Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8399fe23ce05f04…

MALICIOUS

PDF

53.5 KB Created: 2020-08-31 00:18:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 060d71ec1cd9f0b2fa073b0443c11de1 SHA-1: b6033854f143203f414d0401ec2ca2ebfe9cf8e6 SHA-256: e8399fe23ce05f04b67117d035107d721a282e0c21582fa3893a479eeb1a32ca
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to a URL that appears to be part of a SEO link farm. The document body, though heavily obfuscated, contains the same URL, suggesting the primary intent is to drive users to this malicious site. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.me/wix?keyword=administracion+de+la+produccion+y+las+operaciones+adam+everett+pdf+descargar
    • https://cdn.shopify.com/s/files/1/0429/3437/0470/files/32284572282.pdf
    • https://cdn.shopify.com/s/files/1/0433/9462/9786/files/gijokimobipaxepaxapirudi.pdf
    • https://cdn.shopify.com/s/files/1/0430/4856/6933/files/sonic_cd_online.pdf
    • https://cdn.shopify.com/s/files/1/0429/5340/8675/files/46504570083.pdf
    • https://cdn.shopify.com/s/files/1/0427/7652/7014/files/76331880361.pdf
    • https://cdn.shopify.com/s/files/1/0438/6488/3355/files/18900037131.pdf
    • https://cdn.shopify.com/s/files/1/0431/4624/8358/files/mikepinafor.pdf
    • https://cdn.shopify.com/s/files/1/0431/8917/4432/files/76270999406.pdf
    • https://cdn.shopify.com/s/files/1/0437/8951/6962/files/coreldraw_2020_serial_number_list.pdf
    • https://static.usrfiles.com/ugd/b8c837_d94b033543fd4ea18abc292643af1d68.pdf
    • https://static.usrfiles.com/ugd/760101_ebfec2ffbc12406e9114105b236872ec.pdf
    • https://static.usrfiles.com/ugd/d3758e_361a73ed878b4fc6b878782989d3a52b.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/
    • https://cdn.shopify.com/s/files

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007768.bin
50881f276718d3f56860583e511a2872b6e6b818ce1c46a1d94d30077adcdfb8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7768 1712 bytes
font_01_sfnt_off00007fb2.bin
9559fecf914bc96e6dbf5d3ea2dbfc7a5d17b8517d34bd4a518a30a615ead529		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FB2 5508 bytes
font_02_sfnt_off00009258.bin
145d89e9610942eb9109b17d5029c4c835d0d1cb912979edc271ea1edfb5ab99		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9258 12248 bytes
font_03_sfnt_off0000b9c9.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB9C9 4324 bytes

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