Malicious PDF — malware analysis report

Static analysis result for SHA-256 45e96c6cde32fa0d…

MALICIOUS

PDF

36.6 KB Created: 2020-08-20 19:46:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68e2a683ee311b2795df95728dac0674 SHA-1: 1571e00097405d7039cf77b9e46c8b2e8fc82047 SHA-256: 45e96c6cde32fa0d8faa8e0934d38092598d11fcd215e334de46a19e546a9c7a
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which is also present in the document body. The document body text and embedded URLs suggest a lure related to 'online xml formatter and validator' to trick users into clicking the malicious link. The link redirects to 'ttraff.cc', known malicious infrastructure. 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.cc/pify?keyword=online+xml+formatter+and+validator
    • http://files.andremotuz.com/uploads/1/3/0/8/130814308/daa1563fd9.pdf
    • https://cdn.shopify.com/s/files/1/0436/3531/0752/files/cisco_catalyst_3650-_24ts-_s_datasheet.pdf
    • https://cdn.shopify.com/s/files/1/0435/0833/4751/files/85123946113.pdf
    • https://cdn.shopify.com/s/files/1/0429/9961/1553/files/fesixajosesagafupapagofov.pdf
    • https://cdn.shopify.com/s/files/1/0432/8331/6891/files/3027776480.pdf
    • https://cdn.shopify.com/s/files/1/0435/6849/6798/files/wupazet.pdf
    • https://cdn.shopify.com/s/files/1/0438/9067/1771/files/gomuxuwakor.pdf
    • https://cdn.shopify.com/s/files/1/0431/7950/7875/files/nugikodor.pdf
    • https://cdn.shopify.com/s/files/1/0429/2601/4620/files/80498502719.pdf
    • https://cdn.shopify.com/s/files/1/0446/9784/5913/files/akuapem_twi_bible.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004461.bin
edd6c62216db5a2412aeea6f0dc0c2272e3c3ca0c29d60c7ef058bc0264f63ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4461 4820 bytes
font_01_sfnt_off000054a7.bin
70530c507ff2923d7c762f0fafcdd2e90788180d3e2679c3f4c398b376eecb9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54A7 10276 bytes
font_02_sfnt_off000077cd.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77CD 4324 bytes

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