PDF malware analysis — malicious · 92cd9063d6a54cd9

MALICIOUS

PDF

50.0 KB Created: 2020-08-23 21:43:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c250eff38a56f09b44e2961ecbf65743 SHA-1: 19f1a42b3d19f62768ac59a2366cb57ce2e5026e SHA-256: 92cd9063d6a54cd92c9db531a5e73f0a64cea5701c252ff51cb1cf76c444b90e

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. This suggests a link farm or SEO poisoning technique used to distribute malicious content. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the intent to redirect the user. No scripts were extracted, limiting the analysis of further stages.

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=just+the+facts+investigative+report+writing+pdf
- http://files.travelerstateofmind.com/uploads/1/3/0/7/130738836/3933268.pdf
- http://lamur.whistlepigsaloon.com/uploads/1/3/0/8/130814017/7145142.pdf
- http://gofen.clubviprec.com/uploads/1/3/0/8/130873851/eb9f716cae.pdf
- http://files.mrsthurberhistorycom.com/uploads/1/3/1/6/131636834/jamutokofov.pdf
- https://cdn.shopify.com/s/files/1/0431/1131/7658/files/wedefiwawedit.pdf
- https://cdn.shopify.com/s/files/1/0429/2440/8991/files/rijije.pdf
- https://cdn.shopify.com/s/files/1/0431/1390/6327/files/tedavovisimup.pdf
- https://cdn.shopify.com/s/files/1/0429/8365/3535/files/98513695453.pdf
- https://cdn.shopify.com/s/files/1/0434/3100/2269/files/jabavazomosalemefagazubo.pdf
- https://cdn.shopify.com/s/files/1/0428/8145/0147/files/77530615163.pdf
- https://cdn.shopify.com/s/files/1/0434/4535/4658/files/15933065522.pdf
- https://cdn.shopify.com/s/files/1/0433/1651/0873/files/fasenerotizutibilixit.pdf
- https://cdn.shopify.com/s/files/1/0428/1411/1903/files/52129329792.pdf
- https://cdn.shopify.com/s/files/1/0432/7024/2460/files/zonebi.pdf
- https://cdn.shopify.com/s/files/1/0434/3595/0241/files/les_alphas_livre_du_maitre.pdf
- https://cdn.shopify.com/s/files/1/0431/2409/7191/files/counter_strike_1._6_free_for_mac.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000756f.bin` `30f129f660f956ee6280934d399c74215bf4ccdd85260d0e5ff0563a4a50744c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x756F	5408 bytes
`font_01_sfnt_off000087da.bin` `b92f87a3c1de8a1ba4a3af2fb1a8e5901fa1ba4f92ddc5d9ce8b6bb8fb388b76`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x87DA	10624 bytes
`font_02_sfnt_off0000ac16.bin` `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAC16	4324 bytes

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