PDF malware analysis — malicious · 9d31e13b736e77ac

MALICIOUS

PDF

43.1 KB Created: 2020-08-23 02:20:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5b6f62bcb5f18570991767d82573e361 SHA-1: 3b9c1018b3c61bbdd9aa49e739cf2f91579eda68 SHA-256: 9d31e13b736e77ac82a49c232c5a42c832d241cc9bad1016e8d79e70d5c6e5b9

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass external link farm, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL is https://ttraff.com/pify?keyword=bosch+kiv38x22gb+integrated+fridge+freezer+manual, which likely leads to a malicious payload. The document body, though heavily obfuscated, contains references to the redirector URL, reinforcing the malicious intent. No scripts were extracted, limiting further analysis of the payload delivery mechanism.

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=bosch+kiv38x22gb+integrated+fridge+freezer+manual
- http://files.andrewflojo.com/uploads/1/3/1/4/131453598/mugedozavigov-fowibin-wefibevuwibuz.pdf
- http://zerem.rwandamedicaljournal.org/uploads/1/3/1/4/131482975/dokajo.pdf
- http://files.lauragilliom.com/uploads/1/3/0/8/130873718/xamun.pdf
- http://files.flight111.co/uploads/1/3/1/3/131398369/4079564.pdf
- https://cdn.shopify.com/s/files/1/0431/7069/3284/files/jogelulukek.pdf
- https://cdn.shopify.com/s/files/1/0428/9809/6284/files/possessivpronomen_italienisch_bungen.pdf
- https://cdn.shopify.com/s/files/1/0440/6712/7446/files/womomijutujo.pdf
- https://cdn.shopify.com/s/files/1/0435/1796/8543/files/oriflame_catalog_january_2020_download.pdf
- https://cdn.shopify.com/s/files/1/0435/7108/5475/files/brew_list_installed.pdf
- https://cdn.shopify.com/s/files/1/0437/6900/4190/files/libizuz.pdf
- https://cdn.shopify.com/s/files/1/0436/1358/5566/files/sexinoxofokikakosizej.pdf
- https://cdn.shopify.com/s/files/1/0434/0206/8131/files/dumakabofi.pdf
- https://cdn.shopify.com/s/files/1/0428/8099/1388/files/78547883300.pdf
- https://cdn.shopify.com/s/files/1/0429/7618/2426/files/94365203527.pdf
- https://cdn.shopify.com/s/files/1/0428/6863/7862/files/javipozafukikulagit.pdf
- https://cdn.shopify.com/s/files/1/0433/5019/6389/files/bssc._bih._nic._in_admit_card_2020.pdf
- https://cdn.shopify.com/s/files/1/0431/3012/6496/files/79962879528.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_off000066c5.bin` `2f62bbde7c011586468f96f94363c88a10cb99952bc01a38f67ada9fdbe6529b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x66C5	6356 bytes
`font_01_sfnt_off00007c37.bin` `e1b23bbc5de62936b388692c6467bb010f6c9fa417be7083ce2759a6bad37925`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7C37	10104 bytes

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