Malicious PDF — malware analysis report

Static analysis result for SHA-256 1acd1eeb3304e434…

MALICIOUS

PDF

79.0 KB Created: 2021-03-10 09:26:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 4cf6ce5f069c13b2bfe03a2d649953e6 SHA-1: d97e2695504e2f462d89cd3b4ef87dee91fedda1 SHA-256: 1acd1eeb3304e434bd03831fb7ab6ebef9ae437f2b64a37cdd2fcf232abdd1c0
126 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high probability of malicious intent. It contains numerous embedded URLs, with one prominent URL pointing to 'soxebez.ru', suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text related to 'company logo sample pdf' and 'wkhtmltopdf', likely serving as a lure. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly suggest it's a malicious document, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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/award?keyword=company+logo+sample+pdf PDF link annotation
    • https://cdn.sqhk.co/govazilose/hhbK4hj/sutofixadasukikeji.pdfIn PDF document text
    • http://tujemet.scienceontheweb.net/acidosis_lactica.pdfIn PDF document text
    • https://cdn.sqhk.co/miwavilusaji/jgiZi2E/azote_formule_chimique.pdfIn PDF document text
    • http://tepugorotewole.medianewsonline.com/diablo_3_switch_2_player_one_console.pdfIn PDF document text
    • https://cdn.sqhk.co/bosamame/ggpghoo/mibanusimev.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454694/normal_60350045c442a.pdfIn PDF document text
    • http://znalomstvavip.site/configurazione_posta_aruba_pec_su_android71wgl.pdfIn PDF document text
    • https://cdn.sqhk.co/denidugabuni/ijifjfk/wekazidujezo.pdfIn PDF document text
    • http://ottics.ru/9231976855869gzn.pdfIn PDF document text
    • https://peledinupuw.weebly.com/uploads/1/3/4/5/134508745/temex.pdfIn PDF document text
    • https://vedewoxid.weebly.com/uploads/1/3/0/7/130738666/rizefosoru.pdfIn PDF document text
    • http://soinjaga.ru/taco_bell_al_fresco_nutritionotqh8.pdfIn PDF document text
    • http://vannabanyavsedela.xyz/41277504480787er.pdfIn PDF document text
    • https://daxapiruxibi.weebly.com/uploads/1/3/2/7/132712323/bf37f.pdfIn PDF document text
    • https://foravidamekog.weebly.com/uploads/1/3/2/3/132303307/3c6f3e6405b7825.pdfIn PDF document text
    • https://dofikusoru.weebly.com/uploads/1/3/4/4/134472045/kazaxan_samebenulupa_fopizupud_dajitabowet.pdfIn PDF document text
    • http://jiviruke.iblogger.org/kizubowatexuwuxawelezem.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393637/normal_60142ce77e423.pdfIn PDF document text
    • http://milanomoda-italy.site/ged_practice_test_math_freenxxh9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452861/normal_601b63c6ba260.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bajupigirosinaf.atwebpages.com/gita_chapter_2_verse_41.pdfIn PDF document text
    • http://koraxirimaxodet.epizy.com/44072449441.pdfIn PDF document text
    • http://magegefopo.atwebpages.com/26422597153.pdfIn PDF document text
    • http://zojusis.rf.gd/96321858793.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_off0000f83b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF83B 5272 bytes
SHA-256: b6630aafca9dea4bfa038a8e48022626e07c6a55faf214a7ef1c337bd7d9bcf2
font_01_sfnt_off00010a20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A20 10664 bytes
SHA-256: ca703608471d4f925fe39bd4c74a39e3390fdb1ad7c9738b7619c690c35c77ae

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