Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e358a8b17c6daa0…

MALICIOUS

PDF

38.4 KB Created: 2020-11-01 15:55:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: fdc8c154a12414617d549e828dacf5d6 SHA-1: c9f9b465e90237738a623d3ca98e51cdc04131a4 SHA-256: 7e358a8b17c6daa0583721413de5182581d3bda53bf7cfe7d0741d81087d5506
94 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by an ML classifier and contains a link to a known malicious redirector. The embedded URL, 'https://ttraff.link/123?keyword=the+practice+of+statistics+4th+edition+ap+pdf', is presented in a way that suggests it leads to an academic PDF, but it is instead a redirector to a malicious site. No scripts were extracted, but the presence of a malicious redirector strongly indicates an attempt to lead the user to a harmful destination, likely for phishing or malware delivery.

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.link/123?keyword=the+practice+of+statistics+4th+edition+ap+pdf In 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://cdn.shopify.com/s/files/1/0266/9160/0568/files/trigonomtrie_terminale_s_cours.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c211643-c2df-49b4-b6d3-45759d3db41b/9623095695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3756/4839/files/86162884766.pdfIn PDF document text
    • https://s3.amazonaws.com/dejolavubukugeb/81863226453.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/xelukupanekegopuza.pdfIn PDF document text
    • https://s3.amazonaws.com/megodipewukitoj/15535540690.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/528061c2-dc00-428a-94ee-14b22b3f53b3/kavajibe.pdfIn PDF document text
    • https://s3.amazonaws.com/nawosineromigi/deled_assignment_506_answer_in_hindi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30995365-4167-4b3f-a5b7-60aa901f3438/43339405407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2302/2752/files/los_angeles_crimes_apk_son_srm.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a40965ee-b949-4db2-81eb-6578cb023781/31728697732.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c46fbd47-0bd8-4311-82a3-78280d2516ca/zinazenef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10ccb8af-6098-46f9-9fe6-4094c6f7a254/jijovizilomesasonuku.pdfIn PDF document text
    • https://s3.amazonaws.com/bunobu/novaratogekixexuzo.pdfIn PDF document text
    • https://s3.amazonaws.com/zinudipir/xabotebigodin.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_off00004b45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B45 5036 bytes
SHA-256: 7d3bf588a39917e03b76b7c127f61d65ab64d7ec941dafcabbc86860c3ed6612
font_01_sfnt_off00005c53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C53 9996 bytes
SHA-256: 7064af7c3c2530366d995af1072fa0b4d4c9ee6bfc0dd20abf21df5be2fb3535
font_02_sfnt_off00007df4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DF4 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

Open this report in the interactive analyzer, or submit your own file for analysis.