Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9780d7627fc00aa…

MALICIOUS

PDF

252.5 KB Created: 2022-06-06 05:55:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2022-07-15
MD5: 50e338adc6aafc952d437e73b1b8faf0 SHA-1: 9080febf7769d0c8dd23917d2c2611801b5ed496 SHA-256: c9780d7627fc00aa90e8c091ad9d3208b5d74e7b016e701ee08a6ea98c065605
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains an embedded URL pointing to a suspicious domain, which is a common tactic for phishing attacks. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and detection results strongly suggest a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7783

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://norin.co.za/XSRYdR1H?utm_term=michael+kors+access+watch+manual+online+free+version
    • https://zirovosenes.weebly.com/uploads/1/3/4/3/134316706/nonusi.pdf
    • https://gutirevenomosub.weebly.com/uploads/1/3/5/4/135400373/dokawuwawuvilamulej.pdf
    • https://gulekikafosevog.weebly.com/uploads/1/3/2/3/132303175/43c60765f034739.pdf
    • https://gebikatewizej.weebly.com/uploads/1/3/4/3/134311033/6127097.pdf
    • https://jiranunurojowoz.weebly.com/uploads/1/3/1/8/131860868/vafumizuga_gudexavarolofa_vojodizumi.pdf
    • http://retrievers.su/ckfinder/userfiles/files/muxafomokewasoxakugu.pdf
    • https://tagudosalanuku.weebly.com/uploads/1/3/1/4/131452811/4710632.pdf
    • http://domosplast.hu/files/file/damozixugurizazarisadebux.pdf
    • https://pifaxatopegamu.weebly.com/uploads/1/3/4/1/134108845/25b9a3f6301e.pdf
    • https://olympicaccessoriesbd.com/assets/ckeditor/kcfinder/upload/files/gabokowolovotumap.pdf
    • https://mevesazikixewo.weebly.com/uploads/1/3/4/3/134366921/ledamu.pdf
    • https://tebumozokafu.weebly.com/uploads/1/3/4/4/134471783/5a3fce2bd4d1633.pdf
    • https://dunufofobepo.weebly.com/uploads/1/3/4/3/134380723/jojidoziredojo_revirof.pdf
    • https://gaxiworet.weebly.com/uploads/1/3/1/4/131408942/petupesude_sinuwajedevo.pdf
    • https://bisodipodur.weebly.com/uploads/1/3/4/5/134592442/tipesa-xelotuw-befawumere-resujujafosoma.pdf
    • https://rogenogenitel.weebly.com/uploads/1/3/4/3/134316557/jotawikewulafix.pdf
    • https://jexenixikejov.weebly.com/uploads/1/3/4/6/134632916/muzujizova_kosixototosuje_kavex.pdf
    • https://kufofena.weebly.com/uploads/1/3/4/5/134504524/redesila-muridumod-sibasinufokobe.pdf
    • https://sanupeden.weebly.com/uploads/1/3/5/9/135961416/dififotuwijol_fajame_ronixonogagipob.pdf
    • https://pudureginaraji.weebly.com/uploads/1/4/2/0/142016091/f67753e.pdf
    • https://bafuzonexive.weebly.com/uploads/1/3/0/7/130739369/2680691.pdf
    • https://tuvunexe.weebly.com/uploads/1/3/4/3/134327091/fe731ebbd.pdf
    • https://mekiwiker.weebly.com/uploads/1/4/1/7/141756251/3599960.pdf
    • https://xogisepemilala.weebly.com/uploads/1/4/1/5/141564799/nuxetujodirogovafi.pdf
    • http://bebaldebaran.eu/userfiles/files/kebovadapevabokepit.pdf
    • https://pubigomem.weebly.com/uploads/1/4/1/4/141458154/acc1815e406c.pdf
    • https://rewajugelawuz.weebly.com/uploads/1/3/0/7/130738764/gidibubejite.pdf
    • https://mamasikixatok.weebly.com/uploads/1/3/5/9/135961158/megexe.pdf
    • https://fitxpower.fr/lib/ckeditor/kcfinder/upload/files/kuzuwufatakaminajazizumom.pdf
    • https://ranatugirebulox.weebly.com/uploads/1/3/4/0/134017659/8888783.pdf
    • https://larulevi.weebly.com/uploads/1/3/6/0/136004384/nexunenu_todejogomimede.pdf
    • https://tiwotutekog.weebly.com/uploads/1/3/4/7/134722077/5859345.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_off00038282.bin
58d9cc22e339e8674cb010d5339b4ed75355ad34ff2eb8c8e4aafbfc67e8ea9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x38282 17848 bytes
font_01_sfnt_off0003b10c.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3B10C 16792 bytes
font_02_sfnt_off0003c923.bin
6f2db8eae01eab14cc0f26b2c605c0ba50cd07f3e5b9e218fb9eedb6d3556964		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3C923 10940 bytes

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