Malicious PDF — malware analysis report

Static analysis result for SHA-256 5942639913513368…

MALICIOUS

PDF

43.1 KB Created: 2020-08-21 19:01:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49c7653fa97027dcda412186ccf96a97 SHA-1: 63d3d3e911b5744954eb34409d5cd66879a2ca34 SHA-256: 5942639913513368e8307006fbe4bfd950c0acd7ce6f8abd0a0aea729f9e48af
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL. The primary attack pattern involves luring the user to click the malicious link, which likely leads to a phishing page or malware download.

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=sample+background+check+release+form
    • http://lowora.drjenniferawe.com/uploads/1/3/1/6/131636825/a7e2474e9b95d.pdf
    • http://files.battlecomicsllc.net/uploads/1/3/0/8/130815664/wazaniro_rezoxirok_tenot.pdf
    • http://files.bjaycooper.com/uploads/1/3/1/0/131070051/8790580.pdf
    • http://files.trevorhook.co/uploads/1/3/0/9/130969772/luxitobokoton.pdf
    • https://cdn.shopify.com/s/files/1/0434/0924/4317/files/35065451074.pdf
    • https://cdn.shopify.com/s/files/1/0429/8421/0583/files/kugete.pdf
    • https://cdn.shopify.com/s/files/1/0431/9746/4731/files/42139810624.pdf
    • https://cdn.shopify.com/s/files/1/0432/0421/4942/files/jumupusulidefuf.pdf
    • https://cdn.shopify.com/s/files/1/0440/2423/4149/files/utorrent_pro_crack_apk.pdf
    • https://cdn.shopify.com/s/files/1/0438/1668/1629/files/numerical_analysis_8th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0430/3002/0247/files/25087237819.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58085676994.pdf
    • https://cdn.shopify.com/s/files/1/0437/3292/6615/files/structural_steel_design_5th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0431/1141/5959/files/doviwudobafo.pdf
    • https://cdn.shopify.com/s/files/1/0431/8127/7342/files/payment_terms_and_conditions_sample.pdf
    • https://cdn.shopify.com/s/files/1/0429/2280/3366/files/33628973845.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_off00006929.bin
4e1ecfa5d4851b6a968007f350f5900a9c0f22a200c24ba02a188fb97209fefb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6929 5876 bytes
font_01_sfnt_off00007cf4.bin
d0a8f1e623f8db6366abbe83dde4e79bd0373550781a4bebd6ff3df056f0fe31		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF4 10136 bytes

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