Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ab6c98bc96a1d74…

MALICIOUS

PDF

77.1 KB Created: 2020-08-05 18:04:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a17c64481465e6c8b9dd546a2df3d5ec SHA-1: dba70f6875c6259fa658d5a8cee119d678ab8698 SHA-256: 3ab6c98bc96a1d74977833d563eb2794cb08b81d0910c6240150fb4090343946
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is ttraff.com, which is likely used to funnel users to further malicious content. The document body, though heavily obfuscated, contains references to the malicious URL and other benign-looking PDF links, suggesting a link farm or redirection tactic. No scripts were extracted, but the PDF structure and heuristics strongly indicate a malicious redirection 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.
  • 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=bestimmter+artikel+pdf
    • http://rafus.welovejones.com/uploads/1/3/0/8/130874478/32da8b.pdf
    • http://madema.majorkeys.org/uploads/1/3/2/7/132710797/megogoliv_tuvixupota.pdf
    • http://files.juiceboxfloresville.com/uploads/1/3/0/7/130775380/1383912.pdf
    • https://cdn.shopify.com/s/files/1/0435/6872/6171/files/cal_me_a_spaceman.pdf
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/baby_boy_names_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0429/2008/3612/files/51819046968.pdf
    • https://cdn.shopify.com/s/files/1/0438/7520/5288/files/xalupowobajozewet.pdf
    • https://cdn.shopify.com/s/files/1/0428/2492/5340/files/jeroxediguwol.pdf
    • https://cdn.shopify.com/s/files/1/0434/4479/7607/files/autocad_to_converter_for_windows_7.pdf
    • https://cdn.shopify.com/s/files/1/0437/4737/7301/files/brain_vision_analyzer_2_manual.pdf
    • https://cdn.shopify.com/s/files/1/0440/0214/8510/files/auto_keyboard_clicker.pdf
    • https://cdn.shopify.com/s/files/1/0428/8161/3987/files/bentham_utilitarianism.pdf
    • https://cdn.shopify.com/s/files/1/0432/5723/3576/files/70876908218.pdf
    • https://cdn.shopify.com/s/files/1/0428/6365/7119/files/98420968471.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/26450283228.pdf
    • https://cdn.shopify.com/s/files/1/0429/6556/5589/files/vulidifozivujoz.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c1d6.bin
8c94dd8ba060c8e144837a92cc06e195ba7ad74051eb81afa89b9f73181dc4a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC1D6 6424 bytes
font_01_sfnt_off0000d762.bin
db85b7f6645964c54dce28558460c6793eecee734a188903813d94a1c48fd1f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD762 5300 bytes
font_02_sfnt_off0000e952.bin
7407a424c214505b468ac22cf61d721b26250cc6ba48783d2910c6ce65168cae		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE952 11336 bytes
font_03_sfnt_off00010e93.bin
96abf0b0a174f79aec5c3bdbcea496e415f457c8b9e33a82bd9166a55a1cf219		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E93 16580 bytes

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