Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5eeac58bd06421d…

MALICIOUS

PDF

239.8 KB Created: 2022-05-15 17:51:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2022-07-15
MD5: 935b5ac69c28d7355ba0a5abe8ef16e0 SHA-1: 65f315407aa9a50f2861454ca9f9973c7367403a SHA-256: c5eeac58bd06421dd8379a6783c8feafabfa69c0610909b7b4c9b9e3a5d1d4f2
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The file is identified as a malicious PDF by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious URL, likely intended for phishing or malware distribution. The PDF structure itself does not contain readable content, but the presence of the external URI is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7080

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://lazav.co.za/XSRYdR1H?utm_term=ap+psychology+sensation+and+perception+test+pdf+free+pdf+printable+free
    • https://2winit.com/Files/files/bisotezusevupi.pdf
    • http://jph.kr/userData/ebizro_board/file/retomiparujaninebejef.pdf
    • https://wojegobazirazu.weebly.com/uploads/1/4/1/2/141254368/13ab08175a.pdf
    • https://etevent.itweald.com/uploads/files/6260517eddbd8.pdf
    • https://kenawogerawe.weebly.com/uploads/1/3/4/5/134593039/7166505.pdf
    • http://iuppitergroup.it/kcfinder/upload/files/jexavekaxevesitejara.pdf
    • http://htygroup.com/upload/files/juwin.pdf
    • https://bisigibibozika.weebly.com/uploads/1/3/4/4/134438783/3002780.pdf
    • https://generixa.weebly.com/uploads/1/3/5/3/135350481/4a1e483f96.pdf
    • https://mesofozup.weebly.com/uploads/1/3/5/3/135351624/6678e37.pdf
    • https://vetukagur.weebly.com/uploads/1/3/4/3/134358228/davogi.pdf
    • http://maketmaster.ru/admin/ckfinder/userfiles/files/metulewolopijevupaf.pdf
    • https://famixarusefon.weebly.com/uploads/1/3/4/3/134396739/1437a8.pdf
    • https://avflash.nl/upload/files/judezovoximafe.pdf
    • https://fadojoxenan.weebly.com/uploads/1/3/4/6/134666181/wokiremuv-zopapiv-nirozokidal-lites.pdf
    • http://kaiyudachem.com/filespath/files/20220412184916.pdf
    • https://fagisidide.weebly.com/uploads/1/3/2/6/132682833/637c388.pdf
    • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/a7583f03f59a0ad2223f4496feb6e21d/femuj.pdf
    • https://zurejekivob.weebly.com/uploads/1/3/0/8/130813755/cc677d5d1ad4d4.pdf
    • https://lukajupuxeburi.weebly.com/uploads/1/3/4/6/134630189/jinasi-lodajuwopij-makukapuvot.pdf
    • http://www.aqua-systems.com.tw/ckeditor/kcfinder/upload/files/48523312806.pdf
    • http://yavuzselimvakfi.org/resimler/site/files/lazovimexogumekutirujomod.pdf
    • https://sixinezuze.weebly.com/uploads/1/3/4/8/134883495/9661701.pdf
    • https://rinixupikexem.weebly.com/uploads/1/3/4/0/134096042/b1bd1cf.pdf
    • http://garmaclima.com/uploads/ckfinder/files/xozatinuluji.pdf
    • http://vipacademy.org/userfiles/file/11324801139.pdf
    • https://tebefatudu.weebly.com/uploads/1/3/4/3/134329870/sugonedolu.pdf
    • https://rudiwiguxovo.weebly.com/uploads/1/3/5/3/135317070/jerij-dijureramo-sitavu.pdf
    • https://webkapper.nl/ckfinder/userfiles/files/xiwumakurem.pdf
    • https://sporyolu.com/resimler/files/vasofuziteb.pdf
    • https://delularisif.weebly.com/uploads/1/3/4/4/134482541/meravebaverukudor.pdf
    • https://bimstudioinc.com/media/files/zigilu.pdf
    • https://firstview.christoff-design.com/files/fubovogadavabipi.pdf
    • https://jokuvaput.weebly.com/uploads/1/3/4/5/134589987/zovaza-sawatu.pdf
    • https://devubavoxonor.weebly.com/uploads/1/3/2/7/132741482/vigewalan.pdf
    • https://sufewusog.weebly.com/uploads/1/3/4/6/134644796/829eb23a.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00034822.bin
64bb41d9396040b28092fcf32ae76a547a201bca914cae136e468ee717a893ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x34822 16912 bytes
font_01_sfnt_off00037431.bin
6df00093d1a1fd8b8f95901b42ba2863538c90606311dd4adf1993a433792d13		 pdf-font-stream PDF embedded font (sfnt) at offset 0x37431 1692 bytes
font_02_sfnt_off00037c39.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x37C39 16792 bytes
font_03_sfnt_off00039452.bin
72ce72773906723afbd5d587abc5b46dec513c1bf1881a10adb05b72e63a85b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x39452 11136 bytes

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