Malicious PDF — malware analysis report

Static analysis result for SHA-256 09fe6bead4000c7f…

MALICIOUS

PDF

79.3 KB Created: 2021-03-28 02:04:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 30011fa16e88250a06acd80eeda3a4e4 SHA-1: 27093b1e9ec4e5a6a516a546721f3eff4cd7874c SHA-256: 09fe6bead4000c7f49567b25042e0aa1319d454bd182362fd0c400ad069ac2f8
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to a printer error code, aiming to trick users into clicking the malicious link.

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://jacksth.ru/strik?utm_term=what+is+printer+not+activated+error+code+30
    • http://trokot-tonirovka.online/mulumaretovikamevekyobbd.pdf
    • http://rawenspant.online/can_a_16_year_old_date_a_19_year_old_in_colorado5ij4m.pdf
    • http://useporte.xyz/233231386056kjf2.pdf
    • https://tudupumodowi.weebly.com/uploads/1/3/1/4/131406798/tedurevekopeki_kodob_kuzibanaruxeme_bowesi.pdf
    • http://losmopaka.site/fablehaven_1eqvku.pdf
    • https://letolikasepa.weebly.com/uploads/1/3/4/6/134625664/ef10e713b.pdf
    • http://zumbayuliya.online/88610785680vbyk2.pdf
    • http://detonic-deutschland.website/microsoft_office_2010_tutorial_free_download_32-bitbrjfa.pdf
    • http://alluniversity.fun/gumetivulafibodoll6.pdf
    • http://dom-bita.org/odessa_tx_cdl_jobspxpft.pdf
    • http://oneshops.space/nejajovijajivudanejoxowoj5mp5.pdf
    • http://krokoboko6.xyz/john_deere_145_automatic_owners_manual5xxhz.pdf
    • http://revershjtb.site/acer_aspire_v5_bios_keyxi17d.pdf
    • http://creditscorerepair.info/mowenosemavatutuzupok6p4a9.pdf
    • http://rebelliona.online/83614780808gy3jj.pdf
    • https://wofexajolevesi.weebly.com/uploads/1/3/5/3/135302186/59f80.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/31488af3-fa82-4e2d-9f27-af72d1fa063f/do_all_native_american_live_in_teepees.pdf
    • https://uploads.strikinglycdn.com/files/c63864b2-2628-4a61-a74a-bc9b454f9ac9/what_are_green_bonds_used_for.pdf
    • http://xavidopo.epizy.com/wd_my_cloud_ex2_map_network_drive.pdf
    • http://dobejefazari.rf.gd/learning_numbers_in_english_worksheets.pdf
    • https://uploads.strikinglycdn.com/files/2a91c192-cf0d-457d-9aec-faf1c3cc34ae/53243078198.pdf
    • https://uploads.strikinglycdn.com/files/ea059012-0e7c-48fd-8ccb-4736ca01ae72/83159349393.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_off0000f9e0.bin
e8c2dfe2e990387eb108c91fbb0fecc9935279b4fcb644032dcc5fbc5f9986fa
pdf-font-stream PDF embedded font (sfnt) at offset 0xF9E0 5508 bytes
font_01_sfnt_off00010ca5.bin
a33acf7b3a0ab2d82b782b08df1da71a97cb1e2d91bec356084e6bc71846903a
pdf-font-stream PDF embedded font (sfnt) at offset 0x10CA5 10292 bytes