Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a2f207ba0e5f71f…

MALICIOUS

PDF

38.3 KB Created: 2020-08-17 06:05:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e54812e99ce803ac1f2aae32d745f2a SHA-1: 5a1e23e23cd6bf40c81d6b47c189be336746a4db SHA-256: 8a2f207ba0e5f71f6ca10ef4c80a0d70bb780670356cda35f6885f4f7c3a09f7
120 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.com', which is a known malicious domain. Additionally, it hosts a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The document body itself contains garbled text but includes the target URL, indicating an attempt to lure the user into clicking the malicious link. No scripts were extracted, but the presence of a malicious redirector and a link farm strongly suggests a phishing or scam delivery mechanism.

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=acceleration%252F+velocity+conceptual+questions+and+answers
    • http://xalav.goingdeepwithaaron.com/uploads/1/3/1/4/131452903/fasokev.pdf
    • https://cdn.shopify.com/s/files/1/0434/6901/3144/files/dufupi.pdf
    • https://cdn.shopify.com/s/files/1/0437/3096/0549/files/peniburilovexuzabezar.pdf
    • https://cdn.shopify.com/s/files/1/0433/1945/9998/files/zovijojanalufasapizepo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6580/2905/files/xumatetek.pdf
    • https://cdn.shopify.com/s/files/1/0427/6181/4172/files/buvezikikifuxixubelugesaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0097/8853/files/60760635455.pdf
    • https://cdn.shopify.com/s/files/1/0435/8186/6143/files/vurisivepekosibelexokodep.pdf
    • https://cdn.shopify.com/s/files/1/0438/6881/5528/files/27001404410.pdf
    • https://cdn.shopify.com/s/files/1/0431/7318/3643/files/vogelelimakelegalurofut.pdf
    • https://cdn.shopify.com/s/files/1/0434/0760/5918/files/8347797233.pdf
    • https://cdn.shopify.com/s/files/1/0430/3749/1357/files/buxoxuneve.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_off00005821.bin
97898e0e6c78d19d49b6eff7d338c8fd7efd52cc287979c5ed578b018e602a22		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5821 5472 bytes
font_01_sfnt_off00006ae3.bin
d499204a6ecbd8513f01958d04b276496df027360d19bd09dccf473f78bad48f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE3 9760 bytes

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