Malicious PDF — malware analysis report

Static analysis result for SHA-256 89b20da4883dd0b1…

MALICIOUS

PDF

83.1 KB Created: 2021-05-18 07:58:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bbb99e103245a98e3667dce424fa1c8a SHA-1: 76191e5861240e7975a645de6c87888530387c89 SHA-256: 89b20da4883dd0b18385072e8f9222dd85a1dd48a32733c556f7f0ee30000547
96 Risk Score

Malware Insights

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

The PDF file contains a heuristic indicating an external URI, specifically pointing to a URL related to hacking a game. This URL is likely used to redirect the user to a malicious site. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://jacksth.ru/strik?utm_term=how+to+hack+csr+racing+2+2020
    • http://limevekobo.iblogger.org/41763087376.pdf
    • http://sozaxasofurem.22web.org/nevilaratapomuzopu.pdf
    • http://monufovaxuj.66ghz.com/computer_hardware_categories_examples.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://jelelonu.rf.gd/25142813230.pdf
    • http://baxuzotaxuli.epizy.com/nixon_watch_repair_perth.pdf
    • https://uploads.strikinglycdn.com/files/f7c5eaab-dfa0-4d36-b0c9-e1a172f62055/wixovopogegulula.pdf
    • http://denotepisijolib.rf.gd/82571432642.pdf
    • https://uploads.strikinglycdn.com/files/f94ce185-efd4-47aa-8b05-60f27763c00f/27714148072.pdf
    • http://vobununebufipu.rf.gd/78346696069.pdf
    • http://bozolukiket.epizy.com/barrons_essential_words_for_the_ielts.pdf
    • http://zegemipufe.epizy.com/which_software_is_good_for_c_programming.pdf
    • https://uploads.strikinglycdn.com/files/0edc6ef7-d374-4f8d-95ea-ac11352cd7a5/medios_de_comunicacion_en_una_empresa_ejemplos.pdf
    • http://lobanegogoriwem.epizy.com/ambiguous_sentences_in_english.pdf
    • https://uploads.strikinglycdn.com/files/e4c208de-6f33-4d9c-97d5-b8aba297d19d/fofazopugadosezegasu.pdf
    • https://uploads.strikinglycdn.com/files/38cb823b-84be-4503-8d25-16dff7bb7294/legalaj.pdf
    • http://dimebuturerab.epizy.com/calderas_de_vapor.pdf
    • https://s3.amazonaws.com/mejobu/android_appcompat_theme.pdf
    • https://s3.amazonaws.com/kisagoz/battle._net_is_slow.pdf
    • https://s3.amazonaws.com/fusopoxipo/suwesupojawodajasizon.pdf
    • https://s3.amazonaws.com/jotizifime/what_are_the_theories_of_vocational_career_development.pdf
    • http://bojidalukin.epizy.com/zisaxesu.pdf
    • https://s3.amazonaws.com/sinamozagemoger/fesavinivo.pdf
    • http://rofagarurazope.rf.gd/52150903305.pdf
    • https://uploads.strikinglycdn.com/files/8917cafc-7b59-471e-bbd5-00c5feec790c/how_to_get_rid_of_raised_pimples_on_face.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000efed.bin
183b7e1a9cf71af8302e35174f836c33e5bf848df05e0327d1640c6b8a142746		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEFED 5420 bytes
font_01_sfnt_off0001026b.bin
29525af9aa2806312f7b194e3f7e59054cb396490efe1107a0711535ad7fb13b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1026B 11164 bytes
font_02_sfnt_off000127c8.bin
e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x127C8 16204 bytes

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