Malicious PDF — malware analysis report

Static analysis result for SHA-256 029f32dabbd13c56…

MALICIOUS

PDF

85.8 KB Created: 2021-03-29 22:47:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b49ced9d29944f6476b5714464f54c7a SHA-1: a8eca5ed650d52b5ae69af104e74682b5163c016 SHA-256: 029f32dabbd13c561f6430949e0ddc0ac2a26141d5df25d47bc9bf935fd94836
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to 'https://zajinet.ru/wix?keyword=hackers+apk+mod+1.208', which is presented as a download for 'hackers apk mod 1.208'. This strongly suggests a phishing or social engineering attack aimed at tricking the user into visiting a malicious site. The ML classifier and ClamAV detection further support the malicious nature of the file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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://zajinet.ru/wix?keyword=hackers+apk+mod+1.208
    • https://cdn-cms.f-static.net/uploads/4459914/normal_604da4d3a0803.pdf
    • http://metalllift.ru/comparing_fractions_worksheet_unlike_denominatorsuiubl.pdf
    • https://cdn-cms.f-static.net/uploads/4369916/normal_6024c82fe8efa.pdf
    • https://cdn-cms.f-static.net/uploads/4484122/normal_603e973777068.pdf
    • https://cdn-cms.f-static.net/uploads/4454301/normal_60476d6ea5d28.pdf
    • https://static.s123-cdn-static.com/uploads/4502236/normal_600836e0185b3.pdf
    • http://xepidenad.scienceontheweb.net/lojonunofizemiwajenarag.pdf
    • http://vajesafosedepur.mywebcommunity.org/76005512868.pdf
    • http://kowojolajamuv.getenjoyment.net/apocalipsis_14_6.pdf
    • https://cdn-cms.f-static.net/uploads/4421788/normal_5fd73aec68e61.pdf
    • https://static.s123-cdn-static.com/uploads/4369310/normal_5ff0035ea36b9.pdf
    • https://cdn-cms.f-static.net/uploads/4453334/normal_602687924e32d.pdf
    • http://golixudib.mypressonline.com/josokoxiwad.pdf
    • http://limaxinsto.xyz/idling_to_rule_the_gods_speedrun_guidecmmkq.pdf
    • http://zotoxilob.getenjoyment.net/mixamudokitafukuw.pdf
    • https://cdn-cms.f-static.net/uploads/4415309/normal_604d5cc5a3a64.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/nilititonawafim/32326937534.pdf
    • https://s3.amazonaws.com/wetevali/binepolujigodozeroregom.pdf
    • https://s3.amazonaws.com/ravuxudibure/aradhana_movie_songs_audio.pdf
    • https://s3.amazonaws.com/muwemivumazulax/litawusigopugafagusimu.pdf
    • https://s3.amazonaws.com/jutenojamega/what_are_the_five_creative_arts_disciplines_subjects.pdf
    • http://wojibikifi.myartsonline.com/curso_de_frances_gratis_en.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e5a3.bin
556f82d0d136a8553965662124eb7facc8f071e7c89b6c29c72723f238b5e3ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE5A3 5320 bytes
font_01_sfnt_off0000f7aa.bin
eaffa036e6badc202e09940282408231ed3c4057c5af522c8f297f94a566af62		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF7AA 1912 bytes
font_02_sfnt_off000100fb.bin
3849c5fd89b2b9049bb90cc1ed3b0efacc1aa88b0fda0892d5f961f5809230fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x100FB 10892 bytes
font_03_sfnt_off00012692.bin
354dce64f07f3d7acdf6a04edf763950ffbfec4edcbb4bfe17b65a83544077bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12692 16036 bytes
font_04_sfnt_off00013afa.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13AFA 4324 bytes

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