Malicious PDF — malware analysis report

Static analysis result for SHA-256 06b02a8def242772…

MALICIOUS

PDF

91.4 KB Created: 2021-03-15 13:09:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5edb3d31726c0af610eda81c0e1b41bf SHA-1: 78fbfa21de3a82f90d9b89364a484f8b831f33cd SHA-256: 06b02a8def2427728c5e5bffacce5d141d749a63027f786dd4d768f8ef3afc41
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL pointing to a suspicious domain, which is likely used to deliver a secondary payload or conduct phishing. No scripts were extracted, but the presence of the external URI and the ML/AV detections strongly indicate a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://soxebez.ru/wix?keyword=mobile+strike+research+guide+2018
    • https://baxovazexozubuv.weebly.com/uploads/1/3/4/3/134318553/vakazeb-zebolelageb-razekavomoniti-kitinok.pdf
    • https://cdn-cms.f-static.net/uploads/4386094/normal_601d5b5de5f12.pdf
    • https://cdn-cms.f-static.net/uploads/4485010/normal_6019cfb774bf4.pdf
    • https://rigivopamakor.weebly.com/uploads/1/3/4/8/134869382/fejakezuwomipuli.pdf
    • https://furimubabo.weebly.com/uploads/1/3/1/8/131856330/zumegagaxoripa.pdf
    • https://xonutadeb.weebly.com/uploads/1/3/0/7/130775355/vizenetov_mobadadopev.pdf
    • https://mofafodoler.weebly.com/uploads/1/3/0/8/130874416/lasaz-xiserenamulufe.pdf
    • http://fegokodelaxen.scienceontheweb.net/99366894453.pdf
    • http://jisutuxoxaza.medianewsonline.com/atletismo_salto_largo.pdf
    • https://zebewanuvaxa.weebly.com/uploads/1/3/4/6/134613040/romedinuk.pdf
    • https://mubonunegaj.weebly.com/uploads/1/3/0/8/130874179/6295121.pdf
    • http://gidonuvawugirid.medianewsonline.com/magic_tree_house_merlin_missions_books_1-25.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/xijalovelokolep/game_choki_choki_ar_boboiboy.pdf
    • https://uploads.strikinglycdn.com/files/1290ec8a-9795-4343-ae40-7224d38f27e7/philips_norelco_series_5000_nose_trimmer_5100_nose_eyebrow_and_ear_trimmer.pdf
    • https://s3.amazonaws.com/tolivajupeku/genie_acsd1g_compatibility.pdf
    • https://uploads.strikinglycdn.com/files/a9337bad-41a9-4a9f-92b6-975ee429ad77/ottlite_led_desk_lamp_not_working.pdf
    • https://s3.amazonaws.com/pisik/vifiwefepuwakaselokom.pdf
    • https://uploads.strikinglycdn.com/files/5c68644d-36eb-48c8-82c5-938617ef55bf/61092180456.pdf
    • http://kivozusemu.atwebpages.com/20535960543.pdf
    • https://uploads.strikinglycdn.com/files/546c9be9-0688-4864-96e5-15c22d368a66/tapizomibezevifiga.pdf
    • https://uploads.strikinglycdn.com/files/8c4fc25c-23b2-4c2c-a1de-39af1ecad459/how_to_hedge_fund_managers_make_money.pdf
    • https://s3.amazonaws.com/wexukufedepim/star_wars_knights_of_the_old_republic_mod_apk_download.pdf
    • https://s3.amazonaws.com/zazelujeju/asrs_report_database.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010cee.bin
4e6268f0bb5d8603f3a9d25a1a7ff8964b1a9d63b26317ef63f6a5368729dd61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10CEE 5708 bytes
font_01_sfnt_off00012067.bin
e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12067 1800 bytes
font_02_sfnt_off000128f5.bin
c43320960e48966b4ccc72cefc2b37579341c8f102f71346530d94af82945ff9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x128F5 11484 bytes
font_03_sfnt_off00015000.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15000 4324 bytes

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