Malicious PDF — malware analysis report

Static analysis result for SHA-256 36e06aa6b6eb633e…

MALICIOUS

PDF

225.1 KB Created: 2021-01-15 16:01:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: de64a4f364d1be29629cdf033ceea98e SHA-1: 715acbe9682f2210c1f924cd97f541bed0a5f386 SHA-256: 36e06aa6b6eb633e9a0c78e16e63f52a91ae649d50680805e7cfe8b752a970c0
156 Risk Score

Malware Insights

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

The sample is a PDF document flagged by ML classifiers and ClamAV as malicious. It contains a credential phishing lure impersonating a brand, with an action link pointing to a redirector that ultimately leads to a phishing page. The embedded URL also suggests a phishing or malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9427

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://kurikezexiwu.weebly.com/uploads/1/3/0/7/130775092/dikukigaravapotufi.pdf.
  • 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://trafffi.ru/aws?utm_term=malaysia+airlines+mh370+report+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4488855/normal_5fd8d34aa9e69.pdfIn PDF document text
    • https://site-1191779.mozfiles.com/files/1191779/infinity_sign_meaning_definition.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447270/normal_5fa765cecb7ba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503987/normal_60013d83a6d5f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500447/normal_5ff7773825485.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375093/normal_5f96d06522d94.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463277/normal_5fc299a7503f3.pdfIn PDF document text
    • https://site-1167964.mozfiles.com/files/1167964/dont_touch_my_ipad_wallpaper_cute.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463538/normal_5fce8136c0618.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369333/normal_5f8d43d0c719c.pdfIn PDF document text
    • https://kurikezexiwu.weebly.com/uploads/1/3/0/7/130775092/dikukigaravapotufi.pdfIn PDF document text
    • https://cdn.sqhk.co/virixerusupa/EUFibvj/geometry_dash_hacked_online_games.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002f5ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F5AE 8992 bytes
SHA-256: db52d2dbec2e8cde137b0435e7f993a3053233b30795d9042aad5bdefc23f471
font_01_sfnt_off0003137b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3137B 5560 bytes
SHA-256: 990554e67aaab38adb19bb9ae6b5189f6151e7d66c0d35804a5926d6a6bb6361
font_02_sfnt_off00032638.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32638 12960 bytes
SHA-256: 70f6e60f9c065303866242c819452522a419e2e0d265abd6ae3f07b175b5979d
font_03_sfnt_off0003521a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3521A 16180 bytes
SHA-256: bfa791181ce826547180fd49114cc76f77c7b748fef5a3b3830d6c30ee2946e8
font_04_sfnt_off0003673c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3673C 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

Open this report in the interactive analyzer, or submit your own file for analysis.