PDF malware analysis — malicious · b1ce027157d53dbe

MALICIOUS

PDF

98.0 KB Created: 2020-08-22 14:20:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8ed6f76e38831b2048746bc768d558b5 SHA-1: 9e0a0ac2d98dbf5d852e10dbee0d1ca803bf6d66 SHA-256: b1ce027157d53dbe6780ed7a56ff6e4eb8ca046c9527e700261c6e0cfdac032c

120 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 'https://ttraff.com/pify?keyword=vcredist_x64.+exe+2015'. This URL is presented in a way that suggests it leads to a software download, likely a malicious executable disguised as a legitimate installer. The document body, though heavily obfuscated, contains the same URL, reinforcing its role as the primary lure. The presence of a link farm heuristic further indicates a malicious intent to distribute content via numerous external links.

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/pify?keyword=vcredist_x64.+exe+2015
- http://files.insideoutkitchenandbath.com/uploads/1/3/0/9/130969904/6535180.pdf
- https://cdn.shopify.com/s/files/1/0432/3278/8648/files/affronter_ses_peurs.pdf
- https://cdn.shopify.com/s/files/1/0434/1111/2092/files/sword_art_online_progressive_manga_vol_1.pdf
- https://cdn.shopify.com/s/files/1/0432/0962/1665/files/afrontamiento_psicologia.pdf
- https://cdn.shopify.com/s/files/1/0431/4211/9592/files/16801395343.pdf
- https://cdn.shopify.com/s/files/1/0438/3178/7670/files/kidasat.pdf
- https://cdn.shopify.com/s/files/1/0429/3407/5558/files/cow_eye_dissection_lab_answers.pdf
- https://cdn.shopify.com/s/files/1/0428/9078/9027/files/wafubamaxegirazoninudige.pdf
- https://cdn.shopify.com/s/files/1/0439/8769/7822/files/fonominuzofolubi.pdf
- https://cdn.shopify.com/s/files/1/0436/0699/9203/files/4865294929.pdf
- https://cdn.shopify.com/s/files/1/0431/6214/0826/files/55220815344.pdf
- https://cdn.shopify.com/s/files/1/0435/9097/5647/files/89504272581.pdf
- https://cdn.shopify.com/s/files/1/0431/4929/5776/files/30879163684.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000fb21.bin` `bb60592f020a20a093c163972681cd79c3163fca71b1d9822c82796f8a110124`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFB21	16960 bytes
`font_01_sfnt_off00012d06.bin` `433ed96031c350a797f9557f1c8dae639357ec4bc57318ec64ab4fb911a97a4d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12D06	5476 bytes
`font_02_sfnt_off00013fe6.bin` `589ca2e7d02770cba62d09e9c92810309417cc6226c2eb02d7998943936ee5db`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13FE6	10860 bytes
`font_03_sfnt_off00016538.bin` `e245d83aa9810ba0fce5f2bb0e5f561f89fd5e90631648584630540fd40b3bbf`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x16538	16120 bytes

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