Malicious PDF — malware analysis report

Static analysis result for SHA-256 ead69ddad452f0cd…

MALICIOUS

PDF

78.8 KB Created: 2021-03-21 20:41:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8abfd62126b2f4aeafc868130cb058ee SHA-1: df91eae61e8fca4c94ebb6c5efcfc7815ea0a67e SHA-256: ead69ddad452f0cd8e285368a6aeaf0470ba60ac9ae07b3a306008f50422c972
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a malicious domain, disguised with a seemingly innocuous topic. ClamAV and ML classifiers strongly indicate maliciousness, consistent with a phishing or malware distribution attempt. The document body, though heavily obfuscated, appears to contain text related to the lure, and the embedded URL is the primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ponafet.ru/strik?utm_term=how+to+season+an+old+rusty+cast+iron+skillet
    • http://logunej.iblogger.org/pci_compliance_policy_templates_free.pdf
    • http://rarafon.iblogger.org/android_studio_arrayadapter_layout.pdf
    • https://ruwagifixub.weebly.com/uploads/1/3/4/0/134013037/bonadubal_siwudo_polilatevixid_wizowodifoluv.pdf
    • https://sibomimotilelib.weebly.com/uploads/1/3/4/2/134235458/14a084.pdf
    • https://niremavepuna.weebly.com/uploads/1/3/4/6/134625676/degumiduf.pdf
    • https://tadilagene.weebly.com/uploads/1/3/1/3/131381422/kokosafonidefozan.pdf
    • http://micrometer25bill.site/mako_mermaids_cast_membersmb63m.pdf
    • http://bio-ita.fun/jotawipugesenufo99mkd.pdf
    • http://suxoxaxowigab.scienceontheweb.net/24923201271.pdf
    • http://gazajujana.mygamesonline.org/difference_between_monocot_and_dicot_plants.pdf
    • http://bibuwobu.22web.org/mikotafipelid.pdf
    • http://labifovejes.mypressonline.com/7288586375.pdf
    • https://zedurobarudavur.weebly.com/uploads/1/3/4/0/134018347/rorup.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/pilazi/hult_international_business_school_mba_fees.pdf
    • https://s3.amazonaws.com/bipepezuwed/picsay_pro_apkmania.pdf
    • http://tuwafexom.epizy.com/lovely_billie_eilish_violin_solo_sheet_music.pdf
    • https://s3.amazonaws.com/jiwisi/29537958238.pdf
    • http://bidasumibave.epizy.com/93059987752.pdf
    • http://vapufebifuv.epizy.com/resistance_band_exercises_wall_chart.pdf
    • http://zevusup.atwebpages.com/james_baldwin_go_tell_it_on_the_mountain_sparknotes.pdf
    • https://s3.amazonaws.com/gapivegek/quebec_year_end_reporting_requirements.pdf
    • http://povusesa.rf.gd/cereales_bromatologia.pdf
    • http://panexorumilogim.myartsonline.com/getujar.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f70a.bin
d600530984f75b97c2b7439c361233b4d088c63132aa96001d066b8e4fb41620		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF70A 5152 bytes
font_01_sfnt_off000108b0.bin
bfcd9f1fe8a9df676698e63e6e6e927bd53d861c52aee50242841b1f31525927		 pdf-font-stream PDF embedded font (sfnt) at offset 0x108B0 10872 bytes

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