Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2e822d8342618c6…

MALICIOUS

PDF

89.1 KB Created: 2021-03-22 23:26:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: ccccb291acf20fee4de0d6332c9a67de SHA-1: 11949a02a3a2bbf5dfcd165c13fba61367fb4798 SHA-256: d2e822d8342618c602b954c510464fa42ff459dca3c10262ee6fa0a50966fc96
212 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which points to a known malicious redirector infrastructure. The document body, though heavily obfuscated, appears to be a lure for a movie download, aligning with phishing or malware distribution tactics. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://yafferge.ru/123?utm_term=proloy+bengali+full+movie+720p In PDF document text
    • https://wudusalulolatus.weebly.com/uploads/1/3/1/6/131606476/xagomewofidutuw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411919/normal_604aee5ddb435.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367313/normal_600c6331009a8.pdfIn PDF document text
    • https://kolenogu.weebly.com/uploads/1/3/1/8/131871799/tigodozegoxel_zakupedoref_levudig.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366408/normal_60316a6c8046c.pdfIn PDF document text
    • http://gujinir.22web.org/revinomanij.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://fedorahosted.org/lohitIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef7ef694-bfce-421f-8d06-f5e32b6455d1/the_woman_in_the_window_2020_netflix_release_date.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/635ea8d7-883a-4708-a9b3-459e63dc69d8/download_light_novel_sword_art_online_progressive_bahasa_indonesia.pdfIn PDF document text
    • https://71347f20-8353-4153-bebc-dd2a28b3a5cf.filesusr.com/ugd/a382ee_9f2ebe5b6155461abd78abdbf5a285f4.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lovomijelun/jugagirewukafiwakufiru.pdfIn PDF document text
    • http://bixifededas.rf.gd/wujemobuwagamiwafinav.pdfIn PDF document text
    • http://dogufisojorosef.epizy.com/ashrae_handbook_2020_download.pdfIn PDF document text
    • https://s3.amazonaws.com/dowesitobuga/tarukeluzaxesuvifug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc5b1e7c-5984-4a29-b5cc-9239e8398354/7385835717.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/673db217-1161-4fa2-ad48-ec066be264d5/wrt160n_default_admin_password.pdfIn PDF document text
    • https://s3.amazonaws.com/dikobepibelun/43394374828.pdfIn PDF document text
    • https://7e8267f5-6380-480e-ad72-df526eaefc07.filesusr.com/ugd/cbe325_eea15230cbf04891baa1b6b46f126c94.pdf?index=trueIn PDF document text
    • https://6205d428-d5dc-494e-bbc3-e2236f9d811e.filesusr.com/ugd/6885a6_dd5c086ac0dd4d529f4d0ee78fde9b89.pdf?index=trueIn PDF document text
    • https://8e0cabef-d481-4215-b437-8a5fc4e4723c.filesusr.com/ugd/f41140_bfb8a23fdee94f89b32abac5df14bb28.pdf?index=trueIn PDF document text
    • http://kawozubugomolen.epizy.com/do_garbage_disposal_have_a_reset_button.pdfIn PDF document text
    • http://ketanuviz.epizy.com/4701859847.pdfIn 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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010180.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10180 5500 bytes
SHA-256: ec1d3928d570475bef6582ed2d004edffdfb73c13d08df21a272bdab6e2401d6
font_01_sfnt_off0001142d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1142D 12424 bytes
SHA-256: 6838a36256ff57084a80a65e9a672eb5fd375ff269b007333d4be7a9b58e687a
font_02_sfnt_off00013d89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D89 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
font_03_sfnt_off00014b89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14B89 2660 bytes
SHA-256: ee1cdb32a08af8cebddce141510bf978adcf214245d68db9256661c471206b22