Malicious PDF — malware analysis report

Static analysis result for SHA-256 7352576a2b4b2565…

MALICIOUS

PDF

115.0 KB Created: 2021-05-13 06:29:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70e389caf0e64020394bc21257abf2a9 SHA-1: 2a27d4bd214ad4746fedf868a5c856163f044f2a SHA-256: 7352576a2b4b2565abf2feba453e61bd843dcd2a1b34efcdec3f8869a94ba45c
136 Risk Score

Malware Insights

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

The PDF document exhibits characteristics of an advance-fee scam, specifically mentioning lottery winnings and parcel delivery requirements. The presence of external URIs, including one pointing to 'xezojetit.ru', suggests the document is designed to redirect users to malicious sites. The ML classifier and ClamAV detection further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9934

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
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://xezojetit.ru/strik?utm_term=panasonic+plasma+tv+65+inch+vt50
    • http://xirijapip.mypressonline.com/glencoe_advanced_mathematical_concepts_precalculus_with_applications_teacher_s_edition.pdf
    • https://cdn-cms.f-static.net/uploads/4471513/normal_603893c020c76.pdf
    • https://static.s123-cdn-static.com/uploads/4487431/normal_5fff14f39e8ea.pdf
    • http://zajiledafalam.getenjoyment.net/vavewajutizukaz.pdf
    • http://zirisumiwuxi.iblogger.org/absceso_renal_tratamiento.pdf
    • https://static.s123-cdn-static.com/uploads/4389568/normal_5ff4b8148943f.pdf
    • http://fexuvukenix.22web.org/guripezejuleju.pdf
    • https://cdn-cms.f-static.net/uploads/4453342/normal_6030653e4ab89.pdf
    • https://static.s123-cdn-static.com/uploads/4409258/normal_5feb58f7b480a.pdf
    • http://zevibeponakat.getenjoyment.net/bagowigikejewumena.pdf
    • http://nipawifaxupus.mygamesonline.org/learn_old_norse_language.pdf
    • http://zokasup.22web.org/comentario_biblico_beacon_tomo_1_gratis.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/jawusawar/t-fal_fr8000_deep_fryer_reviews.pdf
    • https://s3.amazonaws.com/zukogi/66988168162.pdf
    • https://s3.amazonaws.com/kugelilizibuwum/landscape_design_architecture.pdf
    • https://s3.amazonaws.com/jokotaziweluge/jefunitefolawuxazokifap.pdf
    • http://zokitidekav.epizy.com/83338139269.pdf
    • https://s3.amazonaws.com/widuxade/agricultural_marketing_notes.pdf
    • https://s3.amazonaws.com/mojivikapeti/android_studio_emulator_does_not_show_app.pdf
    • http://tukufewusi.epizy.com/dr_br_ambedkar_books_in_marathi.pdf
    • https://s3.amazonaws.com/vabedafozo/3413903904.pdf
    • http://saxuvoluzoz.epizy.com/48475964772.pdf
    • http://fagajewajemanov.epizy.com/82961536062.pdf
    • http://vugozagiduzek.rf.gd/sijuma.pdf
    • https://s3.amazonaws.com/dozuga/fusion_360_tutorial.pdf
    • http://betizig.epizy.com/55550917300.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_off00017826.bin
54d439cedbf8a7559c2acdb05cb6cba4643f2a9d3c43e01bac867cdb0b698ea3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17826 5228 bytes
font_01_sfnt_off000189c5.bin
9d7eb8ebf850455c1b9e77e296c21fb81b80bf4eb4dd78b0a6315d132626b6a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x189C5 11180 bytes
font_02_sfnt_off0001afe3.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1AFE3 4324 bytes

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