Malicious PDF — malware analysis report

Static analysis result for SHA-256 9238636eae005900…

MALICIOUS

PDF

82.6 KB Created: 2021-03-22 11:41:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2b8883ee4cbce23c3887185ffa698171 SHA-1: 521c8d53eb74658b3903ea85000f1b9a07b7d613 SHA-256: 9238636eae005900dff2daf6caec0ccf4cd6fdd651d4f49e599daa9c51970fa8
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL pointing to a malicious domain, likely intended to trick the user into clicking it. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to redirect the user to a harmful resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://druttle.ru/wix?keyword=pocket+pimped+orthopedic+surgery+pdf
    • http://setavifisotater.22web.org/18061009102.pdf
    • http://xebupalifu.22web.org/65825686224.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/wuzalugiseto/62568903758.pdf
    • https://uploads.strikinglycdn.com/files/e422e036-bca5-4f7e-950e-c406f88765f4/94166081312.pdf
    • https://uploads.strikinglycdn.com/files/2d7a786f-afda-458a-9bed-0a47c0d3d0b4/xekavuketomujevovasakuwo.pdf
    • https://uploads.strikinglycdn.com/files/1577a172-6759-413f-ad0c-d9576b52e6cf/stuart_hall_encoding_decoding_citation.pdf
    • https://s3.amazonaws.com/jugobimuraje/58639393787.pdf
    • https://s3.amazonaws.com/foneniz/the_top_five_regrets_of_the_dying_book_in_hindi_free_download.pdf
    • https://s3.amazonaws.com/votuweroxigezog/zojirushi_water_boiler.pdf
    • https://s3.amazonaws.com/wujafivabipo/zojegobesujoge.pdf
    • https://s3.amazonaws.com/lanubili/alcoholism_ppt_presentation_free.pdf
    • https://uploads.strikinglycdn.com/files/feb33870-5aeb-48c7-a664-de22d7faf281/43764692114.pdf
    • https://s3.amazonaws.com/wivunonovef/naxajuwibepoliwejinisuwo.pdf
    • https://s3.amazonaws.com/vavabi/lisibosi.pdf
    • http://vigaroxirari.epizy.com/wagner_power_steamer_wallpaper_removal.pdf
    • https://uploads.strikinglycdn.com/files/4b43ef1c-6322-4521-b77d-5400c9900540/zewiriguwen.pdf
    • https://uploads.strikinglycdn.com/files/e6008c7a-d798-4a98-a6d1-571e69bb4cc8/tempe_town_lake_running_path.pdf
    • https://s3.amazonaws.com/bawalidamovidud/irelia_mid_build_guide.pdf
    • https://uploads.strikinglycdn.com/files/48665966-efee-491f-93ff-b3b90a1d37f6/how_to_tell_if_carb_is_rich_or_lean.pdf
    • https://s3.amazonaws.com/tipikaxe/dugogata.pdf
    • https://s3.amazonaws.com/kisagoz/alarm_clock_android_app.pdf
    • https://s3.amazonaws.com/medaliwifufugel/67548691042.pdf
    • https://s3.amazonaws.com/jugobimuraje/39570763233.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f761.bin
f1ecb8a5122a6ca8b4ae8a8d7956f5173f36d9c6dfc67eb32d4d43de24b55b43		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF761 5268 bytes
font_01_sfnt_off00010955.bin
efe3f9d0e028012ff41ac92c48ecdda905a34456991146d119f4b8e8117c9e02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10955 11016 bytes
font_02_sfnt_off00012f03.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12F03 4324 bytes

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