Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d70979992c14b68…

MALICIOUS

PDF

40.2 KB Created: 2020-08-08 22:44:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e5d0e1b93e79225ec89bd4f1731ea1b SHA-1: f0bf1a828382b9f1f4cc7fd201714cdd34be9e9c SHA-256: 9d70979992c14b688e21f21ed614c4f899588dcac2bf9d03de41acbce6fa0488
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting PDF files, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is likely the primary malicious payload delivery mechanism. The document body contains the text 'Cciso book pdf' and the malicious URL, reinforcing the lure. No scripts were extracted from this sample.

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=cciso+book+pdf
    • http://files.bluecanoedigital.com/uploads/1/3/1/8/131871864/jebagegadif-serudiwijevi-wolakuni-xubadovekiw.pdf
    • http://files.thermalthumbers.com/uploads/1/3/1/3/131380045/7a70229e0.pdf
    • http://files.urbannashville.com/uploads/1/3/1/6/131636927/jokomosetagesora.pdf
    • http://files.weefri.org/uploads/1/3/0/9/130969428/79dcd.pdf
    • https://cdn.shopify.com/s/files/1/0434/7337/1288/files/90799582123.pdf
    • https://cdn.shopify.com/s/files/1/0433/8548/7525/files/aperturas_de_ajedrez_con_negras.pdf
    • https://cdn.shopify.com/s/files/1/0427/6482/8839/files/sunedabogemapuzowagitij.pdf
    • https://cdn.shopify.com/s/files/1/0432/3350/9534/files/80346212261.pdf
    • https://cdn.shopify.com/s/files/1/0431/2114/8061/files/53769891797.pdf
    • https://cdn.shopify.com/s/files/1/0435/0250/2048/files/genonitan.pdf
    • https://cdn.shopify.com/s/files/1/0436/5520/0918/files/gastrostomy_care.pdf
    • https://cdn.shopify.com/s/files/1/0446/9918/9402/files/tamil_to_english_translation_sentences.pdf
    • https://cdn.shopify.com/s/files/1/0433/6071/4904/files/29698395830.pdf
    • https://cdn.shopify.com/s/files/1/0431/1423/4017/files/maworeb.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_off00005def.bin
9f322d6a20de205a02919c6fcd48035394a1fb86c18ffb7f4b8eaf10b772efea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DEF 4920 bytes
font_01_sfnt_off00006ec3.bin
3296540887b8a0d8cc44e4cedeb9765eb102d65c87e3ac59e6c1776e10d0892c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EC3 11164 bytes

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