Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2d3b99300ecedfa…

MALICIOUS

PDF

42.4 KB Created: 2020-08-18 16:40:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f82c5ca32f7f3b6f050b051ca4da1e8 SHA-1: e465e5a220a5a53f1100136356fd7d77c2df0de0 SHA-256: b2d3b99300ecedfa0e96d291d631d540397495af7c5d0c706e1760e5e13b4823
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The primary malicious URL is https://ttraff.cc/pify?keyword=harmony+engine+evo+full. The document body, though heavily obfuscated, also contains this URL, suggesting it's the intended destination. The presence of a link farm heuristic further indicates a malicious intent to distribute or redirect users. 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.cc/pify?keyword=harmony+engine+evo+full
    • http://files.hoawindemere.com/uploads/1/3/1/3/131398084/765fc108.pdf
    • http://files.elliesmart.com/uploads/1/3/1/4/131454501/sorinivogek-xifesox-tijiwasebus.pdf
    • http://balisupaz.palaceofcuriosities.com/uploads/1/3/0/7/130776031/5b578a9890.pdf
    • http://dunivof.fullcirclewellnessretreats.com/uploads/1/3/1/8/131856907/81aedc93873d.pdf
    • http://files.baytutoringnz.com/uploads/1/3/1/4/131437299/9355977.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/54549449754.pdf
    • https://cdn.shopify.com/s/files/1/0451/0354/6533/files/ejercicios_resueltos_de_absorbancia_y_transmitancia.pdf
    • https://cdn.shopify.com/s/files/1/0440/6195/0117/files/42191090616.pdf
    • https://cdn.shopify.com/s/files/1/0433/1008/8357/files/25336465761.pdf
    • https://cdn.shopify.com/s/files/1/0435/2665/2055/files/geometric_706_font_family_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/5556/2398/files/adding_and_subtracting_radicals_quiz.pdf
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/33117025264.pdf
    • https://cdn.shopify.com/s/files/1/0431/3281/3469/files/tojifewa.pdf
    • https://cdn.shopify.com/s/files/1/0433/6399/1717/files/xajasojenaleg.pdf
    • https://cdn.shopify.com/s/files/1/0430/4997/5959/files/xizurobuwa.pdf
    • https://cdn.shopify.com/s/files/1/0434/6278/7237/files/jezozavogisinepigesidap.pdf
    • https://cdn.shopify.com/s/files/1/0428/8793/8211/files/sabaximavudokof.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_off000068b0.bin
e2dae5f1a376e928e258a81f0f0fe5b7386b7cfe917a545164d13b43d78cdda3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68B0 5032 bytes
font_01_sfnt_off000079c8.bin
4cefa5f60e74e3cce9d65ed0a21a8b9ad1d5796868c038abe58a57eb4eddef52		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79C8 10192 bytes

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