Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7543c3892b89024…

MALICIOUS

PDF

44.0 KB Created: 2020-08-25 01:06:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ff0cf61218d6843309fb90419f71fc8 SHA-1: 599d8e8d4ad57999e67dc7ccc835402a045dbd92 SHA-256: c7543c3892b89024f4e4a075a78ed1780eb9bc4d7cb5420d2a5d7f3262fe9b2c
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many hosted on Shopify, forming a link farm. One of the primary links directs to a known malicious redirector at 'ttraff.ru'. This suggests the document's purpose is to direct users to malicious content, likely for phishing or malware delivery. No scripts were extracted, and the document body was largely unreadable binary data, limiting further analysis of the specific lure.

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=jinja2+get+template+filename
    • http://files.committedcommunitymentors.org/uploads/1/3/1/8/131871730/02911e44baaa.pdf
    • http://files.allenhurstapts.com/uploads/1/3/1/4/131482892/646d2043856.pdf
    • https://cdn.shopify.com/s/files/1/0433/0386/2440/files/nudomidodemef.pdf
    • https://cdn.shopify.com/s/files/1/0433/4531/3941/files/zunadogemumazoxig.pdf
    • https://cdn.shopify.com/s/files/1/0436/3137/8590/files/zukaleletu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8307/9584/files/wosipuwepigerolewemelebak.pdf
    • https://cdn.shopify.com/s/files/1/0428/6231/3631/files/sasizusijazufajofomazot.pdf
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/36641070798.pdf
    • https://cdn.shopify.com/s/files/1/0435/3549/9418/files/xuduwejulu.pdf
    • https://cdn.shopify.com/s/files/1/0430/4843/5861/files/79576494092.pdf
    • https://cdn.shopify.com/s/files/1/0438/0416/4257/files/tubuvugofomiredug.pdf
    • https://cdn.shopify.com/s/files/1/0431/2154/1271/files/31332937021.pdf
    • https://cdn.shopify.com/s/files/1/0430/8857/6661/files/cushman_turf_truckster.pdf
    • https://cdn.shopify.com/s/files/1/0431/8419/3697/files/virgin_australia_app_for_android.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_off00005fde.bin
b0f824a3b50ea13da7582406209a0ae12c49435babca83e29b3adf3e4294a893		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDE 3572 bytes
font_01_sfnt_off00006c85.bin
0a95c88f5ee93ababbbaa521863933a66fc48bb74c8bc1abc493c8fc2355ff6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C85 5144 bytes
font_02_sfnt_off00007e05.bin
16f3038ed89df71ce15d4d2211cddda33a963b6f7ffaf5347d662ec0172e8cb3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E05 10640 bytes

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