Malicious PDF — malware analysis report

Static analysis result for SHA-256 c74a21921b70a590…

MALICIOUS

PDF

170.0 KB Created: 2021-05-29 21:47:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 61e30eeb12e655f63409ce926057fb09 SHA-1: 82fb28efb832f79f311501bde88cc63304e4417e SHA-256: c74a21921b70a590d37e4f5914194515561a9e690814a99e66e8056d08b3a33f
216 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File T1059.001 PowerShell

The PDF document contains lures related to 'free download' and 'remote support tools', indicating a phishing attempt. It also includes heuristics for clipboard command execution lures, suggesting the user is prompted to run commands. The embedded URL points to a redirector, likely leading to a malicious payload download. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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=amharic+power+geez+free+download PDF link annotation
    • https://bijifejutumaxob.weebly.com/uploads/1/3/1/3/131381781/fc19550c95d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4394082/normal_5fe2e7c814e6e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413563/normal_5fca970b6ce81.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451039/normal_6037cda2ea3fa.pdfIn PDF document text
    • https://zefimaral.weebly.com/uploads/1/3/0/7/130776827/8e0b63cb9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391326/normal_5ff33096adb81.pdfIn PDF document text
    • https://mivezosikobo.weebly.com/uploads/1/3/1/4/131453246/914401902.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472764/normal_604649c355625.pdfIn PDF document text
    • https://wubinuju.weebly.com/uploads/1/3/4/6/134642725/ad3f105.pdfIn PDF document text
    • http://www.typoland.com/http://www.typoland.com/designers/Lukasz_Dziedzic/CopyrightIn PDF document text
    • http://www.typoland.com/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ce9fa3f-e6cb-4b17-866c-0307802acef8/the_shadow_rising_robert_jordan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36d39845-c984-42b4-a207-1682158324d1/tunuxunim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c59d366-f337-46e4-ac5d-ab70ab6b768f/96667669382.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d5a2a00-43dd-460a-976e-27b61efb9739/lord_of_the_rings_return_of_the_king_extended_version_length.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/63095c96-4a55-4b96-8bf4-ef7780d4f3dd/how_to_make_a_hexaflexagon_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b2a52c7-4fe8-4831-a559-fd8f2c29e2cb/federalists_and_anti_federalists_worksheet_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20cdc1ef-711f-4d5d-8186-d0cf62a0062d/platicas_prebautismales_en_guadalajara.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/503989f4-6f02-4cef-acf6-a0114ed3be0b/oracle_19c_v_views.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c29ac49f-dd62-461b-a5b0-3261bbf851f7/sifivowe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cd8d2b6-fde3-4e81-9148-6e59578ee5ec/bhagavad_gita_quotes_in_english_wallpapers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0fa9995a-4b7f-4f1b-97f8-ddfcc247a6bf/bissell_proheat_2x_revolution_pet_pro_1986_vs_1964.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aba5f1e3-a89f-41bb-b0c9-19bb0c2ba301/befuxijizes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0f6a273-28e7-48da-be74-648b3a1d30d7/briggs_and_stratton_450_oil_drain.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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_off000212fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x212FA 11916 bytes
SHA-256: fe2a58d0170380cef318cdcc9205513acbb8bfb572e0dc8496ef44241c1b1669
font_01_sfnt_off000232e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x232E7 6168 bytes
SHA-256: 50bd8db5ff9a0f03ea6ac0366ab4ff273dceb6ff0c6101ac0faff1fd52ccc92d
font_02_sfnt_off00024289.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24289 5524 bytes
SHA-256: 20ce41325981b2201212d9676a2e7295a557093c442c62e7313393c0b55a297d
font_03_sfnt_off00025542.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25542 13708 bytes
SHA-256: 88a0cbc16974f6983fcc749350452d3db138f8ee14a8683da51a0b17b0eece34
font_04_sfnt_off00028306.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28306 16408 bytes
SHA-256: 231c0a899c024ad7a5a2e3ebdb881a6a103e100854ceec453a8bcd4e62f5daf4