Malicious PDF — malware analysis report

Static analysis result for SHA-256 edc096d78388623b…

MALICIOUS

PDF

40.2 KB Created: 2020-08-09 07:47:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ed952b5a256d74fe2d15dce26ea4ceb2 SHA-1: 3c9ae3aceb22fab3f7f308a474a3de744360a998 SHA-256: edc096d78388623b24479155e502b3112fd1506e870ea1650d53950ab78ef895
142 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text fragments that, combined with the heuristic firings, suggest a lure for a fake iPhone offer. The primary malicious URL identified is ttraff.com, which is used to redirect users to potentially harmful content. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=iphone+quartz+pdfcontext
    • http://files.farmsourceco.com/uploads/1/3/0/7/130776661/zuwagiwujivusa.pdf
    • http://files.transcultural-care.com/uploads/1/3/2/7/132740275/222565.pdf
    • http://files.texler.org/uploads/1/3/2/6/132681392/43451e289b9b4.pdf
    • https://cdn.shopify.com/s/files/1/0429/1844/5223/files/28422758285.pdf
    • https://cdn.shopify.com/s/files/1/0429/1110/5183/files/7th_edition_dark_angels_codex.pdf
    • https://cdn.shopify.com/s/files/1/0431/2412/9952/files/33405686000.pdf
    • https://cdn.shopify.com/s/files/1/0434/1478/2104/files/como_ligar_por_whatsapp_libro.pdf
    • https://cdn.shopify.com/s/files/1/0435/0106/0262/files/78328737907.pdf
    • https://cdn.shopify.com/s/files/1/0433/1077/6478/files/cervical_spine_range_of_motion_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0433/6641/6549/files/nasetuwinovupezesilutu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6183/0037/files/13834516910.pdf
    • https://cdn.shopify.com/s/files/1/0441/3744/7576/files/how_to_cook_crack_cocaine.pdf
    • https://cdn.shopify.com/s/files/1/0437/0399/2485/files/teporipefazolager.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pizejop.pdf
    • https://cdn.shopify.com/s/files/1/0434/9437/5576/files/warowurubewi.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_off0000614d.bin
7279f5870ee48f21eacbcfc0dce3e5941002ecb7701c8ebca6ae5f743a01a15f
pdf-font-stream PDF embedded font (sfnt) at offset 0x614D 5216 bytes
font_01_sfnt_off00007315.bin
2c04bb5144808bb440726c8d312d6d0813696e0669e22742e55cf36fa73138dc
pdf-font-stream PDF embedded font (sfnt) at offset 0x7315 9600 bytes