Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5e0468dfb7d1c9c…

MALICIOUS

PDF

42.6 KB Created: 2020-08-16 22:55:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55873c35d85c99d490406069f1f67a07 SHA-1: bb4e2854f6c68da1d3b3f7505d3cdfb9e2a57771 SHA-256: b5e0468dfb7d1c9c099eae9043cd24d540ea1e41f50e0f6637420b3fd397ecb8
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=free+jeopardy+game+powerpoint+template'. This URL is presented within the document body, disguised as a free Jeopardy game template. The file also contains a PDF link farm heuristic, indicating a large number of outbound links, many of which point to Shopify domains. The primary malicious IOC is the ttraff.com redirector, which likely leads to further malicious content or phishing pages.

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=free+jeopardy+game+powerpoint+template
    • http://files.bfiny.com/uploads/1/3/2/7/132740606/8347467.pdf
    • http://fizus.mountaintoprodeo.com/uploads/1/3/1/6/131606552/bobofojukajemo.pdf
    • http://komamoli.soundplanning.net/uploads/1/3/1/3/131383679/951356.pdf
    • https://cdn.shopify.com/s/files/1/0437/8404/4705/files/best_markup_app_ipad.pdf
    • https://cdn.shopify.com/s/files/1/0438/5849/3600/files/pdf_mac_split_pages.pdf
    • https://cdn.shopify.com/s/files/1/0441/2047/3752/files/sazogulujozewezirud.pdf
    • https://cdn.shopify.com/s/files/1/0428/6952/2599/files/84977193419.pdf
    • https://cdn.shopify.com/s/files/1/0433/3164/9689/files/pokesukemizavo.pdf
    • https://cdn.shopify.com/s/files/1/0448/9995/8939/files/baseball_gloves_size_guide.pdf
    • https://cdn.shopify.com/s/files/1/0436/2056/5156/files/noxere.pdf
    • https://cdn.shopify.com/s/files/1/0429/4803/4716/files/10404009964.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/domamusuvusuzexi.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_off000068e8.bin
8593c2775f95e3e281f9710ddccc09c280bfc8a960f65344d9d7a3c213a6f095		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68E8 5328 bytes
font_01_sfnt_off00007b14.bin
e80cdb1bff0e8b90e8530bd22235f1b15a742cb0cf00727e1bd3368454ef1d68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B14 9932 bytes

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