Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d53c256bb78b708…

MALICIOUS

PDF

40.2 KB Created: 2020-08-16 00:12:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6bfdf524f699f36efb6d2e4eb1fe82aa SHA-1: ae52594217b4b0e23c872a9551dc1290096e70a0 SHA-256: 2d53c256bb78b7082512779a4d1cd53eeeb9c979e09ea6d80087193a0bea383a
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, specifically 'https://ttraff.com/wb?keyword=translate%20french%20to%20english%20pdf%20document'. The document body text also contains this URL, suggesting a lure to trick users into clicking it. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential SEO-based link farm used to obscure the malicious redirector.

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/wb?keyword=translate%20french%20to%20english%20pdf%20document
    • http://pezeso.amazingmakeupyoulove.com/uploads/1/3/0/8/130874090/540043.pdf
    • https://cdn.shopify.com/s/files/1/0432/2358/0839/files/89861018032.pdf
    • https://cdn.shopify.com/s/files/1/0429/9263/1962/files/zikegole.pdf
    • https://cdn.shopify.com/s/files/1/0438/5102/2501/files/character_of_a_leader.pdf
    • https://cdn.shopify.com/s/files/1/0437/0399/2485/files/castes_et_races.pdf
    • https://cdn.shopify.com/s/files/1/0432/2813/5591/files/zudolufafolin.pdf
    • https://cdn.shopify.com/s/files/1/0429/5639/0551/files/vunoxe.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6166/files/10775020131.pdf
    • https://cdn.shopify.com/s/files/1/0439/4234/6907/files/41765182020.pdf
    • https://cdn.shopify.com/s/files/1/0432/6375/4404/files/37868222194.pdf
    • https://cdn.shopify.com/s/files/1/0427/9002/7430/files/fibexodaxul.pdf
    • https://cdn.shopify.com/s/files/1/0429/6749/8911/files/rugologuwozobekizut.pdf
    • https://cdn.shopify.com/s/files/1/0436/1263/5299/files/cheating_cookie_clicker.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_off00005fd3.bin
d09c023e00d90776524e8b328eed392cc3e651b6f67b9a77292695ea598f9ebf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD3 5516 bytes
font_01_sfnt_off0000725d.bin
670aaecd57951aa1c2bc1e08f8f47e75a34303f2134b331e3f0341a4d5fdd1c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x725D 9880 bytes

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