Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2f64896835d3ee5…

MALICIOUS

PDF

41.9 KB Created: 2020-08-23 10:11:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c884b39157bd95250cf2b4564af2d13 SHA-1: e29547d56efb7a0d62ba98836f5f06012638551f SHA-256: c2f64896835d3ee56d6e9c8349905baaf91a7efd7cccf54118351d221c86e805
128 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Maine mandated reporter law' and includes the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a link farm and a redirector indicates an attempt to obscure the final malicious destination and potentially distribute further malicious content.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.ru/pify?keyword=maine+mandated+reporter+law
    • http://dezis.pineyflatsumconline.org/uploads/1/3/1/6/131606289/ac2a6563a4329.pdf
    • http://digoba.indigoacresfarm.com/uploads/1/3/1/8/131856143/toxoworelodi.pdf
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/kodowivumezone.pdf
    • https://cdn.shopify.com/s/files/1/0434/5056/4773/files/52767110450.pdf
    • https://cdn.shopify.com/s/files/1/0433/6890/6906/files/gym_programme_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/43825455609.pdf
    • https://cdn.shopify.com/s/files/1/0431/1570/8580/files/56636024455.pdf
    • https://cdn.shopify.com/s/files/1/0438/0013/3793/files/netflix_error_10000.pdf
    • https://cdn.shopify.com/s/files/1/0428/6365/7119/files/14111189084.pdf
    • https://cdn.shopify.com/s/files/1/0432/5300/6494/files/lawatuxul.pdf
    • https://cdn.shopify.com/s/files/1/0431/3061/8011/files/remejopubetofejon.pdf
    • https://cdn.shopify.com/s/files/1/0429/0645/2127/files/5660369355.pdf
    • https://cdn.shopify.com/s/files/1/0435/4942/5823/files/reliability_availability_maintainability_and_safety_assessment.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_off0000661c.bin
78a7f6b0aa4ffbf0c34cba415e4a845a20dd91d955ff6b8fd30dff8ef787bdd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x661C 5024 bytes
font_01_sfnt_off00007728.bin
629846518a33bd41537846af8fe2840d93a65633d70886b0b829a628cc8d5902
pdf-font-stream PDF embedded font (sfnt) at offset 0x7728 10564 bytes