Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9c1489bad0e6d47…

MALICIOUS

PDF

78.6 KB Created: 2021-04-22 04:36:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9bf2819b1157609df311775b6380639b SHA-1: 75aea3a1d6b8df45b7a06a2bc42756989c2f1844 SHA-256: d9c1489bad0e6d477214731b305607f6191d8b2dec38b356a8d6c4b7a982ca79
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to financial topics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://resalured.ru/strik?utm_term=how+to+learn+stocks+and+shares+for+beginners
    • https://cdn.sqhk.co/xonarewu/AQidheG/wolfquest_2._7._3_free_download.pdf
    • https://cdn.sqhk.co/sepufaziru/i6jcVww/xejasoxir.pdf
    • https://cdn-cms.f-static.net/uploads/4410004/normal_600c723a8f71a.pdf
    • https://cdn-cms.f-static.net/uploads/4448984/normal_604d1e96a5630.pdf
    • http://gitikirazidapi.medianewsonline.com/monthly_current_affairs_in_english.pdf
    • http://koxivesuvif.mypressonline.com/paxasokobovoxiveb.pdf
    • https://cdn-cms.f-static.net/uploads/4386335/normal_5fe8bb24da7a7.pdf
    • http://tavafotuzefox.sportsontheweb.net/15274022700.pdf
    • https://cdn.sqhk.co/wudubure/je8BKgc/red_light_district_amsterdam_pictures.pdf
    • https://cdn-cms.f-static.net/uploads/4452853/normal_6058335726afa.pdf
    • https://cdn.sqhk.co/gapebeve/4Nhhhdu/raceroom_racing_experience_steam.pdf
    • https://cdn-cms.f-static.net/uploads/4385424/normal_604d054a2bde0.pdf
    • https://cdn.sqhk.co/risevejuxik/Lybiigj/42040403869.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://tojopoxirer.rf.gd/aoe_2_forgotten_empires.pdf
    • https://34886cf3-15ed-44db-93e8-8979dc7c4cd7.filesusr.com/ugd/ea2c45_9ffa8013d20e4ec083d2f1ce55dfb917.pdf?index=true
    • https://uploads.strikinglycdn.com/files/376d7ac6-2575-4adf-8e8b-e7c8a2c69acc/what_is_the_price_of_redmi_note_4_pro.pdf
    • https://uploads.strikinglycdn.com/files/249c29e7-f557-42eb-a26a-671f54a38c58/gojaverazu.pdf
    • https://43dda2ad-fadc-418c-a2d5-4b96cca2ed60.filesusr.com/ugd/6eca9c_dab2991aafdb44c288300baad3d252ef.pdf?index=true
    • http://gugefojekasarul.epizy.com/55465420501.pdf
    • https://uploads.strikinglycdn.com/files/1d1f1433-2903-46b4-942a-7e78fea68b52/xopamomo.pdf
    • http://kebenubes.onlinewebshop.net/scholarship_answer_sheet.pdf
    • http://murapimopavopa.myartsonline.com/wishcraft_barbara_sher_deutsch.pdf
    • https://72858ab8-d36f-4bc2-b208-e5ec56e76d01.filesusr.com/ugd/3a4e0e_184c5812d42f46819a507c2f1728204d.pdf?index=true
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e760.bin
bccb56845a4a5677d75ff1c291b702906aaa5157d9579092f8248ca97020d99a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE760 5328 bytes
font_01_sfnt_off0000f982.bin
948f23d7c3c82085c55ae0373f399c27c36afca3d6d46051e6167d0fc7c341cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF982 10824 bytes
font_02_sfnt_off00011e84.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11E84 4324 bytes

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