIn PDF document text
    • https://site-1166605.mozfiles.com/files/1166605/28661578102.pdfIn PDF document text
    • https://mutuvedaluvop.weebly.com/uploads/1/3/1/8/131856278/7278449.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
    • http://lekinip.epizy.com/68471061316.pdfIn PDF document text
    • http://tujiritam.epizy.com/aws_command_line_interface.pdfIn PDF document text
    • http://gukedam.rf.gd/9287512005.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011494.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11494 5628 bytes
SHA-256: 39a0e165e551f1c7c981334ffd88a18ba0f5ae52d897cf6b924969ad90020ece
font_01_sfnt_off000127c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127C7 11888 bytes
SHA-256: a95f104f1f61ca601a3c3351ccc6c6430309cf010e02bad3eb58e9405bb83294
font_02_sfnt_off00014fa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14FA1 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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