Malicious PDF — malware analysis report

Static analysis result for SHA-256 e264a80f818ab3c7…

MALICIOUS

PDF

42.8 KB Created: 2020-08-15 01:15:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 506ef6a00f1ee8dcf384dd82becb271e SHA-1: 429e63b3b3475ead0cbcf13e23a3455721486c75 SHA-256: e264a80f818ab3c786721c4c39870b7cf3e155e864e6a8f438b404b9308b11d9
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.ru/pify?keyword=corrugated+steel+sheet+weight, which is likely used to redirect the user to a malicious site. Another embedded URL, https://cdn.shopify.com/s/files/1/0440/5536/3734/files/daxogipidemexoj.pdf, is also listed as a potential IOC. The document body contains obfuscated text and references to the malicious URL, suggesting a phishing or redirection attempt.

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.ru/pify?keyword=corrugated+steel+sheet+weight
    • http://files.mylifetimetodos.com/uploads/1/3/0/7/130739731/627170.pdf
    • https://cdn.shopify.com/s/files/1/0440/5536/3734/files/daxogipidemexoj.pdf
    • https://cdn.shopify.com/s/files/1/0432/3734/3387/files/59045148854.pdf
    • https://cdn.shopify.com/s/files/1/0431/6915/3181/files/nagajuxetivolutux.pdf
    • https://cdn.shopify.com/s/files/1/0428/5412/1635/files/54656996271.pdf
    • https://cdn.shopify.com/s/files/1/0434/5744/6041/files/desozefifu.pdf
    • https://cdn.shopify.com/s/files/1/0435/7872/0414/files/bunesizejinep.pdf
    • https://cdn.shopify.com/s/files/1/0429/8866/7034/files/varudi.pdf
    • https://cdn.shopify.com/s/files/1/0433/5756/9176/files/50697784180.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_off000055d6.bin
ee65dfa66b0cdf43f682afea11a46c3d42cfae00083736da9e3a8c185ff46b07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55D6 4980 bytes
font_01_sfnt_off000066f1.bin
a0ad3ce8962b39634919ce646bc927c32df849fa356105adb5795fe074a73ea3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66F1 13128 bytes
font_02_sfnt_off00009056.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9056 4324 bytes

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