Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f24a3ce78c17bdd…

MALICIOUS

PDF

41.4 KB Created: 2020-08-27 21:08:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b03c961016cdd26b2241622ea3921c67 SHA-1: a0b843da02c9e774d9274ea1c8b05add975fd96d SHA-256: 2f24a3ce78c17bddacc7d3eb9f4acb1d6c0048cb5b96b7e5ae152e62c9abba85
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by multiple critical heuristics for containing a malicious redirector link and a large number of embedded links, indicating a link farm. The primary malicious URL identified is https://ttraff.com/pify?keyword=ranma+1%252F2+live+action+pelicula+completa+espa%25C3%25B1ol, which is likely used to redirect users to a malicious site. The document body contains garbled text and embedded URLs, further supporting the malicious intent.

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.
  • 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.com/pify?keyword=ranma+1%252F2+live+action+pelicula+completa+espa%25C3%25B1ol
    • http://files.lostacresresort.com/uploads/1/3/1/3/131379904/xavezaxulavusad-dugasag.pdf
    • http://japixefag.jarettfajardo.com/uploads/1/3/1/8/131856725/pejufod.pdf
    • http://files.stephanieclayman.com/uploads/1/3/0/7/130738752/5645462.pdf
    • http://files.katie-berger.com/uploads/1/3/1/6/131637190/e52816620e2.pdf
    • https://cdn.shopify.com/s/files/1/0431/4320/0929/files/autonomous_robots.pdf
    • https://cdn.shopify.com/s/files/1/0437/5920/6558/files/bullzip_printer_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/3449/9489/files/recruitment_process_steps_template.pdf
    • https://cdn.shopify.com/s/files/1/0431/4464/2716/files/59346068871.pdf
    • https://cdn.shopify.com/s/files/1/0438/0635/9713/files/18139185637.pdf
    • https://cdn.shopify.com/s/files/1/0469/0382/0450/files/360_defence_norwich_ct.pdf
    • https://cdn.shopify.com/s/files/1/0430/3519/7602/files/rpg_maker_mv_sprite.pdf
    • https://cdn.shopify.com/s/files/1/0436/0493/4818/files/namijezulavufusaromuneno.pdf
    • https://cdn.shopify.com/s/files/1/0431/7764/0092/files/grandfather_clock_movement_installation_instruction_manual.pdf
    • https://cdn.shopify.com/s/files/1/0438/6396/5861/files/6651926804.pdf
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/english_moral_stories_with_pictures.pdf
    • https://cdn.shopify.com/s/files/1/0434/4843/4844/files/18112988683.pdf
    • https://cdn.shopify.com/s/files/1/0460/3189/6740/files/philadelphia_movie_300mb.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_off00005466.bin
8e6961edc212db8f7509c387b3ea08706ef709a2f4eeb2e9a2d2c35300ac8fff
pdf-font-stream PDF embedded font (sfnt) at offset 0x5466 5480 bytes
font_01_sfnt_off000066cc.bin
b17c878e4389bc37131d23314004e051637468a2b9b6171fd873bbdc24766b0c
pdf-font-stream PDF embedded font (sfnt) at offset 0x66CC 2884 bytes
font_02_sfnt_off000072d6.bin
0ced405b864e37016789c09bc0a739ffa3dd6c984f1b4f9e78c9294fc0b31f7f
pdf-font-stream PDF embedded font (sfnt) at offset 0x72D6 10236 bytes