Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3a67e7c3715fa05…

MALICIOUS

PDF

77.4 KB Created: 2021-04-07 20:19:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b74df6134e4102d8ff7c98974af8c512 SHA-1: 04b845e76612d91541d9621eef7d96ee43602cf3 SHA-256: e3a67e7c3715fa05ae9b9a92440e0c77d2e1e6fcf61afcf156a15d984a871e42
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URI pointing to a suspicious domain, which is also listed as a high-risk URL. The ML classifier and ClamAV detection strongly indicate maliciousness. The document body, though truncated, includes text related to 'free riot points', suggesting a lure for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jumiwimov.ru/wix?keyword=how+to+get+free+riot+points+reddit
    • https://fefajuvojamunuj.weebly.com/uploads/1/3/4/7/134750085/batafesugazob.pdf
    • https://nasaperexi.weebly.com/uploads/1/3/5/3/135351481/jabov-visaxidas.pdf
    • http://vatetuda.scienceontheweb.net/lafudalales.pdf
    • https://kafiwixuvaso.weebly.com/uploads/1/3/0/8/130874495/robem.pdf
    • https://bomoturu.weebly.com/uploads/1/3/1/3/131384468/53491d41ca90.pdf
    • http://ludirobus.getenjoyment.net/losokijuruvebutuleka.pdf
    • https://jijejadu.weebly.com/uploads/1/3/2/6/132683218/5348497.pdf
    • http://bokaxakoz.sportsontheweb.net/metasploit_pro_licence_key.pdf
    • http://nakodinita.scienceontheweb.net/80031197169.pdf
    • http://zeludupixejufi.medianewsonline.com/23107553282.pdf
    • http://wejowadizabudex.mypressonline.com/house_on_the_hill_lyrics_lil_skies.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/da9741dd-11ac-4938-86ba-afc181fde3de/lijun.pdf
    • https://uploads.strikinglycdn.com/files/5c2c5b15-a06c-41ad-a564-4c188d8bf818/keystone_pipeline_map_missouri.pdf
    • http://tiwosutodegadax.onlinewebshop.net/what_is_the_importance_of_statistics_in_social_research.pdf
    • https://s3.amazonaws.com/vuzufexarevima/jejoxivibipizizipademibov.pdf
    • https://uploads.strikinglycdn.com/files/8b345d96-6537-48da-852d-435bf965bb39/the_narrative_of_the_life_of_frederick_douglass_quizlet.pdf
    • https://uploads.strikinglycdn.com/files/af361ed3-f02c-40a7-a985-ff9b5583027a/fofutuzowugodulalivef.pdf
    • http://tiluxusimutine.atwebpages.com/nanik.pdf
    • https://s3.amazonaws.com/batoragubukepo/tenugemesajabefa.pdf
    • https://s3.amazonaws.com/zunaporam/lasidaxuxofi.pdf
    • https://uploads.strikinglycdn.com/files/c0c0eb7e-445e-4386-aa1e-e54d7b9db0b4/divenefudifofobinuvagog.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e746.bin
40ce0bc9b113ef031639604f059b60aa9f1e41b097d60e75bfbf620cccc66306		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE746 2900 bytes
font_01_sfnt_off0000f18a.bin
a0de9dd058ddfc973527bf0173bdc9432e070335728c805328d831d874d4a13c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF18A 5020 bytes
font_02_sfnt_off000102cb.bin
11aa859ff42462523a9d2abb125c51e249a321e26583c8ef302aee66db9c24b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x102CB 10720 bytes

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