Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca64541b417d74d0…

MALICIOUS

PDF

77.1 KB Created: 2021-03-20 10:05:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 7cebb22df2982e7549ab705a2ba5edd0 SHA-1: 8ee9462ca935960d51ee0fa526742b2fba1b8ad2 SHA-256: ca64541b417d74d0e96591f14e21d582401e632d44c7039b06af2f1384814305
126 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains numerous external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The presence of 'Chase order currency' in the document body, combined with the external URLs, points towards a potential financial scam or phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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://soxebez.ru/wix?keyword=chase+order+currency PDF link annotation
    • https://zozizifubigidoz.weebly.com/uploads/1/3/1/4/131409074/04c076b0883.pdfIn PDF document text
    • https://cdn.sqhk.co/vamosopon/mJiffl0/dameluxazomutopejesipevim.pdfIn PDF document text
    • http://xejitifuwoligaf.mypressonline.com/66477591813.pdfIn PDF document text
    • http://baxijemapuzoxu.22web.org/disney_world_fireworks_time_2020.pdfIn PDF document text
    • https://tizezesi.weebly.com/uploads/1/3/4/0/134041120/5609508.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477409/normal_5ff8bb9653737.pdfIn PDF document text
    • http://kotudekudoges.getenjoyment.net/conflict_resolution_worksheets_for_middle_school.pdfIn PDF document text
    • https://cdn.sqhk.co/sezunofubuzi/Uhajijf/acoustic_220_bass_head_manual.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447253/normal_5fe917b23c5a9.pdfIn PDF document text
    • http://toxipoxekej.medianewsonline.com/segmentation_targeting_and_positioning_strategies.pdfIn PDF document text
    • http://tepifugamokeg.medianewsonline.com/jajaturitej.pdfIn PDF document text
    • https://polabobaxadujo.weebly.com/uploads/1/3/4/7/134775235/xegubi-wewujetibux-simiv-gukododizad.pdfIn PDF document text
    • https://dijekoko.weebly.com/uploads/1/3/5/3/135315120/pixogiwope-magunofawosu-vojaminerovak.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366024/normal_603eda0418da7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458144/normal_6023972d17f3c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390069/normal_603f06f510c41.pdfIn PDF document text
    • https://vijizonumek.weebly.com/uploads/1/3/6/0/136034009/1942022.pdfIn PDF document text
    • http://xamoxipuwizutux.scienceontheweb.net/16555393114.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kubowulurarekij.myartsonline.com/thomas_calculus_11th_edition_key_book_free_download.pdfIn PDF document text
    • http://dulaxidej.epizy.com/saazish_film_song.pdfIn PDF document text
    • http://bexukavibume.myartsonline.com/jokamogazowegosafit.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_off0000ef5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF5F 5004 bytes
SHA-256: 45b0bb2b91c33b6b4438e56eeaf7d8ea87146e495cdfadc4b55ab9872e5430c1
font_01_sfnt_off0001005c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1005C 11436 bytes
SHA-256: 183d5388a5e5af3ceef2a1a32ec3645b6bb4d86d15cdf82da9e52ddf322fb3ba

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