PDF malware analysis — malicious · 2e4288eaf9522f32

MALICIOUS

PDF

54.1 KB Created: 2020-08-23 23:26:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b51bfe284b269f17572f5696ae76dd40 SHA-1: 7b441a0b213b342ad41d3d37fb468bedb95ba88a SHA-256: 2e4288eaf9522f32c4354ea7e452536466b32847e7e1f22d4d63f5dedd1c606a

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=calendar+ramadan+2018+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to improve the redirector's visibility. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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=calendar+ramadan+2018+pdf
- http://jijuxov.fabricsatfleetwood.com/uploads/1/3/1/3/131379069/5262202.pdf
- http://supiwon.the-nature-atelier.com/uploads/1/3/2/6/132682974/takotobabi.pdf
- http://devetos.sanantoniooutdoorliving.net/uploads/1/3/2/7/132712011/zuwuterojiw_wokaluxodu_xubosefu.pdf
- http://files.oakhillspta.com/uploads/1/3/1/6/131606025/7077d875f855.pdf
- https://cdn.shopify.com/s/files/1/0433/8581/5205/files/87596353772.pdf
- https://cdn.shopify.com/s/files/1/0433/3341/9160/files/ffxiv_act_game_log_file.pdf
- https://cdn.shopify.com/s/files/1/0431/9775/9643/files/vejopafovarovowumami.pdf
- https://cdn.shopify.com/s/files/1/0453/3682/1915/files/zewepabiwitiwafugi.pdf
- https://cdn.shopify.com/s/files/1/0428/2312/3100/files/82113528441.pdf
- https://cdn.shopify.com/s/files/1/0427/6633/6167/files/ridokoraxaxewades.pdf
- https://cdn.shopify.com/s/files/1/0432/7286/3904/files/pawigixe.pdf
- https://cdn.shopify.com/s/files/1/0449/8276/3679/files/pdf_carburateur_solex.pdf
- https://cdn.shopify.com/s/files/1/0447/9270/9271/files/84512597705.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_off0000688d.bin` `d2899680e9b4a170b270369b53350215635696dfa652738fadf8add7178196ab`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x688D	5104 bytes
`font_01_sfnt_off000079c7.bin` `013b28ca5b957d7dddd2f67242dbd80e33ea8c4a0515ea3d74307dcf69f6d085`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x79C7	13208 bytes
`font_02_sfnt_off0000a2c8.bin` `f219dec414bd90fc0920dfa8e0273f8ac942b93dd557a671d641ecca9fd6996e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA2C8	17628 bytes
`font_03_sfnt_off0000bd56.bin` `4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBD56	4324 bytes

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