Malicious PDF — malware analysis report

Static analysis result for SHA-256 f23e630f00cfac88…

MALICIOUS

PDF

70.0 KB Created: 2021-03-10 19:26:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 18bcc3d47a09eea8d0ea36a12ff0f4c4 SHA-1: 25d8bfb41840594c4220384c12a9422e9b1be1d0 SHA-256: f23e630f00cfac88752dfffa8f56f2e8f1718d0bdc66539b73f8875c40805372
136 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristic 'SE_LOLBIN_RUN_COMMAND' suggests the document attempts to execute commands, likely to download and run a second-stage payload from the embedded URLs. The document body, though partially corrupted, contains text related to 'project on domestic violence pdf', serving as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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://kuzutuzo.ru/award?keyword=project+on+domestic+violence+pdf
    • https://cdn.sqhk.co/sawomunuj/iiH6icq/best_sugar_free_banana_cake_recipe.pdf
    • http://xonitaj.mywebcommunity.org/braun_series_7_790cc_wet_dry_mens_electric_shaver_with_clean_station.pdf
    • http://zikewexer.scienceontheweb.net/tilaxeg.pdf
    • http://ritixibetono.mygamesonline.org/breitling_chronometre_aerospace_review.pdf
    • https://rosanibo.weebly.com/uploads/1/3/4/8/134873488/botezovo.pdf
    • http://memisada.mygamesonline.org/23369136528.pdf
    • http://kudukudimox.sportsontheweb.net/33710096809.pdf
    • https://vimedapajabapi.weebly.com/uploads/1/3/5/3/135309909/6ac4e54c5f159.pdf
    • https://sotugenedoximo.weebly.com/uploads/1/3/4/0/134040923/78f392.pdf
    • http://pidawudimo.scienceontheweb.net/79486694011.pdf
    • https://cdn.sqhk.co/dasadogiso/vlijS2z/umc_connect_las_vegas.pdf
    • https://cdn.sqhk.co/lusesito/zKcMshe/spell_defense_epic_bricks_breaker_quest.pdf
    • http://xonitaj.mywebcommunity.org/b
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://namakanexir.atwebpages.com/how_to_do_wave_curls_with_flat_iron.pdf
    • http://raxajabidadida.onlinewebshop.net/venubufulowemuvo.pdf
    • https://s3.amazonaws.com/benuka/12510944326.pdf
    • https://uploads.strikinglycdn.com/files/a4b7ec77-eb2e-4937-b3fc-fca24a25273d/what_is_the_story_of_la_la_land.pdf
    • https://s3.amazonaws.com/tiduro/playdead_inside_game_apk.pdf
    • https://uploads.strikinglycdn.com/files/403d20eb-2b48-47a5-8847-519137c0d6b9/spanish_b_for_the_ib_diploma_textbook_answers.pdf
    • https://s3.amazonaws.com/banula/effects_of_migration_in_nigeria.pdf
    • http://widusop.atwebpages.com/7436030464.pdf
    • https://s3.amazonaws.com/sesijesule/8030255643.pdf
    • https://uploads.strikinglycdn.com/files/49c8c3d3-9ec2-48ca-acfb-88e09e04b8bb/85731511102.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_off0000d62b.bin
40569c619ad832354262608a920fdf7600ee7c2266d0c10d42aa084ab9404d89		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD62B 5228 bytes
font_01_sfnt_off0000e7ee.bin
c0396c5563b8a60371fbf5bd40bd7217bfb94a530f6396ba84ca7bef588f7660		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE7EE 10204 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.