Malicious PDF — malware analysis report

Static analysis result for SHA-256 9008cfa101caef7b…

MALICIOUS

PDF

55.5 KB Created: 2020-08-08 13:28:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f4691075f806b2426a7e9f8a8b59ec7 SHA-1: 04037507cf84678d452c9f50f9811cb74d5782dc SHA-256: 9008cfa101caef7b8bcc13ef8098b96eb2b2c48791a40cad8c6388baaedbb3f8
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=defensa+siciliana+pelikan+pdf'. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on cdn.shopify.com, suggesting an attempt to distribute malicious content or manipulate search engine results. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing the malicious intent.

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=defensa+siciliana+pelikan+pdf
    • http://files.aaronnovick.com/uploads/1/3/2/6/132681757/23134a2e403.pdf
    • http://files.redstickwarriors.com/uploads/1/3/0/9/130969825/jofamuf_sonalajoleduvu_sazotuk_vobijebowunuver.pdf
    • http://files.evaslebanesecooking.com/uploads/1/3/0/7/130738790/284a683.pdf
    • http://jalalam.stowefamilywellness.com/uploads/1/3/1/4/131437987/a58846.pdf
    • https://cdn.shopify.com/s/files/1/0441/4459/1000/files/dusananejo.pdf
    • https://cdn.shopify.com/s/files/1/0437/0222/3013/files/votevadufidezuwoboruvadek.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6278/files/sally_spa_games.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/kakivoxemogobo.pdf
    • https://cdn.shopify.com/s/files/1/0431/7950/7880/files/cancer_de_pulmon_2020_peru.pdf
    • https://cdn.shopify.com/s/files/1/0430/6917/8017/files/34047632752.pdf
    • https://cdn.shopify.com/s/files/1/0435/5004/8419/files/gasafovop.pdf
    • https://cdn.shopify.com/s/files/1/0435/7285/4939/files/sears_kenmore_elite_refrigerator.pdf
    • https://cdn.shopify.com/s/files/1/0436/1850/0765/files/14030914680.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35117459625.pdf
    • https://cdn.shopify.com/s/files/1/0433/3407/4523/files/96040190881.pdf
    • https://cdn.shopify.com/s/files/1/0429/8778/2297/files/vowuxafufe.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_off00009c3f.bin
d430c4959c3cc166069cbf3470640fba7f0e22593788fbc61fb4dfeaffca2196
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C3F 5116 bytes
font_01_sfnt_off0000adca.bin
775e9c318628ed048c5baf119fd9bddf7784514acf395b98b985adb956e77362
pdf-font-stream PDF embedded font (sfnt) at offset 0xADCA 10316 bytes