Malicious PDF — malware analysis report

Static analysis result for SHA-256 0adcb0308233a304…

MALICIOUS

PDF

38.0 KB Created: 2020-10-31 06:01:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bcf731db083c1b3603f10a6736503401 SHA-1: ba129b5c96e4bf69caa7a8fef0ca21012cc66207 SHA-256: 0adcb0308233a3044c2b1f19477b24a7f96f78706dfa7cb1b14158c24c289480
94 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, which is a common tactic for phishing or malware distribution. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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.club/123?keyword=us+canada+map+with+states
    • https://cdn-cms.f-static.net/uploads/4367287/normal_5f8e561b562a8.pdf
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/misobefogurivo.pdf
    • https://cdn-cms.f-static.net/uploads/4370071/normal_5f9ca8f38889c.pdf
    • https://nabisipiguges.weebly.com/uploads/1/3/4/4/134432296/tinuselenebazu-lewoxa-dufasakixorikoz-kepemogunurinel.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/89b99322-46e8-45f7-80b9-34d04e1f0dda/xadaxaduletewebobadamowa.pdf
    • https://s3.amazonaws.com/pizexopenaxu/actuarial_mathematics_bowers_2nd_edition.pdf
    • https://uploads.strikinglycdn.com/files/6d58e6f6-ca53-49f3-ac6e-4cb7625119c9/wamusupokuzijavasaxifoxun.pdf
    • https://s3.amazonaws.com/retisovojor/lezatomibidunozefi.pdf
    • https://cdn.shopify.com/s/files/1/0495/9712/0676/files/applied_petroleum_reservoir_engineering_free_download.pdf
    • https://uploads.strikinglycdn.com/files/de6e39a6-80be-4cdc-ae98-a2de421b4bd9/lemaxunajonerafiwulobot.pdf
    • https://cdn.shopify.com/s/files/1/0484/2271/5550/files/wwe_2k14_season_pass_redeem_code.pdf
    • https://s3.amazonaws.com/zetare/mapuwe.pdf
    • https://s3.amazonaws.com/fezenur/arithmetic_algorithms.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000055a6.bin
22f4421f5ea471fa9477eb4bef20b6cf14a96d7991f737007147474d12efc26f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55A6 5268 bytes
font_01_sfnt_off00006786.bin
fc143399761a8721c6dd92c70bf931b7bdf44559539cd2988f1130f236bd559f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6786 10636 bytes

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