Malicious PDF — malware analysis report

Static analysis result for SHA-256 50205642db5d6edc…

MALICIOUS

PDF

45.1 KB Created: 2020-08-05 08:08:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6755068215e1d2878531dded4ee5d78a SHA-1: f6324007ea28a3a57cd7e5671783350db8097eb2 SHA-256: 50205642db5d6edcbb84ad01dfa7872e4acd8f2e87ecdac9be45487e2bf24a58
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains numerous links, masquerading as a Bosch dishwasher installation manual, to a malicious redirector hosted on ttraff.com. This suggests a phishing or scam attempt designed to trick users into clicking the link. The presence of a link farm heuristic further supports the malicious intent of distributing links to potentially harmful content. No scripts were extracted from this sample.

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=bosch+dishwasher+installation+manual+pdf
    • http://files.chstheatrearts.org/uploads/1/3/1/3/131382148/6059108.pdf
    • http://files.salonsuitesjessica.com/uploads/1/3/2/6/132696323/tezugi.pdf
    • http://pifetum.rosillosonestopplaza.com/uploads/1/3/0/7/130776031/gokar.pdf
    • http://files.100percentcajun.com/uploads/1/3/1/4/131452824/gaxavanurajejog.pdf
    • http://files.stepsintospace.com/uploads/1/3/1/3/131383743/1ecc706d14bb2f.pdf
    • https://cdn.shopify.com/s/files/1/0431/3989/1357/files/70423756493.pdf
    • https://cdn.shopify.com/s/files/1/0435/9805/3539/files/career_paths_medical_english.pdf
    • https://cdn.shopify.com/s/files/1/0432/0333/0208/files/rogukufibu.pdf
    • https://cdn.shopify.com/s/files/1/0437/9800/3874/files/81774689690.pdf
    • https://cdn.shopify.com/s/files/1/0430/3850/7169/files/30966623217.pdf
    • https://cdn.shopify.com/s/files/1/0438/4597/6224/files/19062118549.pdf
    • https://cdn.shopify.com/s/files/1/0432/3203/4980/files/fred_and_theresa_holtzclaw_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0431/4995/1138/files/24883148659.pdf
    • https://cdn.shopify.com/s/files/1/0433/5943/6951/files/windows_10_host_file.pdf
    • https://cdn.shopify.com/s/files/1/0433/8070/3382/files/61312660106.pdf
    • https://cdn.shopify.com/s/files/1/0429/0392/8991/files/u_con_dieresis.pdf
    • https://cdn.shopify.com/s/files/1/0433/4393/7690/files/22003688564.pdf
    • https://cdn.shopify.com/s/files/1/0435/4605/0728/files/22321408934.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007354.bin
5722c1b3c1784c85f086599c32e68cd49e8b56bc0d1cfad75e683902d0b6d4d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7354 5536 bytes
font_01_sfnt_off00008612.bin
7d41a608700f322067b741c44f65c039cdcb792531b6b9a945c1787ec42a20c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8612 9732 bytes

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