Malicious PDF — malware analysis report

Static analysis result for SHA-256 64e8948f31f538ba…

MALICIOUS

PDF

80.2 KB Created: 2021-04-14 19:12:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: d2d787bd5dd8e37e575193ae54d02093 SHA-1: 63b19702aba98a2d6f8a27ad4243bfe7b419a823 SHA-256: 64e8948f31f538ba6347d55d3f47cbb5efe38ed62cd4f044f85aa4aca56ae119
126 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to disposable hosting or link farms, suggesting an attempt to redirect users to malicious content. The document body, though heavily obfuscated, contains references to 'Bible commentary', likely a lure to disguise the malicious intent.

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://baarspo.ru/strik?utm_term=bible+commentary+philippians+4 PDF link annotation
    • http://kofupum.mygamesonline.org/candidiasis_en_hombres_tratamiento.pdfIn PDF document text
    • https://lanujedajifita.weebly.com/uploads/1/3/1/3/131382078/gulowukevedos.pdfIn PDF document text
    • https://rowusebejaron.weebly.com/uploads/1/3/1/6/131637242/gatudegomax-tatipepubopuzu.pdfIn PDF document text
    • https://nukimaxirob.weebly.com/uploads/1/3/0/7/130776041/pivunaj-zugaperivusage-tuwos-fotaxalirogubaw.pdfIn PDF document text
    • http://jufidozotazi.66ghz.com/dainik_asom_assamese_newspaper_download.pdfIn PDF document text
    • http://rutefozur.22web.org/dabugukubeze.pdfIn PDF document text
    • http://zibitivijog.22web.org/4gl_language.pdfIn PDF document text
    • http://bachanalytics.com/11383749496z1kzp.pdfIn PDF document text
    • http://amandeepsadyora.com/80410106963j479e.pdfIn PDF document text
    • http://fuwajigub.iblogger.org/como_aprender_ingles.pdfIn PDF document text
    • http://zatoboyvibor.fun/40308958033do39r.pdfIn PDF document text
    • http://hr-insider.com/256614155344chkb.pdfIn PDF document text
    • http://itdiscount.pro/information_security_analyst_roles_and_responsibilitiesxnzau.pdfIn PDF document text
    • http://jakuzilikigo.iblogger.org/50259778417.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tudozujuxijoz.rf.gd/nour_al_bayan.pdfIn PDF document text
    • http://popeladidet.epizy.com/nixunefezoronevogi.pdfIn PDF document text
    • http://vokesakogo.onlinewebshop.net/83040619337.pdfIn PDF document text
    • http://rikuworubit.myartsonline.com/65554698410.pdfIn PDF document text
    • http://katetagozu.epizy.com/nikekof.pdfIn PDF document text
    • http://futuwerelak.epizy.com/formal_email_writing_exercises.pdfIn PDF document text
    • http://silijufomil.epizy.com/how_to_charge_razor_e200.pdfIn PDF document text
    • http://kajurilin.rf.gd/ultimate_ninja_blazing_jp.pdfIn PDF document text
    • http://xotesevuves.epizy.com/miwumurusolavajiju.pdfIn PDF document text
    • http://luzoxone.epizy.com/jenn_air_double_oven_self_cleaning_instructions.pdfIn PDF document text
    • http://ribinelawado.epizy.com/ethical_principles_in_qualitative_research.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_off0000fa30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA30 5552 bytes
SHA-256: 3f667275df6d5862401718bdebeadeaad0b223b52d119e9363225e90921253ba
font_01_sfnt_off00010cee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CEE 11428 bytes
SHA-256: e2b5756793b9f4bee645f12a75d2f84b010abc27e09814f5fc7897faeb5a5e38

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