Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8ac59b53e2132c7…

MALICIOUS

PDF

43.7 KB Created: 2020-08-14 18:47:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8137bb02709a22083028a96b86cbe76e SHA-1: b90bd7461abe4a33696bd8f9a56d1f5c0450b362 SHA-256: e8ac59b53e2132c7eb361451ebf51a024e4bb3b958bcc3dffdff5a9fb353d936
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a 'tuning guide'. The primary malicious URL is https://ttraff.cc/pify?keyword=dn+ice+boat+tuning+guide, which likely leads to further malicious content. The presence of numerous SEO-optimized PDF links suggests an attempt to distribute malicious content widely.

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=dn+ice+boat+tuning+guide
    • http://sugive.nles-boutique.com/uploads/1/3/1/4/131437812/6260939.pdf
    • http://fudofuja.kekuna.org/uploads/1/3/0/8/130814297/dobotowikikuvikur.pdf
    • https://cdn.shopify.com/s/files/1/0434/0557/4309/files/diwosama.pdf
    • https://cdn.shopify.com/s/files/1/0436/1725/5581/files/convert_rgb_to_cmyk.pdf
    • https://cdn.shopify.com/s/files/1/0439/9867/5102/files/deloitte_company_profile.pdf
    • https://cdn.shopify.com/s/files/1/0434/3450/8454/files/wokomumazibibojorudom.pdf
    • https://cdn.shopify.com/s/files/1/0434/9945/4628/files/norojevenefakututik.pdf
    • https://cdn.shopify.com/s/files/1/0430/3749/1354/files/47511520303.pdf
    • https://cdn.shopify.com/s/files/1/0429/1395/6007/files/best_guitar_vst.pdf
    • https://cdn.shopify.com/s/files/1/0434/4047/2229/files/26760519531.pdf
    • https://cdn.shopify.com/s/files/1/0430/6924/3549/files/bivariate_frequency_distribution_example.pdf
    • https://cdn.shopify.com/s/files/1/0433/1916/5086/files/92371021594.pdf
    • https://cdn.shopify.com/s/files/1/0427/9785/8972/files/anestesia_regional_con_ecografia.pdf
    • https://cdn.shopify.com/s/files/1/0440/7423/8102/files/the_devil_in_i_lyrics.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_off00006d46.bin
d369f733bc3e01e8d95c6a7564090b67112bf96b5f1d25ce90c59e8ddbfc3a01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D46 4940 bytes
font_01_sfnt_off00007e1c.bin
bb599f53111b615e6130c2101a520b7e750451cfd615206efc054441aff05ace		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E1C 10652 bytes

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