PDF malware analysis — malicious · c1402780b5eb296f

MALICIOUS

PDF

40.3 KB Created: 2020-08-12 18:44:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 772dc8d9dec11cfca4d52c1ca8a75bb7 SHA-1: 5293a40ccc038016a8d4aa0d0782e9ab76e33c0c SHA-256: c1402780b5eb296f177187a26cdaeade11701b6befc9f8beb814f37da5fcbc95

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded URLs, with a critical heuristic firing indicating a link to a known malicious redirector service. The document body itself is heavily obfuscated but contains the same redirector URL. The presence of a large link farm suggests an attempt to manipulate search engine results or distribute malicious links broadly. The primary malicious URL identified is https://ttraff.com/pify?keyword=carcinoma+epidermoide+boca+pdf.

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=carcinoma+epidermoide+boca+pdf
- http://difikego.hizercustomdesigns.com/uploads/1/3/0/8/130814328/zikekatisobo.pdf
- http://files.daviessurveys.com/uploads/1/3/0/9/130969431/mofaribexaposetoj.pdf
- http://files.medaryville.net/uploads/1/3/1/8/131856232/fisibesirejozazo.pdf
- https://cdn.shopify.com/s/files/1/0432/7201/1941/files/bhagavad_gita_chapter_15_slokas_in_sanskrit.pdf
- https://cdn.shopify.com/s/files/1/0437/4927/7845/files/accidental_inventions.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zupapinited.pdf
- https://cdn.shopify.com/s/files/1/0430/8061/4041/files/bible_timeline_download.pdf
- https://cdn.shopify.com/s/files/1/0439/1400/2600/files/vufaxazevulutegojipu.pdf
- https://cdn.shopify.com/s/files/1/0430/1658/5379/files/73541759803.pdf
- https://cdn.shopify.com/s/files/1/0432/5025/3992/files/nasuroge.pdf
- https://cdn.shopify.com/s/files/1/0432/0903/1840/files/79715082172.pdf
- https://cdn.shopify.com/s/files/1/0432/5359/6310/files/21300892183.pdf
- https://cdn.shopify.com/s/files/1/0427/9848/1564/files/negifezekokimugotirajo.pdf
- https://cdn.shopify.com/s/files/1/0434/1451/9966/files/29372292301.pdf
- https://cdn.shopify.com/s/files/1/0434/5780/6486/files/edit_pdf_add_pages_online.pdf
- https://cdn.shopify.com/s/files/1/0433/3695/8104/files/73719151724.pdf
- https://cdn.shopify.com/s/files/1/0429/3158/5180/files/73665072360.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00005efa.bin` `4dcf51a041996107fbed0f25f96779ac254715523247971d85479e47d0271028`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5EFA	5136 bytes
`font_01_sfnt_off00007050.bin` `5c6f18512d3f17384c9c846bcb65e6fb97cc7449e30fab7d9d201129da4a7551`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7050	10648 bytes

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