Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ef704987736c050…

MALICIOUS

PDF

52.9 KB Created: 2020-10-29 05:19:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: bda2300c4cf3d0270deb35bb4f62760d SHA-1: 3df510db4e6f77f62154751930662593a1761902 SHA-256: 1ef704987736c050747c030eba053b392e580ef0f59dbe2c38c150afa9b5ccfe
224 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

This PDF document contains a large number of embedded links, many of which point to disposable hosting and redirector infrastructure, indicating a link farm designed for SEO manipulation or phishing. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' strongly suggests the document's content is intended to deceive users into believing they are involved in a lottery, prize, or parcel delivery scam, which is a common advance-fee fraud tactic. The primary malicious URL identified is https://ttraff.com/123?keyword=philips+universal+remote+cl035a+codes.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.
  • 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://ttraff.com/123?keyword=philips+universal+remote+cl035a+codes In PDF document text
    • https://sujajikozodes.weebly.com/uploads/1/3/1/3/131384638/9249274.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369524/normal_5f8d2ae764c83.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385647/normal_5f8d1983396e9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377909/normal_5f995d07b3927.pdfIn PDF document text
    • https://pumowurunumig.weebly.com/uploads/1/3/2/7/132740285/tutigimuxewovif.pdfIn PDF document text
    • https://vajibudutoneraz.weebly.com/uploads/1/3/4/3/134345344/4419589.pdfIn PDF document text
    • https://fevuxutub.weebly.com/uploads/1/3/4/1/134131759/kedoka-bovidevabanurid-vulubaneroli.pdfIn PDF document text
    • https://zekuwatifakaxi.weebly.com/uploads/1/3/2/8/132815855/wemadulunebuwawoloko.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/1cf22.pdfIn PDF document text
    • https://latijazaw.weebly.com/uploads/1/3/4/3/134312978/796201.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/25201554-dcc4-4647-ba56-0d3dcdccca5e/69417198847.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7077424-cbf2-43c8-9a7c-3d10ac315ec6/81667613798.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4af28f32-2736-4680-882f-2dcf315d6585/32807666011.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/377f43b3-361e-4b5b-892d-a7167dc16816/viwix.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/73902232422.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/42036475026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/1619/1639/files/95042851985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3117/4043/files/daddy_by_sylvia_plath_shmoop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/7557/1364/files/rovupuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9181/0717/files/zingbox_manga_latest_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9a832d7-b1ae-45e6-a0c5-875821981944/bolimewawefi.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/44008701810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0490/4409/5153/files/bawijovoxegek.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008d25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D25 5804 bytes
SHA-256: ad4512767bb5f45ddd7b326eb3d301cbd6e77109ade153458406fa8d68558642
font_01_sfnt_off0000a0c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0C1 10912 bytes
SHA-256: 31f8a023a9b8578c030c3a44433a55ff24e4ed3fbb947be580c202a23cbde79e

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