Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bab615ebafe5736…

MALICIOUS

PDF

43.3 KB Created: 2020-10-01 05:36:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: b09898eee4de72c32d4620d6fd933288 SHA-1: e6c18ec33a99083199fb7523f71cfef65c83fe87 SHA-256: 7bab615ebafe573635f88a1c414ffeda6e957f9070c2a043e84b9ba980816cb0
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL 'https://gettraff.ru/strik?keyword=addition+connectors+exercises+pdf' is identified as a malicious redirector. While no scripts were extracted, the ML classifier strongly flagged this PDF as malicious, suggesting a high likelihood of a phishing or malware delivery 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://gettraff.ru/strik?keyword=addition+connectors+exercises+pdf In PDF document text
    • http://files.easel-lab-mondal.com/uploads/1/3/1/3/131378780/6618228.pdfIn PDF document text
    • http://files.maevelynch.com/uploads/1/3/1/4/131437779/fazasi_gasaji_mivapopaxugo.pdfIn PDF document text
    • http://vafula.celebrationinmykitchen.com/uploads/1/3/1/4/131407408/takuvurerunasiwukiw.pdfIn PDF document text
    • http://files.farmmeetsfunction.com/uploads/1/3/0/7/130775649/f11c4422b0.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://cdn.shopify.com/s/files/1/0429/9161/6153/files/labitesofumifaligamumobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7341/3032/files/biguzetisofovimizer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1428/9568/files/grapher_equation_plotter_solver_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2935/4917/files/69690092188.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/801483da-ec19-4118-a9bc-67079b7ac8d9/4565532192.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bdb60111-d2d2-4959-92dc-79f7178dbaef/96926663080.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9beed2a-8b99-4f33-b2de-bf16d8a2b3bc/33700551209.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e32e4faf-2919-4f53-b6db-e659fbd1879f/90532000110.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11804d20-8e79-48ed-88d0-af5c15a32942/20780192080.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82c40678-e31b-44a0-993c-3bc835dd9754/95480860075.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86a37ab4-d9bd-4bb1-980a-e4c9d188bfd5/4488599929.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_off00005f9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F9B 4752 bytes
SHA-256: 5bcfe9f67d30258ef87a81a8031a754a16274affe5f7dee14ae2c1144b3699f1
font_01_sfnt_off00006fcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FCC 9992 bytes
SHA-256: 5ffe0dc0e397080c94f3153283f7993d4c526ece4f110935f2d11ca125866c1b
font_02_sfnt_off000091e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91E8 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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