Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bb3ff735c9e0342…

MALICIOUS

PDF

45.8 KB Created: 2020-08-27 12:46:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 601a2d6949c543315e22e41ad66db5fe SHA-1: b8fbe3b0738e183c0a6dfe6ac571c87388355617 SHA-256: 4bb3ff735c9e03422209b8fcbab155ee00089b4a3ad2e0a1fe91360f35c25c8f
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, a technique often used to create link farms for SEO manipulation or to host phishing lures. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=carlos+castaneda+the+art+of+dreaming'. While the document body is heavily obfuscated, the presence of this malicious redirector and the link farm structure strongly suggests an attempt to lure users to malicious content.

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/pify?keyword=carlos+castaneda+the+art+of+dreaming
    • http://files.whitesteeplestage.com/uploads/1/3/1/4/131437605/diveg-kexunakozax.pdf
    • https://cdn.shopify.com/s/files/1/0440/8924/5861/files/89345437037.pdf
    • https://cdn.shopify.com/s/files/1/0429/3502/5831/files/windows_98_img_dosbox_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/6949/7753/files/nemebotuvolirutamapo.pdf
    • https://cdn.shopify.com/s/files/1/0429/8499/7025/files/tamasha_full_movie_online_hd_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/7702/6463/files/96711021946.pdf
    • https://cdn.shopify.com/s/files/1/0435/5319/4133/files/ejercicios_de_adjetivos_en_ingles_para_nios.pdf
    • https://cdn.shopify.com/s/files/1/0433/7470/6853/files/82748920418.pdf
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/zejoxojidugerepubinuvavuk.pdf
    • https://cdn.shopify.com/s/files/1/0431/6623/6826/files/74187746710.pdf
    • https://cdn.shopify.com/s/files/1/0435/9208/9759/files/92044881640.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c1e.bin
ffeaf26da8083691e65b5e2290e1d6a31c1a78de97f8a81e111d051236be1241		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C1E 5248 bytes
font_01_sfnt_off00006dc3.bin
0f568c20d7cf482da9bb1c05ab9061206f7a3c88f629b6f806a8543ef7b1c896		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DC3 10492 bytes
font_02_sfnt_off0000915f.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x915F 4324 bytes
font_03_sfnt_off00009f60.bin
a266c491f4931368510dae9bd4cf4b58734b51aa8192ea38aee5fe523c195c0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F60 2572 bytes

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