PDF malware analysis — malicious · 7f6d09acf2df412a

MALICIOUS

PDF

52.9 KB Created: 2020-08-07 01:26:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 040c43c05aa742e89093aeaefbbc0396 SHA-1: 33914c387eb18b75747d8375c6bc60200328d250 SHA-256: 7f6d09acf2df412a091beb48c4dc456be58aa76645ca00f7c196de3c17a564fe

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The primary malicious URL identified is https://ttraff.ru/pify?keyword=romanul+enigma+otiliei+pdf, which is part of a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains this URL, suggesting its purpose is to lure users to this malicious site.

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.ru/pify?keyword=romanul+enigma+otiliei+pdf
- http://files.durhamsciencefair.ca/uploads/1/3/1/4/131454172/1358feddd0.pdf
- http://files.hairtieandpecanpie.com/uploads/1/3/2/7/132712355/rabesofez.pdf
- http://files.troop109bonita.com/uploads/1/3/2/6/132680986/8059129.pdf
- http://winovibaf.approfessionals.us/uploads/1/3/2/6/132681556/bf2b1e0cd888948.pdf
- http://files.troop109bo
- https://cdn.shopify.com/s/files/1/0432/7555/0873/files/vanilla_warlock_leveling_guide.pdf
- https://cdn.shopify.com/s/files/1/0438/8651/0232/files/40593542142.pdf
- https://cdn.shopify.com/s/files/1/0440/2148/1622/files/91940833864.pdf
- https://cdn.shopify.com/s/files/1/0439/3077/9816/files/bioavailability_definition.pdf
- https://cdn.shopify.com/s/files/1/0450/9224/1560/files/pdf_sociologie_politique.pdf
- https://cdn.shopify.com/s/files/1/0430/9988/1639/files/1999_subaru_legacy_outback_limited.pdf
- https://cdn.shopify.com/s/files/1/0431/5653/7495/files/rikafefipidesunedurorol.pdf
- https://cdn.shopify.com/s/files/1/0432/7469/8902/files/43336905621.pdf
- https://cdn.shopify.com/s/files/1/0430/8631/5684/files/public_administration_management.pdf
- https://cdn.shopify.com/s/files/1/0428/0687/0183/files/69544591361.pdf
- https://cdn.shopify.com/s/files/1/0430/3149/4810/files/restaurant_brand_guidelines.pdf
- https://cdn.shopify.com/s/files/1/0430/4338/9597/files/45595367838.pdf
- https://cdn.shopify.com/s/files/1/0430/3863/8241/files/tanorixax.pdf
- https://cdn.shopify.com/s/files/1/0432/7319/1588/files/rebaxatusafofexitev.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_off00009304.bin` `ae585c842c84a219ffdae453935cfad08612af2554ce4a7946fac9e86bd74515`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9304	5092 bytes
`font_01_sfnt_off0000a44f.bin` `dbe923e4e38888ae35ff86197a4921cc52a4495c3c15ef04cc46a4a40287187b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA44F	9908 bytes

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