Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bebe2e80b566887…

MALICIOUS

PDF

83.6 KB Created: 2020-08-15 19:41:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba68ae501f6223ee20281a4b8e06de5d SHA-1: 9c3111cd9e410229a893d4867198881480455a4f SHA-256: 7bebe2e80b566887453d9e76c19bc5391aacfa7ef3ba4bceddf9f92cbc2a1422
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.cc/wb?keyword=json%20tutorial%20python%20pdf, which is likely used to redirect users to a phishing or malware-hosting site. The document body, though heavily obfuscated, contains references to 'Json tutorial python pdf' and the authoring application 'wkhtmltopdf', suggesting a lure to disguise malicious intent. No scripts were extracted, limiting the analysis of direct execution.

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.
  • 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.
  • 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.cc/wb?keyword=json%20tutorial%20python%20pdf
    • http://files.simplyexplore.ca/uploads/1/3/1/0/131071298/fonupoxato.pdf
    • http://nijizebe.writerunblocked.net/uploads/1/3/2/6/132682989/1639269.pdf
    • http://files.mosaicdownsyndrome.com/uploads/1/3/1/4/131407424/77c7ea3cbcfbc4.pdf
    • http://volilej.shoktoberfest.com/uploads/1/3/2/6/132680813/8184288.pdf
    • http://files.shinyaxe.net/uploads/1/3/2/7/132740343/7506111.pdf
    • https://cdn.shopify.com/s/files/1/0434/6626/0642/files/73550917580.pdf
    • https://cdn.shopify.com/s/files/1/0432/1479/9012/files/nota_pendidikan_agama_islam_tingkatan_5.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/weather_radar_syracuse_ny.pdf
    • https://cdn.shopify.com/s/files/1/0429/9233/7059/files/mevafexi.pdf
    • https://cdn.shopify.com/s/files/1/0434/3247/6838/files/tuned_amplifiers.pdf
    • https://cdn.shopify.com/s/files/1/0429/5367/0822/files/pdf_file_reader_apk_app_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dijev.pdf
    • https://cdn.shopify.com/s/files/1/0432/3550/8387/files/9th_class_biology_book_in_english_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/5216/2462/files/putixegivuseleb.pdf
    • https://cdn.shopify.com/s/files/1/0437/8856/6677/files/compellent_sc8000_admin_guide.pdf
    • https://cdn.shopify.com/s/files/1/0447/9077/5965/files/narilojalewefusawes.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fb90.bin
d0a438c4cea87421fa708597962e59743247ddc64385f9f0a2f946e990ad29de
pdf-font-stream PDF embedded font (sfnt) at offset 0xFB90 4984 bytes
font_01_sfnt_off00010c69.bin
8c1b5c50741bf213e5058565ad3bd81d6ce012239fbd76284f380fec7a1355a4
pdf-font-stream PDF embedded font (sfnt) at offset 0x10C69 11852 bytes
font_02_sfnt_off00013343.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x13343 4324 bytes