Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a3331174699b16e…

MALICIOUS

PDF

86.1 KB Created: 2021-03-23 23:00:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1a39e6d54846926fe3e2ca97a76852d0 SHA-1: 24de5020338c09f0da4fe06698fa3b22ab6a6505 SHA-256: 7a3331174699b16e1144fca0f6bac7fada8bc4de07558bfc5322a21301764347
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by heuristics as a potential phishing or malware distribution vector. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the presence of external URIs suggests the document is designed to redirect the user to a malicious site, likely for phishing or to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://nipisod.ru/strik?utm_term=schlage+electronic+lock+deadbolts
    • http://logusiba.22web.org/bivariate_normal.pdf
    • http://pitupunum.iblogger.org/running_around_buddy_ross_sheet_music.pdf
    • http://ezfix.asia/bewukopezadivutafetakix122ap.pdf
    • http://sodahq.club/consejos_escolares_de_participacion_social_2019_veracruz9abdr.pdf
    • http://takipleskazan.org/kenmore_washer_drain_pump_removal11lvx.pdf
    • http://dapajurop.mygamesonline.org/deadpool_kills_the_marvel_universe.pdf
    • http://scotiaenlineape-personas.com/napiriz3q7b.pdf
    • http://goproonly.com/566249209102g4vd.pdf
    • http://ladekepevij.mygamesonline.org/what_is_the_angel_number_802_meaning.pdf
    • http://spain50off.info/bissell_poweredge_pet_hard_floor_vacuum_canadaf5sjq.pdf
    • http://good-production11.site/delonghi_portable_air_conditioner_owners_manualctbwd.pdf
    • http://icub.tech/jobodasasivafanimepanealy.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://nagofubufi.epizy.com/apush_period_3_guided_notes.pdf
    • https://s3.amazonaws.com/pazerogasarinu/spirit_blossom_thresh_how_to_get_human_form.pdf
    • http://fasitefikiseli.rf.gd/cloud_storage_platform_examples.pdf
    • http://keregimuw.onlinewebshop.net/is_vegetable_oil_an_ionic_compound.pdf
    • http://noxawobamuxila.epizy.com/43183470355.pdf
    • http://nifekubipaxo.epizy.com/jerapawoje.pdf
    • http://xujekapowizi.epizy.com/vertical_arrow_technique_worksheet.pdf
    • http://xejobutek.onlinewebshop.net/datizexik.pdf
    • https://s3.amazonaws.com/nafibanefexex/xiwuweximotarawozu.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000114a5.bin
d5b6441d8ae5c647371bec2b260e52a41821b306076ac433d5915361a0785d44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x114A5 5508 bytes
font_01_sfnt_off0001274f.bin
df567ee21da9bc6fc194688613ea92208b82d81982453075971a28a86e35eed4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1274F 10440 bytes

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