Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7f1d250afc5f0ea…

MALICIOUS

PDF

93.8 KB Created: 2021-04-07 14:48:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2ebbdb6e9a6c9ea7cdd18b1dfe4fe79b SHA-1: 2f375b8b3445a505a8e3bbaf53feacf207e8195d SHA-256: d7f1d250afc5f0ea6c86f1fe2dc25c633e571cfda74626e535a569607aab4677
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF document contains a lure related to an obsolete iPod Nano, instructing the user to install remote support software. This is a common social engineering tactic to trick users into installing potentially malicious applications. The presence of multiple unknown URLs suggests an attempt to download further payloads or redirect the user to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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/strik?utm_term=is+ipod+nano+obsolete
    • http://potozafit.medianewsonline.com/attestation_assedic_nounou.pdf
    • https://cdn-cms.f-static.net/uploads/4405651/normal_606a339384361.pdf
    • http://mnclassis.org/4702128736ns7bs.pdf
    • http://futajef.medianewsonline.com/97858230940.pdf
    • http://bipowilago.mywebcommunity.org/kizisexawazoxar.pdf
    • https://cdn-cms.f-static.net/uploads/4418185/normal_604124fedab6b.pdf
    • https://static.s123-cdn-static.com/uploads/4366337/normal_5fff5db3349af.pdf
    • https://cdn.sqhk.co/kibukumivu/au5xSii/why_did_you_choose_accounting_career_answers.pdf
    • http://cheapkeys.site/robert_frost_elementary_school_mount_prospect1crlz.pdf
    • http://rulajamizap.getenjoyment.net/afaan_oromo_dictionary.pdf
    • https://cdn.sqhk.co/gukitane/ZBsibAV/halloween_sniper_scary_zombies_mod_apk.pdf
    • https://cdn.sqhk.co/jorobasobu/GKhaihN/19757624586.pdf
    • https://cdn-cms.f-static.net/uploads/4380228/normal_606d36b143b52.pdf
    • https://cdn-cms.f-static.net/uploads/4365636/normal_604ca5651615d.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://abbf68a8-5b21-4996-91be-11266bd273ed.filesusr.com/ugd/9374a7_9b415b1dfc0041bf8000b79406606a53.pdf?index=true
    • https://7ef5d8b8-74ac-4e0a-b0a0-fa61ca6462a8.filesusr.com/ugd/23e9be_6b0ad17ca8d84594841fbdd58307521c.pdf?index=true
    • https://64f1e6a9-4530-4009-9f9b-67b91dd69f79.filesusr.com/ugd/76b6de_47659933019d44538bb22fce70ca1c2a.pdf?index=true
    • http://lawaxisagiwog.atwebpages.com/39655440737.pdf
    • https://39ad70c8-6a03-4de2-a89b-b0209cba5754.filesusr.com/ugd/d2759c_639763918ea44bbd88a13150d4428570.pdf?index=true
    • https://f9fc249e-2e6a-4908-9eb0-88005465a50d.filesusr.com/ugd/2530ee_c059952fbb0a4bb696ae9ac0b8620020.pdf?index=true
    • 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_off00013316.bin
b0ce28c745efcd71336459b503486cf90a9f47a8f2bd0c282bd97214f448dee0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13316 4936 bytes
font_01_sfnt_off000143e6.bin
7350212d4fe6a58e27b148a0e2da65c6269fd0ef307bb148c6016858dd843edf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x143E6 11272 bytes

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