Malicious PDF — malware analysis report

Static analysis result for SHA-256 032b096beb619fb3…

MALICIOUS

PDF

87.8 KB Created: 2021-05-30 16:52:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: a3f4ca3479c726d17d36f42e54a05a29 SHA-1: b75604de61927c9181570fd65b067c296b4942e4 SHA-256: 032b096beb619fb3dfc3dd51163d975b62e37f36c3d61ae0e46b98abb1f49c5b
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains a large number of external links, suggesting a link farm or phishing attempt. The embedded URLs likely lead to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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.
  • 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://crophysi.ru/strik?utm_term=why+does+my+wireless+charger+stop+working PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4384460/normal_5fdbd9bac5c70.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476767/normal_5fc812875f20d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406202/normal_60327947ab31c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393883/normal_602f95af0d0b5.pdfIn PDF document text
    • https://gawugabel.weebly.com/uploads/1/3/4/3/134361726/fujilivafonenaf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379859/normal_5fff4213a204d.pdfIn PDF document text
    • https://bimidupixujeg.weebly.com/uploads/1/3/4/3/134319160/909178.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410717/normal_5fdb91cd1b29c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368748/normal_5ff3e7b464693.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472763/normal_60600545c84f9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487631/normal_600a40711bbc8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483833/normal_5ffa3100ca651.pdfIn PDF document text
    • https://wexapifunoru.weebly.com/uploads/1/3/4/7/134715363/bitemazoni_ramikado_gavezobidozufit.pdfIn PDF document text
    • https://piwoweral.weebly.com/uploads/1/3/1/8/131856495/nawepojevagetaf-ravotowifatutar-futenatajuluw.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
    • https://uploads.strikinglycdn.com/files/15902f91-3ed0-426f-bbff-1a9f425d15a0/labasoxawabonogo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ab9b8a4-1668-4d32-9f0e-cc015ede6ba1/zusewenarapuden.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad602139-aa65-47ae-afb3-e54fc8631376/aeroccino_3_not_frothing_milk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e57c42a-455a-438e-960b-58cc4e0551a8/unearthed_arcana_5e_feats.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8218e5d7-d596-41e1-a2ec-7c9ebe9dab30/the_princess_bride_book_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49b92043-4d80-4ea3-afac-9721c69011af/zayf_asit_baz_dengesi_zml_sorular.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb418a84-2f69-4128-8cad-3071812f9283/65869426107.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de0b8fb6-0593-407f-a298-8ad66d25febc/why_would_my_firestick_remote_stop_working.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001059c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1059C 5544 bytes
SHA-256: e260a5e0952faaa1a5df9b3504a3148e94f134bac280ecaeec5c7a0fb2c812b7
font_01_sfnt_off0001186a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1186A 12100 bytes
SHA-256: e6ff89c5e9f26353581501bd3fcd345c5c296337ff16c6d6c5da289d0721f5c3
font_02_sfnt_off000141d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x141D9 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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