Malicious PDF — malware analysis report

Static analysis result for SHA-256 d08cd19405ce6244…

MALICIOUS

PDF

70.0 KB Created: 2021-03-03 14:01:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a0aba8779648a41fcd132923b1242ee1 SHA-1: 2ed585959b2a9f21b2908bbc6070595e50c6cb31 SHA-256: d08cd19405ce6244c82380dea556fcd6a7706a557f6900a0e3317961d1d6e374
96 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. It contains an embedded URI pointing to a suspicious domain, likely intended to host a phishing page or download further malware. The document body, though heavily obfuscated, suggests a lure related to 'Dho health science'. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly suggest a phishing or malware distribution attempt.

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://xezojetit.ru/wix?keyword=dho+health+science+pdf
    • https://cdn.sqhk.co/dodamewope/jaUggJ4/multiplayer_battle_arena_games_for_iphone.pdf
    • https://cdn.sqhk.co/soxosovave/jgJdVje/windrunner_nike_rain_jacket_mens.pdf
    • http://magazinrf.xyz/power_is_power_cersei_quotesud1c9.pdf
    • https://cdn.sqhk.co/rabuzopat/auYgigc/red_rose_wallpaper_for_phone.pdf
    • https://cdn.sqhk.co/bosamame/cZgcnhb/tie_dye_hoodie_womens_uk.pdf
    • https://cdn.sqhk.co/fefamujigip/IOhjzic/cute_wallpapers_for_ipad_air.pdf
    • http://rezonansmusic.com/tiny_battle_flash_gamedi1ah.pdf
    • http://amorexpo.com/moto_g6_plus_charger_specsvhgwp.pdf
    • http://wakinozogedix.iblogger.org/how_do_you_convert_cm2_to_m2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/salosibejodod/age_of_empires_3_trainer_free.pdf
    • https://s3.amazonaws.com/gozilum/nilekinezin.pdf
    • http://negemabubitaso.rf.gd/51283366433.pdf
    • http://nijopupeboxisa.epizy.com/dejedifiremigorajevir.pdf
    • http://lugaderova.epizy.com/alcatel_linkzone_manuale_italiano.pdf
    • http://wabelat.epizy.com/13736180914.pdf
    • https://s3.amazonaws.com/zifilobesumafi/the_most_accurate_weather_app_for_android.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_off0000d680.bin
3c358f2613a7df02cc69f6285db59fd8a84f18fb3a789f296aa78e1e0e9734cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD680 5148 bytes
font_01_sfnt_off0000e80f.bin
e00c75bdb0e985aa0fa4eaa312b59fa0750edc7cfcecb5aa3258a04737b3bf8c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE80F 10400 bytes

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