Malicious PDF — malware analysis report

Static analysis result for SHA-256 05d95181615dc93e…

MALICIOUS

PDF

94.7 KB Created: 2021-05-27 22:24:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e8f40966637fa193b68dd84e46d64f62 SHA-1: 72ef4a4f298a0e9fec0b16153946337e186515cd SHA-256: 05d95181615dc93e0fdc54c7c8bbef0db483f9ae2422599c64fb74d75656f7fe
186 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, contains keywords related to movie downloads, likely serving as a lure to trick users into visiting these malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://midufefew.ru/strik?utm_term=bharat+movie+download+filmywap+openload PDF link annotation
    • https://xesupolapiban.weebly.com/uploads/1/3/4/5/134586318/xunewaga_vutizurisasos_dimasogufemoxan_xuridexur.pdfIn PDF document text
    • https://manabaxijex.weebly.com/uploads/1/3/4/6/134626004/1a65d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366048/normal_600fbc5ac42f0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377114/normal_6007b49b875ee.pdfIn PDF document text
    • https://nozezezolakufu.weebly.com/uploads/1/3/2/6/132695232/nukumevakevubawetun.pdfIn PDF document text
    • https://lenagalazipanom.weebly.com/uploads/1/3/5/3/135310064/fonoputebemewe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495525/normal_60614e6b72a0c.pdfIn PDF document text
    • https://moxiwomalupul.weebly.com/uploads/1/3/4/5/134598527/6334793.pdfIn PDF document text
    • https://kutepuwabaluv.weebly.com/uploads/1/3/2/6/132681670/727456d.pdfIn PDF document text
    • https://lufokozu.weebly.com/uploads/1/3/4/7/134755413/fumuraduwilepuwase.pdfIn PDF document text
    • https://xixinuwomisit.weebly.com/uploads/1/3/1/4/131437484/zizasex.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470977/normal_5fdc6c3740fa4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449184/normal_600d058d665b1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478933/normal_601da0ec56ba7.pdfIn PDF document text
    • https://pejirudofatepo.weebly.com/uploads/1/3/4/6/134648176/zosomapufe.pdfIn PDF document text
    • https://bumozirejukije.weebly.com/uploads/1/3/5/3/135340746/sevafurupobin.pdfIn 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/b2cb5ddb-b84f-407e-a77e-aba962db05eb/stihl_chainsaw_025_parts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c956e69-18d1-4a8d-9511-34c6e0d61c95/62708582574.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/617880c8-80fa-4f3c-b960-7c4bade7225d/ar_15_illustrated_parts_breakdown.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/280aa127-d2ae-4285-bfe3-77dbb1f42095/black_and_decker_mini_fridge_with_freezer_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01b636e6-f986-4571-9348-30bb2fc99dc9/final_fantasy_13_strategy_guide.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
    • 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_off00010353.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10353 2988 bytes
SHA-256: b71d8029357f2f18867428fb761871f87631fccb4a1b3d90c1b97ec8871bbbdd
font_01_sfnt_off00010e04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E04 5404 bytes
SHA-256: c221642a7deaae6a65649f7ef787d08306b7216fdd8f4655b3052ce4de13ddd6
font_02_sfnt_off00012056.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12056 1936 bytes
SHA-256: 7420db9ec41012b263dff8e0d039d2a895961a6b4c1647eabbcd20f441fad98a
font_03_sfnt_off0001299d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1299D 12876 bytes
SHA-256: ce6cc7a308fd67ac51c0d0f964d302cc420676e27a34ca0ba0145f0db853bc90
font_04_sfnt_off000154c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x154C8 16344 bytes
SHA-256: eee7a9862df105bb2dd950775d14175a22cdec7fb592741dc520641e2fb1eaee