Malicious PDF — malware analysis report

Static analysis result for SHA-256 59de12744e18d980…

MALICIOUS

PDF

75.1 KB Created: 2021-02-23 02:36:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2c7ddde20417e3f5fe5c10674f881c31 SHA-1: 78a1c3ca322aff8442a77687597fac46e5a50bf3 SHA-256: 59de12744e18d980e6ba0fc648245556b47e08ac58cda50f38d1481aeb2aa274
104 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an external URI pointing to a suspicious domain and multiple embedded URLs that likely serve as download locations for further payloads. The presence of a 'download button' heuristic further supports the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://seumenha.ru/wix?keyword=watch+angel+beats
    • https://cdn.sqhk.co/tireronerogo/hVD7Mhb/zakibebesedebe.pdf
    • https://cdn.sqhk.co/pigajifaw/j3hbYgc/idling_to_rule_the_gods_pet_stones.pdf
    • https://norobeso.weebly.com/uploads/1/3/4/5/134586389/xudabino_vafuwo_xokiwogopowu.pdf
    • https://tujobofawoti.weebly.com/uploads/1/3/2/6/132695409/9310565.pdf
    • https://cdn.sqhk.co/falunibesedo/7hgJgjm/piano_melody_notes.pdf
    • https://cdn.sqhk.co/ximegawaso/DbijhMw/lock_screen_password_not_working_windows_10.pdf
    • https://dibasipelop.weebly.com/uploads/1/3/0/7/130738559/2519de93e1db9.pdf
    • https://wijedokimevu.weebly.com/uploads/1/3/4/6/134649091/nobane.pdf
    • http://vanebitedituki.22web.org/vikudivekisoxenikud.pdf
    • http://wuwisometojone.66ghz.com/arduino_mega_adk_datasheet.pdf
    • https://cdn.sqhk.co/puzadowoke/jcYkifG/80438346023.pdf
    • https://cdn.sqhk.co/badaxiloru/fhbhbeR/digital_ringtone_mp3_song_new.pdf
    • https://cdn.sqhk.co/mepapogivoma/4ghWXLd/mabexulavopekepesiwa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rufegojokod.epizy.com/top_english_albums_2018_free.pdf
    • http://levowemorunob.epizy.com/airplane_emoji_android.pdf
    • http://jugikan.epizy.com/bautagebuch_vorlage_excel.pdf
    • http://vimedunofonuw.rf.gd/gta_4_android_aptoide.pdf
    • https://s3.amazonaws.com/jadere/abcd_2_songs_pagalworld.pdf
    • http://wipapirub.epizy.com/murukowivalukajola.pdf
    • http://bokatamekal.rf.gd/rofulemajefevabizobegogu.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_off0000ea99.bin
7ac9da2a8c7b86214b380511bdc669ec9b33f89da47667203b6e424565fc259b
pdf-font-stream PDF embedded font (sfnt) at offset 0xEA99 5116 bytes
font_01_sfnt_off0000fc14.bin
064bbcb6a18dd4614ddd8baefd910696cd01b8a967351c543292ea4f1a560f3e
pdf-font-stream PDF embedded font (sfnt) at offset 0xFC14 10208 bytes