Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0f0908c7dc53436…

MALICIOUS

PDF

47.4 KB Created: 2020-10-12 12:00:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: bc0c2d2ae668b3701fe1e5ca141d8d35 SHA-1: e47b48a2d009d676d1549775355948c3b08f06e5 SHA-256: d0f0908c7dc5343605bdd656b595917bf39f42f23503eb302be28be5bfb320b0
94 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, disguised as an app download. The ML classifier and heuristic firings strongly indicate malicious intent. The embedded URL is the primary indicator of this phishing attempt.

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://cctraff.ru/strik?keyword=my+airtel+tv+app+download+apk In PDF document text
    • http://fanopiral.livingmagicentertainment.com/uploads/1/3/0/7/130738847/6560492.pdfIn PDF document text
    • http://files.ukogc.com/uploads/1/3/1/4/131437813/zegefumofa.pdfIn PDF document text
    • http://files.neonopen.com/uploads/1/3/1/4/131453695/fevexove.pdfIn PDF document text
    • https://site-1043167.mozfiles.com/files/1043167/82315945546.pdfIn PDF document text
    • https://site-1036872.mozfiles.com/files/1036872/6334391797.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/ba9c7321-a04a-4400-aba9-46e2a8bdcea3/bipemizepofetewunusosij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/467ee7ff-98ad-4693-b776-6e514abfe76a/64900724723.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9fcc9937-074a-4f64-a7f2-14126bab2de3/87562861962.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68e13305-1b11-442b-bd4a-b63db9c3a705/56541911654.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c24178b-7696-4f27-94ca-5e4eaf178ac3/42286606238.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2fa155b-ed27-4cd3-997c-82eb217ebf85/83371251577.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db652ec0-3045-430a-9896-499142cb221d/52949272898.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006253.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6253 4884 bytes
SHA-256: 34235eb0eceeb046c40b716fc22a27269e671ae7df2b61fc061a0663b14feb3e
font_01_sfnt_off0000730d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x730D 2268 bytes
SHA-256: 253c50839ac6626950ebb29913d4b50f84c7f91f95a3b3e9574581cbf972dee6
font_02_sfnt_off00007d6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D6C 10768 bytes
SHA-256: 442e9af4697860fbb139aaa792813c56c4689f7d8715b236c8278730fe97ffb9
font_03_sfnt_off0000a241.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA241 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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