Malicious PDF — malware analysis report

Static analysis result for SHA-256 460b72e3dc566c51…

MALICIOUS

PDF

84.3 KB Created: 2021-03-29 09:04:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 5b99286f3ecb870be6352b208cd226d2 SHA-1: 2f83824cf8b8d939a66bee7a879b10351d3745cc SHA-256: 460b72e3dc566c51eb2da4947033d3e999e54682fc67ae0540f5ac63bf866b6e
104 Risk Score

Malware Insights

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

The PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains multiple embedded URLs, one of which is a direct link to a file named 'ugc net management books 2020 pdf'. The presence of a 'download button' heuristic further suggests a social engineering attempt to trick the user into downloading a payload. No scripts were extracted, but the overall structure and heuristics point to a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://jacksth.ru/strik?utm_term=ugc+net+management+books+2020+pdf PDF link annotation
    • https://cdn.sqhk.co/lumolixuwo/idchihq/fruit_ninja_game_free_download_for_pc.pdfIn PDF document text
    • http://grandov.pro/ajzen_i._1991_theory_of_planned_behavior_organizational_behavior_and_human_decision_processesw7214.pdfIn PDF document text
    • https://bitigufej.weebly.com/uploads/1/3/5/3/135337089/tajupenejegu_mufubuxeme.pdfIn PDF document text
    • http://newsportstechnology.ru/amino_acids_biochemistrymztbi.pdfIn PDF document text
    • http://copyrightsupport-ig.com/rush_hour_4_trailert62js.pdfIn PDF document text
    • https://rimekadosa.weebly.com/uploads/1/3/4/4/134467829/03cb0eb936.pdfIn PDF document text
    • https://kaxulajitalum.weebly.com/uploads/1/3/0/7/130740012/dagutakakedekufoz.pdfIn PDF document text
    • https://cdn.sqhk.co/kulobibab/iaifgeT/sakutil.pdfIn PDF document text
    • https://cdn.sqhk.co/jirudumom/hbzhgcD/tips_for_stick_war_gameplay.pdfIn PDF document text
    • http://usblighter24.site/woxotasopalotoralogezullrcia.pdfIn PDF document text
    • https://kazodorog.weebly.com/uploads/1/3/4/9/134904699/8136018.pdfIn PDF document text
    • http://setofexperience.site/nobutazinaz2tdy.pdfIn PDF document text
    • http://pihodze.com/damagufaribilazifiwus0jsq.pdfIn PDF document text
    • http://xozonline.ru/51982924383ye5bq.pdfIn PDF document text
    • http://razvivatel.blog/fazawume8s9.pdfIn PDF document text
    • https://cdn.sqhk.co/goduwonon/BjhChhh/zezunakuwoz.pdfIn PDF document text
    • http://fitokaps.xyz/gilavukaxefafipukumnwlce.pdfIn PDF document text
    • http://netewe9.xyz/who_moved_my_cheese_onlineeflxj.pdfIn PDF document text
    • https://pefisidedufe.weebly.com/uploads/1/3/4/9/134902532/mazuzanikawikinarepe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tidigudetefumof/nasanogotironakixunivag.pdfIn PDF document text
    • https://s3.amazonaws.com/busutafitufe/60622875684.pdfIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/the_saxon_tales_wikia.pdfIn PDF document text
    • https://s3.amazonaws.com/ratixifo/40008643439.pdfIn PDF document text
    • https://s3.amazonaws.com/xisefowu/gevevusutoximidatujaro.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/how_to_use_char_broil_digital_electric_smoker.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010ace.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10ACE 5816 bytes
SHA-256: dbda848e6a8b024bdac1d0d43bc63ddcadbc7227a9503c844640761bfe3183b1
font_01_sfnt_off00011e8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E8E 10936 bytes
SHA-256: 13918b048cbf87dc075eb328a834ed0e7a8765eaad55317b984993eb8e4b318f

Open this report in the interactive analyzer, or submit your own file for analysis.