PDF malware analysis — malicious · fec097dc0bf362cb

MALICIOUS

PDF

51.4 KB Created: 2020-08-11 19:24:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9afb3a6abde75a7a7ea3be3c9fc72734 SHA-1: 50d7f0d9fb526c98b92ff1284123086b75de505a SHA-256: fec097dc0bf362cb5358e9fb661a2d8b2b40f0d0cc7e9d709ab337435fd0e6fb

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.cc, disguised with a keyword related to SAP basis transactions. The document also features a large number of external PDF links, characteristic of SEO link farms used to distribute malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful sites.

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.cc/pify?keyword=sap+basis+transactions+pdf
- http://files.sadeghimckenzie.com/uploads/1/3/1/4/131438308/3cadae4.pdf
- http://files.sunshineofsa.com/uploads/1/3/1/4/131437295/2752910.pdf
- http://files.tiffinindia.ca/uploads/1/3/2/3/132303270/xaxanenafalubozidolu.pdf
- http://files.kiuyanran.com/uploads/1/3/0/7/130739456/fegatupipidafor.pdf
- http://files.wicklowart.com/uploads/1/3/0/9/130968956/mikudox-zutotep-lulamubeg.pdf
- https://cdn.shopify.com/s/files/1/0429/5249/1159/files/71624196530.pdf
- https://cdn.shopify.com/s/files/1/0431/2642/3701/files/raxevosi.pdf
- https://cdn.shopify.com/s/files/1/0436/1427/3693/files/bodybuilding_exercises_training.pdf
- https://cdn.shopify.com/s/files/1/0433/2965/0843/files/pifaludidobazidu.pdf
- https://cdn.shopify.com/s/files/1/0437/9394/0641/files/raworalasekaxelem.pdf
- https://cdn.shopify.com/s/files/1/0433/6913/6284/files/states_and_capitals_of_nigeria.pdf
- https://cdn.shopify.com/s/files/1/0437/8846/8376/files/datupurabewibelukew.pdf
- https://cdn.shopify.com/s/files/1/0433/3282/9342/files/47485726485.pdf
- https://cdn.shopify.com/s/files/1/0432/3550/8392/files/metujegazuvedupebuj.pdf
- https://cdn.shopify.com/s/files/1/0432/5149/9170/files/34680200450.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_off00007230.bin` `32d352819bb7ebb4dfaf2dc515c8c2496c944b965ea30f187e6f1bd679e4546c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7230	5028 bytes
`font_01_sfnt_off00008332.bin` `95e8f91078f027fdfc426757e195b2882dc0f4587054ce198c5ab1f5e199c33c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8332	15276 bytes
`font_02_sfnt_off0000b211.bin` `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB211	4324 bytes

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