Malicious PDF — malware analysis report

Static analysis result for SHA-256 d63e32aee8724fd9…

MALICIOUS

PDF

75.3 KB Created: 2021-04-30 23:34:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56ff6ade7cc2f9ed8dc17e3eccf16aae SHA-1: 7a01e61224fd96dd46a3bf5569d58942bf61b3dd SHA-256: d63e32aee8724fd9d8b28ef11ed5091db806811f798f99480861c7d32fdeafc3
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, contains text related to car maintenance, suggesting a phishing or social engineering lure. The embedded URI points to a suspicious URL, likely intended to lead the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://seumenha.ru/strik?utm_term=how+do+you+tell+if+an+o2+sensor+is+bad
    • https://cdn-cms.f-static.net/uploads/4383798/normal_604829e6baf7f.pdf
    • http://dreabling.online/kris_dehumidifier_manualg0o7w.pdf
    • https://varusotefus.weebly.com/uploads/1/3/1/3/131398431/71876.pdf
    • http://sovumeriwox.mygamesonline.org/roland_berger_automotive_report.pdf
    • https://static.s123-cdn-static.com/uploads/4369505/normal_60003896617ed.pdf
    • https://static.s123-cdn-static.com/uploads/4460255/normal_5fccd2f5d9f14.pdf
    • http://zerkalo-fugicar.website/50006999389yqy7t.pdf
    • http://jeweboz.iblogger.org/71565690939.pdf
    • https://fefaterivigem.weebly.com/uploads/1/3/4/3/134375274/lokif.pdf
    • http://jelolizabuvixi.22web.org/antioxidant_and_free_radical.pdf
    • http://nepatokada.mypressonline.com/oceanography_an_invitation_to_marine_science_7th_edition.pdf
    • https://static.s123-cdn-static.com/uploads/4446642/normal_5ffb5ee08c738.pdf
    • https://xafosaxit.weebly.com/uploads/1/3/1/8/131859261/9229319.pdf
    • http://lebepufu.mypressonline.com/princess_coloring_book.pdf
    • https://dapapakutuluj.weebly.com/uploads/1/3/1/3/131384169/furugowe.pdf
    • https://fajorisovobune.weebly.com/uploads/1/3/4/7/134752278/fuwib.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://viwukekev.rf.gd/kasuzadukezaxoluti.pdf
    • https://s3.amazonaws.com/fowikorejodi/first_classical_guitar_song_to_learn.pdf
    • http://nopawalaxuwaw.onlinewebshop.net/relizurozeduvukasovoj.pdf
    • https://s3.amazonaws.com/bidivo/lavaruxobix.pdf
    • https://s3.amazonaws.com/nonipesikiri/dashboard_report_bonus_history.pdf
    • http://xalesikejuxo.epizy.com/tanedu.pdf
    • http://mabagojovas.epizy.com/90853955106.pdf
    • https://s3.amazonaws.com/vudivuzakal/losiz.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb0d.bin
6053dcc30fbca8c080248b915519db758990ce1da6a9636be58db81ae79bb2e1
pdf-font-stream PDF embedded font (sfnt) at offset 0xEB0D 5328 bytes
font_01_sfnt_off0000fd4d.bin
edccc66eb1767315c771bdb157c4e144ae2c244173987b6d81adf38102e665a3
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD4D 10120 bytes