Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba0c6a3479a976b7…

MALICIOUS

PDF

77.9 KB Created: 2022-05-24 22:06:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2022-07-15
MD5: 6346e6a5fd6dcd07d3064baa6db46450 SHA-1: e48c964c216e148dbf9016309d740c9b259efcb8 SHA-256: ba0c6a3479a976b7136f20f00a67da13c15ef5d957d6fa5cc0b38f98e94a52f0
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious. 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 is heavily obfuscated, preventing a clear understanding of its specific lure, but the presence of external URIs strongly suggests a phishing or credential harvesting attempt.

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://ragaz.co.za/YmrXLWy8?keyword=annotate%20pdf%20macbook%20pro%20software%20reviews
    • https://dobre-akce.cz/media/files/file/nojurusazafugu.pdf
    • https://franciscovalles.comtraining.cl/userfiles/files/96996258893.pdf
    • https://gefeteki.weebly.com/uploads/1/3/4/3/134310298/kinilubujegibarelat.pdf
    • https://rinedasufuketon.weebly.com/uploads/1/3/4/3/134340565/gavefamubi.pdf
    • https://mipajadotafev.weebly.com/uploads/1/3/2/8/132814286/mavujafaveko.pdf
    • https://isuzuphonoi.com/data/dulieu/files/85542288986.pdf
    • http://flapboxes.com/userfiles/files/87175714715.pdf
    • https://junaxukag.weebly.com/uploads/1/3/4/4/134493834/bugeruwet_mukip_radufuxitame_gibafojomivaz.pdf
    • https://duvutonog.weebly.com/uploads/1/3/6/0/136020002/2553b63f.pdf
    • https://fuzimisadu.weebly.com/uploads/1/3/5/3/135319831/5302222.pdf
    • https://ngonluathan.vn/images/ckeditor/files/29124067574.pdf
    • https://rebiteno.weebly.com/uploads/1/4/1/3/141323971/pidusom.pdf
    • https://nawogixabejuj.weebly.com/uploads/1/3/4/6/134617161/pigetivasiten.pdf
    • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16282ffa54c959---68676172104.pdf
    • https://giginuxamuzavab.weebly.com/uploads/1/4/1/5/141588289/pibosave.pdf
    • https://masejufubalabej.weebly.com/uploads/1/3/4/3/134388341/9c90731dd4988f.pdf
    • http://cy2hand.com/userfiles/94678913274.pdf
    • http://www.luna1956.com/images/library/File/91274157914.pdf
    • http://kerama.altrodesign.eu/ckfinder/userfiles/files/85935243778.pdf
    • https://gimipozadifan.weebly.com/uploads/1/3/1/3/131380487/ada56aa3.pdf
    • https://rapemejutunabow.weebly.com/uploads/1/4/1/5/141501211/c590d.pdf
    • http://zaborov10.ru/upload/files/kaxovesitusizaga.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cb17.bin
ef344f2373e1b62114a5ff27c82765addfefcd78cc0cd02b525d53ebe0777598		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCB17 11100 bytes
font_01_sfnt_off0000e4da.bin
2222533e06611635feb4ad1c96a82cec536cc438b5565e550470ad4b8ec528ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE4DA 16844 bytes
font_02_sfnt_off000110ca.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x110CA 16792 bytes

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