Malicious PDF — malware analysis report

Static analysis result for SHA-256 850ba6a1030e53d3…

MALICIOUS

PDF

42.7 KB Created: 2020-08-14 15:47:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: adfb80ec93fe1abf740d3ca50c1fb159 SHA-1: 825bd674138c52cbf3bf319b6ae0c11f87af11e0 SHA-256: 850ba6a1030e53d331f22457a22bd595d01d2554faba7a3e6fafa496ceed231d
160 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one pointing to a known malicious redirector. The document body text, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=aadhar+card+application+form+gujarati', suggesting a lure related to official forms. The heuristic 'SE_MFA_LURE' indicates the document is designed to harvest credentials or abuse multi-factor authentication. The presence of numerous links hosted on Shopify, while some are benign, suggests a link farm used to obscure the malicious redirector.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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=aadhar+card+application+form+gujarati
    • http://files.patriciacarriganartist.com/uploads/1/3/0/8/130874360/fojezufebegekagad.pdf
    • http://files.medishfoods.co.uk/uploads/1/3/1/3/131379396/a284a804.pdf
    • http://bineno.walkingwithieke.com/uploads/1/3/0/8/130814328/pedutezozifoduvusapa.pdf
    • http://fipemo.daleismopeners.com/uploads/1/3/0/7/130775971/8ff2365c77f.pdf
    • https://cdn.shopify.com/s/files/1/0431/0610/7552/files/79763747428.pdf
    • https://cdn.shopify.com/s/files/1/0433/5969/9109/files/lawepap.pdf
    • https://cdn.shopify.com/s/files/1/0433/0458/3318/files/convert_binary_to_decimal_python.pdf
    • https://cdn.shopify.com/s/files/1/0432/4638/7362/files/gataziserodujoboj.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73633131036.pdf
    • https://cdn.shopify.com/s/files/1/0432/7030/7995/files/vilip.pdf
    • https://cdn.shopify.com/s/files/1/0432/9173/8277/files/23154056507.pdf
    • https://cdn.shopify.com/s/files/1/0435/8039/1585/files/bifab.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99324429390.pdf
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/14546636616.pdf
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/intertherm_water_heater.pdf
    • https://cdn.shopify.com/s/files/1/0432/6191/9396/files/vofedikusozotejo.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/
    • https://cdn.shopify.com/s/files/1/0428/9

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006976.bin
f065c881379ea50298fb39526ba5bc49f0b2d98acc18bd03676fbecf529d0aa3
pdf-font-stream PDF embedded font (sfnt) at offset 0x6976 5456 bytes
font_01_sfnt_off00007bd0.bin
a7eed57e2f79573cbd57adfda7cea401273971bb1af1561f1b64b0d49b83dff0
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BD0 9852 bytes