Malicious PDF — malware analysis report

Static analysis result for SHA-256 e19aaf4daf373fe6…

MALICIOUS

PDF

95.0 KB Created: 2021-03-11 16:51:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a62a7675e7b7613675a73cec2724d14 SHA-1: d20d737c12ee5418189a28c4d6577f294982fc45 SHA-256: e19aaf4daf373fe6a14e7c72328544e6993bea36b3d7e6cd3144b4c31b95bb79
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain. The ML classifier and ClamAV detection strongly indicate maliciousness, classifying it as a phishing trojan. The embedded URL is likely used to redirect the user to a malicious site for further exploitation.

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://nipisod.ru/123?utm_term=attitude+status+pictures
    • http://russianstravel.ru/beginners_guide_to_sketchup88ore.pdf
    • https://tapugagujug.weebly.com/uploads/1/3/0/8/130813715/5ec66b07ed8686.pdf
    • https://jizufuvarax.weebly.com/uploads/1/3/1/1/131164460/dorexesu_verupawenoxinu_rurutibarun_molefoponabonag.pdf
    • http://mishgen.com/ffxiv_allied_seals_guideb6y4e.pdf
    • http://promooffer.site/cessar_ou_site_http_enccejanacionaxv290.pdf
    • http://nenonazuf.scienceontheweb.net/ca_real_id_drivers_license_requirements.pdf
    • http://lnstagramverificationbadge.com/473720439853z08.pdf
    • http://nurokojo.mypressonline.com/14410400442.pdf
    • https://cdn-cms.f-static.net/uploads/4368503/normal_6037689b40f7c.pdf
    • http://mkuu.club/top_10_bengali_movie_websitequ25e.pdf
    • http://fruit-ital.space/ap_chemistry_chapter_14_chemical_kinetics_testxvk2l.pdf
    • https://wonaxegem.weebly.com/uploads/1/3/6/0/136049801/1757156.pdf
    • http://kimokabif.medianewsonline.com/28469044309.pdf
    • http://perevod24-card2card.site/4311995767ld4ue.pdf
    • http://lifelalulenomip.mygamesonline.org/ronezitumesosefepizimu.pdf
    • https://static.s123-cdn-static.com/uploads/4443356/normal_5fde7f0839e1e.pdf
    • http://mamefumiwuto.mywebcommunity.org/60960704629.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • http://gixarewujedel.atwebpages.com/jixigativowoja.pdf
    • http://xenexafa.myartsonline.com/jakajamasipaselig.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNU
    • http://www.gnu.org/copyleft/gpl.htmRegular
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f8e6.bin
b704a887a86bf6e5e3a43b200f2b96937dc0ec90b919b9a1de0f54e534fb1719		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF8E6 5024 bytes
font_01_sfnt_off00010a06.bin
d0c9e33916e9e64e42e31bcf0d345f6c2fcd41735b1a34df0119bd0eb1094281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A06 3720 bytes
font_02_sfnt_off0001156a.bin
db6ac6aa5c5524c56f849a332739257940d47987a937ddbabefbad50cd519deb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1156A 10668 bytes
font_03_sfnt_off000139e9.bin
72525d37f300c9b0c65430d0698bb727513baca4e8d78892122fb4a3f18aeb70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x139E9 16372 bytes
font_04_sfnt_off00015010.bin
4b4eca4dcdc61372dce4f728dcf5eb8345db08d0571ce21567488adc65d2eaf8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15010 8804 bytes

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