Malicious PDF — malware analysis report

Static analysis result for SHA-256 99f5ffe72a85f19e…

MALICIOUS

PDF

44.0 KB Created: 2020-08-29 18:53:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74c58bb8e091d5bb058a9112ce327082 SHA-1: 3aa0e6f9217a41130d7fdfdcead782787c45d92e SHA-256: 99f5ffe72a85f19e9dab08ba6b48d10fe659fffebdf17ea0ad1cb53a2dfa7c58
120 Risk Score

Malware Insights

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

The PDF document contains a lure related to 'Shania Twain love gets me every time' and embeds multiple links. One of these links, 'https://ttraff.com/wix?keyword=shania+twain+love+gets+me+every+time', is identified as a malicious redirector. The document also contains a large number of links to Shopify domains, suggesting a link farm for SEO manipulation or to obscure the malicious redirector. The primary attack vector appears to be social engineering through a deceptive document body, leading to a malicious URL.

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/wix?keyword=shania+twain+love+gets+me+every+time
    • https://cdn.shopi
    • https://cdn.shopify.com/s/files/1/0430/3188/8035/files/91472480811.pdf
    • https://cdn.shopify.com/s/files/1/0437/4999/8743/files/bejugumejiluzupitewes.pdf
    • https://cdn.shopify.com/s/files/1/0465/4530/5750/files/kifovufawemazepizozar.pdf
    • https://cdn.shopify.com/s/files/1/0438/1540/3682/files/60286355846.pdf
    • https://cdn.shopify.com/s/files/1/0437/8545/3730/files/87305551109.pdf
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/16640755678.pdf
    • https://cdn.shopify.com/s/files/1/0430/6472/1562/files/fm_21_76_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/6978/3720/files/10320748699.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94448736580.pdf
    • https://static.usrfiles.com/ugd/1e4819_091c441fc0274a4d8e1e5fd2160d2c67.pdf
    • https://static.usrfiles.com/ugd/bae363_4a5313f5f79549beaded4bf4fc8425a9.pdf
    • https://cdn.shopify.com/s/files/1/0433/3119/0952/files/what_is._aae_file.pdf
    • https://cdn.shopify.com/s/files/1/0427/5362/2182/files/pumikukavikaxugi.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_off00006e76.bin
50e863f4b2430473b7c68bc2f458bfa92b2449a61f795c830013b64f80e3b98c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E76 5456 bytes
font_01_sfnt_off000080f1.bin
a1a3394caab24d172adbda9f68efab483a0cd6074bec7ea18bbb9a08789d17b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80F1 10036 bytes

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