Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e101a819897ee4a…

MALICIOUS

PDF

85.6 KB Created: 2021-10-05 00:13:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 9e56311e0da794e82f3fa51d25781882 SHA-1: 01878c96bd490433587af25c41a259197c452695 SHA-256: 7e101a819897ee4a37cfdd73f57de7cea06bb5d3f0571830a3385783fe6ed186
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous external URIs, indicating an attempt to redirect the user to malicious sites. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. The presence of embedded JavaScript points to T1059.007, and the overall delivery mechanism is consistent with T1566.001.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://archism.ru/uplcv?utm_term=empires+and+puzzles+holy PDF link annotation
    • http://ageddfjtj.pretty-match.com/upload/files/rebavujafomok.pdfIn PDF document text
    • https://gallerylingard.com/uploads/file/75708810758.pdfIn PDF document text
    • http://doggystylzgrooming.com/admin/photos/file/18459675372.pdfIn PDF document text
    • https://boulou.mrjean.fr/userfiles/file/41226866248.pdfIn PDF document text
    • http://grandrosso.com/js/upload/files/44356509927.pdfIn PDF document text
    • https://cplastik.net/data/cms/file/wakivubomujurider.pdfIn PDF document text
    • http://fc-junajted.com/upload/datoteke/fosebevos.pdfIn PDF document text
    • http://www.anglometais.com.br/adm/Editor/ckfinder/userfiles/files/6299764164.pdfIn PDF document text
    • http://alpanelektrik.com/depo/sayfaresim/file/75267436394.pdfIn PDF document text
    • https://senfina.top/uploads/files/43880961502.pdfIn PDF document text
    • https://vanvoorst.info/uploaded/file/zimivepopur.pdfIn PDF document text
    • https://mcq-exambd.com/app/webroot/ckfinder/userfiles/files/25522112852.pdfIn PDF document text
    • https://cmflower-kkc.com/ckfinder/userfiles/files/vojubulateniwojo.pdfIn PDF document text
    • https://borgopitti.it/userfiles/file/52750275161.pdfIn PDF document text
    • https://kingcarmotorista.net/uploads/files/6649718930.pdfIn PDF document text
    • http://stringquartet.biz/web/images/fck/file/zekawamitiputula.pdfIn PDF document text
    • https://rumusjitu.com/contents/files/ruzofinemosukaxus.pdfIn PDF document text
    • http://cobe-ing.it/userfiles/files/22534425132.pdfIn PDF document text
    • https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/d50ef5c619d81f643ea07e4a0575cb37/60966576015.pdfIn PDF document text
    • http://vicc.huh.hu/UserFiles/File/71401903758.pdfIn PDF document text
    • http://mn-print.ru/ckfinder/userfiles/files/69193959022.pdfIn PDF document text
    • http://marktoby.com/akram/know_news/admin/userfiles/file/xoduxiwel.pdfIn PDF document text
    • http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/1615ad082ee54e---34308796466.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_off0000e474.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE474 19816 bytes
SHA-256: ce401c5edefa0a7444e2150c38e348b157cf69a06ed5fca54e96442eecce7cdd
font_01_sfnt_off000117bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117BF 10816 bytes
SHA-256: 3205616243473602ab6968e649955b0deb85917cdfdbeab9e8e59e6f7904b7d0
font_02_sfnt_off0001307a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1307A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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