Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c37200f4c8584b8…

MALICIOUS

PDF

76.1 KB Created: 2021-03-30 10:03:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 3f7e2881bcb1e505fca7c55506da9116 SHA-1: 15a75763b7122347c988da47601719ae9777ea32 SHA-256: 5c37200f4c8584b82cc6851bfed34cc7e22afed53da4e89de23166d9120bede2
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://botokaw.ru/strik?utm_term=5e+tomb+of+annihilation+languages PDF link annotation
    • http://wozuxel.getenjoyment.net/cae_gold_plus_exam_maximiser_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/zulatobi/eibhgMs/snow_white_witch_name.pdfIn PDF document text
    • http://wubowobipevoto.mywebcommunity.org/11357100439.pdfIn PDF document text
    • http://ritixibetono.mygamesonline.org/almanac_2020_download.pdfIn PDF document text
    • http://tututot.mygamesonline.org/gaxofuxegulitefikolin.pdfIn PDF document text
    • http://leledup.mypressonline.com/ausencia_definicion.pdfIn PDF document text
    • http://xalenupom.getenjoyment.net/17423728567.pdfIn PDF document text
    • https://cdn.sqhk.co/gimanoretev/dOSihgg/transformers_earth_wars_wiki.pdfIn PDF document text
    • https://cdn.sqhk.co/duxadikoti/ha3GIhO/how_to_update_software_on_ipad_mini_3.pdfIn PDF document text
    • https://cdn.sqhk.co/sukijubese/E18giEm/vitijadi.pdfIn PDF document text
    • https://cdn.sqhk.co/jebanufebejo/ggegfhb/kingly_impling_hunting_guide.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/wikurixobelu/ser_bachiller_2018.pdfIn PDF document text
    • http://rogofideb.onlinewebshop.net/6759981138.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e7959b7-d321-42d9-aed4-7cfb988cd151/1995_yamaha_kodiak_400_4x4_oil_change.pdfIn PDF document text
    • https://s3.amazonaws.com/migivewuwe/nfl_fantasy_cheat_sheet_week_4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/597ee386-4aee-47e9-a5e7-9b933f80f7f4/21670011934.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6e08730-d2cc-4a0d-bdbb-b4ad5e0f0fff/resor.pdfIn PDF document text
    • http://kofepiropi.onlinewebshop.net/44374464756.pdfIn PDF document text
    • https://s3.amazonaws.com/zeworibuzoza/population_census_of_india_2001.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab960681-3ab5-4a58-81e0-25aca4eac017/40738251343.pdfIn PDF document text
    • https://s3.amazonaws.com/teximikamukubo/33702693164.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1193400c-aa92-4aab-a360-93099fe4dd6a/fifenigiraboro.pdfIn PDF document text
    • https://s3.amazonaws.com/wogikokuzotaxa/uidai_aadhar_self-_service_portal.pdfIn PDF document text
    • http://jisunopesaluzi.atwebpages.com/most_effective_call_to_action_buttons.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_off0000eaa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAA9 5256 bytes
SHA-256: f014475349fafe1aeb05b2bdb09ec01fdb3aef204b011ceb0c60a8a132abf2bd
font_01_sfnt_off0000fc6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC6A 11280 bytes
SHA-256: 073539215dafac2194e78a950be4083fa7cf39b75d91a5ad8774841d0da2a41f

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