Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dceeec9fcbc54f5…

MALICIOUS

PDF

95.5 KB Created: 2021-04-05 10:59:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9e8fc0cb26069bc785e3ffe059d5064e SHA-1: d129961bd6640939bf27f69c305680c4cea60a5a SHA-256: 5dceeec9fcbc54f5c7fb353b9d0c9fa5955d0f060f5e813b55981ba33a490524
96 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating the presence of external URIs and embedded URLs, with one prominent URL being https://ponafet.ru/wix?keyword=singer+promise+sewing+machine+manual. The document body, though heavily obfuscated, contains text related to a 'Singer promise sewing machine manual' and the wkhtmltopdf application, suggesting a lure. The ML classifier and ClamAV detection strongly indicate maliciousness, likely related to phishing or malware distribution via the embedded URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9958

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://ponafet.ru/wix?keyword=singer+promise+sewing+machine+manual
    • http://kernig.pro/refazuwim64qhx.pdf
    • https://cdn.sqhk.co/xotabuti/fjhZ5Lp/monkey_racing_mod_apk_revdl.pdf
    • http://llloooodddd.space/why_is_my_creepy_crawly_not_workingwx704.pdf
    • http://sq11mini.com/best_pressure_washer_for_the_money_2020exccc.pdf
    • https://zedimubaxujejit.weebly.com/uploads/1/3/4/7/134715534/bofakitisixe-jaragetek-tujuxaruremewo-biworajale.pdf
    • https://ruregogawumol.weebly.com/uploads/1/3/2/8/132815787/lifupiwitazox.pdf
    • http://gnatural.space/pehle_to_kabhi_kabhi_mp3c0epq.pdf
    • https://cdn.sqhk.co/puzokopu/gegigfc/sovosusazakotolu.pdf
    • http://ejqy.com/xijabipusafczn1z.pdf
    • https://logikepuni.weebly.com/uploads/1/3/4/4/134459966/guzomozeda_duwagab.pdf
    • http://italia-doc.fun/7.3_powerstroke_repair_shops4dxbo.pdf
    • http://abreudesigns.com/hp_laserjet_p2035_service_manual5gkyw.pdf
    • http://solent.bar/58840049750ema8v.pdf
    • http://toppiksnack.xyz/2261390100wfqfx.pdf
    • https://cdn.sqhk.co/fegibowaxus/Hiahjij/zuwunonetoru.pdf
    • https://cdn.sqhk.co/vujuzira/jdOlP8l/rockbot_1_apk.pdf
    • https://zajinepimasi.weebly.com/uploads/1/3/2/8/132815118/buvikevinoberog-gijapi-xawemex-bubarusaru.pdf
    • https://cdn.sqhk.co/modajili/jgjcgd0/pajivebuwunevexoviwep.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/fajetufekejo/kegidimes.pdf
    • https://uploads.strikinglycdn.com/files/fd628bc0-8fb2-409c-b37b-3cd170faa41a/zajavosiwetoji.pdf
    • https://uploads.strikinglycdn.com/files/f37462b2-dd1d-43a8-b978-7bec8192012e/universal_audio_apollo_twin_mkii_duo_10x6_thunderbolt_audio_interface.pdf
    • https://s3.amazonaws.com/kokesatodixon/fundsmith_equity_income_fund_factsheet.pdf
    • https://uploads.strikinglycdn.com/files/71fafea2-805b-4e4f-a4c9-3b517d1e0c4a/leather_carry_on_luggage_with_laptop_compartment.pdf
    • https://uploads.strikinglycdn.com/files/c0227179-bec6-4750-a7da-52c2c0928325/sonicwall_tz400w_price.pdf
    • https://s3.amazonaws.com/supefujoxopubu/kajokenebifusazagadibebil.pdf
    • https://s3.amazonaws.com/padosumifubobo/amway_online_registration_form.pdf
    • https://uploads.strikinglycdn.com/files/ff75fe12-39d6-4369-bd3b-baad56084780/xubofisojodonezupabuvan.pdf
    • https://s3.amazonaws.com/petubapizo/calibre_android_version.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_off0001372e.bin
acb791eb6f68111dc3a3ce8b28a980dda6c9555b4851f7ad8e7d79a1390a9bb7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1372E 5544 bytes
font_01_sfnt_off000149f0.bin
6a05c2c22030a19f4dc14086162f003e7b2f457b56ec20369a067026e628c81e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x149F0 11132 bytes

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