Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c0f2e1be60d9d10…

MALICIOUS

PDF

109.6 KB Created: 2021-04-02 20:52:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2483886b895fc97570b38f0846007fbd SHA-1: 4f18a7411606a5dda165665ee921504f4db5a112 SHA-256: 1c0f2e1be60d9d100ff16bf1705d08546f8b724f726564d9feb22f4bce04703d
96 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with the primary one being `https://xezojetit.ru/award?keyword=vaikom+muhammad+basheer+stories+pdf`. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/award?keyword=vaikom+muhammad+basheer+stories+pdf
    • http://lubevos.scienceontheweb.net/jeff_buckley_hallelujah_piano.pdf
    • http://manidat.sportsontheweb.net/grimorio_de_arbatel.pdf
    • https://cdn.sqhk.co/midijanere/jggdgdx/i_can_do_it_vending_machines.pdf
    • https://nodigikoj.weebly.com/uploads/1/3/4/3/134384892/0de43c3784c3.pdf
    • https://cdn.sqhk.co/xovikojux/id7ieif/gedisodukanuwosajomakul.pdf
    • http://jajokojunewi.mypressonline.com/13554517455.pdf
    • http://tejovotemikodes.getenjoyment.net/79698609493.pdf
    • http://tonedomopoja.scienceontheweb.net/mesaxibezejidepixakadode.pdf
    • https://vukexelisijaka.weebly.com/uploads/1/3/1/0/131070195/9315830.pdf
    • https://cdn.sqhk.co/zirigajer/ihcLZjb/brown_leather_pants_plus_size.pdf
    • http://ledozikatiresev.scienceontheweb.net/konadinivogosezo.pdf
    • https://cdn.sqhk.co/lutidofele/gmeDbih/vakakidibedike.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102Hussain
    • http://smc.org.inhttp://smc.org.in
    • https://uploads.strikinglycdn.com/files/c5c8cfc4-d497-4387-ad4c-be9b0ef763d1/wildgame_innovations_mirage_20_game_camera_reviews.pdf
    • http://supuwevul.atwebpages.com/16902066323.pdf
    • http://kepelagivon.rf.gd/2020_telugu_calendar_with_holidays.pdf
    • http://mawebiruna.rf.gd/90839203569.pdf
    • http://wupotatide.rf.gd/rijuvi.pdf
    • http://jajogagek.atwebpages.com/90106709778.pdf
    • https://uploads.strikinglycdn.com/files/0f5d8e18-af37-4e92-b4d6-aae9fc539187/26298890861.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
    • https://gitlab.com/smc/meera/blob/master/COPYING

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013bc0.bin
cd73de955b6c29edbd1973142ae642706740c6343eb34d6612520407a33d8e9c
pdf-font-stream PDF embedded font (sfnt) at offset 0x13BC0 5420 bytes
font_01_sfnt_off00014df8.bin
5549a985038cc39d4fcefbd686a8b7035f1c501b3e5fff601ee0c5aec4378cb8
pdf-font-stream PDF embedded font (sfnt) at offset 0x14DF8 16192 bytes
font_02_sfnt_off0001809d.bin
ce412d54ccfa27ba83f7c6c1f658fa2a2fff1e0fd8b3d22778d5d27c37daf44c
pdf-font-stream PDF embedded font (sfnt) at offset 0x1809D 11748 bytes