Malicious PDF — malware analysis report

Static analysis result for SHA-256 e737122b02298eae…

MALICIOUS

PDF

85.9 KB Created: 2021-04-01 18:59:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 2aa07583738e209a3ef2d21a07aa5387 SHA-1: d69d0d8b2807c6717dedee7cf7cd077bc9126b7e SHA-256: e737122b02298eae4374b67a6e89d8b00d5d933fe433769d5c41f0a8bebe8963
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL pointing to a suspicious domain, identified by heuristics and a machine learning classifier as malicious. The ClamAV detection further confirms its malicious nature, flagging it as a phishing trojan. The document body, though heavily obfuscated, appears to be related to the URL's apparent theme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

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://resalured.ru/123?utm_term=guideline+dka+pdf PDF link annotation
    • http://lubozamesorox.iblogger.org/gmat_practice_test_questions_and_answers.pdfIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/0133b634-33df-4855-92ab-08a4804c3fd3/92935300208.pdfIn PDF document text
    • http://napidolir.rf.gd/love_and_respect_emerson_eggerichs.pdfIn PDF document text
    • https://s3.amazonaws.com/wozoxub/41134907881.pdfIn PDF document text
    • http://gewagopixinilu.rf.gd/high_standard_sentinel_r-101_serial_numbers.pdfIn PDF document text
    • https://s3.amazonaws.com/lonozote/astrophytum_myriostigma_cactus_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/dufekifaral/pioneer_vsx_523_receiver.pdfIn PDF document text
    • http://kejarajavamoge.epizy.com/pathala_bhairavi_old_tamil_movie.pdfIn PDF document text
    • http://wubonaxe.epizy.com/29405545447.pdfIn PDF document text
    • https://s3.amazonaws.com/juvetaso/erase_google_maps_history_android.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/hunger_games_mockingjay_part_2_full_movie_download_in_tamil.pdfIn PDF document text
    • http://xenukelo.rf.gd/foxconn_dg33m03_motherboard_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/battlefront_2_capture_hask_reach_the_platform.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/ap_language_vocabulary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9720aae8-15fb-49bb-8ce9-7d24520d33fd/mokan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d162821d-ef3d-4a08-befa-a7416115b214/music_and_movement_activities_for_toddlers.pdfIn PDF document text
    • https://s3.amazonaws.com/pegozegi/avast_antivirus_offline_installer_64_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/woxojuxafopuv/vawabumomokoxaf.pdfIn PDF document text
    • http://zoforex.rf.gd/81192004214.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/cute_wallpaper_hd_for_android_mobile.pdfIn PDF document text
    • https://s3.amazonaws.com/wajufifenoxuj/think_of_mein_song_download.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/add_subtract_fractions_common_denominator_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifumofelu/camtasia_studio_7_for_pc.pdfIn PDF document text
    • http://zovewopot.epizy.com/how_to_use_lexus_key_glove.pdfIn PDF document text
    • http://meriwejun.rf.gd/42672805161.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000f9b0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xF9B0 10252 bytes
SHA-256: 934444b29823b9cf6bdc57992329430035c2de2b473b126fd705d6197d1994d0
font_00_sfnt_off0000ea38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA38 4548 bytes
SHA-256: 4f7911aadbf460408d64845ac9c15c0993a17c515bfda4aa42d57aa08c606f1d
font_02_sfnt_off000116af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116AF 10244 bytes
SHA-256: a53c79660d9c7cc12fad48f388fec47df09fdba1f28205dc640379efdb4fdc2e
font_03_sfnt_off000139b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x139B5 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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