Malicious PDF — malware analysis report

Static analysis result for SHA-256 f47e75ef4a524487…

MALICIOUS

PDF

33.8 KB Created: 2020-08-02 12:22:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d6aa14bcad819768cf5fa451692037c SHA-1: 50b808eed423960c4128dd6a876bf5cbc0ad5cb6 SHA-256: f47e75ef4a52448748350b71f2c52d035fb25f03e3e52499683ca73f4e5a3824
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=my+imortal+sheet+music'. The document body, though heavily obfuscated, contains this URL and other URLs hosted on Shopify, suggesting a link farm or redirection strategy. The primary intent appears to be directing the user to malicious infrastructure under the guise of providing sheet music.

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=my+imortal+sheet+music
    • http://files.mtwcare.org/uploads/1/3/1/0/131070866/7451428.pdf
    • http://files.dropbucketmarketing.com/uploads/1/3/0/9/130969334/b4be8a.pdf
    • http://files.occupationaltherapyevidencebasedpractice.com/uploads/1/3/0/7/130775192/peroziv.pdf
    • http://files.miwwi.us/uploads/1/3/1/3/131398145/nirisojikubufe.pdf
    • https://cdn.shopify.com/s/files/1/0427/6014/3014/files/81956092315.pdf
    • https://cdn.shopify.com/s/files/1/0428/3678/7356/files/ruworezizitep.pdf
    • https://cdn.shopify.com/s/files/1/0437/5946/8701/files/sekiwow.pdf
    • https://cdn.shopify.com/s/files/1/0432/0952/3355/files/wujubepikoxe.pdf
    • https://cdn.shopify.com/s/files/1/0434/1979/5623/files/vadomibirafulogasemu.pdf
    • https://cdn.shopify.com/s/files/1/0429/1677/4054/files/38329890965.pdf
    • https://cdn.shopify.com/s/files/1/0437/0608/9640/files/stokstad_art_history.pdf
    • https://cdn.shopify.com/s/files/1/0431/5794/6519/files/wolalom.pdf
    • https://cdn.shopify.com/s/files/1/0433/4649/3605/files/36577298803.pdf
    • https://cdn.shopify.com/s/files/1/0432/5048/3368/files/bipuwose.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/34238318076.pdf
    • https://cdn.shopify.com/s/files/1/0429/9682/6273/files/peratexedabapirox.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_off000045b5.bin
4fef9058c9b4a41a95c2fffab7138cc87d088660b96672b2dc28193c65258884		 pdf-font-stream PDF embedded font (sfnt) at offset 0x45B5 5148 bytes
font_01_sfnt_off00005714.bin
afa6368931e47b2fff0e1670b091b29ec982626b3f74dc74856cad565bb49447		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5714 9936 bytes

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