Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8cb9899e5265766…

MALICIOUS

PDF

42.8 KB Created: 2020-08-06 21:25:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 875a12a8a770fce1ff510cb1660d51b7 SHA-1: 6b8d7ecce432e1d770debcb6600e5471c4866f27 SHA-256: e8cb9899e526576687c6208216c963a604c7792434c3a997fd91ebdc1371a0c1
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to a link farm designed to obscure the ultimate destination. One of these links, https://ttraff.cc/pify?keyword=company+profile+pdf+interior, is a known malicious redirector. The document body, though heavily obfuscated, contains this same URL, suggesting the intent is to trick the user into clicking the malicious link under the guise of viewing a company profile.

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=company+profile+pdf+interior
    • http://files.prairiefix.com/uploads/1/3/1/0/131070356/4174338.pdf
    • http://files.kikoriapp.com/uploads/1/3/1/6/131606346/netiz.pdf
    • http://files.amfccl.com/uploads/1/3/1/4/131408798/valudokamalivas-vubufowaxaru.pdf
    • http://files.togetherincounselling.co.uk/uploads/1/3/0/8/130813095/254556af50a38b.pdf
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/the_spinners_discography.pdf
    • https://cdn.shopify.com/s/files/1/0430/4610/9345/files/38597919685.pdf
    • https://cdn.shopify.com/s/files/1/0431/3543/4901/files/17518960119.pdf
    • https://cdn.shopify.com/s/files/1/0437/2656/9633/files/48400900105.pdf
    • https://cdn.shopify.com/s/files/1/0433/4800/0927/files/99493408688.pdf
    • https://cdn.shopify.com/s/files/1/0439/4024/9755/files/32299907445.pdf
    • https://cdn.shopify.com/s/files/1/0431/4316/8156/files/captivating_book_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/3308/4575/files/4181021188.pdf
    • https://cdn.shopify.com/s/files/1/0428/6775/3116/files/76809389521.pdf
    • https://cdn.shopify.com/s/files/1/0427/9923/5228/files/refixiv.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_off00006a92.bin
611ca2aa5b4ab695492002f58bebf8665e746617c8814d95ef8c29cdc1704315		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A92 5016 bytes
font_01_sfnt_off00007b93.bin
67b2743e049d940d67bfad34a3fcac0cf972324fe6687f94c06e7c1a7e5b6b61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B93 10192 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.