PDF malware analysis — malicious · d4d991782dc314ea

MALICIOUS

PDF

47.1 KB Created: 2020-07-28 18:41:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 6c2b50949ee57e401a1379068aef728c SHA-1: 2a3a55ecc82b84b601b81a0ca246acdc80f1015a SHA-256: d4d991782dc314eab695f1f1eb83c52ba208008bdad29a82d556d10996a12765

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, suggests a lure related to 'alternating current generator pdf'. The primary heuristic indicates that the PDF links to known malicious redirector infrastructure, and another heuristic flags it as a link farm. These factors suggest the document is designed to redirect users to malicious sites.

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=alternating+current+generator+pdf
- http://files.romerolab.com/uploads/1/3/2/3/132303134/vopovakak_bisefarebobulub.pdf
- http://files.pcpachicago.com/uploads/1/3/1/3/131384718/veforopuxefu_wodupogul_xitokowipel_wurezorufob.pdf
- http://files.joanneschwehmbooks.com/uploads/1/3/1/6/131606490/ganobekaxafatar.pdf
- http://files.farmingninja.com/uploads/1/3/1/4/131453268/pumet.pdf
- http://files.newyorkhomescholars.com/uploads/1/3/1/1/131164557/makik.pdf
- http://files.joanneschwehmbooks.com/uploads
- https://cdn.shopify.com/s/files/1/0438/1153/7053/files/85271699890.pdf
- https://cdn.shopify.com/s/files/1/0431/8127/7352/files/vuses.pdf
- https://cdn.shopify.com/s/files/1/0432/6499/9590/files/ribozudakoniliwag.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ranugebiwuzejivuzuf.pdf
- https://cdn.shopify.com/s/files/1/0434/7107/7526/files/bodad.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gigogew.pdf
- https://cdn.shopify.com/s/files/1/0431/0623/8613/files/23431223125.pdf
- https://cdn.shopify.com/s/files/1/0431/2901/2381/files/54237695197.pdf
- https://cdn.shopify.com/s/files/1/0428/3888/4519/files/83025773448.pdf
- https://cdn.shopify.com/s/files/1/0428/0100/4707/files/legimunasomonaxexido.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52945462890.pdf
- https://cdn.shopify.com/s/files/1/0431/0391/2098/files/lemekirudok.pdf
- https://cdn.shopify.com/s/files/1/0436/0303/4276/files/56268851276.pdf
- https://cdn.shopify.com/s/files/1/0434/6766/9654/files/60107990869.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_off00007b5e.bin` `fcf50e14d5b80c9bddeb85a25f96afe2e82e36222f63ddf137445bd20b6522a5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7B5E	5016 bytes
`font_01_sfnt_off00008c74.bin` `7824d9096f4dd8681ff10cda09743b94180d9eae764e7d6e74c1b109289d4bf1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C74	10128 bytes

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