Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9214633412a0e9d…

MALICIOUS

PDF

80.9 KB Created: 2021-02-04 07:58:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 82b46808c11def2feed6d29b5c0421bb SHA-1: 64b8839fc5583b8765f1ad352dab60b5107deca1 SHA-256: d9214633412a0e9d9974b2757e98039e550e807f8fe1385fc1399eabfdab00bc
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for a phishing trojan. It contains a large number of external links, many pointing to other PDF files, suggesting a link farm or SEO manipulation tactic. One of the embedded URIs, 'https://leonvi.ru/wb?keyword=coconut%20dehusking%20machine%20report%20pdf', is likely part of this scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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/wb?keyword=coconut%20dehusking%20machine%20report%20pdf PDF link annotation
    • http://vknart.xyz/ielts_placement_test3g3qg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416496/normal_5fd3cef8b2fea.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374175/normal_60049e185a841.pdfIn PDF document text
    • http://becloud.website/43887045147g2wki.pdfIn PDF document text
    • http://4gusevshop.space/fasegibumabinilibak499a0.pdfIn PDF document text
    • https://nonaparipito.weebly.com/uploads/1/3/4/2/134265999/gewaj.pdfIn PDF document text
    • http://titanovyi-filtr.ru/yandere_sim_download_apkaylex.pdfIn PDF document text
    • https://doxuvufunufake.weebly.com/uploads/1/3/0/8/130874670/0a93d1e21.pdfIn PDF document text
    • https://rogejizerabori.weebly.com/uploads/1/3/4/7/134763318/2bd98e7af72.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/pavujiniz/normal_levels_of_coliform_in_water.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/62982457907.pdfIn PDF document text
    • https://s3.amazonaws.com/dazovosugev/38993407784.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/63226338575.pdfIn PDF document text
    • https://s3.amazonaws.com/susonanezaj/sims_4_vampire_cheats_carls_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/pebix.pdfIn PDF document text
    • https://s3.amazonaws.com/firigugixujotov/bagofirulo.pdfIn PDF document text
    • https://s3.amazonaws.com/wizedumi/15297482826.pdfIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/61236931365.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
    • 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_off0000ea65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA65 5508 bytes
SHA-256: 630a2484d02b3f68d465b5751e97bf9163f0725fc5ec1b2c642ceacc4a0c4279
font_01_sfnt_off0000fcf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCF1 10572 bytes
SHA-256: b609d8200c73ada1082088dc5c0ef45a6b3f66cafc2509f6494a8cf899e3a51c
font_02_sfnt_off00012153.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12153 16068 bytes
SHA-256: ddba3217f58172b9153fa2e17a6755d454371157efde6935f0723efb148e6ff1

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