Malicious PDF — malware analysis report

Static analysis result for SHA-256 5842394aaa86856c…

MALICIOUS

PDF

42.9 KB Created: 2020-08-22 14:25:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 760e2ab82a2ab238e2c31c4ae6e0554f SHA-1: 4328efd25e46300be217f7820a926f358c5e0ba3 SHA-256: 5842394aaa86856ce6abe19189570b57889a65333769e5362ea7038a285142f9
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a malicious redirector link disguised as a quotation sample template. The primary malicious URL is https://ttraff.cc/pify?keyword=quotation+sample+template+word, which is designed to lead users to further malicious content. The document also hosts a large number of external PDF links, many of which point to benign Shopify domains, suggesting a link farm or SEO manipulation tactic 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.cc/pify?keyword=quotation+sample+template+word
    • http://files.artistmikemeermann.com/uploads/1/3/2/7/132740399/56e2ee8fe8cce9.pdf
    • http://files.webfirethemes.com/uploads/1/3/1/1/131164129/jozixedawenusa.pdf
    • http://kenola.lahereclecticbeautysupply.com/uploads/1/3/0/9/130969723/2133688.pdf
    • http://files.candacedowning.com/uploads/1/3/0/8/130813489/ce15d6ced2.pdf
    • https://cdn.shopify.com/s/files/1/0429/5150/8131/files/3792498923.pdf
    • https://cdn.shopify.com/s/files/1/0433/9774/2750/files/wonder_bethel_chords.pdf
    • https://cdn.shopify.com/s/files/1/0434/7543/5677/files/4539356906.pdf
    • https://cdn.shopify.com/s/files/1/0436/7102/7865/files/nalulimanutelifibixeb.pdf
    • https://cdn.shopify.com/s/files/1/0431/6318/9405/files/domor.pdf
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/vugitis.pdf
    • https://cdn.shopify.com/s/files/1/0437/3551/5290/files/koxejupuredolibelapabed.pdf
    • https://cdn.shopify.com/s/files/1/0428/2492/5351/files/8025916111.pdf
    • https://cdn.shopify.com/s/files/1/0432/0886/8008/files/waguromurexolesuxolufog.pdf
    • https://cdn.shopify.com/s/files/1/0434/1222/6200/files/after_effect_learning_free_download.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e44.bin
1504eb1467af988cd9f47c7542842657f10d9c86cc2307b8c30676fbc70a6cb2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E44 5140 bytes
font_01_sfnt_off00006fa9.bin
a58422ab2789d92d7170ed0d4fdd526e14b9773612baa702279a3e395d384c4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA9 9832 bytes
font_02_sfnt_off000090dd.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90DD 4324 bytes

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