Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd44f23a89189a56…

MALICIOUS

PDF

79.9 KB Created: 2021-03-13 15:59:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90eabbb307245ea4744027dba3423540 SHA-1: 28ba60a7b339f77e8dc20748f40c087efaf69f2c SHA-256: fd44f23a89189a565b3dcf238cd9ff648cd46b857c51b410dd79817e5c8e3b64
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URL that mimics a download link for a popular game mod. This lure is a common tactic for phishing or distributing further malware. The ML classifier and ClamAV detection strongly indicate malicious intent, with the embedded URL being the primary indicator of the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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/123?utm_term=naruto+blazing+mod+apk+2.+9+0
    • https://pomapufawupufus.weebly.com/uploads/1/3/5/3/135397804/8878545.pdf
    • https://static.s123-cdn-static.com/uploads/4383928/normal_5fe55e58cf1c6.pdf
    • http://getchambre.xyz/lokopawakevetabusavuzofazf31ek.pdf
    • http://vzroslyh.net/how_to_charge_parmak_solar_fence_chargerwbfew.pdf
    • http://car-test.pro/53730762023lptfi.pdf
    • http://priz24.site/can_cancer_affect_anyone922bk.pdf
    • http://komikewewi.iblogger.org/free_bb_trumpet_sheet_music.pdf
    • https://minunelojob.weebly.com/uploads/1/3/1/4/131453060/vemofulu_fanivopidawemol_vodimod_zirapomipegale.pdf
    • https://cdn-cms.f-static.net/uploads/4369498/normal_60223ab142d83.pdf
    • http://badgesverified.com/53075606346w30ct.pdf
    • http://nukicew.xyz/s_chand_physics_class_9_chapter_1_solutionsq9cja.pdf
    • https://nidoziba.weebly.com/uploads/1/3/0/8/130873853/xamozoxejazevom.pdf
    • http://flowerport.shop/moniciones_domingo_xviii_del_tiempo_ordinario_ciclo_cglxvx.pdf
    • https://static.s123-cdn-static.com/uploads/4377679/normal_5febb6d68858d.pdf
    • http://foyou.store/what_is_the_spark_plug_gap_for_a_husqvarna_chainsawoqu28.pdf
    • https://kopaluzakiletal.weebly.com/uploads/1/3/0/7/130739322/zazovotovodafa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://lalatotusawedo.epizy.com/wetakikolana.pdf
    • https://s3.amazonaws.com/sepovutapakogaf/93920339527.pdf
    • https://s3.amazonaws.com/gafedupeba/fusasopowobaxega.pdf
    • http://damaxokabipo.epizy.com/uniforme_chasseur_ardennais_1940.pdf
    • https://s3.amazonaws.com/jivamubug/citizen_mens_nighthawk_eco-drive_blackout_watch.pdf
    • https://s3.amazonaws.com/degagaziv/abhishek_bachchan_photo.pdf
    • http://sasugud.rf.gd/5856123338.pdf
    • https://s3.amazonaws.com/lomogas/libro_3msc_por_tu_amor.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_off0000ed99.bin
4fb2cfd3c1236d74ef3d1b13b2dce3c9affcdeb815fad695415e928e160b8cfa
pdf-font-stream PDF embedded font (sfnt) at offset 0xED99 5788 bytes
font_01_sfnt_off00010149.bin
b8010f71808e60a07313da5e5a9cf5a428e5bff9f397fe5d19a45855384a9c32
pdf-font-stream PDF embedded font (sfnt) at offset 0x10149 21572 bytes