Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e6e25ab075941cc…

MALICIOUS

PDF

69.4 KB Created: 2021-03-31 02:28:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e3ca5ebcabb9c323de43e6bbfc9eb78f SHA-1: 6be4851e74b0811366b6e5c8c909315b1e3d3cde SHA-256: 2e6e25ab075941cc4ad5ad8f768d3c5885d4f4dda05267a45557d6609f5b6c0f
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that directs the user to a suspicious URL, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, potentially leveraging JavaScript for execution.

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://nipisod.ru/award?keyword=cell+communication+pogil+pdf
    • https://cdn.sqhk.co/sunomedude/3hiFvjb/mackerel_fishing_hook_size.pdf
    • https://cdn.sqhk.co/fovudadeweto/gghE0Wx/free_the_bubbles_apk_mod.pdf
    • https://cdn.sqhk.co/bililusele/hXrlwii/cabal_online_para_android.pdf
    • https://cdn-cms.f-static.net/uploads/4492250/normal_602466bc91ed8.pdf
    • http://dosaxixapaxa.medianewsonline.com/how_to_lie_with_statistics_summary.pdf
    • https://cdn.sqhk.co/vefomatakin/ghggemG/xidinarotakubuwitik.pdf
    • http://moxupasasitote.mywebcommunity.org/papixepemo.pdf
    • https://cdn-cms.f-static.net/uploads/4380070/normal_60359345aa25e.pdf
    • https://cdn.sqhk.co/nenutipu/dihjgWL/grumpy_cat_memes_christmas_jingle_bells.pdf
    • http://linodogeb.scienceontheweb.net/bekaboxivovixive.pdf
    • https://static.s123-cdn-static.com/uploads/4464052/normal_60081e3b4278b.pdf
    • https://static.s123-cdn-static.com/uploads/4402252/normal_5fe07b7fe2f22.pdf
    • http://nujagexurej.medianewsonline.com/nora_roberts_book_2021.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://kexomun.myartsonline.com/kindle_fire_read_books.pdf
    • http://rosevasejila.myartsonline.com/a_league_fixtures_2020_20.pdf
    • http://wowijikozo.epizy.com/marvelous_designer_tutorial_espaol.pdf
    • http://godutiliwaganos.rf.gd/ajooba_movie_all_video_song.pdf
    • http://xepijuxidejo.epizy.com/training_calendar_template_excel_free.pdf
    • http://kivozusemu.atwebpages.com/bupifamunak.pdf
    • http://nakixaxev.myartsonline.com/75816398810.pdf
    • http://sipanokule.onlinewebshop.net/vetazavijenisoxemuk.pdf
    • http://visugog.myartsonline.com/jesus_says_the_kingdom_of_god_is_in_you.pdf
    • http://ramivigemotaf.epizy.com/suffixes_exercise.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_off0000d30e.bin
b74587b8cec9a0afff99885e2c3d9f80f7c2ed79ef9cedd843a84bcea3f8d8a9
pdf-font-stream PDF embedded font (sfnt) at offset 0xD30E 5104 bytes
font_01_sfnt_off0000e45d.bin
8a390be75d649174a018f966db1a741b6ee51ea46218db370beff11faae8815f
pdf-font-stream PDF embedded font (sfnt) at offset 0xE45D 10852 bytes