Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a06515269a03a53…

MALICIOUS

PDF

47.6 KB Created: 2020-07-30 14:26:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6daad262dce8b9b78b5ea824c558d4b3 SHA-1: 988d04aa08459c6efb2483f7c954159f167b6f1f SHA-256: 4a06515269a03a5357d6f37fa0748dea089905ad3e0b02f1ba9b82db0a3c94e1
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, suggests a lure related to 'The black book african american history pdf'. The primary attack vector appears to be directing users to malicious external sites via these links.

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=the+black+book+african+american+history+pdf
    • http://files.thehungrydreamer.com/uploads/1/3/1/8/131871864/bagejeramodufuxub.pdf
    • http://files.larienca.net/uploads/1/3/1/4/131437725/sanazuri.pdf
    • http://files.1divashop.com/uploads/1/3/0/8/130814172/4832978.pdf
    • http://files.kyammo.com/uploads/1/3/2/6/132680808/mogefadomij-xisiferiwidaxo-kivojadene.pdf
    • http://files.kyammo.com/uploads/1/3/2/6/132680808/mogefadomij-xisiferiwida
    • https://cdn.shopify.com/s/files/1/0439/0410/6651/files/74091342667.pdf
    • https://cdn.shopify.com/s/files/1/0435/2222/8379/files/25932452785.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/581871399.pdf
    • https://cdn.shopify.com/s/files/1/0431/8229/3141/files/21234618255.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94766401197.pdf
    • https://cdn.shopify.com/s/files/1/0433/9315/5235/files/vemanaxabotumovedi.pdf
    • https://cdn.shopify.com/s/files/1/0440/8947/5237/files/rotugu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9306/5877/files/632677328.pdf
    • https://cdn.shopify.com/s/files/1/0429/3342/0195/files/vefana.pdf
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/31371375015.pdf
    • https://cdn.shopify.com/s/files/1/0428/0690/2950/files/pugobiposikodilo.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_off00007bb5.bin
71c1e63602ab904952d96a35d9560eacb3a07d758460fbdce60f0f1941e8a80a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB5 5436 bytes
font_01_sfnt_off00008dfc.bin
7ae6953814afd45fb4cb025b3dd58908ab366ba32366a4074f7f67d83b6ce657		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DFC 10256 bytes

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