Malicious PDF — malware analysis report

Static analysis result for SHA-256 3008fa78fc846b27…

MALICIOUS

PDF

35.7 KB Created: 2020-08-13 21:29:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 514c8ca3eb3f315a1270f851e72dce2a SHA-1: f74dc838948d4e6699b404ff230a786c106e226c SHA-256: 3008fa78fc846b277dae498d231584d2d89b077e2c34b27470afd127151947d9
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one heuristic specifically identifying it as a PDF link farm. The primary link, 'https://ttraff.cc/pify?keyword=hallux+valgus+deformity+icd+10', is flagged as a malicious redirector. This suggests the document's purpose is to lure users through a deceptive link, potentially leading to further malicious content or exploitation.

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.cc/pify?keyword=hallux+valgus+deformity+icd+10
    • http://files.suncityhoa.com/uploads/1/3/1/4/131437671/1853841.pdf
    • http://zufodajav.margtstudio.com/uploads/1/3/1/6/131637649/ad1223db.pdf
    • http://files.akiyunlee.com/uploads/1/3/1/1/131164488/026d23b.pdf
    • https://cdn.shopify.com/s/files/1/0433/1739/5611/files/cerita_dalam_bahasa_inggris.pdf
    • https://cdn.shopify.com/s/files/1/0436/8983/6697/files/22822067390.pdf
    • https://cdn.shopify.com/s/files/1/0430/0747/5875/files/buzotiloxawaxesatararuf.pdf
    • https://cdn.shopify.com/s/files/1/0429/6815/4278/files/pepudokemepizasopopovag.pdf
    • https://cdn.shopify.com/s/files/1/0430/0649/2823/files/47590734893.pdf
    • https://cdn.shopify.com/s/files/1/0444/6837/1623/files/roche_bobois_price_list.pdf
    • https://cdn.shopify.com/s/files/1/0432/2754/5755/files/jukatonobulir.pdf
    • https://cdn.shopify.com/s/files/1/0428/2934/9030/files/78278827968.pdf
    • https://cdn.shopify.com/s/files/1/0428/0752/5542/files/37709219247.pdf
    • https://cdn.shopify.com/s/files/1/0431/8537/3333/files/56595131205.pdf
    • https://cdn.shopify.com/s/files/1/0431/1177/6416/files/77067417002.pdf
    • https://cdn.shopify.com/s/files/1/0437/4170/8453/files/historia_clinica_psicologica_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0433/5350/5946/files/vejefiwoduxamov.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_off00004a91.bin
6a584029d6350e8c9633f677f65d08adf1c56afc65ecceb088e54832a282f810		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A91 5728 bytes
font_01_sfnt_off00005e06.bin
cf92dddae17bb67df18c4aea35e4aa51eee86d4e419adf390e886ec3ed45bbb2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E06 10520 bytes

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