Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc84ace54ce1212c…

MALICIOUS

PDF

42.9 KB Created: 2020-08-24 09:26:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 722526a60ed1d7f0d05ef9f9cbd3ca2d SHA-1: 1bea5aba7fc8c4aed696db70a5349e6be3660746 SHA-256: cc84ace54ce1212c2ef47148af46a102970efcd4f4fb267bd632ee8e3b058aad
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, 'ttraff.cc', which is further contextualized by the document body mentioning 'asus rog gl552vx drivers'. This indicates a phishing or scam attempt disguised as a driver download. No scripts were extracted, limiting the analysis of further payload delivery mechanisms.

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=asus+rog+gl552vx+drivers
    • http://files.tammystillwaterdogs.com/uploads/1/3/1/4/131452997/mewudebifinoled.pdf
    • http://files.buildingyoureternity.org/uploads/1/3/0/8/130873820/ddb70.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tozonolemudafolafoxi.pdf
    • https://cdn.shopify.com/s/files/1/0441/2496/2968/files/mawazevuparofojilabutiki.pdf
    • https://cdn.shopify.com/s/files/1/0433/7441/1926/files/vakit.pdf
    • https://cdn.shopify.com/s/files/1/0430/5348/2138/files/blackhawks_2020_schedule.pdf
    • https://cdn.shopify.com/s/files/1/0434/5308/7911/files/cambridge_primary_mathematics_stage_5_learner_s_book.pdf
    • https://cdn.shopify.com/s/files/1/0432/5274/4356/files/70830205404.pdf
    • https://cdn.shopify.com/s/files/1/0435/0512/3493/files/29596616871.pdf
    • https://cdn.shopify.com/s/files/1/0429/5049/2316/files/gutevatokuxujogelariwo.pdf
    • https://cdn.shopify.com/s/files/1/0429/3656/5923/files/91425253787.pdf
    • https://cdn.shopify.com/s/files/1/0431/2770/1665/files/basic_atomic_structure_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/7686/1606/files/formato_de_amparo_directo_en_materia_laboral.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_off00006138.bin
328e8f0b09f507662aed20674fae11d73e7fdc408c537a93bfbe1c63155c2792		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6138 5156 bytes
font_01_sfnt_off000072e1.bin
1bf0992c8442ffc4a746334af288bfd50e31ebcc9db05782ff47056ef15987e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72E1 13824 bytes

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