Malicious PDF — malware analysis report

Static analysis result for SHA-256 f80f6e1e58fcbde1…

MALICIOUS

PDF

82.0 KB Created: 2020-12-05 14:05:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: ced5883053c6c6a7811fa30cf91ff3cc SHA-1: d64e4367ad762a20289f852bca92fce0a1dd519a SHA-256: f80f6e1e58fcbde1d414101f94f7e48e4e85ca146be14611345eb08cbb0c3a57
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafftec.ru/aws?utm_term=ardaas+punjabi+movie+all+songs PDF link annotation
    • https://dobekaveliwe.weebly.com/uploads/1/3/4/5/134599348/4265111.pdfIn PDF document text
    • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/mobaso.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/38840728-437a-4cd9-941b-eaf1790e5c26/23415059155.pdfIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/muviliwab.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0bebbcd1e280355d37542/t/5fc186667acac6192afa9140/1606518375101/ludovisi_battle_sarcophagus_khan.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5d95bbdb33045eee4110e/t/5fcacd9136758319a544fd35/1607126417308/42251421266.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0187aa5bc066edfa15e28/t/5fc49631145a8629dc42f70c/1606719028676/muvidoliganiwepu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c90f9072-37f9-41ae-b5d9-21e2e804a0a5/86677217540.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0dfe77d0c8f249d40ab54/t/5fc2cfdf6457125654996a11/1606602719816/walker_county_schools_landing_page.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/alleyway_game_boy_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7839f5d-5edb-4303-ba7b-54b0f6dfb2fd/zomogeluvajelubutebivoref.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf5278cb11b25c09b2f32/1606219049333/aashto_flexible_pavement_design_nomograph.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4deb088c99b6d37c0af76/t/5fc5226f3c6ccf69f3032c1f/1606754929017/wolfram_alpha_apkpure.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd07d472f8b574a0f4ca41/1606223829279/hatchet_chapter_questions_and_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f57f2f9-2847-4485-a8e5-e35a0b9383e3/92392519772.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4b627acac6192ab6fde0/1606372195324/vatulivoxafumivajon.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_off0000f4f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4F4 5344 bytes
SHA-256: 5e63dd32f0b70a9b9101d65d92afd56a75607967c5ebf4e31bae15c18e3fd943
font_01_sfnt_off00010702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10702 11284 bytes
SHA-256: 0acab702bbbe72f8653a6bc2ebd8026ddd21adb731e3360560a1f071c427dada
font_02_sfnt_off00012d12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D12 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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