PDF malware analysis — malicious · 93339be7e4b4bb8a

MALICIOUS

PDF

35.1 KB Created: 2020-08-09 11:35:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bb14029d65e7c41d0cbb85ec4e3e74b5 SHA-1: b4b9b1382915b927bfe136c871a221e194bb83b6 SHA-256: 93339be7e4b4bb8a2c616f9e7d542b49ea5a452f367a74f97c5bd0bb76c1d7cf

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body itself is largely obfuscated but contains the primary redirect URL. This indicates a link farm attack designed to lure users to malicious 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.com/pify?keyword=bacterial+contamination+in+drinking+water+by+testing+sulphide+ion+pdf
- http://files.myvisiontravels.net/uploads/1/3/0/7/130775978/ca31c86f4cd93.pdf
- http://pefig.economicsuniverse.com/uploads/1/3/1/4/131407406/fijuzuwedus.pdf
- http://gubozeku.zionlutherandoylestown.com/uploads/1/3/1/3/131380213/3ae1c57.pdf
- http://files.ygkcombativesgroup.com/uploads/1/3/0/8/130815277/f380891376.pdf
- http://files.danielsitaly.com/uploads/1/3/0/7/130739780/vusajedibom-luvidusalefix-wanekan.pdf
- https://cdn.shopify.com/s/files/1/0438/1527/2605/files/78657751251.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/godikuka.pdf
- https://cdn.shopify.com/s/files/1/0428/0179/1132/files/94150578652.pdf
- https://cdn.shopify.com/s/files/1/0429/0599/3375/files/fimigop.pdf
- https://cdn.shopify.com/s/files/1/0431/5981/4306/files/athol_fugard_blood_knot.pdf
- https://cdn.shopify.com/s/files/1/0434/6806/2872/files/zizuxidezaredomazutoxan.pdf
- https://cdn.shopify.com/s/files/1/0431/6879/2732/files/62189859300.pdf
- https://cdn.shopify.com/s/files/1/0428/3914/6662/files/82632151220.pdf
- https://cdn.shopify.com/s/files/1/0431/6394/3067/files/papomesutomode.pdf
- https://cdn.shopify.com/s/files/1/0431/8514/3965/files/pufijujenifakelixilugolus.pdf
- https://cdn.shopify.com/s/files/1/0429/2742/3654/files/masuw.pdf
- https://cdn.shopify.com/s/files/1/0430/7917/2257/files/skoda_scala_test_adac.pdf
- https://cdn.shopify.com/s/files/1/0432/0008/6180/files/44434127504.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_off000048e9.bin` `31a6ae69ab663a5e3549db8caea7747d991dfb873712ce097ba381f9ec77bec4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x48E9	6016 bytes
`font_01_sfnt_off00005d4e.bin` `5b461b096e2f97394432eebde21929ad456be0c7a0f1aeb16475d0d791ac6723`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D4E	9784 bytes

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