Malicious PDF — malware analysis report

Static analysis result for SHA-256 c747f65aed70730a…

MALICIOUS

PDF

83.8 KB Created: 2021-03-09 09:07:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ada9cf12e55f6ab52cc279344db83ee9 SHA-1: d8a819a59135dd1c80ff9fc1b6977c26222fd04d SHA-256: c747f65aed70730a8e395ebde512744a61c227a54fb8c7385c202c1837655413
96 Risk Score

Malware Insights

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

The file is a PDF that contains an external URI pointing to a URL that appears to be a lure for downloading a template. The ML classifier and ClamAV detection strongly indicate maliciousness, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the PDF suggest it's designed to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://vilenefex.ru/123?utm_term=free+apa+template+for+microsoft+word+2010
    • https://cdn.sqhk.co/gimatuvuwiw/rTDgcif/tanuvufuro.pdf
    • https://cdn.sqhk.co/mafulavet/fdBibHe/how_to_play_chess_endgames.pdf
    • https://cdn.sqhk.co/jaruxabal/hiiaBig/big_baby_tik_tok_youtube.pdf
    • https://static.s123-cdn-static.com/uploads/4491965/normal_5feff2681f288.pdf
    • https://cdn.sqhk.co/matapolid/ahhgjia/52862263558.pdf
    • http://opt15.ru/dufonugexameki7f.pdf
    • http://mini-cam2.club/cressi_leonardo_user_guideky2jf.pdf
    • https://cdn.sqhk.co/gixixutiji/04HmQjg/gradius_3_snes_romsmania.pdf
    • https://cdn.sqhk.co/xomatujod/8YqaVhf/87004289030.pdf
    • https://cdn.sqhk.co/bamebuxi/bhgdgct/original_green_pan_reviews.pdf
    • https://cdn.sqhk.co/vezubusevof/imgN5EN/beziwaxelibawuzaw.pdf
    • https://cdn.sqhk.co/pigexebobe/aJT28vx/private_caller_id_uk.pdf
    • https://static.s123-cdn-static.com/uploads/4407994/normal_5ff004c23169f.pdf
    • https://cdn.sqhk.co/wifopuzuxiba/rhihegj/linking_verbs_examples.pdf
    • https://cdn.sqhk.co/zegofurop/ghnjdii/xopigaxofawakufapubunalu.pdf
    • https://cdn-cms.f-static.net/uploads/4453907/normal_603133880e380.pdf
    • https://cdn.sqhk.co/faxonudogot/hau3icz/orange_balls_on_my_sushi.pdf
    • https://static.s123-cdn-static.com/uploads/4394071/normal_600965ce86d6e.pdf
    • https://cdn.sqhk.co/lopijikuvi/xK6jdhb/all_movies_on_hulu_right_now.pdf
    • http://roman-holidays.shop/systems_engineering_mastersfda2q.pdf
    • https://cdn.sqhk.co/zezinojox/f7n0Iie/download_ski_safari_adventure_time_apkpure.pdf
    • https://cdn.sqhk.co/kupuruvew/b0XqH9G/birdman_nba_tattoos.pdf
    • http://espaceclient-cmb.com/zuzopoxonuwugil1fd.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • 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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNU
    • http://www.gnu.org/copyleft/gpl.htmRegular

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f15f.bin
d39e744d5912508dbbe386d44a7df387f4ececda5668c5737a114efde321fd41		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF15F 5356 bytes
font_01_sfnt_off000103a5.bin
b91f3c26f37c28538ed09035cbea6f9221827f1e30b50c452f08cc820bcc167b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103A5 3720 bytes
font_02_sfnt_off00010f08.bin
c945fa9faf82f51616cf0ae23da6c101f34645e1733072646750b3d3cc2c6985		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10F08 10604 bytes
font_03_sfnt_off00013315.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13315 4324 bytes

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